CreoOtkPluging/CreoManager.cpp
sladro 99c6d17795 feat: 为shell-analysis接口添加投票数量字段
- 在FeatureDeletion结构体中添加vote_count字段,记录多方向投影分析中的投票数量
- 在AnalyzeShellFeaturesEnhanced函数中填充投票数据,利用visibilityVotes映射
- 更新JSON响应,为safeDeletions、suggestedDeletions、preserveList添加voteCount字段
- 提供模型外表面可见性程度的量化指标,增强分析结果的透明度

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-09-19 16:40:23 +08:00

3342 lines
132 KiB
C++
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

#include "pch.h"
#include "CreoManager.h"
#include <wfcAssembly.h>
#include <pfcBase.h>
#include <pfcGlobal.h>
#include <pfcExport.h>
#include <pfcModel.h>
#include <pfcFeature.h>
#include <pfcSolid.h>
#include <wfcSolid.h>
#include <wfcFeatureInstructions.h>
#include <pfcInterference.h>
#include <pfcSelect.h>
#include <pfcGeometry.h>
#include <stdcols.h>
#include <ctime>
#include <sstream>
#define _USE_MATH_DEFINES
#include <cmath>
#include <cstdlib>
#include <iomanip>
#include <fstream>
// Define PI constant for compatibility
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
#include <windows.h>
#include <vector>
#include <limits>
#include <map>
#include <unordered_map>
#include <string>
#include <set>
#include <unordered_set>
#include <cstdlib>
#include <algorithm>
#include <functional>
#include <cmath>
// 防止Windows宏冲突
#ifdef max
#undef max
#endif
#ifdef min
#undef min
#endif
// 构造函数:简化实现
CreoManager::CreoManager() {
// 配置设置可能需要通过config.pro文件或其他方式
// 暂时移除代码中的配置设置
}
CreoManager& CreoManager::Instance() {
static CreoManager instance;
return instance;
}
CreoStatus CreoManager::GetCreoStatus() {
CreoStatus status;
SessionInfo sessionInfo = GetSessionInfo();
status.is_connected = sessionInfo.is_valid;
status.version = sessionInfo.version;
status.build = sessionInfo.build;
if (sessionInfo.is_valid) {
// 获取工作目录
try {
xstring workdir = sessionInfo.session->GetCurrentDirectory();
status.working_directory = XStringToString(workdir);
}
catch (...) {
status.working_directory = "Failed to get working directory";
}
status.session_id = 1;
} else {
status.working_directory = "Failed to connect to Creo";
status.session_id = 0;
}
return status;
}
ModelStatus CreoManager::GetModelStatus() {
ModelStatus status;
SessionInfo sessionInfo = GetSessionInfo();
if (!sessionInfo.is_valid) {
return status;
}
try {
pfcModel_ptr current_model = sessionInfo.session->GetCurrentModel();
if (current_model) {
status.has_model = true;
// 获取模型名称和文件名
try {
xstring name_xstr = current_model->GetFileName();
status.name = XStringToString(name_xstr);
status.filename = status.name;
}
catch (...) {
status.name = "Failed to get model name";
status.filename = "Failed to get filename";
}
// 获取模型类型
try {
pfcModelType model_type = current_model->GetType();
switch (model_type) {
case pfcMDL_PART:
status.type = "Part";
status.is_assembly = false;
break;
case pfcMDL_ASSEMBLY:
status.type = "Assembly";
status.is_assembly = true;
break;
case pfcMDL_DRAWING:
status.type = "Drawing";
status.is_assembly = false;
break;
default:
status.type = "";
status.is_assembly = false;
break;
}
}
catch (...) {
status.type = "Failed to get model type";
status.is_assembly = false;
}
// 获取模型文件大小(装配体统计所有零件和子装配体的总大小)
try {
if (status.is_assembly) {
// 装配体:统计所有组件的文件大小
status.file_size = CalculateAssemblyTotalSize(current_model);
} else {
// 单个零件:直接获取文件大小
status.file_size = GetModelFileSize(current_model);
}
}
catch (...) {
status.file_size = "Exception getting file size";
}
// 检查模型是否已修改
try {
status.is_modified = current_model->GetIsModified();
}
catch (...) {
status.is_modified = false; // 默认值:未修改
}
// 获取真实的零件数量和装配体层级
if (status.is_assembly) {
try {
wfcWAssembly_ptr wAssembly = wfcWAssembly::cast(current_model);
if (wAssembly) {
// 获取所有显示的组件
wfcWComponentPaths_ptr components = wAssembly->ListDisplayedComponents();
if (components) {
status.total_parts = components->getarraysize();
} else {
status.total_parts = 0;
}
status.assembly_levels = SafeCalculateAssemblyLevels(wAssembly);
} else {
status.total_parts = 0;
status.assembly_levels = 0;
}
}
catch (...) {
status.total_parts = 0;
status.assembly_levels = 0;
}
} else {
// 非装配体(零件)的真实数据
status.total_parts = 1;
status.assembly_levels = 1;
}
// 解析软件信息
std::string full_version = sessionInfo.version;
size_t space_pos = full_version.find(" ");
if (space_pos != std::string::npos) {
status.software = full_version.substr(0, space_pos);
status.version = full_version.substr(space_pos + 1);
} else {
status.software = "Failed to parse software name";
status.version = "Failed to parse version";
}
// 设置其他信息
status.connection_time = GetCurrentTimeString();
status.open_time = status.connection_time;
status.connection_status = "Connected";
}
}
catch (...) {
status.has_model = false;
status.name = "Failed to access model";
status.filename = "Failed to access model";
status.type = "Failed to access model";
status.is_assembly = false;
status.total_parts = 0;
status.assembly_levels = 0;
status.software = "Failed to access model";
status.version = "Failed to access model";
status.connection_time = "Failed to get time";
status.open_time = "Failed to get time";
status.connection_status = "Failed to get status";
status.file_size = "Failed to access model";
}
return status;
}
bool CreoManager::ShowMessage(const std::string& message) {
SessionInfo sessionInfo = GetSessionInfo();
if (!sessionInfo.is_valid) {
return false;
}
try {
xstring msg_xstr = StringToXString(message);
sessionInfo.wSession->UIShowMessageDialog(msg_xstr, NULL);
return true;
}
catch (...) {
return false;
}
}
std::string CreoManager::XStringToString(const xstring& xstr) {
try {
// 安全检查空xstring处理
if (xstr.IsNull()) {
return "";
}
std::wstring wstr(xstr);
if (wstr.empty()) {
return "";
}
// 长度限制检查,防止过长字符串导致内存问题
if (wstr.length() > 32767) { // Windows API限制
return "";
}
// 使用WideCharToMultiByte进行正确的UTF-8编码转换
int wstr_len = static_cast<int>(wstr.length());
int size_needed = WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), wstr_len, NULL, 0, NULL, NULL);
if (size_needed <= 0 || size_needed > 65535) { // 安全边界检查
return "";
}
std::string result(size_needed, 0);
int convert_result = WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), wstr_len, &result[0], size_needed, NULL, NULL);
if (convert_result != size_needed) {
return ""; // 转换失败
}
return result;
}
catch (const std::bad_alloc&) {
return ""; // 内存分配失败
}
catch (const std::length_error&) {
return ""; // 字符串长度错误
}
catch (...) {
return "";
}
}
xstring CreoManager::StringToXString(const std::string& str) {
try {
if (str.empty()) {
return xstring();
}
// 长度限制检查,防止过长字符串导致内存问题
if (str.length() > 65535) { // 合理的长度限制
return xstring();
}
// 验证输入字符串是否包含无效字符
for (char c : str) {
if (c == '\0' && &c != &str.back()) { // 中间包含null字符
return xstring();
}
}
// 使用MultiByteToWideChar进行正确的UTF-8解码转换
int str_len = static_cast<int>(str.length());
int size_needed = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str.c_str(), str_len, NULL, 0);
if (size_needed <= 0 || size_needed > 32767) { // 安全边界检查
return xstring();
}
std::wstring wstr(size_needed, 0);
int convert_result = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str.c_str(), str_len, &wstr[0], size_needed);
if (convert_result != size_needed) {
return xstring(); // 转换失败
}
return xstring(wstr.c_str());
}
catch (const std::bad_alloc&) {
return xstring(); // 内存分配失败
}
catch (const std::length_error&) {
return xstring(); // 字符串长度错误
}
catch (...) {
return xstring();
}
}
// 路径分离和验证函数
std::pair<std::string, std::string> CreoManager::ParseFilePath(const std::string& file_path) {
std::string dirname, filename;
if (file_path.empty()) {
return std::make_pair("", "");
}
// 支持Windows和Unix路径分隔符
size_t pos = file_path.find_last_of("/\\");
if (pos != std::string::npos) {
dirname = file_path.substr(0, pos);
filename = file_path.substr(pos + 1);
} else {
dirname = "";
filename = file_path;
}
// 基本验证:文件名不能为空
if (filename.empty()) {
return std::make_pair("", "");
}
// 验证文件名不包含非法字符
const std::string invalid_chars = "<>:\"|?*";
if (filename.find_first_of(invalid_chars) != std::string::npos) {
return std::make_pair("", "");
}
return std::make_pair(dirname, filename);
}
std::string CreoManager::GetCurrentTimeString() {
std::time_t now = std::time(nullptr);
std::tm* local_tm = std::localtime(&now);
std::ostringstream oss;
oss << std::put_time(local_tm, "%Y-%m-%d %H:%M:%S");
return oss.str();
}
std::string CreoManager::GetCurrentTimeStringISO() {
std::time_t now = std::time(nullptr);
std::tm* utc_tm = std::gmtime(&now);
std::ostringstream oss;
oss << std::put_time(utc_tm, "%Y-%m-%dT%H:%M:%S");
oss << ".000000Z"; // 添加微秒和UTC标识
return oss.str();
}
CreoManager::SessionInfo CreoManager::GetSessionInfo() {
SessionInfo info;
info.is_valid = false;
try {
info.session = pfcGetCurrentSessionWithCompatibility(pfcC4Compatible);
if (info.session) {
info.wSession = wfcWSession::cast(info.session);
if (info.wSession) {
// 获取版本信息
int version_num = info.wSession->GetReleaseNumericVersion();
xstring date_code = info.wSession->GetDisplayDateCode();
// 尝试获取真实的软件名称
std::string software_name = "Creo"; // 基础名称,如果无法获取更详细的名称
std::ostringstream version_str;
version_str << software_name << " " << version_num << ".0";
info.version = version_str.str();
info.build = XStringToString(date_code);
info.is_valid = true;
} else {
info.version = "Failed to get version";
info.build = "Failed to get build";
}
} else {
info.version = "Failed to connect to Creo";
info.build = "Failed to connect to Creo";
}
}
catch (...) {
info.version = "Failed to get version";
info.build = "Failed to get build";
}
return info;
}
std::string CreoManager::GetFileSize(const std::string& filepath) {
try {
if (filepath.empty()) {
return "Empty filepath";
}
// 复用现有的字符串转换逻辑
xstring xpath = StringToXString(filepath);
std::wstring wpath(xpath);
WIN32_FILE_ATTRIBUTE_DATA fileInfo;
if (GetFileAttributesExW(wpath.c_str(), GetFileExInfoStandard, &fileInfo)) {
LARGE_INTEGER size;
size.HighPart = fileInfo.nFileSizeHigh;
size.LowPart = fileInfo.nFileSizeLow;
double file_size_mb = static_cast<double>(size.QuadPart) / (1024.0 * 1024.0);
std::ostringstream oss;
oss << std::fixed << std::setprecision(1) << file_size_mb << "MB";
return oss.str();
} else {
DWORD error = GetLastError();
std::ostringstream oss;
oss << "File access failed (Error: " << error << ") Path: " << filepath;
return oss.str();
}
}
catch (...) {
return "Exception in GetFileSize";
}
}
int CreoManager::SafeCalculateAssemblyLevels(wfcWAssembly_ptr assembly) {
try {
if (!assembly) {
return 1;
}
// 使用ComponentPath分析装配体层级深度
wfcWComponentPaths_ptr components = assembly->ListDisplayedComponents();
if (!components) {
return 1;
}
int component_count = components->getarraysize();
if (component_count == 0) {
return 1;
}
int max_level = 1;
// 移除组件数量限制,检查所有组件
for (int i = 0; i < component_count; i++) {
try {
wfcWComponentPath_ptr comp_path = components->get(i);
if (comp_path) {
// 使用GetComponentIds获取组件路径
xintsequence_ptr ids = comp_path->GetComponentIds();
if (ids) {
// 路径深度就是装配体层级
int path_depth = ids->getarraysize();
if (path_depth > max_level) {
max_level = path_depth;
}
}
}
}
catch (...) {
// 跳过有问题的组件
continue;
}
}
// Add 1 to include root assembly level, consistent with hierarchy analysis
return max_level + 1;
}
catch (...) {
return 1;
}
}
std::string CreoManager::GetModelFileSize(pfcModel_ptr model) {
try {
if (!model) {
return "0.0MB";
}
// 先检查模型是否可以安全调用GetDescr
try {
pfcModelDescriptor_ptr descr = model->GetDescr();
if (!descr) {
return "0.0MB";
}
} catch (...) {
// 如果GetDescr失败可能是轻量级模型尝试其他方法
try {
xstring origin = model->GetOrigin();
std::string origin_str = XStringToString(origin);
if (!origin_str.empty()) {
return GetFileSize(origin_str);
}
} catch (...) {
// 所有方法都失败,返回默认值
return "0.0MB";
}
return "0.0MB";
}
// 使用origin路径获取文件大小
try {
xstring origin = model->GetOrigin();
std::string origin_str = XStringToString(origin);
if (!origin_str.empty()) {
return GetFileSize(origin_str);
}
} catch (...) {
return "0.0MB";
}
return "0.0MB";
}
catch (...) {
return "0.0MB";
}
}
double CreoManager::ParseMBFromSizeString(const std::string& size_str) {
try {
if (size_str.find("MB") != std::string::npos) {
size_t mb_pos = size_str.find("MB");
std::string size_num = size_str.substr(0, mb_pos);
return std::stod(size_num);
}
return 0.0;
}
catch (...) {
return 0.0;
}
}
std::string CreoManager::CalculateAssemblyTotalSize(pfcModel_ptr model) {
try {
wfcWAssembly_ptr assembly = wfcWAssembly::cast(model);
if (!assembly) {
return "Not an assembly";
}
double total_size_bytes = 0;
int processed_count = 0;
// 首先添加主装配体文件大小
std::string main_size = GetModelFileSize(model);
double main_mb = ParseMBFromSizeString(main_size);
if (main_mb > 0) {
total_size_bytes += main_mb * 1024 * 1024;
processed_count++;
}
// 使用ListDisplayedComponents获取组件保持原有逻辑
wfcWComponentPaths_ptr components = assembly->ListDisplayedComponents();
if (components) {
int component_count = components->getarraysize();
for (int i = 0; i < component_count; i++) {
try {
wfcWComponentPath_ptr comp_path = components->get(i);
if (comp_path) {
pfcSolid_ptr leaf_solid = comp_path->GetLeaf();
if (leaf_solid) {
pfcModel_ptr comp_model = pfcModel::cast(leaf_solid);
if (comp_model) {
std::string comp_size = GetModelFileSize(comp_model);
double comp_mb = ParseMBFromSizeString(comp_size);
// Always count valid components, regardless of file size
processed_count++;
if (comp_mb > 0) {
total_size_bytes += comp_mb * 1024 * 1024;
}
}
}
}
}
catch (...) {
continue;
}
}
}
// 转换为MB并返回
double total_mb = total_size_bytes / (1024.0 * 1024.0);
std::ostringstream oss;
oss << std::fixed << std::setprecision(1) << total_mb << "MB (from " << processed_count << " files)";
return oss.str();
}
catch (...) {
return "Exception in CalculateAssemblyTotalSize";
}
}
ExportResult CreoManager::ExportModelToSTEP(const std::string& export_path, const std::string& geom_flags) {
ExportResult result;
SessionInfo sessionInfo = GetSessionInfo();
if (!sessionInfo.is_valid) {
result.error_message = "Creo session not available";
return result;
}
try {
pfcModel_ptr current_model = sessionInfo.session->GetCurrentModel();
if (!current_model) {
result.error_message = "No current model loaded";
return result;
}
// 检查导出路径是否有效
if (export_path.empty()) {
result.error_message = "Invalid export path";
return result;
}
// 检查模型类型是否支持导出
pfcModelType model_type = current_model->GetType();
if (model_type != pfcMDL_PART && model_type != pfcMDL_ASSEMBLY) {
result.error_message = "Model type not supported for export";
return result;
}
// 创建几何导出标志
pfcGeomExportFlags_ptr geometryFlags = pfcGeomExportFlags::Create();
// 创建STEP导出指令
pfcSTEPExportInstructions_ptr exportInstructions =
pfcSTEPExportInstructions::Create(geometryFlags);
// 执行导出 - 使用xrstring类型
xrstring export_path_xrstr = export_path.c_str();
current_model->Export(export_path_xrstr, pfcExportInstructions::cast(exportInstructions));
// 检查导出文件是否存在使用Windows API
WIN32_FILE_ATTRIBUTE_DATA fileInfo;
if (GetFileAttributesExA(export_path.c_str(), GetFileExInfoStandard, &fileInfo)) {
result.success = true;
result.export_path = export_path;
result.file_size = GetFileSize(export_path);
result.format = "step";
result.export_time = GetCurrentTimeStringISO();
result.software = "Creo Parametric";
// 获取原始文件信息
try {
xstring name_xstr = current_model->GetFileName();
result.original_file = XStringToString(name_xstr);
} catch (...) {
result.original_file = "Unknown";
}
// 解析目录和文件名
size_t last_slash = export_path.find_last_of("\\/");
if (last_slash != std::string::npos) {
result.dirname = export_path.substr(0, last_slash);
result.filename = export_path.substr(last_slash + 1);
} else {
result.dirname = "";
result.filename = export_path;
}
} else {
result.error_message = "Export file not created";
}
}
catch (...) {
result.error_message = "Export operation failed";
}
return result;
}
// 保存模型功能实现
SaveResult CreoManager::SaveModel() {
SaveResult result;
SessionInfo sessionInfo = GetSessionInfo();
if (!sessionInfo.is_valid) {
result.error_message = "Creo session not available";
return result;
}
try {
pfcModel_ptr current_model = sessionInfo.session->GetCurrentModel();
if (!current_model) {
result.error_message = "No current model loaded";
return result;
}
// 获取文件信息
xstring original_name = current_model->GetFileName();
result.original_file = XStringToString(original_name);
result.software = "Creo Parametric";
// 执行保存操作
current_model->Save();
// 设置成功结果
result.save_time = GetCurrentTimeStringISO();
result.file_size = GetModelFileSize(current_model);
result.success = true;
}
catch (const pfcXToolkitBadInputs&) {
result.error_message = "Bad input parameters";
}
catch (const pfcXToolkitGeneralError&) {
result.error_message = "Creo toolkit error";
}
catch (const pfcXToolkitInvalidName&) {
result.error_message = "Invalid file name";
}
catch (const pfcXToolkitCantWrite&) {
result.error_message = "Cannot write to file";
}
catch (const pfcXToolkitCantOpen&) {
result.error_message = "Cannot open file";
}
catch (const std::exception& e) {
result.error_message = "Standard error: " + std::string(e.what());
}
catch (...) {
result.error_message = "Unknown error during save operation";
}
return result;
}
// 关闭模型功能实现
CloseResult CreoManager::CloseModel(bool force_close) {
CloseResult result;
SessionInfo sessionInfo = GetSessionInfo();
if (!sessionInfo.is_valid) {
result.error_message = "Creo session not available";
return result;
}
try {
pfcModel_ptr current_model = sessionInfo.session->GetCurrentModel();
if (!current_model) {
result.error_message = "No current model loaded";
return result;
}
// 获取模型信息
xstring model_name_xstr = current_model->GetFileName();
result.model_name = XStringToString(model_name_xstr);
// 检查模型是否已修改
result.was_modified = current_model->GetIsModified();
// 如果模型已修改且不是强制关闭,则需要处理
if (result.was_modified && !force_close) {
result.error_message = "Model has unsaved changes. Use force_close=true to close without saving.";
return result;
}
// 执行关闭操作
current_model->Erase();
// 设置成功结果
result.close_time = GetCurrentTimeStringISO();
result.success = true;
}
catch (const pfcXToolkitBadInputs&) {
result.error_message = "Bad input parameters";
}
catch (const pfcXToolkitGeneralError&) {
result.error_message = "Creo toolkit error";
}
catch (const pfcXToolkitInvalidName&) {
result.error_message = "Invalid model name";
}
catch (const std::exception& e) {
result.error_message = "Standard error: " + std::string(e.what());
}
catch (...) {
result.error_message = "Unknown error during close operation";
}
return result;
}
// 打开模型功能
OpenResult CreoManager::OpenModel(const std::string& file_path, const std::string& open_mode) {
OpenResult result;
// 分离目录和文件名(内联实现,避免成员函数调用问题)
std::string dirname, filename;
size_t pos = file_path.find_last_of("/\\");
if (pos != std::string::npos) {
dirname = file_path.substr(0, pos);
filename = file_path.substr(pos + 1);
} else {
dirname = "";
filename = file_path;
}
SessionInfo sessionInfo = GetSessionInfo();
if (!sessionInfo.is_valid) {
result.error_message = "Creo session not available";
return result;
}
try {
// 验证路径解析结果
if (filename.empty()) {
result.error_message = "Invalid file path: " + file_path;
return result;
}
// 创建模型描述符用于检查符合CREOSON标准
xstring filename_xstr = StringToXString(filename);
pfcModelDescriptor_ptr checkDesc = pfcModelDescriptor::CreateFromFileName(filename_xstr);
// 检查模型是否已在会话中打开使用描述符符合CREOSON标准模式
// 对应CREOSON中的: session.getModelFromDescr(descr)
pfcModel_ptr opened_model = nullptr;
try {
opened_model = sessionInfo.session->GetModelFromDescr(checkDesc);
} catch (...) {
// 模型未在内存中,稍后需要从磁盘加载
opened_model = nullptr;
}
if (!dirname.empty()) {
xstring workdir = StringToXString(dirname);
sessionInfo.session->ChangeDirectory(workdir);
}
// 重用已创建的模型描述符(避免重复创建)
// 使用RetrieveModel打开模型对应CREOSON的session.retrieveModel(descr)
opened_model = sessionInfo.session->RetrieveModel(checkDesc);
// 检查模型是否成功打开
if (!opened_model) {
result.error_message = "Failed to open model '" + filename + "' from directory '" + dirname + "'";
return result;
}
// 设置返回结果
result.success = true;
result.model_name = XStringToString(opened_model->GetFileName());
result.file_path = file_path;
result.open_time = GetCurrentTimeStringISO();
// 确定模型类型
try {
pfcModelType model_type = opened_model->GetType();
switch (model_type) {
case pfcMDL_ASSEMBLY:
result.model_type = "assembly";
result.is_assembly = true;
try {
pfcSolid_ptr solid = pfcSolid::cast(opened_model);
if (solid) {
pfcFeatures_ptr features = solid->ListFeaturesByType(false, pfcFEATTYPE_COMPONENT);
result.total_parts = features ? features->getarraysize() : 0;
}
} catch (...) {
result.total_parts = 0;
}
break;
case pfcMDL_PART:
result.model_type = "part";
result.is_assembly = false;
result.total_parts = 0;
break;
case pfcMDL_DRAWING:
result.model_type = "drawing";
result.is_assembly = false;
result.total_parts = 0;
break;
default:
result.model_type = "unknown";
result.is_assembly = false;
result.total_parts = 0;
break;
}
} catch (...) {
result.model_type = "unknown";
result.is_assembly = false;
result.total_parts = 0;
}
result.file_size = GetModelFileSize(opened_model);
result.model_in_session = true;
result.window_model_match = true;
}
catch (const xthrowable& e) {
result.error_message = "OTK error opening model '" + filename + "': Creo API exception occurred";
}
catch (const std::exception& e) {
result.error_message = "Standard exception opening model '" + filename + "': " + std::string(e.what());
}
catch (...) {
result.error_message = "Unknown error opening model '" + filename + "' from directory '" + dirname + "'";
}
return result;
}
// 层级分析主方法
HierarchyAnalysisResult CreoManager::AnalyzeModelHierarchy(const HierarchyAnalysisRequest& request) {
HierarchyAnalysisResult result;
SessionInfo sessionInfo = GetSessionInfo();
if (!sessionInfo.is_valid) {
result.error_message = "Creo session not available";
return result;
}
try {
pfcModel_ptr current_model = sessionInfo.session->GetCurrentModel();
if (!current_model) {
result.error_message = "No current model loaded";
return result;
}
// 检查是否为装配体
if (current_model->GetType() != pfcMDL_ASSEMBLY) {
result.error_message = "Current model is not an assembly";
return result;
}
// 转换为装配体
wfcWAssembly_ptr assembly = wfcWAssembly::cast(current_model);
if (!assembly) {
result.error_message = "Failed to cast model to assembly";
return result;
}
// 初始化结果SOTA算法
result.project_name = request.project_name.empty() ?
XStringToString(current_model->GetFileName()) : request.project_name;
result.total_levels = 0;
result.total_components = 0;
result.hierarchy.clear();
// 创建根装配体组件信息
ComponentInfo root_component;
// 获取根装配体文件名
try {
xstring filename_xstr = current_model->GetFileName();
root_component.id = XStringToString(filename_xstr);
} catch (...) {
try {
xstring origin = current_model->GetOrigin();
std::string origin_str = XStringToString(origin);
size_t pos = origin_str.find_last_of("/\\");
if (pos != std::string::npos) {
root_component.id = origin_str.substr(pos + 1);
} else {
root_component.id = origin_str;
}
} catch (...) {
root_component.id = "root_assembly.asm";
}
}
// 设置根装配体属性
root_component.name = root_component.id;
root_component.type = "assembly";
root_component.level = 0;
root_component.path = root_component.id;
root_component.full_path = root_component.id;
root_component.file_size = GetModelFileSize(current_model);
root_component.deletion_safety = "forbidden";
root_component.is_visible = true;
root_component.model_type = "MDL_ASSEMBLY";
root_component.children_count = 0; // 将在递归后计算
// 初始化层级0并添加根装配体只在target_level为-1或0时添加
if (request.target_level == -1 || request.target_level == 0) {
result.hierarchy.push_back(std::vector<ComponentInfo>());
result.hierarchy[0].push_back(root_component);
}
// 使用新的SOTA递归算法分析子组件从层级1开始
AnalyzeAssemblyNode(assembly, 1, root_component.name, root_component.path, result, request.target_level);
// 计算根装配体的children_count只在根装配体被包含时
if ((request.target_level == -1 || request.target_level == 0) &&
result.hierarchy.size() > 0 && result.hierarchy[0].size() > 0) {
// 安全地计算第一层的实际组件数
try {
pfcFeatures_ptr features = assembly->ListFeaturesByType(xfalse, pfcFEATTYPE_COMPONENT);
if (features) {
result.hierarchy[0][0].children_count = features->getarraysize();
}
} catch (...) {
result.hierarchy[0][0].children_count = 0;
}
}
// 计算最终统计
// total_levels已经在递归过程中正确计算保持装配体的实际总层级数
// 不需要基于hierarchy.size()重新计算因为当指定target_level时hierarchy可能只包含部分层级
// 计算总组件数(从所有层级统计)
result.total_components = 0;
for (const auto& level : result.hierarchy) {
result.total_components += level.size();
}
// 设置成功状态
result.success = true;
result.message = "Hierarchy analysis completed";
return result;
} catch (const std::exception& e) {
result.error_message = "Exception during hierarchy analysis: " + std::string(e.what());
} catch (...) {
result.error_message = "Unknown exception during hierarchy analysis";
}
return result;
}
// 评估删除安全性
std::string CreoManager::EvaluateDeletionSafety(const ComponentInfo& component) {
if (component.level == 0) {
return "forbidden"; // 主装配体不能删除
}
if (component.type == "assembly") {
return "risky"; // 子装配体删除有风险
}
return "moderate"; // 零件删除相对安全
}
// 获取组件文件大小 (使用更安全的方法)
std::string CreoManager::GetComponentFileSize(wfcWComponentPath_ptr component_path) {
try {
pfcSolid_ptr leaf_model = component_path->GetLeaf();
if (leaf_model) {
// 使用更安全的转换方法
pfcModel_ptr model = pfcModel::cast(leaf_model);
if (model) {
return GetModelFileSize(model);
}
}
} catch (...) {
// 捕获所有异常,返回默认值
}
return "0.0MB";
}
// 获取模型类型字符串
std::string CreoManager::GetModelTypeString(pfcModelType model_type) {
switch (model_type) {
case pfcMDL_ASSEMBLY:
return "MDL_ASSEMBLY";
case pfcMDL_PART:
return "MDL_PART";
case pfcMDL_DRAWING:
return "MDL_DRAWING";
default:
return "MDL_UNKNOWN";
}
}
// 计算子组件数量
int CreoManager::CountChildComponents(wfcWComponentPath_ptr component_path) {
try {
pfcSolid_ptr leaf_model = component_path->GetLeaf();
if (leaf_model && leaf_model->GetType() == pfcMDL_ASSEMBLY) {
wfcWAssembly_ptr sub_assembly = wfcWAssembly::cast(leaf_model);
if (sub_assembly) {
wfcWComponentPaths_ptr sub_components = sub_assembly->ListDisplayedComponents();
if (sub_components) {
return sub_components->getarraysize();
}
}
}
} catch (...) {
// 忽略错误
}
return 0;
}
// =============== SOTA层级分析算法 ===============
void CreoManager::AnalyzeAssemblyNode(wfcWAssembly_ptr assembly,
int level,
const std::string& parentName,
const std::string& currentPath,
HierarchyAnalysisResult& result,
int target_level) {
if (!assembly) return;
try {
// 更新最大层级深度(始终统计)
if (level + 1 > result.total_levels) {
result.total_levels = level + 1;
}
// 确保层级容器足够大(只在需要时创建)
if (target_level == -1 || level == target_level) {
// 确保hierarchy有足够的空间到指定层级
// 即使前面的层级是空的,也要保证索引正确
while (result.hierarchy.size() <= level) {
result.hierarchy.push_back(std::vector<ComponentInfo>());
}
}
// 使用ListFeaturesByType获取所有组件特征包括隐藏的
pfcFeatures_ptr features = assembly->ListFeaturesByType(xfalse, pfcFEATTYPE_COMPONENT);
if (!features) return;
int features_count = features->getarraysize();
if (features_count <= 0) return;
// 遍历所有组件特征
for (int i = 0; i < features_count; i++) {
try {
pfcFeature_ptr feature = features->get(i);
if (!feature) continue;
// 转换为组件特征
pfcComponentFeat_ptr compFeat = pfcComponentFeat::cast(feature);
if (!compFeat) continue;
// 加载模型一次(避免重复调用)
pfcModel_ptr childModel = LoadComponentModel(compFeat);
// 创建组件信息,传递已加载的模型
ComponentInfo component = CreateComponentFromFeature(compFeat, level, parentName, currentPath, childModel);
// 只在指定层级或返回所有层级时添加到结果
if (target_level == -1 || level == target_level) {
result.hierarchy[level].push_back(component);
}
// 递归处理子装配体
if (component.type == "assembly" && childModel) {
try {
if (childModel->GetType() == pfcMDL_ASSEMBLY) {
wfcWAssembly_ptr childAssembly = wfcWAssembly::cast(childModel);
if (childAssembly) {
// 始终递归处理子装配体需要统计total_components等
AnalyzeAssemblyNode(childAssembly, level + 1,
component.name, component.path, result, target_level);
}
}
} catch (...) {
// 处理无法加载的子装配体
}
}
} catch (...) {
continue; // 忽略单个组件错误
}
}
// children_count在CreateComponentFromFeature中已经设置
} catch (...) {
// 处理整体错误
}
}
ComponentInfo CreoManager::CreateComponentFromFeature(pfcComponentFeat_ptr compFeat,
int level,
const std::string& parentName,
const std::string& currentPath,
pfcModel_ptr preloadedModel) {
ComponentInfo component;
component.level = level;
component.children_count = 0;
component.is_visible = true;
component.file_size = "0.0MB";
component.deletion_safety = "moderate";
try {
// 获取组件模型描述符
auto modelDescr = compFeat->GetModelDescr();
if (modelDescr) {
// 获取文件名作为ID
xstring filename_xstr = modelDescr->GetFileName();
component.id = XStringToString(filename_xstr);
// 生成显示名称(去掉扩展名并格式化)
component.name = component.id;
size_t ext_pos = component.name.find_last_of(".");
if (ext_pos != std::string::npos) {
component.name = component.name.substr(0, ext_pos);
}
// 格式化显示名称
if (!component.name.empty()) {
component.name[0] = std::toupper(component.name[0]);
for (size_t i = 1; i < component.name.size(); i++) {
if (component.name[i-1] == '_' || component.name[i-1] == ' ') {
component.name[i] = std::toupper(component.name[i]);
} else {
component.name[i] = std::tolower(component.name[i]);
}
}
std::replace(component.name.begin(), component.name.end(), '_', ' ');
}
// 设置组件类型
if (modelDescr->GetType() == pfcMDL_ASSEMBLY) {
component.type = "assembly";
component.model_type = "MDL_ASSEMBLY";
} else {
component.type = "part";
component.model_type = "MDL_PART";
}
// 构建完整路径
if (currentPath.empty()) {
component.path = component.id;
} else {
component.path = currentPath + "/" + component.id;
}
component.full_path = component.path;
// 使用预加载的模型获取文件大小
try {
if (preloadedModel) {
component.file_size = GetModelFileSize(preloadedModel);
// 对于装配体直接计算子组件数量避免重复API调用
if (component.type == "assembly" && preloadedModel->GetType() == pfcMDL_ASSEMBLY) {
wfcWAssembly_ptr assembly = wfcWAssembly::cast(preloadedModel);
if (assembly) {
try {
pfcFeatures_ptr childFeatures = assembly->ListFeaturesByType(xfalse, pfcFEATTYPE_COMPONENT);
if (childFeatures) {
component.children_count = childFeatures->getarraysize();
}
} catch (...) {
component.children_count = 0;
}
}
}
} else {
component.file_size = "0.0MB";
}
} catch (...) {
component.file_size = "0.0MB";
}
}
} catch (...) {
// 使用默认值
component.id = "unknown_component_" + std::to_string(level);
component.name = "Unknown Component";
component.type = "part";
component.path = currentPath + "/" + component.id;
component.full_path = component.path;
}
return component;
}
pfcModel_ptr CreoManager::LoadComponentModel(pfcComponentFeat_ptr compFeat) {
try {
auto modelDescr = compFeat->GetModelDescr();
if (!modelDescr) return nullptr;
SessionInfo sessionInfo = GetSessionInfo();
if (!sessionInfo.is_valid) return nullptr;
// 尝试从会话中获取已加载的模型
try {
return sessionInfo.session->GetModelFromDescr(modelDescr);
} catch (pfcXToolkitError&) {
// 模型未加载返回nullptr
return nullptr;
}
} catch (...) {
return nullptr;
}
}
// 层级删除功能实现
CreoManager::HierarchyDeleteResult CreoManager::DeleteHierarchyComponents(const std::string& project_name, int target_level) {
HierarchyDeleteResult result;
result.target_level = target_level;
SessionInfo sessionInfo = GetSessionInfo();
if (!sessionInfo.is_valid) {
result.error_message = "Creo session not available";
return result;
}
try {
pfcModel_ptr current_model = sessionInfo.session->GetCurrentModel();
if (!current_model) {
result.error_message = "No current model loaded";
return result;
}
// 检查是否为装配体
if (current_model->GetType() != pfcMDL_ASSEMBLY) {
result.error_message = "Current model is not an assembly";
return result;
}
// 转换为装配体
wfcWAssembly_ptr assembly = wfcWAssembly::cast(current_model);
if (!assembly) {
result.error_message = "Failed to cast model to assembly";
return result;
}
// target_level=2表示保留2层删除第3层的组件
// 层级映射target_level=2 -> 删除level_3 -> currentLevel=2
int deleteLevel = target_level - 1;
// 收集删除统计信息
std::map<int, std::vector<std::string>> componentsToDeleteByLevel;
int total_deleted = 0;
int successful_count = 0;
int failed_count = 0;
// 递归遍历到指定层级直接删除
std::function<void(wfcWAssembly_ptr, int)> deleteAtLevel = [&](wfcWAssembly_ptr currentAssembly, int currentLevel) {
if (!currentAssembly || currentLevel > deleteLevel) return;
try {
pfcFeatures_ptr features = currentAssembly->ListFeaturesByType(xfalse, pfcFEATTYPE_COMPONENT);
// 正常执行,无需调试输出
if (features) {
if (currentLevel == deleteLevel) {
// 在目标层级:获取所有组件并删除
xintsequence_ptr featIds = xintsequence::create();
std::vector<std::string> levelComponents;
for (int i = 0; i < features->getarraysize(); i++) {
pfcFeature_ptr feature = features->get(i);
pfcComponentFeat_ptr compFeat = pfcComponentFeat::cast(feature);
if (compFeat) {
// 记录组件信息用于响应
try {
auto modelDescr = compFeat->GetModelDescr();
if (modelDescr) {
xstring filename_xstr = modelDescr->GetFileName();
std::string filename = XStringToString(filename_xstr);
levelComponents.push_back(filename);
total_deleted++;
}
} catch (...) {
// 忽略获取文件名失败的组件
}
// 添加到删除列表
int featId = feature->GetId();
featIds->append(featId);
}
}
// 执行删除
if (featIds->getarraysize() > 0) {
try {
wfcWSolid_ptr wsolid = wfcWSolid::cast(currentAssembly);
if (wsolid) {
// 使用SuppressFeatures方法更安全地"删除"组件
wfcFeatSuppressOrDeleteOptions_ptr options = wfcFeatSuppressOrDeleteOptions::create();
options->append(wfcFEAT_SUPP_OR_DEL_NO_OPTS);
// 创建重生成指令,允许失败
wfcWRegenInstructions_ptr regenInstr = wfcWRegenInstructions::Create();
// 执行抑制操作(更安全,不会破坏引用关系)
wsolid->SuppressFeatures(featIds, options, regenInstr);
// 手动重生成模型
try {
currentAssembly->Regenerate(nullptr);
} catch (...) {
// 重生成失败不影响抑制操作
}
successful_count += featIds->getarraysize();
// 记录成功抑制的组件 - 累积而不是覆盖
if (componentsToDeleteByLevel.find(deleteLevel + 1) == componentsToDeleteByLevel.end()) {
componentsToDeleteByLevel[deleteLevel + 1] = std::vector<std::string>();
}
componentsToDeleteByLevel[deleteLevel + 1].insert(
componentsToDeleteByLevel[deleteLevel + 1].end(),
levelComponents.begin(),
levelComponents.end()
);
} else {
failed_count += featIds->getarraysize();
}
} catch (...) {
failed_count += featIds->getarraysize();
}
}
} else if (currentLevel < deleteLevel) {
// 还没到目标层级:只对装配体组件继续递归
for (int i = 0; i < features->getarraysize(); i++) {
pfcFeature_ptr feature = features->get(i);
pfcComponentFeat_ptr compFeat = pfcComponentFeat::cast(feature);
if (compFeat) {
auto modelDescr = compFeat->GetModelDescr();
if (modelDescr && modelDescr->GetType() == pfcMDL_ASSEMBLY) {
pfcModel_ptr childModel = LoadComponentModel(compFeat);
if (childModel && childModel->GetType() == pfcMDL_ASSEMBLY) {
wfcWAssembly_ptr childAssembly = wfcWAssembly::cast(childModel);
if (childAssembly) {
deleteAtLevel(childAssembly, currentLevel + 1);
}
}
}
}
}
}
}
} catch (...) {
// 忽略单个装配体的错误
}
};
// 从根装配体开始删除层级0
deleteAtLevel(assembly, 0);
result.deleted_components = componentsToDeleteByLevel;
result.total_deleted = total_deleted;
result.original_levels = 0; // 临时设置,避免异常值
// 删除完成后重新生成模型
if (successful_count > 0) {
try {
assembly->Regenerate(nullptr);
} catch (...) {
// 重新生成失败不影响删除结果
}
}
result.successful = successful_count;
result.failed = failed_count;
result.final_levels = target_level + 1; // 删除后的层级数
if (failed_count == 0) {
result.success = true;
result.message = "All components suppressed successfully (safer than deletion)";
} else {
result.success = (successful_count > 0);
result.message = "Suppression completed with " + std::to_string(failed_count) + " failures";
}
} catch (const std::exception& e) {
result.error_message = "Exception during suppression: " + std::string(e.what());
} catch (...) {
result.error_message = "Unknown error during suppression";
}
return result;
}
// Multi-directional extreme value projection shell analysis implementation
CreoManager::ShellAnalysisResult CreoManager::AnalyzeShellFeaturesEnhanced(const ShellAnalysisRequest& request) {
ShellAnalysisResult result;
try {
// Get session
SessionInfo sessionInfo = GetSessionInfo();
if (!sessionInfo.is_valid) {
result.error_message = "Cannot connect to Creo session";
return result;
}
// Get current model
pfcModel_ptr currentModel = sessionInfo.session->GetCurrentModel();
if (!currentModel) {
result.error_message = "No model is open in Creo";
return result;
}
// Model type detection
pfcModelType modelType = currentModel->GetType();
bool is_assembly = (modelType == pfcModelType::pfcMDL_ASSEMBLY);
// Set analysis parameters
result.analysis_parameters.preserve_external_surfaces = request.preserve_external_surfaces;
result.analysis_parameters.min_wall_thickness = request.min_wall_thickness;
result.analysis_parameters.confidence_threshold = request.confidence_threshold;
result.analysis_parameters.assembly_analysis = is_assembly;
if (!is_assembly) {
result.error_message = "Multi-directional projection analysis is designed for assembly models only";
return result;
}
// Cast to assembly
pfcAssembly_ptr assembly = pfcAssembly::cast(currentModel);
if (!assembly) {
result.error_message = "Cannot cast model to assembly";
return result;
}
// Execute multi-directional extreme value projection algorithm (now returns complete analysis data)
ProjectionAnalysisData analysisData = PerformMultiDirectionalProjectionAnalysis(assembly);
const std::unordered_set<int>& outerComponentIds = analysisData.outerComponentIds;
const std::unordered_map<int, int>& visibilityVotes = analysisData.visibilityVotes;
const std::vector<ComponentItem>& allComponents = analysisData.components;
const AABB& globalAABB = analysisData.globalAABB;
const int numDirections = 96; // Keep this for visibility ratio calculations
// Build component AABB mapping for quick lookup
std::unordered_map<int, AABB> componentAABBs;
std::unordered_map<int, std::string> componentNames; // Map feature ID to name
for (const ComponentItem& comp : allComponents) {
componentAABBs[comp.featureId] = comp.worldAABB;
componentNames[comp.featureId] = comp.name;
}
// Get all components using the same method as CollectAllComponents for ID consistency
wfcWAssembly_ptr wAssembly = wfcWAssembly::cast(assembly);
if (!wAssembly) {
result.error_message = "Cannot cast assembly to wfcWAssembly";
return result;
}
wfcWComponentPaths_ptr componentPaths = wAssembly->ListDisplayedComponents();
if (!componentPaths) {
result.error_message = "Cannot get component paths from assembly";
return result;
}
int total_components = componentPaths->getarraysize();
result.total_features_analyzed = total_components;
// No need for feature ID map - we'll use component IDs directly from paths
// Build analysis result from projection analysis
for (int i = 0; i < total_components; i++) {
try {
wfcWComponentPath_ptr wPath = componentPaths->get(i);
if (!wPath) continue;
// Get component solid and model (same as in CollectAllComponents)
pfcSolid_ptr compSolid = wPath->GetLeaf();
if (!compSolid) continue;
pfcModel_ptr compModel = pfcModel::cast(compSolid);
if (!compModel) continue;
// Get component name
std::string comp_name;
try {
xstring nameXStr = compModel->GetFileName();
comp_name = XStringToString(nameXStr);
if (comp_name.empty()) {
comp_name = "COMPONENT_" + std::to_string(i + 1);
}
} catch (...) {
comp_name = "COMPONENT_" + std::to_string(i + 1);
}
// Get stable feature ID from component path - use the leaf component ID
int stableFeatureId = -1;
xintsequence_ptr componentIds = wPath->GetComponentIds();
if (componentIds && componentIds->getarraysize() > 0) {
// Use the last ID in the path which represents the leaf component
stableFeatureId = componentIds->get(componentIds->getarraysize() - 1);
} else {
// Should not happen, but use index as last resort
stableFeatureId = i;
}
// Create analysis item
ShellAnalysisItem item;
item.name = comp_name;
item.type = "COMPONENT";
item.feature_id = stableFeatureId; // Use stable feature ID
// Calculate visibility ratio for this component
double visibilityRatio = 0.0;
auto votesIter = visibilityVotes.find(item.feature_id);
if (votesIter != visibilityVotes.end()) {
visibilityRatio = (double)votesIter->second / numDirections;
}
// Determine confidence based on visibility ratio
if (visibilityRatio >= 0.25) {
// Highly visible component - clearly on outer surface
item.confidence = 0.1; // Very low deletion confidence
item.recommendation = "KEEP";
item.reason = "Component highly visible from multiple directions (visibility: " +
std::to_string((int)(visibilityRatio * 100)) + "%)";
result.shell_features_count++;
} else if (visibilityRatio >= 0.08) {
// Partially visible component - likely on outer surface or important structure
item.confidence = 0.4; // Medium deletion confidence
item.recommendation = "REVIEW";
item.reason = "Component partially visible (visibility: " +
std::to_string((int)(visibilityRatio * 100)) + "%)";
result.shell_features_count++;
} else {
// Internal component - mostly not visible
item.confidence = 0.85; // High deletion confidence
item.recommendation = "DELETE";
item.reason = "Internal component with minimal visibility (visibility: " +
std::to_string((int)(visibilityRatio * 100)) + "%)";
result.internal_features_count++;
}
// Check if it was identified as outer component by the main algorithm
bool is_outer_component = (outerComponentIds.find(item.feature_id) != outerComponentIds.end());
// Apply rule-based adjustments
// Get component's AABB for geometric rules
AABB compAABB;
auto aabbIter = componentAABBs.find(item.feature_id);
if (aabbIter != componentAABBs.end()) {
compAABB = aabbIter->second;
// Check geometric rules
if (ComponentClassifier::IsLikelyInternal(compAABB, globalAABB)) {
item.confidence = std::min(0.95, item.confidence + 0.2); // Increase deletion confidence
item.reason += " [Geometry: Deep internal]";
}
}
// Apply naming pattern rules - use unified component name
std::string unifiedName = comp_name;
auto nameIter = componentNames.find(item.feature_id);
if (nameIter != componentNames.end()) {
unifiedName = nameIter->second; // Use name from ComponentItem for consistency
}
if (ComponentClassifier::IsFastener(unifiedName)) {
item.confidence = std::min(0.95, item.confidence + 0.3); // Fasteners are typically deletable
item.reason += " [Pattern: Fastener]";
if (item.recommendation == "KEEP") {
item.recommendation = "REVIEW"; // Reconsider visible fasteners
}
} else if (ComponentClassifier::IsInternalStructure(unifiedName)) {
item.confidence = std::min(0.90, item.confidence + 0.25); // Internal structures likely deletable
item.reason += " [Pattern: Internal structure]";
} else if (ComponentClassifier::IsExternalShell(unifiedName)) {
item.confidence = std::max(0.1, item.confidence - 0.5); // External shells should be preserved
item.reason += " [Pattern: External shell]";
if (item.recommendation == "DELETE") {
item.recommendation = "REVIEW"; // Reconsider deletion of shells
}
}
// Apply user preferences
if (request.preserve_external_surfaces && is_outer_component) {
item.confidence = 0.0; // Force keep
}
// Check confidence threshold
if (item.confidence >= request.confidence_threshold) {
item.is_deletable = true;
result.total_deletable++;
}
result.features.push_back(item);
} catch (...) {
// Skip problematic components
continue;
}
}
// Sort results by confidence (highest first)
std::sort(result.features.begin(), result.features.end(),
[](const ShellAnalysisItem& a, const ShellAnalysisItem& b) -> bool {
return a.confidence > b.confidence;
});
// Convert features to categorized deletion lists
for (const auto& item : result.features) {
FeatureDeletion deletion;
deletion.id = item.feature_id;
deletion.name = item.name;
deletion.type = item.type;
deletion.reason = item.reason;
deletion.confidence = item.confidence;
deletion.volume_reduction = 0.0; // Not calculated in projection analysis
deletion.part_file = ""; // Component name is already in 'name'
deletion.part_path = ""; // Not available in current analysis
deletion.component_type = "COMPONENT";
// Set vote count from projection analysis
auto votesIter = visibilityVotes.find(item.feature_id);
deletion.vote_count = (votesIter != visibilityVotes.end()) ? votesIter->second : 0;
if (item.confidence >= 0.8) {
// Safe deletion - high confidence internal components
result.safe_deletions.push_back(deletion);
} else if (item.confidence >= 0.5) {
// Suggested deletion - medium confidence components
result.suggested_deletions.push_back(deletion);
} else {
// Preserve - low confidence or outer surface components
result.preserve_list.push_back(deletion);
}
}
// Update statistics fields
result.analysis_parameters.total_features = result.total_features_analyzed;
result.analysis_parameters.deletable_features = result.safe_deletions.size() + result.suggested_deletions.size();
result.analysis_parameters.preserved_features = result.preserve_list.size();
result.analysis_parameters.surface_count = result.total_features_analyzed; // All components analyzed
result.analysis_parameters.shell_surfaces = result.shell_features_count; // Outer surface components
result.analysis_parameters.internal_surfaces = result.internal_features_count; // Internal components
// Calculate estimated reduction (simplified for projection analysis)
if (result.total_features_analyzed > 0) {
double safe_reduction_pct = (double)result.safe_deletions.size() / result.total_features_analyzed * 100.0;
double suggested_reduction_pct = (double)result.suggested_deletions.size() / result.total_features_analyzed * 100.0;
std::ostringstream volume_str, filesize_str, performance_str;
volume_str << std::fixed << std::setprecision(1) << (safe_reduction_pct + suggested_reduction_pct * 0.5) << "%";
filesize_str << std::fixed << std::setprecision(1) << (safe_reduction_pct * 0.7 + suggested_reduction_pct * 0.3) << "%";
performance_str << std::fixed << std::setprecision(0) << (safe_reduction_pct * 1.5 + suggested_reduction_pct * 0.8) << "%";
result.estimated_reduction.volume_reduction = volume_str.str();
result.estimated_reduction.file_size_reduction = filesize_str.str();
result.estimated_reduction.performance_improvement = performance_str.str();
} else {
result.estimated_reduction.volume_reduction = "0%";
result.estimated_reduction.file_size_reduction = "0%";
result.estimated_reduction.performance_improvement = "0%";
}
// Calculate statistics
result.deletion_percentage = (result.total_features_analyzed > 0) ?
(double(result.total_deletable) / result.total_features_analyzed * 100.0) : 0.0;
result.success = true;
result.model_name = XStringToString(currentModel->GetFullName());
} catch (const std::exception& e) {
result.error_message = "Exception: " + std::string(e.what());
} catch (...) {
result.error_message = "Unknown error during multi-directional projection analysis";
}
return result;
}
// Shell Analysis implementation using real OTK geometry APIs
CreoManager::ShellAnalysisResult CreoManager::AnalyzeShellFeatures(const ShellAnalysisRequest& request) {
return AnalyzeShellFeaturesEnhanced(request);
}
// Geometry analysis: determine if feature touches model boundary
bool CreoManager::AnalyzeFeatureGeometry(pfcFeature_ptr feature, pfcOutline3D_ptr globalOutline, double tolerance) {
if (!feature || !globalOutline) {
return false; // Cannot analyze, assume not touching boundary
}
try {
// Get global bounding box
pfcPoint3D_ptr globalMin = globalOutline->get(0);
pfcPoint3D_ptr globalMax = globalOutline->get(1);
// Since OTK lacks direct feature bbox API, use improved heuristics
// This is enhanced semantic analysis based on feature types and relationships
pfcFeatureType feat_type = feature->GetFeatType();
// === Improved feature boundary analysis ===
// 1. Features that build outer shape typically touch boundary
if (feat_type == pfcFeatureType::pfcFEATTYPE_PROTRUSION ||
feat_type == pfcFeatureType::pfcFEATTYPE_SHELL ||
feat_type == pfcFeatureType::pfcFEATTYPE_DOME ||
feat_type == pfcFeatureType::pfcFEATTYPE_TORUS) {
return true; // These features define model shape
}
// 2. Base feature typically on boundary
if (feat_type == pfcFeatureType::pfcFEATTYPE_FIRST) {
return true; // Base feature on boundary
}
// 3. Machining features - need careful analysis
if (feat_type == pfcFeatureType::pfcFEATTYPE_CUT ||
feat_type == pfcFeatureType::pfcFEATTYPE_HOLE) {
// CUT and HOLE features can be external or internal
// Without geometry API, conservatively assume internal
return false; // Typically internal features
}
// 4. ROUND and CHAMFER - can be anywhere
if (feat_type == pfcFeatureType::pfcFEATTYPE_ROUND ||
feat_type == pfcFeatureType::pfcFEATTYPE_CHAMFER) {
// Cannot assume all rounds/chamfers are on boundary
// Many internal edges also have rounds/chamfers
// Need parent feature analysis for accurate determination
try {
// Try to check parent features for context
pfcFeatures_ptr parents = feature->ListParents();
if (parents && parents->getarraysize() > 0) {
// If parent is internal, this is likely internal too
for (int i = 0; i < parents->getarraysize(); i++) {
pfcFeature_ptr parent = parents->get(i);
if (parent) {
pfcFeatureType parent_type = parent->GetFeatType();
if (parent_type == pfcFeatureType::pfcFEATTYPE_CUT ||
parent_type == pfcFeatureType::pfcFEATTYPE_HOLE) {
return false; // Round/chamfer on internal feature
}
}
}
}
} catch (...) {
// Parent analysis failed, use conservative approach
}
// Without clear internal parent, conservatively assume boundary
// to avoid deleting important external features
return true;
}
// 5. RIB and DRAFT features
if (feat_type == pfcFeatureType::pfcFEATTYPE_RIB ||
feat_type == pfcFeatureType::pfcFEATTYPE_DRAFT) {
return false; // Typically internal strengthening features
}
// 6. Datum features do not affect geometry
if (feat_type == pfcFeatureType::pfcFEATTYPE_DATUM_PLANE ||
feat_type == pfcFeatureType::pfcFEATTYPE_DATUM_AXIS ||
feat_type == pfcFeatureType::pfcFEATTYPE_DATUM_POINT ||
feat_type == pfcFeatureType::pfcFEATTYPE_COORD_SYS) {
return false; // Datum features don't affect boundary
}
// 7. Component features in assembly
if (feat_type == pfcFeatureType::pfcFEATTYPE_COMPONENT) {
// Component position analysis would require transform matrices
// For now, use conservative approach
// TODO: Implement component bbox vs assembly bbox comparison
return false; // Assume internal by default, let hierarchy analysis decide
}
// 8. Pattern features
if (feat_type == pfcFeatureType::pfcFEATTYPE_PATTERN) {
// Pattern boundary depends on leader feature
try {
// Cast to pattern type - pfcFeaturePattern should be in pfcFeature.h
pfcFeaturePattern_ptr pattern = pfcFeaturePattern::cast(feature);
if (pattern) {
pfcFeature_ptr leader = pattern->GetPatternLeader();
if (leader) {
// Recursively check leader feature
return AnalyzeFeatureGeometry(leader, globalOutline, tolerance);
}
}
} catch (...) {
// Pattern analysis failed
}
return false; // Conservative: assume internal
}
// 9. Default for unknown features
// Use conservative approach to avoid deleting important features
return false; // Changed from true to false for safety
} catch (...) {
// Analysis failed, use conservative strategy
return true; // Assume touching boundary to avoid incorrect deletion
}
}
// === Smart Boundary Detection Algorithm ===
// 1. Get optimal tolerance based on assembly size
double CreoManager::GetOptimalTolerance(pfcOutline3D_ptr assembly_bbox) {
try {
if (!assembly_bbox) return 0.1;
pfcPoint3D_ptr minPt = assembly_bbox->get(0);
pfcPoint3D_ptr maxPt = assembly_bbox->get(1);
// Calculate assembly diagonal length
double diagonal = sqrt(
pow(maxPt->get(0) - minPt->get(0), 2) +
pow(maxPt->get(1) - minPt->get(1), 2) +
pow(maxPt->get(2) - minPt->get(2), 2)
);
// Tolerance is 1% of diagonal, with min/max limits
double tolerance = diagonal * 0.01;
return std::max(0.1, std::min(tolerance, 50.0));
} catch (...) {
return 0.1; // Default fallback
}
}
// 2. Calculate boundary overlap percentage
double CreoManager::CalculateBoundaryOverlap(pfcOutline3D_ptr comp_bbox, pfcOutline3D_ptr assembly_bbox, double tolerance) {
try {
if (!comp_bbox || !assembly_bbox) return 0.0;
pfcPoint3D_ptr comp_min = comp_bbox->get(0);
pfcPoint3D_ptr comp_max = comp_bbox->get(1);
pfcPoint3D_ptr asm_min = assembly_bbox->get(0);
pfcPoint3D_ptr asm_max = assembly_bbox->get(1);
double overlap_count = 0.0;
double total_faces = 6.0; // 6 faces of bounding box
// Check each face for boundary overlap
// X-min face
if (abs(comp_min->get(0) - asm_min->get(0)) <= tolerance) overlap_count += 1.0;
// X-max face
if (abs(comp_max->get(0) - asm_max->get(0)) <= tolerance) overlap_count += 1.0;
// Y-min face
if (abs(comp_min->get(1) - asm_min->get(1)) <= tolerance) overlap_count += 1.0;
// Y-max face
if (abs(comp_max->get(1) - asm_max->get(1)) <= tolerance) overlap_count += 1.0;
// Z-min face
if (abs(comp_min->get(2) - asm_min->get(2)) <= tolerance) overlap_count += 1.0;
// Z-max face
if (abs(comp_max->get(2) - asm_max->get(2)) <= tolerance) overlap_count += 1.0;
return overlap_count / total_faces; // Return overlap percentage (0.0 to 1.0)
} catch (...) {
return 0.0; // Safe fallback
}
}
// 3. Check if component is on assembly boundary
bool CreoManager::IsOnAssemblyBoundary(pfcFeature_ptr component, pfcOutline3D_ptr assembly_bbox, double tolerance) {
try {
if (!component || !assembly_bbox) return true; // Conservative: assume on boundary
pfcComponentFeat_ptr compFeat = pfcComponentFeat::cast(component);
if (!compFeat) return true;
// Get component model
pfcModelDescriptor_ptr modelDesc = compFeat->GetModelDescr();
if (!modelDesc) return true;
pfcSession_ptr session = pfcGetCurrentSession();
if (!session) return true;
pfcModel_ptr componentModel = session->GetModelFromDescr(modelDesc);
if (!componentModel || componentModel->GetType() != pfcModelType::pfcMDL_PART) {
return true; // Assemblies are considered boundary components
}
pfcSolid_ptr componentSolid = pfcSolid::cast(componentModel);
if (!componentSolid) return true;
pfcOutline3D_ptr comp_bbox = componentSolid->EvalOutline(nullptr);
if (!comp_bbox) return true;
// Calculate boundary overlap
double overlap = CalculateBoundaryOverlap(comp_bbox, assembly_bbox, tolerance);
// Component is on boundary if it overlaps with any boundary face
// Threshold: >= 16.7% (1 out of 6 faces)
return overlap >= 0.167;
} catch (...) {
return true; // Conservative: assume on boundary to avoid deletion
}
}
// Enhanced geometric boundary detection for part features
bool CreoManager::AnalyzeFeatureGeometryEnhanced(
pfcFeature_ptr feature,
pfcSolid_ptr solid,
pfcOutline3D_ptr globalOutline,
double tolerance) {
if (!feature || !solid || !globalOutline) {
return false; // Conservative: assume internal
}
try {
pfcFeatureType feat_type = feature->GetFeatType();
// Step 1: Quick type-based filtering for non-geometric features
if (feat_type == pfcFeatureType::pfcFEATTYPE_DATUM_PLANE ||
feat_type == pfcFeatureType::pfcFEATTYPE_DATUM_AXIS ||
feat_type == pfcFeatureType::pfcFEATTYPE_DATUM_POINT ||
feat_type == pfcFeatureType::pfcFEATTYPE_COORD_SYS) {
return false; // Datum features don't affect geometry
}
// Step 2: Get surfaces affected by this feature
std::vector<pfcSurface_ptr> affected_surfaces = GetFeatureAffectedSurfaces(feature, solid);
if (affected_surfaces.empty()) {
// No surfaces found - use fallback type-based analysis
if (feat_type == pfcFeatureType::pfcFEATTYPE_PROTRUSION ||
feat_type == pfcFeatureType::pfcFEATTYPE_SHELL ||
feat_type == pfcFeatureType::pfcFEATTYPE_FIRST) {
return true; // Shape-building features likely on boundary
}
return false; // Unknown features assumed internal
}
// Step 3: Check if any affected surface is on the model boundary
int boundary_surface_count = 0;
for (pfcSurface_ptr surface : affected_surfaces) {
if (IsSurfaceOnBoundary(surface, solid, globalOutline, tolerance)) {
boundary_surface_count++;
}
}
// Step 4: Determine boundary status
double boundary_ratio = (double)boundary_surface_count / affected_surfaces.size();
// Feature touches boundary if >30% of its surfaces are on boundary
return boundary_ratio > 0.3;
} catch (...) {
// Analysis failed - use conservative fallback
pfcFeatureType feat_type;
try {
feat_type = feature->GetFeatType();
if (feat_type == pfcFeatureType::pfcFEATTYPE_CUT ||
feat_type == pfcFeatureType::pfcFEATTYPE_HOLE) {
return false; // Cuts/holes typically internal
}
} catch (...) {
// Cannot get feature type
}
return true; // Conservative: assume boundary to avoid deletion
}
}
// Get surfaces affected by a feature
std::vector<pfcSurface_ptr> CreoManager::GetFeatureAffectedSurfaces(pfcFeature_ptr feature, pfcSolid_ptr solid) {
std::vector<pfcSurface_ptr> surfaces;
if (!feature || !solid) {
return surfaces;
}
try {
// Try to get feature surfaces using OTK API
// Note: This is a simplified implementation
// Full implementation would require feature-specific surface extraction
pfcFeatureType feat_type = feature->GetFeatType();
// For certain feature types, we can get related surfaces
if (feat_type == pfcFeatureType::pfcFEATTYPE_PROTRUSION ||
feat_type == pfcFeatureType::pfcFEATTYPE_CUT ||
feat_type == pfcFeatureType::pfcFEATTYPE_HOLE) {
// Get surfaces affected by this feature using correct OTK API
try {
pfcModelItems_ptr model_items = solid->ListItems(pfcITEM_SURFACE);
if (model_items) {
int count = model_items->getarraysize();
// Feature affects surfaces based on creation order and type
int start_idx = 0;
int max_surfaces = 5; // Limit to avoid performance issues
// For newer features, check last 20% of surfaces
if (feat_type == pfcFeatureType::pfcFEATTYPE_CUT ||
feat_type == pfcFeatureType::pfcFEATTYPE_HOLE ||
feat_type == pfcFeatureType::pfcFEATTYPE_ROUND ||
feat_type == pfcFeatureType::pfcFEATTYPE_CHAMFER) {
start_idx = std::max(0, (int)(count * 0.8));
} else if (feat_type == pfcFeatureType::pfcFEATTYPE_PROTRUSION) {
// Protrusions affect newer surfaces
start_idx = std::max(0, (int)(count * 0.6));
} else {
// Other features, sample from middle
start_idx = std::max(0, (int)(count * 0.4));
}
for (int i = start_idx; i < count && i < start_idx + max_surfaces; i++) {
try {
pfcModelItem_ptr item = model_items->get(i);
pfcSurface_ptr surface = pfcSurface::cast(item);
if (surface) {
surfaces.push_back(surface);
}
} catch (...) {
continue;
}
}
}
} catch (...) {
// Surface enumeration failed - return empty list for fallback
}
}
} catch (...) {
// Feature analysis failed
}
return surfaces;
}
// Check if a surface is on the model boundary using real geometry APIs
bool CreoManager::IsSurfaceOnBoundary(pfcSurface_ptr surface, pfcSolid_ptr solid, pfcOutline3D_ptr globalOutline, double tolerance) {
if (!surface) {
return false;
}
try {
// Step 1: Check if surface is visible (external surface indicator)
if (!surface->GetIsVisible()) {
return false; // Internal surfaces are not visible
}
// Step 2: Analyze surface contours to determine if it's truly external
pfcContours_ptr contours = surface->ListContours();
if (!contours || contours->getarraysize() == 0) {
// No contours available, use fallback bounding box check
return CheckSurfaceBoundaryByBounds(surface, globalOutline, tolerance);
}
// Step 3: Check for external contours (non-internal traversal)
bool has_external_contour = false;
for (int i = 0; i < contours->getarraysize(); i++) {
pfcContour_ptr contour = contours->get(i);
if (contour && !contour->GetInternalTraversal()) {
has_external_contour = true;
break; // Found external contour, surface is on boundary
}
}
// Step 4: Additional validation using boundary edges if contours exist
if (has_external_contour) {
// Verify by checking if any edges are boundary edges
for (int i = 0; i < contours->getarraysize(); i++) {
pfcContour_ptr contour = contours->get(i);
if (contour) {
pfcEdges_ptr edges = contour->ListElements();
if (edges) {
for (int j = 0; j < edges->getarraysize(); j++) {
pfcEdge_ptr edge = edges->get(j);
if (edge && edge->GetSurface2() == nullptr) {
return true; // Found boundary edge, confirmed external surface
}
}
}
}
}
}
return has_external_contour;
} catch (...) {
// Real geometry analysis failed, use conservative fallback
return CheckSurfaceBoundaryByBounds(surface, globalOutline, tolerance);
}
}
// Fallback boundary check using bounding box analysis
bool CreoManager::CheckSurfaceBoundaryByBounds(pfcSurface_ptr surface, pfcOutline3D_ptr globalOutline, double tolerance) {
if (!surface || !globalOutline) {
return false;
}
try {
pfcOutline3D_ptr surf_outline = surface->GetXYZExtents();
if (!surf_outline) {
return false;
}
pfcPoint3D_ptr global_min = globalOutline->get(0);
pfcPoint3D_ptr global_max = globalOutline->get(1);
pfcPoint3D_ptr surf_min = surf_outline->get(0);
pfcPoint3D_ptr surf_max = surf_outline->get(1);
// Check if surface touches any face of the global bounding box
return (abs(surf_min->get(0) - global_min->get(0)) <= tolerance ||
abs(surf_max->get(0) - global_max->get(0)) <= tolerance ||
abs(surf_min->get(1) - global_min->get(1)) <= tolerance ||
abs(surf_max->get(1) - global_max->get(1)) <= tolerance ||
abs(surf_min->get(2) - global_min->get(2)) <= tolerance ||
abs(surf_max->get(2) - global_max->get(2)) <= tolerance);
} catch (...) {
return false;
}
}
// Calculate distance from feature to nearest external surface
double CreoManager::CalculateDistanceToExternalSurface(pfcFeature_ptr feature, pfcSolid_ptr solid) {
if (!feature || !solid) {
return -1.0; // Unknown distance
}
try {
// This is a simplified implementation
// Full implementation would require:
// 1. Get feature geometry center
// 2. Cast rays in multiple directions
// 3. Find intersection with external surfaces
// 4. Return minimum distance
pfcFeatureType feat_type = feature->GetFeatType();
// Estimate based on feature type and model size
pfcOutline3D_ptr outline = solid->EvalOutline();
if (outline) {
pfcPoint3D_ptr min_pt = outline->get(0);
pfcPoint3D_ptr max_pt = outline->get(1);
double model_size = sqrt(
pow(max_pt->get(0) - min_pt->get(0), 2) +
pow(max_pt->get(1) - min_pt->get(1), 2) +
pow(max_pt->get(2) - min_pt->get(2), 2)
);
// Heuristic distance estimation
if (feat_type == pfcFeatureType::pfcFEATTYPE_CUT ||
feat_type == pfcFeatureType::pfcFEATTYPE_HOLE) {
return model_size * 0.1; // Assume cuts are somewhat internal
} else if (feat_type == pfcFeatureType::pfcFEATTYPE_PROTRUSION) {
return 0.0; // Protrusions typically on surface
} else {
return model_size * 0.05; // Default internal distance
}
}
return 10.0; // Default fallback distance
} catch (...) {
return -1.0; // Analysis failed
}
}
// Enhanced assembly component occlusion analysis
bool CreoManager::IsComponentOccludedByOthers(
pfcFeature_ptr component,
pfcOutline3D_ptr assembly_bbox,
const std::vector<std::pair<pfcFeature_ptr, std::string>>& all_components,
double tolerance) {
if (!component || !assembly_bbox || all_components.empty()) {
return false; // Cannot analyze
}
try {
// Get the target component's bounding box
pfcComponentFeat_ptr target_comp = pfcComponentFeat::cast(component);
if (!target_comp) {
return false;
}
pfcModelDescriptor_ptr target_desc = target_comp->GetModelDescr();
if (!target_desc) {
return false;
}
pfcSession_ptr session = pfcGetCurrentSession();
if (!session) {
return false;
}
pfcModel_ptr target_model = session->GetModelFromDescr(target_desc);
if (!target_model || target_model->GetType() != pfcModelType::pfcMDL_PART) {
return false; // Cannot analyze assemblies or invalid models
}
pfcSolid_ptr target_solid = pfcSolid::cast(target_model);
if (!target_solid) {
return false;
}
pfcOutline3D_ptr target_bbox = target_solid->EvalOutline();
if (!target_bbox) {
return false;
}
// Check if this component is occluded by others
int occluding_components = 0;
int total_checked = 0;
for (const auto& other_comp_pair : all_components) {
pfcFeature_ptr other_comp = other_comp_pair.first;
// Skip self
if (other_comp == component) {
continue;
}
total_checked++;
// Calculate occlusion ratio
double occlusion = CalculateOcclusionRatio(component, other_comp);
if (occlusion > 0.3) { // 30% occlusion threshold
occluding_components++;
}
}
// Component is considered occluded if it's hidden by multiple other components
// or significantly occluded by at least one large component
if (total_checked > 0) {
double occlusion_ratio = (double)occluding_components / total_checked;
return occlusion_ratio > 0.25; // Occluded if 25% of other components hide it
}
return false;
} catch (...) {
return false; // Analysis failed, assume not occluded
}
}
// Calculate how much one component occludes another
double CreoManager::CalculateOcclusionRatio(pfcFeature_ptr target, pfcFeature_ptr occluder) {
if (!target || !occluder) {
return 0.0;
}
try {
// Get both components as ComponentFeat
pfcComponentFeat_ptr target_comp = pfcComponentFeat::cast(target);
pfcComponentFeat_ptr occluder_comp = pfcComponentFeat::cast(occluder);
if (!target_comp || !occluder_comp) {
return 0.0;
}
// Get model descriptors
pfcModelDescriptor_ptr target_desc = target_comp->GetModelDescr();
pfcModelDescriptor_ptr occluder_desc = occluder_comp->GetModelDescr();
if (!target_desc || !occluder_desc) {
return 0.0;
}
pfcSession_ptr session = pfcGetCurrentSession();
if (!session) {
return 0.0;
}
// Get models
pfcModel_ptr target_model = session->GetModelFromDescr(target_desc);
pfcModel_ptr occluder_model = session->GetModelFromDescr(occluder_desc);
if (!target_model || !occluder_model ||
target_model->GetType() != pfcModelType::pfcMDL_PART ||
occluder_model->GetType() != pfcModelType::pfcMDL_PART) {
return 0.0;
}
// Get solids
pfcSolid_ptr target_solid = pfcSolid::cast(target_model);
pfcSolid_ptr occluder_solid = pfcSolid::cast(occluder_model);
if (!target_solid || !occluder_solid) {
return 0.0;
}
// Get bounding boxes
pfcOutline3D_ptr target_bbox = target_solid->EvalOutline();
pfcOutline3D_ptr occluder_bbox = occluder_solid->EvalOutline();
if (!target_bbox || !occluder_bbox) {
return 0.0;
}
// Calculate bounding box overlap
pfcPoint3D_ptr target_min = target_bbox->get(0);
pfcPoint3D_ptr target_max = target_bbox->get(1);
pfcPoint3D_ptr occluder_min = occluder_bbox->get(0);
pfcPoint3D_ptr occluder_max = occluder_bbox->get(1);
// Calculate overlap volume
double overlap_x = std::max(0.0, std::min(target_max->get(0), occluder_max->get(0)) -
std::max(target_min->get(0), occluder_min->get(0)));
double overlap_y = std::max(0.0, std::min(target_max->get(1), occluder_max->get(1)) -
std::max(target_min->get(1), occluder_min->get(1)));
double overlap_z = std::max(0.0, std::min(target_max->get(2), occluder_max->get(2)) -
std::max(target_min->get(2), occluder_min->get(2)));
double overlap_volume = overlap_x * overlap_y * overlap_z;
// Calculate target volume
double target_volume = (target_max->get(0) - target_min->get(0)) *
(target_max->get(1) - target_min->get(1)) *
(target_max->get(2) - target_min->get(2));
if (target_volume <= 0) {
return 0.0;
}
// Return occlusion ratio
return overlap_volume / target_volume;
} catch (...) {
return 0.0; // Analysis failed
}
}
// Check if two components have interference/overlap
bool CreoManager::HasInterferenceWith(pfcFeature_ptr comp1, pfcFeature_ptr comp2) {
if (!comp1 || !comp2) {
return false;
}
try {
// Simple implementation based on bounding box overlap
double occlusion = CalculateOcclusionRatio(comp1, comp2);
return occlusion > 0.1; // 10% overlap indicates interference
} catch (...) {
return false; // Analysis failed
}
}
// =====================================================
// MULTI-DIRECTIONAL EXTREME VALUE PROJECTION ALGORITHM
// =====================================================
// Convert pfcPoint3D to Vector3D
CreoManager::Vector3D CreoManager::PfcPointToVector3D(pfcPoint3D_ptr point) {
if (!point) return Vector3D();
return Vector3D(point->get(0), point->get(1), point->get(2));
}
// Convert pfcOutline3D to AABB
CreoManager::AABB CreoManager::PfcOutlineToAABB(pfcOutline3D_ptr outline) {
if (!outline) return AABB();
Vector3D minPt = PfcPointToVector3D(outline->get(0));
Vector3D maxPt = PfcPointToVector3D(outline->get(1));
return AABB(minPt, maxPt);
}
// Get component world transformation matrix (updated for wfcWComponentPath)
pfcTransform3D_ptr CreoManager::GetComponentWorldTransform(pfcComponentPath_ptr path) {
// This function is no longer used in the new implementation
// We now use wfcWComponentPath->GetTransform() directly
return nullptr;
}
// Transform AABB from local to world coordinates
CreoManager::AABB CreoManager::TransformAABB(const AABB& localAABB, pfcTransform3D_ptr transform) {
if (!transform) return localAABB;
try {
// Transform all 8 corners of AABB
std::vector<Vector3D> corners = {
Vector3D(localAABB.minPoint.x, localAABB.minPoint.y, localAABB.minPoint.z),
Vector3D(localAABB.maxPoint.x, localAABB.minPoint.y, localAABB.minPoint.z),
Vector3D(localAABB.minPoint.x, localAABB.maxPoint.y, localAABB.minPoint.z),
Vector3D(localAABB.maxPoint.x, localAABB.maxPoint.y, localAABB.minPoint.z),
Vector3D(localAABB.minPoint.x, localAABB.minPoint.y, localAABB.maxPoint.z),
Vector3D(localAABB.maxPoint.x, localAABB.minPoint.y, localAABB.maxPoint.z),
Vector3D(localAABB.minPoint.x, localAABB.maxPoint.y, localAABB.maxPoint.z),
Vector3D(localAABB.maxPoint.x, localAABB.maxPoint.y, localAABB.maxPoint.z)
};
AABB worldAABB;
for (const Vector3D& corner : corners) {
// Create pfcPoint3D
pfcPoint3D_ptr localPoint = pfcPoint3D::create();
localPoint->set(0, corner.x);
localPoint->set(1, corner.y);
localPoint->set(2, corner.z);
// Transform point
pfcPoint3D_ptr worldPoint = transform->TransformPoint(localPoint);
// Convert back to Vector3D and expand AABB
Vector3D worldCorner = PfcPointToVector3D(worldPoint);
worldAABB.expand(worldCorner);
}
return worldAABB;
} catch (...) {
return localAABB; // Fallback to local AABB if transform fails
}
}
// Sample directions using Fibonacci sphere distribution
std::vector<CreoManager::Vector3D> CreoManager::SampleDirections(int count) {
std::vector<Vector3D> directions;
directions.reserve(count);
double phi = (1.0 + sqrt(5.0)) / 2.0; // Golden ratio
for (int i = 0; i < count; ++i) {
double t = (double(i) + 0.5) / double(count);
double z = 1.0 - 2.0 * t; // z from 1 to -1 (full sphere)
// No clamping - use full sphere sampling
double r = sqrt(std::max(0.0, 1.0 - z * z));
double azimuth = 2.0 * M_PI * i / phi;
Vector3D dir(r * cos(azimuth), r * sin(azimuth), z);
directions.push_back(dir.normalize());
}
return directions;
}
// Calculate support point projection for AABB in given direction
double CreoManager::CalculateProjectionSupport(const AABB& aabb, const Vector3D& direction) {
// Support function for AABB: choose the corner that maximizes dot product with direction
Vector3D supportPoint;
supportPoint.x = (direction.x >= 0) ? aabb.maxPoint.x : aabb.minPoint.x;
supportPoint.y = (direction.y >= 0) ? aabb.maxPoint.y : aabb.minPoint.y;
supportPoint.z = (direction.z >= 0) ? aabb.maxPoint.z : aabb.minPoint.z;
return supportPoint.dot(direction);
}
// Collect all components from assembly (no recursion needed)
std::vector<CreoManager::ComponentItem> CreoManager::CollectAllComponents(pfcAssembly_ptr assembly) {
std::vector<ComponentItem> components;
if (!assembly) return components;
try {
// We don't need feature mapping - will use component IDs directly from paths
// Step 2: Use wfcWAssembly to get component paths with transforms
wfcWAssembly_ptr wAssembly = wfcWAssembly::cast(assembly);
if (!wAssembly) return components;
// Get component paths - this already returns full depth paths from root
wfcWComponentPaths_ptr componentPaths = wAssembly->ListDisplayedComponents();
if (!componentPaths) return components;
for (int i = 0; i < componentPaths->getarraysize(); ++i) {
wfcWComponentPath_ptr wPath = componentPaths->get(i);
if (!wPath) continue;
try {
// Get component solid from path
pfcSolid_ptr compSolid = wPath->GetLeaf();
if (!compSolid) continue;
pfcModel_ptr compModel = pfcModel::cast(compSolid);
if (!compModel) continue;
// Get component name
std::string compName;
try {
xstring nameXStr = compModel->GetFileName();
compName = XStringToString(nameXStr);
if (compName.empty()) {
compName = "COMPONENT_" + std::to_string(i + 1);
}
} catch (...) {
compName = "COMPONENT_" + std::to_string(i + 1);
}
// Get stable feature ID from component path - use the leaf component ID
int stableFeatureId = -1;
xintsequence_ptr componentIds = wPath->GetComponentIds();
if (componentIds && componentIds->getarraysize() > 0) {
// Use the last ID in the path which represents the leaf component
stableFeatureId = componentIds->get(componentIds->getarraysize() - 1);
} else {
// Should not happen, but use index as last resort
stableFeatureId = i;
}
// Get local AABB
pfcOutline3D_ptr localOutline = compSolid->EvalOutline(nullptr);
if (!localOutline) continue;
AABB localAABB = PfcOutlineToAABB(localOutline);
// Get world transform from component path - relative to root assembly
pfcTransform3D_ptr worldTransform = nullptr;
try {
worldTransform = wPath->GetTransform(xfalse); // From root assembly to component
} catch (...) {
// Transform failed, use identity
}
AABB worldAABB = TransformAABB(localAABB, worldTransform);
// Create component item with complete information
ComponentItem item;
item.component = nullptr; // We don't have pfcComponentFeat directly
item.solid = compSolid;
item.path = nullptr; // We have wfcWComponentPath, different type
item.worldAABB = worldAABB; // Fast rough filtering
// Create preliminary item for OBB decision
ComponentItem tempItem;
tempItem.worldAABB = worldAABB;
tempItem.name = compName;
// Enhanced OBB computation: use unified decision logic
if (ShouldUseOBB(tempItem)) {
item.worldOBB = ComputePCABasedOBB(compSolid, worldTransform);
} else {
item.worldOBB = ExtractOBBFromTransform(localAABB, worldTransform);
}
item.featureId = stableFeatureId; // Use stable feature ID from component path
item.name = compName;
components.push_back(item);
// No recursion needed - ListDisplayedComponents already returns full depth
} catch (...) {
// Skip this component if any operation fails
continue;
}
}
} catch (...) {
// Collection failed, return what we have
}
return components;
}
// Main multi-directional extreme value projection analysis with depth window and voting
CreoManager::ProjectionAnalysisData CreoManager::PerformMultiDirectionalProjectionAnalysis(pfcAssembly_ptr assembly) {
ProjectionAnalysisData result;
if (!assembly) return result;
try {
// Step 1: Collect all components
result.components = CollectAllComponents(assembly);
if (result.components.empty()) return result;
// Step 2: Calculate global assembly AABB
for (const ComponentItem& comp : result.components) {
result.globalAABB.expand(comp.worldAABB.minPoint);
result.globalAABB.expand(comp.worldAABB.maxPoint);
}
// Step 3: Sample directions (96 directions for good coverage)
const int numDirections = 96;
std::vector<Vector3D> directions = SampleDirections(numDirections);
// Voting map: component ID -> number of directions where it's visible
result.visibilityVotes.reserve(result.components.size());
// OBB usage statistics for performance analysis
int totalOBBUsage = 0;
int totalAABBUsage = 0;
// Step 4: For each direction, determine visible components using depth window
for (const Vector3D& direction : directions) {
// Structure to hold projection data
struct ProjectionData {
double support; // Projection support value
double thickness; // Component thickness in this direction
int featureId;
};
std::vector<ProjectionData> projections;
projections.reserve(result.components.size());
// Calculate projections and thickness for all components
for (const ComponentItem& comp : result.components) {
// Smart selection: use OBB for elongated parts, AABB for regular parts
bool useOBB = ShouldUseOBB(comp);
double support;
if (useOBB) {
support = CalculateOBBProjectionSupport(comp.worldOBB, direction);
totalOBBUsage++;
} else {
support = CalculateProjectionSupport(comp.worldAABB, direction);
totalAABBUsage++;
}
// Calculate thickness consistently with support calculation
double thickness;
if (useOBB) {
thickness = CalculateOBBThickness(comp.worldOBB, direction);
} else {
// AABB thickness calculation (original method)
Vector3D minSupport, maxSupport;
minSupport.x = (direction.x < 0) ? comp.worldAABB.maxPoint.x : comp.worldAABB.minPoint.x;
minSupport.y = (direction.y < 0) ? comp.worldAABB.maxPoint.y : comp.worldAABB.minPoint.y;
minSupport.z = (direction.z < 0) ? comp.worldAABB.maxPoint.z : comp.worldAABB.minPoint.z;
maxSupport.x = (direction.x >= 0) ? comp.worldAABB.maxPoint.x : comp.worldAABB.minPoint.x;
maxSupport.y = (direction.y >= 0) ? comp.worldAABB.maxPoint.y : comp.worldAABB.minPoint.y;
maxSupport.z = (direction.z >= 0) ? comp.worldAABB.maxPoint.z : comp.worldAABB.minPoint.z;
thickness = std::abs((maxSupport - minSupport).dot(direction));
}
projections.push_back({support, thickness, comp.featureId});
}
// Sort by support value (highest first)
std::sort(projections.begin(), projections.end(),
[](const ProjectionData& a, const ProjectionData& b) {
return a.support > b.support;
});
if (projections.empty()) continue;
double bestSupport = projections.front().support;
// Calculate median thickness for adaptive window
std::vector<double> thicknesses;
thicknesses.reserve(projections.size());
for (const auto& p : projections) {
thicknesses.push_back(p.thickness);
}
std::nth_element(thicknesses.begin(),
thicknesses.begin() + thicknesses.size() / 2,
thicknesses.end());
double medianThickness = thicknesses[thicknesses.size() / 2];
// Adaptive depth window (max of absolute and relative)
double assemblyDiagonal = result.globalAABB.getDiagonalLength();
double absoluteWindow = std::max(1e-6, 0.002 * assemblyDiagonal); // 0.2% of diagonal
double relativeWindow = 0.15 * medianThickness; // 15% of median thickness
double depthWindow = std::max(absoluteWindow, relativeWindow);
// Top-K fallback to ensure minimum visible components
int topK = std::min<int>(12, std::max<int>(3, (int)std::sqrt(result.components.size())));
// Mark visible components (within window OR in top-K)
int rank = 0;
for (const auto& proj : projections) {
if ((proj.support >= bestSupport - depthWindow) || (rank < topK)) {
result.visibilityVotes[proj.featureId]++;
rank++;
} else {
break; // Components further back are not visible
}
}
}
// Step 5: Determine outer components based on voting threshold
double minVisibilityRatio = 0.08; // At least 8% of directions
int minVotes = std::max(3, (int)(minVisibilityRatio * numDirections));
for (const auto& kvp : result.visibilityVotes) {
if (kvp.second >= minVotes) {
result.outerComponentIds.insert(kvp.first);
}
}
// Step 6: Apply safety check - ensure at least some components are marked as outer
if (result.outerComponentIds.empty() && !result.components.empty()) {
// Fallback: mark components on assembly boundary as outer
double assemblyDiagonal = result.globalAABB.getDiagonalLength();
for (const ComponentItem& comp : result.components) {
// Check if component AABB touches assembly boundary
double boundaryTolerance = assemblyDiagonal * 0.005; // 0.5% tolerance for tighter boundary detection
if (abs(comp.worldAABB.minPoint.x - result.globalAABB.minPoint.x) <= boundaryTolerance ||
abs(comp.worldAABB.maxPoint.x - result.globalAABB.maxPoint.x) <= boundaryTolerance ||
abs(comp.worldAABB.minPoint.y - result.globalAABB.minPoint.y) <= boundaryTolerance ||
abs(comp.worldAABB.maxPoint.y - result.globalAABB.maxPoint.y) <= boundaryTolerance ||
abs(comp.worldAABB.minPoint.z - result.globalAABB.minPoint.z) <= boundaryTolerance ||
abs(comp.worldAABB.maxPoint.z - result.globalAABB.maxPoint.z) <= boundaryTolerance) {
result.outerComponentIds.insert(comp.featureId);
}
}
}
} catch (...) {
// Analysis failed, return empty set (conservative: don't delete anything)
}
return result;
}
// Get feature type name string
std::string CreoManager::GetFeatureTypeName(pfcFeatureType feat_type) {
switch (feat_type) {
case pfcFeatureType::pfcFEATTYPE_PROTRUSION:
return "PROTRUSION";
case pfcFeatureType::pfcFEATTYPE_CUT:
return "CUT";
case pfcFeatureType::pfcFEATTYPE_HOLE:
return "HOLE";
case pfcFeatureType::pfcFEATTYPE_ROUND:
return "ROUND";
case pfcFeatureType::pfcFEATTYPE_CHAMFER:
return "CHAMFER";
case pfcFeatureType::pfcFEATTYPE_SHELL:
return "SHELL";
case pfcFeatureType::pfcFEATTYPE_RIB:
return "RIB";
case pfcFeatureType::pfcFEATTYPE_DRAFT:
return "DRAFT";
case pfcFeatureType::pfcFEATTYPE_PATTERN:
return "PATTERN";
case pfcFeatureType::pfcFEATTYPE_COMPONENT:
return "COMPONENT";
case pfcFeatureType::pfcFEATTYPE_DATUM_PLANE:
return "DATUM_PLANE";
case pfcFeatureType::pfcFEATTYPE_DATUM_AXIS:
return "DATUM_AXIS";
case pfcFeatureType::pfcFEATTYPE_DATUM_POINT:
return "DATUM_POINT";
case pfcFeatureType::pfcFEATTYPE_COORD_SYS:
return "COORD_SYS";
case pfcFeatureType::pfcFEATTYPE_FIRST:
return "FIRST";
case pfcFeatureType::pfcFEATTYPE_DOME:
return "DOME";
case pfcFeatureType::pfcFEATTYPE_TORUS:
return "TORUS";
default:
return "UNKNOWN";
}
}
// Component Classifier Implementation
bool CreoManager::ComponentClassifier::MatchesPattern(const std::string& text, const std::vector<std::string>& patterns) {
// Convert to lowercase for case-insensitive matching
std::string lowerText = text;
std::transform(lowerText.begin(), lowerText.end(), lowerText.begin(), ::tolower);
for (const std::string& pattern : patterns) {
std::string lowerPattern = pattern;
std::transform(lowerPattern.begin(), lowerPattern.end(), lowerPattern.begin(), ::tolower);
if (lowerText.find(lowerPattern) != std::string::npos) {
return true;
}
}
return false;
}
bool CreoManager::ComponentClassifier::IsFastener(const std::string& name) {
// Common fastener naming patterns
static const std::vector<std::string> patterns = {
"bolt", "screw", "nut", "washer", "rivet", "pin",
"stud", "spacer", "bushing", "fastener", "clamp",
"m3", "m4", "m5", "m6", "m8", "m10", "m12", // Metric sizes
"hex", "socket", "cap_screw", "set_screw"
// Note: Chinese patterns removed to avoid encoding issues
};
return MatchesPattern(name, patterns);
}
bool CreoManager::ComponentClassifier::IsInternalStructure(const std::string& name) {
// Common internal structure naming patterns
static const std::vector<std::string> patterns = {
"rib", "support", "internal", "bracket", "gusset",
"reinforcement", "stiffener", "brace", "strut",
"webbing", "boss", "pocket", "cavity"
// Note: Chinese patterns removed to avoid encoding issues
};
return MatchesPattern(name, patterns);
}
bool CreoManager::ComponentClassifier::IsExternalShell(const std::string& name) {
// Common external shell naming patterns
static const std::vector<std::string> patterns = {
"cover", "housing", "shell", "case", "enclosure",
"panel", "shield", "shroud", "skin", "body",
"exterior", "outer", "facade", "surface"
// Note: Chinese patterns removed to avoid encoding issues
};
return MatchesPattern(name, patterns);
}
bool CreoManager::ComponentClassifier::IsLikelyInternal(const AABB& compAABB, const AABB& globalAABB) {
// Rule 1: Extremely small components (volume < 0.1% of total)
Vector3D compSize = compAABB.diagonal();
Vector3D globalSize = globalAABB.diagonal();
double compVolume = compSize.x * compSize.y * compSize.z;
double globalVolume = globalSize.x * globalSize.y * globalSize.z;
if (globalVolume > 0) {
double volumeRatio = compVolume / globalVolume;
if (volumeRatio < 0.001) { // Less than 0.1%
return true; // Likely a small internal feature
}
}
// Rule 2: Component completely inside assembly (far from all boundaries)
double minDistToBoundary = 1e9;
// Calculate minimum distance to any boundary
minDistToBoundary = std::min(minDistToBoundary, compAABB.minPoint.x - globalAABB.minPoint.x);
minDistToBoundary = std::min(minDistToBoundary, globalAABB.maxPoint.x - compAABB.maxPoint.x);
minDistToBoundary = std::min(minDistToBoundary, compAABB.minPoint.y - globalAABB.minPoint.y);
minDistToBoundary = std::min(minDistToBoundary, globalAABB.maxPoint.y - compAABB.maxPoint.y);
minDistToBoundary = std::min(minDistToBoundary, compAABB.minPoint.z - globalAABB.minPoint.z);
minDistToBoundary = std::min(minDistToBoundary, globalAABB.maxPoint.z - compAABB.maxPoint.z);
double globalDiagonal = globalAABB.getDiagonalLength();
if (globalDiagonal > 0 && minDistToBoundary > 0.2 * globalDiagonal) {
return true; // Component is deep inside, far from boundaries
}
return false;
}
// =====================================================
// OBB (ORIENTED BOUNDING BOX) IMPLEMENTATION
// =====================================================
// Extract OBB from local AABB and transform matrix
CreoManager::OBB CreoManager::ExtractOBBFromTransform(const AABB& localAABB, pfcTransform3D_ptr transform) {
OBB obb;
// Calculate local center and half extents
Vector3D localCenter = (localAABB.minPoint + localAABB.maxPoint) * 0.5;
obb.halfExtents = (localAABB.maxPoint - localAABB.minPoint) * 0.5;
if (!transform) {
// No transform, degrade to AABB
obb.center = localCenter;
obb.axes[0] = Vector3D(1, 0, 0);
obb.axes[1] = Vector3D(0, 1, 0);
obb.axes[2] = Vector3D(0, 0, 1);
return obb;
}
try {
// Transform center point to world coordinates
pfcPoint3D_ptr localPt = pfcPoint3D::create();
localPt->set(0, localCenter.x);
localPt->set(1, localCenter.y);
localPt->set(2, localCenter.z);
pfcPoint3D_ptr worldPt = transform->TransformPoint(localPt);
obb.center = PfcPointToVector3D(worldPt);
// Extract rotation axes by transforming unit vectors
for (int i = 0; i < 3; ++i) {
pfcPoint3D_ptr origin = pfcPoint3D::create();
origin->set(0, 0); origin->set(1, 0); origin->set(2, 0);
pfcPoint3D_ptr unitVec = pfcPoint3D::create();
unitVec->set(0, i == 0 ? 1.0 : 0.0);
unitVec->set(1, i == 1 ? 1.0 : 0.0);
unitVec->set(2, i == 2 ? 1.0 : 0.0);
pfcPoint3D_ptr transformedOrigin = transform->TransformPoint(origin);
pfcPoint3D_ptr transformedVec = transform->TransformPoint(unitVec);
obb.axes[i].x = transformedVec->get(0) - transformedOrigin->get(0);
obb.axes[i].y = transformedVec->get(1) - transformedOrigin->get(1);
obb.axes[i].z = transformedVec->get(2) - transformedOrigin->get(2);
obb.axes[i] = obb.axes[i].normalize();
}
} catch (...) {
// Transform failed, use AABB fallback
obb.center = localCenter;
obb.axes[0] = Vector3D(1, 0, 0);
obb.axes[1] = Vector3D(0, 1, 0);
obb.axes[2] = Vector3D(0, 0, 1);
}
return obb;
}
// Compute PCA-based OBB for enhanced precision
CreoManager::OBB CreoManager::ComputePCABasedOBB(pfcSolid_ptr solid, pfcTransform3D_ptr transform) {
OBB obb;
if (!solid) return obb;
try {
// Extract vertices from solid geometry
std::vector<Vector3D> localVertices = ExtractSolidVertices(solid);
if (localVertices.size() < 4) {
// Fallback to AABB-based method for insufficient vertices
pfcOutline3D_ptr localOutline = solid->EvalOutline(nullptr);
if (localOutline) {
AABB localAABB = PfcOutlineToAABB(localOutline);
return ExtractOBBFromTransform(localAABB, transform);
}
return obb;
}
// Transform vertices to world coordinates if transform exists
std::vector<Vector3D> worldVertices;
if (transform) {
worldVertices.reserve(localVertices.size());
for (const Vector3D& localVertex : localVertices) {
pfcPoint3D_ptr localPt = pfcPoint3D::create();
localPt->set(0, localVertex.x);
localPt->set(1, localVertex.y);
localPt->set(2, localVertex.z);
pfcPoint3D_ptr worldPt = transform->TransformPoint(localPt);
worldVertices.push_back(PfcPointToVector3D(worldPt));
}
} else {
worldVertices = localVertices;
}
// Compute OBB from transformed vertices using PCA
obb = ComputeOBBFromVertices(worldVertices);
} catch (...) {
// Fallback to transform-based method
pfcOutline3D_ptr localOutline = solid->EvalOutline(nullptr);
if (localOutline) {
AABB localAABB = PfcOutlineToAABB(localOutline);
return ExtractOBBFromTransform(localAABB, transform);
}
}
return obb;
}
// Extract vertices from solid geometry with sampling limit
std::vector<CreoManager::Vector3D> CreoManager::ExtractSolidVertices(pfcSolid_ptr solid, int maxVertices) {
std::vector<Vector3D> vertices;
if (!solid) return vertices;
try {
// Direct approach: use EvalOutline to get AABB corners
pfcOutline3D_ptr outline = solid->EvalOutline(nullptr);
if (outline) {
// Get min and max points from outline
Vector3D minPt = PfcPointToVector3D(outline->get(0));
Vector3D maxPt = PfcPointToVector3D(outline->get(1));
// Generate 8 corner points of AABB
vertices.push_back(Vector3D(minPt.x, minPt.y, minPt.z));
vertices.push_back(Vector3D(maxPt.x, minPt.y, minPt.z));
vertices.push_back(Vector3D(minPt.x, maxPt.y, minPt.z));
vertices.push_back(Vector3D(maxPt.x, maxPt.y, minPt.z));
vertices.push_back(Vector3D(minPt.x, minPt.y, maxPt.z));
vertices.push_back(Vector3D(maxPt.x, minPt.y, maxPt.z));
vertices.push_back(Vector3D(minPt.x, maxPt.y, maxPt.z));
vertices.push_back(Vector3D(maxPt.x, maxPt.y, maxPt.z));
// For enhanced precision, add mid-points on each face (optional enhancement)
if (maxVertices > 8) {
Vector3D center = (minPt + maxPt) * 0.5;
// Add face centers for better PCA analysis
vertices.push_back(Vector3D(minPt.x, center.y, center.z)); // Left face center
vertices.push_back(Vector3D(maxPt.x, center.y, center.z)); // Right face center
vertices.push_back(Vector3D(center.x, minPt.y, center.z)); // Front face center
vertices.push_back(Vector3D(center.x, maxPt.y, center.z)); // Back face center
vertices.push_back(Vector3D(center.x, center.y, minPt.z)); // Bottom face center
vertices.push_back(Vector3D(center.x, center.y, maxPt.z)); // Top face center
// Add edge midpoints if more precision needed
if (maxVertices > 14) {
vertices.push_back(Vector3D(center.x, minPt.y, minPt.z)); // Bottom front edge
vertices.push_back(Vector3D(center.x, maxPt.y, minPt.z)); // Bottom back edge
vertices.push_back(Vector3D(center.x, minPt.y, maxPt.z)); // Top front edge
vertices.push_back(Vector3D(center.x, maxPt.y, maxPt.z)); // Top back edge
vertices.push_back(Vector3D(minPt.x, center.y, minPt.z)); // Left bottom edge
vertices.push_back(Vector3D(maxPt.x, center.y, minPt.z)); // Right bottom edge
vertices.push_back(Vector3D(minPt.x, center.y, maxPt.z)); // Left top edge
vertices.push_back(Vector3D(maxPt.x, center.y, maxPt.z)); // Right top edge
}
}
}
} catch (...) {
// Return empty vector on failure
vertices.clear();
}
return vertices;
}
// Compute OBB from vertices using PCA
CreoManager::OBB CreoManager::ComputeOBBFromVertices(const std::vector<Vector3D>& vertices) {
OBB obb;
if (vertices.size() < 4) return obb;
try {
// Compute centroid
Vector3D centroid(0, 0, 0);
for (const Vector3D& v : vertices) {
centroid = centroid + v;
}
centroid = centroid * (1.0 / vertices.size());
// Compute principal axes using PCA
std::vector<Vector3D> principalAxes = ComputePrincipalAxes(vertices);
if (principalAxes.size() != 3) {
// Fallback to axis-aligned
obb.center = centroid;
obb.axes[0] = Vector3D(1, 0, 0);
obb.axes[1] = Vector3D(0, 1, 0);
obb.axes[2] = Vector3D(0, 0, 1);
// Compute extents in axis-aligned directions
Vector3D minPt = vertices[0];
Vector3D maxPt = vertices[0];
for (const Vector3D& v : vertices) {
if (v.x < minPt.x) minPt.x = v.x;
if (v.y < minPt.y) minPt.y = v.y;
if (v.z < minPt.z) minPt.z = v.z;
if (v.x > maxPt.x) maxPt.x = v.x;
if (v.y > maxPt.y) maxPt.y = v.y;
if (v.z > maxPt.z) maxPt.z = v.z;
}
obb.halfExtents = (maxPt - minPt) * 0.5;
return obb;
}
// Set OBB center and axes
obb.center = centroid;
obb.axes[0] = principalAxes[0];
obb.axes[1] = principalAxes[1];
obb.axes[2] = principalAxes[2];
// Compute half extents by projecting vertices onto principal axes
double minProj[3] = {1e9, 1e9, 1e9};
double maxProj[3] = {-1e9, -1e9, -1e9};
for (const Vector3D& vertex : vertices) {
Vector3D relative = vertex - centroid;
for (int i = 0; i < 3; ++i) {
double proj = relative.dot(obb.axes[i]);
if (proj < minProj[i]) minProj[i] = proj;
if (proj > maxProj[i]) maxProj[i] = proj;
}
}
obb.halfExtents.x = (maxProj[0] - minProj[0]) * 0.5;
obb.halfExtents.y = (maxProj[1] - minProj[1]) * 0.5;
obb.halfExtents.z = (maxProj[2] - minProj[2]) * 0.5;
} catch (...) {
// Return empty OBB on failure
obb = OBB();
}
return obb;
}
// Compute principal component axes using PCA algorithm
std::vector<CreoManager::Vector3D> CreoManager::ComputePrincipalAxes(const std::vector<Vector3D>& vertices) {
std::vector<Vector3D> axes;
if (vertices.size() < 4) return axes;
try {
// Compute centroid
Vector3D centroid(0, 0, 0);
for (const Vector3D& v : vertices) {
centroid = centroid + v;
}
centroid = centroid * (1.0 / vertices.size());
// Compute covariance matrix
double cov[3][3] = {{0}};
for (const Vector3D& v : vertices) {
Vector3D diff = v - centroid;
cov[0][0] += diff.x * diff.x;
cov[0][1] += diff.x * diff.y;
cov[0][2] += diff.x * diff.z;
cov[1][0] += diff.y * diff.x;
cov[1][1] += diff.y * diff.y;
cov[1][2] += diff.y * diff.z;
cov[2][0] += diff.z * diff.x;
cov[2][1] += diff.z * diff.y;
cov[2][2] += diff.z * diff.z;
}
double scale = 1.0 / (vertices.size() - 1);
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 3; ++j) {
cov[i][j] *= scale;
}
}
// Simplified eigenvalue computation for 3x3 matrix
// For performance, use simplified approach focusing on dominant eigenvector
Vector3D axis1(1, 0, 0);
Vector3D axis2(0, 1, 0);
Vector3D axis3(0, 0, 1);
// Find dominant direction (maximum variance)
double maxVar = cov[0][0];
int maxIdx = 0;
if (cov[1][1] > maxVar) { maxVar = cov[1][1]; maxIdx = 1; }
if (cov[2][2] > maxVar) { maxVar = cov[2][2]; maxIdx = 2; }
if (maxIdx == 0) {
axis1 = Vector3D(1, 0, 0);
axis2 = Vector3D(0, 1, 0);
axis3 = Vector3D(0, 0, 1);
} else if (maxIdx == 1) {
axis1 = Vector3D(0, 1, 0);
axis2 = Vector3D(1, 0, 0);
axis3 = Vector3D(0, 0, 1);
} else {
axis1 = Vector3D(0, 0, 1);
axis2 = Vector3D(1, 0, 0);
axis3 = Vector3D(0, 1, 0);
}
// Ensure orthogonality
axis2 = axis2 - axis1 * (axis2.dot(axis1));
axis2 = axis2.normalize();
axis3 = axis1.cross(axis2).normalize();
axes.push_back(axis1);
axes.push_back(axis2);
axes.push_back(axis3);
} catch (...) {
axes.clear();
}
return axes;
}
// Calculate OBB projection support (wrapper for OBB member function)
double CreoManager::CalculateOBBProjectionSupport(const OBB& obb, const Vector3D& direction) {
return obb.getSupport(direction);
}
// Calculate OBB thickness in given direction
double CreoManager::CalculateOBBThickness(const OBB& obb, const Vector3D& direction) {
// Transform world direction to OBB local space
Vector3D localDir(
direction.dot(obb.axes[0]),
direction.dot(obb.axes[1]),
direction.dot(obb.axes[2])
);
// Calculate thickness as the extent of OBB in this direction
// This gives the full dimension, not just half-extent
return 2.0 * (std::abs(localDir.x * obb.halfExtents.x) +
std::abs(localDir.y * obb.halfExtents.y) +
std::abs(localDir.z * obb.halfExtents.z));
}
// Determine whether to use OBB based on component characteristics
bool CreoManager::ShouldUseOBB(const ComponentItem& comp) {
Vector3D size = comp.worldAABB.diagonal();
if (size.length() < 1e-6) return false; // Degenerate case
// Enhanced multi-criteria OBB selection strategy
// Strategy 1: Geometric complexity analysis
double maxDim = std::max({size.x, size.y, size.z});
double minDim = std::min({size.x, size.y, size.z});
double medDim = size.x + size.y + size.z - maxDim - minDim;
double aspectRatio = (minDim > 1e-6) ? (maxDim / minDim) : 1.0;
double flatnessRatio = (minDim > 1e-6) ? (medDim / minDim) : 1.0;
// Strategy 2: Size-based efficiency threshold
double volume = size.x * size.y * size.z;
double surfaceArea = 2.0 * (size.x * size.y + size.y * size.z + size.x * size.z);
double compactness = (surfaceArea > 1e-6) ? (volume / surfaceArea) : 0.0;
// Strategy 3: Component classification
bool isElongated = ComponentClassifier::IsElongatedPart(comp.name);
bool isFastener = ComponentClassifier::IsFastener(comp.name);
bool isComplexShape = aspectRatio > 2.5 || flatnessRatio > 2.0;
// Decision matrix with weighted criteria
int obbScore = 0;
// Geometric criteria (primary)
if (aspectRatio > 4.0) obbScore += 3; // Highly elongated
else if (aspectRatio > 2.5) obbScore += 2; // Moderately elongated
else if (aspectRatio > 1.8) obbScore += 1; // Slightly elongated
if (flatnessRatio > 3.0) obbScore += 2; // Very flat components
else if (flatnessRatio > 2.0) obbScore += 1; // Moderately flat
// Naming pattern criteria
if (isElongated) obbScore += 2;
if (isFastener && aspectRatio > 2.0) obbScore += 1; // Long fasteners benefit from OBB
// Size and complexity criteria
if (volume > 1e-2 && compactness < 0.1) obbScore += 1; // Large, non-compact parts
if (volume < 1e-4) obbScore -= 2; // Tiny parts penalized
// Complex geometric shapes (non-regular bounding boxes)
if (isComplexShape && volume > 1e-3) obbScore += 1;
// Performance consideration: limit OBB usage for very small components
if (maxDim < 1e-2) obbScore -= 1; // Small components less likely to benefit
// Final decision: OBB if score >= 2
return obbScore >= 2;
}
// ComponentClassifier extension for elongated parts
bool CreoManager::ComponentClassifier::IsElongatedPart(const std::string& name) {
// Common elongated part naming patterns
static const std::vector<std::string> patterns = {
"pipe", "tube", "rod", "shaft", "beam", "bar",
"cable", "wire", "rail", "strip", "bracket",
"arm", "lever", "link", "connector", "hose"
};
return MatchesPattern(name, patterns);
}