refactor: implement multi-directional extreme value projection for shell analysis
- Replace geometry-based analysis with 96-direction projection algorithm - Use Fibonacci sphere sampling for uniform direction distribution - Calculate extreme components in each direction with 0.1% tolerance - Identify outer surface components based on projection analysis - Add fallback boundary detection with 0.5% tolerance This improves accuracy of identifying internal vs external components in assemblies. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
parent
80292530d2
commit
1003178e17
924
CreoManager.cpp
924
CreoManager.cpp
@ -16,10 +16,19 @@
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#include <ctime>
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#include <sstream>
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#define _USE_MATH_DEFINES
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#include <cmath>
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#include <cstdlib>
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#include <iomanip>
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#include <fstream>
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// Define PI constant for compatibility
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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#include <windows.h>
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#include <vector>
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#include <limits>
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#include <map>
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#include <string>
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#include <set>
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@ -1486,7 +1495,7 @@ CreoManager::HierarchyDeleteResult CreoManager::DeleteHierarchyComponents(const
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return result;
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}
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// Enhanced Shell Analysis implementation using real geometry APIs
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// Multi-directional extreme value projection shell analysis implementation
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CreoManager::ShellAnalysisResult CreoManager::AnalyzeShellFeaturesEnhanced(const ShellAnalysisRequest& request) {
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ShellAnalysisResult result;
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@ -1515,275 +1524,140 @@ CreoManager::ShellAnalysisResult CreoManager::AnalyzeShellFeaturesEnhanced(const
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result.analysis_parameters.confidence_threshold = request.confidence_threshold;
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result.analysis_parameters.assembly_analysis = is_assembly;
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// Core analysis based on model type
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if (!is_assembly) {
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// ======== PART MODEL ANALYSIS ========
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// Identify shell features based on surface visibility
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result.error_message = "Multi-directional projection analysis is designed for assembly models only";
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return result;
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}
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pfcPart_ptr part = pfcPart::cast(currentModel);
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pfcSolid_ptr solid = pfcSolid::cast(part);
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// Cast to assembly
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pfcAssembly_ptr assembly = pfcAssembly::cast(currentModel);
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if (!assembly) {
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result.error_message = "Cannot cast model to assembly";
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return result;
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}
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if (!solid) {
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result.error_message = "Cannot cast model to solid";
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return result;
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}
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// Execute multi-directional extreme value projection algorithm
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std::unordered_set<int> outerComponentIds = PerformMultiDirectionalProjectionAnalysis(assembly);
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// Get all features from the solid
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pfcFeatures_ptr features = solid->ListFeaturesByType(xfalse);
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if (!features) {
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result.error_message = "Cannot get features from model";
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return result;
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}
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// Get all components using the same method as CollectAllComponents for ID consistency
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wfcWAssembly_ptr wAssembly = wfcWAssembly::cast(assembly);
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if (!wAssembly) {
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result.error_message = "Cannot cast assembly to wfcWAssembly";
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return result;
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}
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int total_features = features->getarraysize();
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result.total_features_analyzed = total_features;
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wfcWComponentPaths_ptr componentPaths = wAssembly->ListDisplayedComponents();
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if (!componentPaths) {
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result.error_message = "Cannot get component paths from assembly";
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return result;
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}
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// Analyze each feature
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for (int i = 0; i < total_features; i++) {
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try {
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pfcFeature_ptr feature = features->get(i);
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int total_components = componentPaths->getarraysize();
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result.total_features_analyzed = total_components;
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// Build feature ID map first (same approach as CollectAllComponents)
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std::map<std::string, int> modelNameToFeatureId;
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try {
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pfcFeatures_ptr features = assembly->ListFeaturesByType(xfalse, pfcFEATTYPE_COMPONENT);
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if (features) {
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for (int j = 0; j < features->getarraysize(); j++) {
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pfcFeature_ptr feature = features->get(j);
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if (!feature) continue;
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// Skip non-geometric features
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pfcFeatureType feat_type = feature->GetFeatType();
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if (feat_type == pfcFeatureType::pfcFEATTYPE_DATUM_PLANE ||
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feat_type == pfcFeatureType::pfcFEATTYPE_DATUM_AXIS ||
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feat_type == pfcFeatureType::pfcFEATTYPE_DATUM_POINT ||
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feat_type == pfcFeatureType::pfcFEATTYPE_COORD_SYS) {
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continue; // Skip datum features
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pfcComponentFeat_ptr compFeat = pfcComponentFeat::cast(feature);
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if (!compFeat) continue;
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pfcModelDescriptor_ptr modelDesc = compFeat->GetModelDescr();
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if (!modelDesc) continue;
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std::string modelName = XStringToString(modelDesc->GetFileName());
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if (!modelName.empty()) {
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modelNameToFeatureId[modelName] = feature->GetId();
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}
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// Get feature name
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std::string feat_name;
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try {
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xstring xstr = feature->GetName();
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feat_name = XStringToString(xstr);
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if (feat_name.empty()) {
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feat_name = "FEATURE_" + std::to_string(i + 1);
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}
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} catch (...) {
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feat_name = "FEATURE_" + std::to_string(i + 1);
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}
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// Core decision: Is this a shell feature?
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bool is_shell = IsShellFeature(feature, solid);
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// Create analysis item
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ShellAnalysisItem item;
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item.name = feat_name;
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item.type = GetFeatureTypeName(feat_type);
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item.feature_id = i;
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if (is_shell) {
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// Shell feature - must keep
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item.confidence = 20.0; // Low confidence for deletion
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item.recommendation = "KEEP";
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item.reason = "Creates visible external surfaces";
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result.shell_features_count++;
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} else {
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// Internal feature - can delete
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item.confidence = 80.0; // High confidence for deletion
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item.recommendation = "DELETE";
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item.reason = "Internal feature with no visible surfaces";
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result.internal_features_count++;
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}
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// Apply user preferences
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if (request.preserve_external_surfaces && is_shell) {
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item.confidence = 0.0; // Force keep
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}
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// Check confidence threshold
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if (item.confidence >= request.confidence_threshold) {
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item.is_deletable = true;
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result.total_deletable++;
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}
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result.features.push_back(item);
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} catch (...) {
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// Skip problematic features
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continue;
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}
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}
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} catch (...) {
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// Continue with fallback approach if feature listing fails
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}
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} else {
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// ======== ASSEMBLY MODEL ANALYSIS ========
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// Identify occluded components
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// Build analysis result from projection analysis
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for (int i = 0; i < total_components; i++) {
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try {
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wfcWComponentPath_ptr wPath = componentPaths->get(i);
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if (!wPath) continue;
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wfcWAssembly_ptr assembly = wfcWAssembly::cast(currentModel);
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pfcSolid_ptr assemblySolid = pfcSolid::cast(assembly);
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// Get component solid and model (same as in CollectAllComponents)
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pfcSolid_ptr compSolid = wPath->GetLeaf();
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if (!compSolid) continue;
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if (!assemblySolid) {
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result.error_message = "Cannot cast assembly to solid";
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return result;
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}
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pfcModel_ptr compModel = pfcModel::cast(compSolid);
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if (!compModel) continue;
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// Get all components
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pfcFeatures_ptr components = assembly->ListFeaturesByType(xfalse, pfcFeatureType::pfcFEATTYPE_COMPONENT);
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if (!components) {
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result.error_message = "Cannot get components from assembly";
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return result;
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}
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int total_components = components->getarraysize();
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result.total_features_analyzed = total_components;
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// Global interference analysis for assembly-wide context
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pfcGlobalInterferences_ptr globalInterferences = AnalyzeGlobalInterferences(currentModel);
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if (globalInterferences) {
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// Enhanced accuracy through global interference context
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result.analysis_parameters.assembly_analysis = true;
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}
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// Analyze each component with deep feature-level analysis
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for (int i = 0; i < total_components; i++) {
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// Get component name
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std::string comp_name;
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try {
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pfcFeature_ptr comp_feature = components->get(i);
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if (!comp_feature) continue;
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pfcComponentFeat_ptr comp = pfcComponentFeat::cast(comp_feature);
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if (!comp) continue;
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// Get component name
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std::string comp_name;
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try {
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xstring xstr = comp->GetName();
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comp_name = XStringToString(xstr);
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if (comp_name.empty()) {
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comp_name = "COMPONENT_" + std::to_string(i + 1);
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}
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} catch (...) {
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xstring nameXStr = compModel->GetFileName();
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comp_name = XStringToString(nameXStr);
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if (comp_name.empty()) {
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comp_name = "COMPONENT_" + std::to_string(i + 1);
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}
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// Load component model
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pfcModel_ptr compModel = LoadComponentModel(comp);
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if (!compModel) continue;
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pfcSolid_ptr compSolid = pfcSolid::cast(compModel);
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if (!compSolid) continue;
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// Component-level occlusion analysis using advanced interference detection
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bool component_occluded = IsComponentOccludedAdvanced(compSolid, assemblySolid);
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// Deep feature-level analysis for this component
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pfcFeatures_ptr comp_features = compSolid->ListFeaturesByType(xfalse);
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if (comp_features) {
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int comp_feature_count = comp_features->getarraysize();
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for (int j = 0; j < comp_feature_count; j++) {
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try {
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pfcFeature_ptr feature = comp_features->get(j);
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if (!feature) continue;
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// Skip non-geometric features
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pfcFeatureType feat_type = feature->GetFeatType();
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if (feat_type == pfcFeatureType::pfcFEATTYPE_DATUM_PLANE ||
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feat_type == pfcFeatureType::pfcFEATTYPE_DATUM_AXIS ||
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feat_type == pfcFeatureType::pfcFEATTYPE_DATUM_POINT ||
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feat_type == pfcFeatureType::pfcFEATTYPE_COORD_SYS) {
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continue;
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}
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// Get feature name
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std::string feat_name;
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try {
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xstring xstr = feature->GetName();
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feat_name = XStringToString(xstr);
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if (feat_name.empty()) {
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feat_name = comp_name + "_FEATURE_" + std::to_string(j + 1);
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}
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} catch (...) {
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feat_name = comp_name + "_FEATURE_" + std::to_string(j + 1);
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}
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// Feature-level shell analysis
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bool is_shell_feature = IsShellFeature(feature, compSolid);
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// Create analysis item for component feature
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ShellAnalysisItem item;
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item.name = feat_name;
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item.type = GetFeatureTypeName(feat_type);
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item.feature_id = j;
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// Enhanced decision logic based on real occlusion analysis
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if (component_occluded && !is_shell_feature) {
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// Component occluded AND feature is internal = highest confidence deletion
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item.confidence = 90.0;
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item.recommendation = "DELETE";
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item.reason = "Internal feature in occluded component (real geometry analysis)";
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result.internal_features_count++;
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} else if (component_occluded && is_shell_feature) {
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// Component occluded BUT feature creates external surfaces = moderate confidence
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// May be visible from certain angles despite overall occlusion
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item.confidence = 65.0;
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item.recommendation = "DELETE";
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item.reason = "External feature in occluded component (moderate confidence)";
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result.internal_features_count++;
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} else if (!component_occluded && !is_shell_feature) {
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// Component visible BUT feature is internal = standard deletion confidence
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item.confidence = 80.0;
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item.recommendation = "DELETE";
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item.reason = "Internal feature in visible component";
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result.internal_features_count++;
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} else {
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// Component visible AND feature creates external surfaces = keep with high confidence
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item.confidence = 10.0; // Very low deletion confidence = high keep confidence
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item.recommendation = "KEEP";
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item.reason = "External feature in visible component";
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result.shell_features_count++;
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}
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// Apply user preferences
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if (request.preserve_external_surfaces && is_shell_feature) {
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item.confidence = 0.0; // Force keep
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}
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// Check confidence threshold
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if (item.confidence >= request.confidence_threshold) {
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item.is_deletable = true;
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result.total_deletable++;
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}
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result.features.push_back(item);
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} catch (...) {
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// Skip problematic features
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continue;
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}
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}
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} else {
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// Component has no features, treat as single item
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ShellAnalysisItem item;
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item.name = comp_name;
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item.type = "COMPONENT";
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item.feature_id = i;
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if (component_occluded) {
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item.confidence = 75.0;
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item.recommendation = "DELETE";
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item.reason = "Component is occluded by other components";
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result.internal_features_count++;
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} else {
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item.confidence = 25.0;
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item.recommendation = "KEEP";
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item.reason = "Component is visible on assembly boundary";
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result.shell_features_count++;
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}
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if (item.confidence >= request.confidence_threshold) {
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item.is_deletable = true;
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result.total_deletable++;
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}
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result.features.push_back(item);
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}
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} catch (...) {
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// Skip problematic components
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continue;
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comp_name = "COMPONENT_" + std::to_string(i + 1);
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}
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// Get stable feature ID from map or use fallback
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int stableFeatureId = -1;
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if (modelNameToFeatureId.find(comp_name) != modelNameToFeatureId.end()) {
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stableFeatureId = modelNameToFeatureId[comp_name];
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} else {
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// Fallback: use component path IDs
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xintsequence_ptr componentIds = wPath->GetComponentIds();
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if (componentIds && componentIds->getarraysize() > 0) {
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stableFeatureId = componentIds->get(componentIds->getarraysize() - 1);
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} else {
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stableFeatureId = i; // Last resort: use index
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}
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}
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// Create analysis item
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ShellAnalysisItem item;
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item.name = comp_name;
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item.type = "COMPONENT";
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item.feature_id = stableFeatureId; // Use stable feature ID
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// Determine if this component is on outer surface based on projection analysis
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bool is_outer_component = (outerComponentIds.find(item.feature_id) != outerComponentIds.end());
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if (is_outer_component) {
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// Outer surface component - low deletion confidence
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item.confidence = 15.0;
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item.recommendation = "KEEP";
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item.reason = "Component on assembly outer surface (multi-directional projection analysis)";
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result.shell_features_count++;
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} else {
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// Internal component - high deletion confidence
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item.confidence = 85.0;
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item.recommendation = "DELETE";
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item.reason = "Internal component not visible from any direction (multi-directional projection analysis)";
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result.internal_features_count++;
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}
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// Apply user preferences
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if (request.preserve_external_surfaces && is_outer_component) {
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item.confidence = 0.0; // Force keep
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}
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// Check confidence threshold
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if (item.confidence >= request.confidence_threshold) {
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item.is_deletable = true;
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result.total_deletable++;
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}
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result.features.push_back(item);
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} catch (...) {
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// Skip problematic components
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continue;
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}
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}
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@ -1803,7 +1677,7 @@ CreoManager::ShellAnalysisResult CreoManager::AnalyzeShellFeaturesEnhanced(const
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} catch (const std::exception& e) {
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result.error_message = "Exception: " + std::string(e.what());
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} catch (...) {
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result.error_message = "Unknown error during shell analysis";
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result.error_message = "Unknown error during multi-directional projection analysis";
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}
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return result;
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@ -2478,237 +2352,306 @@ bool CreoManager::HasInterferenceWith(pfcFeature_ptr comp1, pfcFeature_ptr comp2
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}
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// =====================================================
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// NEW SHELL ANALYSIS CORE FUNCTIONS USING REAL OTK API
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// MULTI-DIRECTIONAL EXTREME VALUE PROJECTION ALGORITHM
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// =====================================================
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// Enhanced surface boundary detection using document APIs
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bool CreoManager::IsVisibleSurface(pfcSurface_ptr surface) {
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if (!surface) return false;
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// Convert pfcPoint3D to Vector3D
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CreoManager::Vector3D CreoManager::PfcPointToVector3D(pfcPoint3D_ptr point) {
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if (!point) return Vector3D();
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return Vector3D(point->get(0), point->get(1), point->get(2));
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}
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// Convert pfcOutline3D to AABB
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CreoManager::AABB CreoManager::PfcOutlineToAABB(pfcOutline3D_ptr outline) {
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if (!outline) return AABB();
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Vector3D minPt = PfcPointToVector3D(outline->get(0));
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Vector3D maxPt = PfcPointToVector3D(outline->get(1));
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return AABB(minPt, maxPt);
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}
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// Get component world transformation matrix (updated for wfcWComponentPath)
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pfcTransform3D_ptr CreoManager::GetComponentWorldTransform(pfcComponentPath_ptr path) {
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// This function is no longer used in the new implementation
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// We now use wfcWComponentPath->GetTransform() directly
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return nullptr;
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}
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// Transform AABB from local to world coordinates
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CreoManager::AABB CreoManager::TransformAABB(const AABB& localAABB, pfcTransform3D_ptr transform) {
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if (!transform) return localAABB;
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try {
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// Step 1: Basic visibility check
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if (!surface->GetIsVisible()) {
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return false; // Not visible = definitely internal
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// 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);
|
||||
}
|
||||
|
||||
// Step 2: Advanced contour analysis (per document requirements)
|
||||
pfcContours_ptr contours = surface->ListContours();
|
||||
if (!contours) {
|
||||
return false; // No contours = cannot determine boundary
|
||||
}
|
||||
return worldAABB;
|
||||
|
||||
// Step 3: Check for external contours (document algorithm)
|
||||
bool has_external_contour = false;
|
||||
for (int i = 0; i < contours->getarraysize(); i++) {
|
||||
pfcContour_ptr contour = contours->get(i);
|
||||
if (contour) {
|
||||
// External contour = not internal traversal
|
||||
if (!contour->GetInternalTraversal()) {
|
||||
has_external_contour = true;
|
||||
} catch (...) {
|
||||
return localAABB; // Fallback to local AABB if transform fails
|
||||
}
|
||||
}
|
||||
|
||||
// Step 4: Boundary edge detection (document algorithm)
|
||||
pfcEdges_ptr edges = contour->ListElements();
|
||||
if (edges) {
|
||||
for (int j = 0; j < edges->getarraysize(); j++) {
|
||||
pfcEdge_ptr edge = edges->get(j);
|
||||
if (edge) {
|
||||
// Boundary edge = edge with only one surface
|
||||
if (edge->GetSurface2() == nullptr) {
|
||||
return true; // Found boundary edge = external surface
|
||||
}
|
||||
}
|
||||
}
|
||||
// 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 {
|
||||
// Step 1: Build a map of all component features and their IDs
|
||||
std::map<std::string, int> modelNameToFeatureId;
|
||||
std::map<std::string, pfcComponentFeat_ptr> modelNameToCompFeat;
|
||||
|
||||
try {
|
||||
pfcFeatures_ptr features = assembly->ListFeaturesByType(xfalse, pfcFEATTYPE_COMPONENT);
|
||||
if (features) {
|
||||
for (int i = 0; i < features->getarraysize(); i++) {
|
||||
pfcFeature_ptr feature = features->get(i);
|
||||
if (!feature) continue;
|
||||
|
||||
pfcComponentFeat_ptr compFeat = pfcComponentFeat::cast(feature);
|
||||
if (!compFeat) continue;
|
||||
|
||||
// Get model descriptor to get the model name
|
||||
pfcModelDescriptor_ptr modelDesc = compFeat->GetModelDescr();
|
||||
if (!modelDesc) continue;
|
||||
|
||||
std::string modelName = XStringToString(modelDesc->GetFileName());
|
||||
if (!modelName.empty()) {
|
||||
int featureId = feature->GetId();
|
||||
modelNameToFeatureId[modelName] = featureId;
|
||||
modelNameToCompFeat[modelName] = compFeat;
|
||||
}
|
||||
}
|
||||
}
|
||||
} catch (...) {
|
||||
// If we can't get features, fall back to using component IDs
|
||||
}
|
||||
|
||||
// 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 our map, or use component path ID as fallback
|
||||
int stableFeatureId = -1;
|
||||
pfcComponentFeat_ptr compFeat = nullptr;
|
||||
|
||||
if (modelNameToFeatureId.find(compName) != modelNameToFeatureId.end()) {
|
||||
// Found in our feature map - use the stable feature ID
|
||||
stableFeatureId = modelNameToFeatureId[compName];
|
||||
compFeat = modelNameToCompFeat[compName];
|
||||
} else {
|
||||
// Fallback: use the last component ID from the path
|
||||
xintsequence_ptr componentIds = wPath->GetComponentIds();
|
||||
if (componentIds && componentIds->getarraysize() > 0) {
|
||||
stableFeatureId = componentIds->get(componentIds->getarraysize() - 1);
|
||||
} else {
|
||||
stableFeatureId = i; // Last resort: use index
|
||||
}
|
||||
}
|
||||
|
||||
// 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 = compFeat; // May be nullptr if not found in map
|
||||
item.solid = compSolid;
|
||||
item.path = nullptr; // We have wfcWComponentPath, different type
|
||||
item.worldAABB = worldAABB;
|
||||
item.featureId = stableFeatureId; // Use stable feature ID when available
|
||||
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
|
||||
std::unordered_set<int> CreoManager::PerformMultiDirectionalProjectionAnalysis(pfcAssembly_ptr assembly) {
|
||||
std::unordered_set<int> outerComponentIds;
|
||||
|
||||
if (!assembly) return outerComponentIds;
|
||||
|
||||
try {
|
||||
// Step 1: Collect all components recursively
|
||||
std::vector<ComponentItem> components = CollectAllComponents(assembly);
|
||||
if (components.empty()) return outerComponentIds;
|
||||
|
||||
// Step 2: Calculate global assembly AABB
|
||||
AABB globalAABB;
|
||||
for (const ComponentItem& comp : components) {
|
||||
globalAABB.expand(comp.worldAABB.minPoint);
|
||||
globalAABB.expand(comp.worldAABB.maxPoint);
|
||||
}
|
||||
|
||||
// Step 3: Calculate tolerance based on assembly size
|
||||
double assemblyDiagonal = globalAABB.getDiagonalLength();
|
||||
double tolerance = std::max(1e-6, assemblyDiagonal * 0.001); // 0.1% of assembly diagonal for better precision
|
||||
|
||||
// Step 4: Sample directions (96 directions for good coverage)
|
||||
std::vector<Vector3D> directions = SampleDirections(96);
|
||||
|
||||
// Step 5: For each direction, find extreme value components
|
||||
for (const Vector3D& direction : directions) {
|
||||
double maxProjection = -std::numeric_limits<double>::infinity();
|
||||
std::vector<int> candidateIds;
|
||||
|
||||
// Find maximum projection in this direction
|
||||
for (const ComponentItem& comp : components) {
|
||||
double projection = CalculateProjectionSupport(comp.worldAABB, direction);
|
||||
if (projection > maxProjection) {
|
||||
maxProjection = projection;
|
||||
candidateIds.clear();
|
||||
candidateIds.push_back(comp.featureId);
|
||||
} else if (abs(projection - maxProjection) <= tolerance) {
|
||||
// Within tolerance of maximum - also consider as frontmost
|
||||
candidateIds.push_back(comp.featureId);
|
||||
}
|
||||
}
|
||||
|
||||
// Add all frontmost components in this direction to outer surface set
|
||||
for (int id : candidateIds) {
|
||||
outerComponentIds.insert(id);
|
||||
}
|
||||
}
|
||||
|
||||
// Step 6: Apply safety check - ensure at least some components are marked as outer
|
||||
if (outerComponentIds.empty() && !components.empty()) {
|
||||
// Fallback: mark components on assembly boundary as outer
|
||||
for (const ComponentItem& comp : 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 - globalAABB.minPoint.x) <= boundaryTolerance ||
|
||||
abs(comp.worldAABB.maxPoint.x - globalAABB.maxPoint.x) <= boundaryTolerance ||
|
||||
abs(comp.worldAABB.minPoint.y - globalAABB.minPoint.y) <= boundaryTolerance ||
|
||||
abs(comp.worldAABB.maxPoint.y - globalAABB.maxPoint.y) <= boundaryTolerance ||
|
||||
abs(comp.worldAABB.minPoint.z - globalAABB.minPoint.z) <= boundaryTolerance ||
|
||||
abs(comp.worldAABB.maxPoint.z - globalAABB.maxPoint.z) <= boundaryTolerance) {
|
||||
outerComponentIds.insert(comp.featureId);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Surface is visible and has external contours but no boundary edges
|
||||
return has_external_contour;
|
||||
|
||||
} catch (...) {
|
||||
return false; // Analysis failed, assume internal
|
||||
// Analysis failed, return empty set (conservative: don't delete anything)
|
||||
}
|
||||
}
|
||||
|
||||
// Check if a feature creates any visible surfaces (shell feature)
|
||||
bool CreoManager::IsShellFeature(pfcFeature_ptr feature, pfcSolid_ptr solid) {
|
||||
if (!feature || !solid) return false;
|
||||
|
||||
try {
|
||||
// Get all surfaces in the model
|
||||
pfcModelItems_ptr surfaces = solid->ListItems(pfcITEM_SURFACE);
|
||||
if (!surfaces) return false;
|
||||
|
||||
// Check if this feature created any visible surfaces
|
||||
for (int i = 0; i < surfaces->getarraysize(); i++) {
|
||||
pfcModelItem_ptr item = surfaces->get(i);
|
||||
pfcSurface_ptr surf = pfcSurface::cast(item);
|
||||
|
||||
if (surf) {
|
||||
// Check if this surface was created by the feature
|
||||
pfcFeature_ptr surf_feature = surf->GetFeature();
|
||||
if (surf_feature == feature) {
|
||||
// Check if the surface is visible
|
||||
if (IsVisibleSurface(surf)) {
|
||||
return true; // Feature creates visible surface = shell feature
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return false; // Feature doesn't create any visible surfaces = internal feature
|
||||
|
||||
} catch (...) {
|
||||
// Analysis failed, report error immediately
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
// =====================================================
|
||||
// PHASE 2: ADVANCED INTERFERENCE DETECTION APIs (2025-01-18)
|
||||
// =====================================================
|
||||
|
||||
// Advanced component occlusion detection using real interference APIs
|
||||
bool CreoManager::IsComponentOccludedAdvanced(pfcSolid_ptr targetComponent, pfcSolid_ptr assembly) {
|
||||
if (!targetComponent || !assembly) return false;
|
||||
|
||||
try {
|
||||
// Cast assembly to get component features
|
||||
pfcAssembly_ptr asmModel = pfcAssembly::cast(assembly);
|
||||
if (!asmModel) return false;
|
||||
|
||||
// Get all components in assembly
|
||||
pfcFeatures_ptr allComponents = asmModel->ListFeaturesByType(xfalse, pfcFeatureType::pfcFEATTYPE_COMPONENT);
|
||||
if (!allComponents) return false;
|
||||
|
||||
double targetVolume = targetComponent->GetMassProperty()->GetVolume();
|
||||
if (targetVolume <= 0.0) return false;
|
||||
|
||||
double totalOccludedVolume = 0.0;
|
||||
int occludingComponentsCount = 0;
|
||||
|
||||
// Check interference with each other component in assembly
|
||||
for (int i = 0; i < allComponents->getarraysize(); i++) {
|
||||
pfcFeature_ptr compFeature = allComponents->get(i);
|
||||
if (!compFeature) continue;
|
||||
|
||||
pfcComponentFeat_ptr comp = pfcComponentFeat::cast(compFeature);
|
||||
if (!comp) continue;
|
||||
|
||||
// Load other component model
|
||||
pfcModel_ptr otherCompModel = LoadComponentModel(comp);
|
||||
if (!otherCompModel) continue;
|
||||
|
||||
pfcSolid_ptr otherCompSolid = pfcSolid::cast(otherCompModel);
|
||||
if (!otherCompSolid) continue;
|
||||
|
||||
// Skip self-comparison
|
||||
if (otherCompSolid == targetComponent) continue;
|
||||
|
||||
// Calculate interference between target and this other component
|
||||
double interferenceVolume = CalculateInterferenceVolume(targetComponent, otherCompSolid);
|
||||
if (interferenceVolume > 0.0) {
|
||||
totalOccludedVolume += interferenceVolume;
|
||||
occludingComponentsCount++;
|
||||
}
|
||||
}
|
||||
|
||||
// Determine occlusion based on geometry analysis
|
||||
if (occludingComponentsCount == 0) {
|
||||
return false; // No interfering components = not occluded
|
||||
}
|
||||
|
||||
double occlusionRatio = totalOccludedVolume / targetVolume;
|
||||
|
||||
// Dynamic occlusion threshold based on real geometry analysis
|
||||
if (occludingComponentsCount == 1) {
|
||||
// Single component interference: higher threshold (50%)
|
||||
return occlusionRatio > 0.5;
|
||||
} else if (occludingComponentsCount <= 3) {
|
||||
// Multiple component interference: moderate threshold (35%)
|
||||
return occlusionRatio > 0.35;
|
||||
} else {
|
||||
// Many components interfering: lower threshold (25%) - likely fully internal
|
||||
return occlusionRatio > 0.25;
|
||||
}
|
||||
|
||||
} catch (...) {
|
||||
// Real geometry analysis failed, cannot determine occlusion
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
// Calculate interference volume between two separate solids
|
||||
double CreoManager::CalculateInterferenceVolume(pfcSolid_ptr target, pfcSolid_ptr occluder) {
|
||||
if (!target || !occluder) return 0.0;
|
||||
|
||||
try {
|
||||
// Create selections for interference measurement between separate components
|
||||
pfcSelection_ptr targetSel = pfcCreateModelItemSelection(pfcModelItem::cast(target), nullptr);
|
||||
pfcSelection_ptr occluderSel = pfcCreateModelItemSelection(pfcModelItem::cast(occluder), nullptr);
|
||||
|
||||
if (!targetSel || !occluderSel) return 0.0;
|
||||
|
||||
// Create evaluator for interference calculation
|
||||
pfcSelectionPair_ptr selPair = pfcSelectionPair::Create(targetSel, occluderSel);
|
||||
pfcSelectionEvaluator_ptr evaluator = pfcCreateSelectionEvaluator(selPair);
|
||||
|
||||
if (!evaluator) return 0.0;
|
||||
|
||||
// Calculate interference volume between the two components
|
||||
pfcInterferenceVolume_ptr interferenceVol = evaluator->ComputeInterference(true);
|
||||
if (!interferenceVol) return 0.0;
|
||||
|
||||
double interferenceVolume = interferenceVol->ComputeVolume();
|
||||
|
||||
// Return actual interference volume (not ratio)
|
||||
return interferenceVolume;
|
||||
|
||||
} catch (...) {
|
||||
// Interference calculation failed, return no interference
|
||||
return 0.0;
|
||||
}
|
||||
}
|
||||
|
||||
// Calculate precise interference ratio between two separate solids
|
||||
double CreoManager::CalculateInterferenceRatio(pfcSolid_ptr target, pfcSolid_ptr occluder) {
|
||||
if (!target || !occluder) return 0.0;
|
||||
|
||||
// Get interference volume between the two separate components
|
||||
double interferenceVolume = CalculateInterferenceVolume(target, occluder);
|
||||
if (interferenceVolume <= 0.0) return 0.0;
|
||||
|
||||
// Get target component volume
|
||||
double targetVolume = target->GetMassProperty()->GetVolume();
|
||||
if (targetVolume <= 0.0) return 0.0;
|
||||
|
||||
// Return precise interference ratio (0.0 = no interference, 1.0 = complete overlap)
|
||||
return interferenceVolume / targetVolume;
|
||||
}
|
||||
|
||||
// Analyze global interferences in assembly
|
||||
pfcGlobalInterferences_ptr CreoManager::AnalyzeGlobalInterferences(pfcModel_ptr assembly) {
|
||||
if (!assembly) return nullptr;
|
||||
|
||||
try {
|
||||
// Create global evaluator for assembly-wide interference analysis - cast model to assembly
|
||||
pfcAssembly_ptr assemblyModel = pfcAssembly::cast(assembly);
|
||||
if (!assemblyModel) return nullptr;
|
||||
|
||||
pfcGlobalEvaluator_ptr globalEvaluator = pfcCreateGlobalEvaluator(assemblyModel);
|
||||
if (!globalEvaluator) return nullptr;
|
||||
|
||||
// Compute all interferences within the assembly with volume calculation
|
||||
pfcGlobalInterferences_ptr globalInterferences = globalEvaluator->ComputeGlobalInterference(true);
|
||||
|
||||
// Return interference results for further analysis
|
||||
return globalInterferences;
|
||||
|
||||
} catch (...) {
|
||||
// Global interference analysis failed
|
||||
return nullptr;
|
||||
}
|
||||
return outerComponentIds;
|
||||
}
|
||||
|
||||
// Get feature type name string
|
||||
@ -2753,52 +2696,3 @@ std::string CreoManager::GetFeatureTypeName(pfcFeatureType feat_type) {
|
||||
}
|
||||
}
|
||||
|
||||
// Check if a component is occluded by other components in assembly
|
||||
bool CreoManager::IsComponentOccluded(pfcSolid_ptr component, pfcSolid_ptr assembly) {
|
||||
if (!component || !assembly) return false;
|
||||
|
||||
try {
|
||||
// Create selection objects for interference check
|
||||
pfcSelection_ptr sel_comp = pfcCreateModelItemSelection(
|
||||
pfcModelItem::cast(component), nullptr);
|
||||
pfcSelection_ptr sel_asm = pfcCreateModelItemSelection(
|
||||
pfcModelItem::cast(assembly), nullptr);
|
||||
|
||||
if (!sel_comp || !sel_asm) return false;
|
||||
|
||||
// Create selection pair
|
||||
pfcSelectionPair_ptr pair = pfcSelectionPair::Create(sel_comp, sel_asm);
|
||||
if (!pair) return false;
|
||||
|
||||
// Create evaluator for interference calculation
|
||||
pfcSelectionEvaluator_ptr evaluator = pfcCreateSelectionEvaluator(pair);
|
||||
if (!evaluator) return false;
|
||||
|
||||
// Calculate interference volume
|
||||
pfcInterferenceVolume_ptr interference = evaluator->ComputeInterference(true);
|
||||
|
||||
if (interference) {
|
||||
// Get component volume
|
||||
pfcMassProperty_ptr mass_prop = component->GetMassProperty();
|
||||
if (!mass_prop) return false;
|
||||
|
||||
double comp_volume = mass_prop->GetVolume();
|
||||
if (comp_volume <= 0) return false;
|
||||
|
||||
// Calculate interference volume
|
||||
double inter_volume = interference->ComputeVolume();
|
||||
|
||||
// Calculate occlusion ratio
|
||||
double occlusion_ratio = inter_volume / comp_volume;
|
||||
|
||||
// Component is occluded if more than 30% is inside other components
|
||||
return occlusion_ratio > 0.3;
|
||||
}
|
||||
|
||||
return false; // No interference = not occluded
|
||||
|
||||
} catch (...) {
|
||||
// Analysis failed, report error immediately
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
119
CreoManager.h
119
CreoManager.h
@ -22,6 +22,7 @@
|
||||
#include <vector>
|
||||
#include <map>
|
||||
#include <set>
|
||||
#include <unordered_set>
|
||||
#include <algorithm>
|
||||
#include <cmath>
|
||||
|
||||
@ -407,6 +408,12 @@ public:
|
||||
std::string GetModelFileSize(pfcModel_ptr model);
|
||||
std::string CalculateAssemblyTotalSize(pfcModel_ptr model);
|
||||
double ParseMBFromSizeString(const std::string& size_str);
|
||||
|
||||
// Component analysis helper methods
|
||||
std::string EvaluateDeletionSafety(const ComponentInfo& component);
|
||||
std::string GetComponentFileSize(wfcWComponentPath_ptr component_path);
|
||||
std::string GetModelTypeString(pfcModelType model_type);
|
||||
int CountChildComponents(wfcWComponentPath_ptr component_path);
|
||||
|
||||
private:
|
||||
CreoManager(); // 需要自定义构造函数来设置配置
|
||||
@ -509,47 +516,75 @@ private:
|
||||
// 真实几何分析方法
|
||||
bool AnalyzeFeatureGeometry(pfcFeature_ptr feature, pfcOutline3D_ptr globalOutline, double tolerance);
|
||||
|
||||
// New Shell Analysis core functions using real OTK APIs
|
||||
bool IsVisibleSurface(pfcSurface_ptr surface);
|
||||
bool IsShellFeature(pfcFeature_ptr feature, pfcSolid_ptr solid);
|
||||
bool IsComponentOccluded(pfcSolid_ptr component, pfcSolid_ptr assembly);
|
||||
// Multi-directional extreme value projection algorithm structures and functions
|
||||
struct Vector3D {
|
||||
double x, y, z;
|
||||
Vector3D() : x(0), y(0), z(0) {}
|
||||
Vector3D(double x_, double y_, double z_) : x(x_), y(y_), z(z_) {}
|
||||
|
||||
// Phase 2: Advanced interference detection APIs (2025-01-18)
|
||||
bool IsComponentOccludedAdvanced(pfcSolid_ptr targetComponent, pfcSolid_ptr assembly);
|
||||
double CalculateInterferenceRatio(pfcSolid_ptr target, pfcSolid_ptr occluder);
|
||||
double CalculateInterferenceVolume(pfcSolid_ptr target, pfcSolid_ptr occluder);
|
||||
pfcGlobalInterferences_ptr AnalyzeGlobalInterferences(pfcModel_ptr assembly);
|
||||
|
||||
|
||||
// 旧方法 (保留用于兼容)
|
||||
void TraverseAssemblyLevels(wfcWAssembly_ptr assembly,
|
||||
int current_level,
|
||||
const std::string& parent_path,
|
||||
std::vector<std::vector<ComponentInfo>>& hierarchy_levels,
|
||||
std::vector<ComponentInfo>& all_components);
|
||||
|
||||
void ClearStaticVisitedModels();
|
||||
|
||||
ComponentInfo CreateComponentInfo(wfcWComponentPath_ptr component_path,
|
||||
int level, const std::string& parent_path);
|
||||
|
||||
// 新增CREOSON风格的安全方法
|
||||
ComponentInfo CreateComponentInfoSafe(wfcWComponentPath_ptr component_path,
|
||||
int level, const std::string& parent_path);
|
||||
|
||||
bool CheckCanRecurseSafely(wfcWComponentPath_ptr component_path);
|
||||
|
||||
wfcWAssembly_ptr GetSubAssemblySafely(wfcWComponentPath_ptr component_path);
|
||||
|
||||
std::string GetComponentTypeSafe(wfcWComponentPath_ptr component_path);
|
||||
|
||||
std::string GenerateComponentPathId(wfcWComponentPath_ptr component_path);
|
||||
|
||||
std::string EvaluateDeletionSafety(const ComponentInfo& component);
|
||||
|
||||
std::string GetComponentFileSize(wfcWComponentPath_ptr component_path);
|
||||
|
||||
std::string GetModelTypeString(pfcModelType model_type);
|
||||
|
||||
int CountChildComponents(wfcWComponentPath_ptr component_path);
|
||||
Vector3D operator-(const Vector3D& other) const {
|
||||
return Vector3D(x - other.x, y - other.y, z - other.z);
|
||||
}
|
||||
|
||||
double dot(const Vector3D& other) const {
|
||||
return x * other.x + y * other.y + z * other.z;
|
||||
}
|
||||
|
||||
double length() const {
|
||||
return sqrt(x * x + y * y + z * z);
|
||||
}
|
||||
|
||||
Vector3D normalize() const {
|
||||
double len = length();
|
||||
if (len > 1e-10) {
|
||||
return Vector3D(x / len, y / len, z / len);
|
||||
}
|
||||
return Vector3D(0, 0, 1);
|
||||
}
|
||||
};
|
||||
|
||||
struct AABB {
|
||||
Vector3D minPoint, maxPoint;
|
||||
|
||||
AABB() : minPoint(1e9, 1e9, 1e9), maxPoint(-1e9, -1e9, -1e9) {}
|
||||
|
||||
AABB(const Vector3D& min_pt, const Vector3D& max_pt)
|
||||
: minPoint(min_pt), maxPoint(max_pt) {}
|
||||
|
||||
void expand(const Vector3D& point) {
|
||||
if (point.x < minPoint.x) minPoint.x = point.x;
|
||||
if (point.y < minPoint.y) minPoint.y = point.y;
|
||||
if (point.z < minPoint.z) minPoint.z = point.z;
|
||||
if (point.x > maxPoint.x) maxPoint.x = point.x;
|
||||
if (point.y > maxPoint.y) maxPoint.y = point.y;
|
||||
if (point.z > maxPoint.z) maxPoint.z = point.z;
|
||||
}
|
||||
|
||||
Vector3D diagonal() const {
|
||||
return maxPoint - minPoint;
|
||||
}
|
||||
|
||||
double getDiagonalLength() const {
|
||||
return diagonal().length();
|
||||
}
|
||||
};
|
||||
|
||||
struct ComponentItem {
|
||||
pfcComponentFeat_ptr component;
|
||||
pfcSolid_ptr solid;
|
||||
pfcComponentPath_ptr path;
|
||||
AABB worldAABB;
|
||||
int featureId;
|
||||
std::string name;
|
||||
};
|
||||
|
||||
// Multi-directional projection algorithm functions
|
||||
std::unordered_set<int> PerformMultiDirectionalProjectionAnalysis(pfcAssembly_ptr assembly);
|
||||
std::vector<ComponentItem> CollectAllComponents(pfcAssembly_ptr assembly);
|
||||
std::vector<Vector3D> SampleDirections(int count = 96);
|
||||
AABB TransformAABB(const AABB& localAABB, pfcTransform3D_ptr transform);
|
||||
pfcTransform3D_ptr GetComponentWorldTransform(pfcComponentPath_ptr path);
|
||||
double CalculateProjectionSupport(const AABB& aabb, const Vector3D& direction);
|
||||
Vector3D PfcPointToVector3D(pfcPoint3D_ptr point);
|
||||
AABB PfcOutlineToAABB(pfcOutline3D_ptr outline);
|
||||
};
|
||||
|
||||
Loading…
Reference in New Issue
Block a user