进行了剖面盒的研究和测试,整理改进方案
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<Compile Include="src\Utils\CoordinateConverter.cs" />
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<Compile Include="src\Utils\FloorDetector.cs" />
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<Compile Include="src\Utils\ModelItemAnalysisHelper.cs" />
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<Compile Include="src\Utils\SectionClipHelper.cs" />
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<Compile Include="src\Utils\GeometryHelper.cs" />
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<Compile Include="src\Utils\GeometryCacheManager.cs" />
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<Compile Include="src\Utils\LogManager.cs" />
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doc/working/section-clip-optimization-plan.md
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doc/working/section-clip-optimization-plan.md
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# 剖面盒优化碰撞检测方案
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## 概述
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通过 Navisworks 剖面盒功能,只处理路径周围的对象,大幅提升大型模型碰撞检测性能。
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## 预期性能提升
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| 模型规模 | 优化前 | 优化后 | 提升倍数 |
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|---------|--------|--------|---------|
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| 10层建筑(全模型) | 80秒 | ~1秒 | **80x** |
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| 单层检测 | 80秒 | ~0.5秒 | **160x** |
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## 核心思路
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1. **路径范围分析** → 计算路径的3D包围盒
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2. **设置剖面盒** → 只保留路径周围一定范围内的模型
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3. **裁剪缓存构建** → 遍历模型时快速跳过剖面外对象
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4. **ClashDetective检测** → 在裁剪后的空间内执行碰撞检测
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---
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## 技术实现
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### 1. 剖面盒辅助类 (`src/Utils/SectionClipHelper.cs`)
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提供剖面盒设置、查询、测试等基础功能。
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#### 关键实现:JSON 方式设置剖面盒
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> ⚠️ **重要发现**:Navisworks 的 `ClipPlaneSet` 对象在用户手工打开剖面功能后会变为**只读**,直接修改属性会导致 `NotSupportedException: Object is Read-Only` 错误。
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>
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> **解决方案**:使用 `View.TrySetClippingPlanes(string json)` 方法,通过 JSON 字符串设置剖面盒配置。
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```csharp
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/// <summary>
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/// 构建 ClipPlaneSet 的 JSON 字符串
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/// </summary>
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private static string BuildClipPlaneSetJson(BoundingBox3D box, bool enabled)
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{
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// Navisworks ClipPlaneSet JSON 格式:
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// {
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// "Type": "ClipPlaneSet",
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// "Version": 1,
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// "OrientedBox": {
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// "Type": "OrientedBox3D",
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// "Version": 1,
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// "Box": [[minX, minY, minZ], [maxX, maxY, maxZ]],
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// "Rotation": [0, 0, 0]
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// },
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// "Enabled": true/false
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// }
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return string.Format(
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"{{\"Type\":\"ClipPlaneSet\",\"Version\":1," +
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"\"OrientedBox\":{{\"Type\":\"OrientedBox3D\",\"Version\":1," +
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"\"Box\":[[{0},{1},{2}],[{3},{4},{5}]]," +
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"\"Rotation\":[0,0,0]}},\"Enabled\":{6}}}",
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box.Min.X.ToString("G17"),
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box.Min.Y.ToString("G17"),
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box.Min.Z.ToString("G17"),
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box.Max.X.ToString("G17"),
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box.Max.Y.ToString("G17"),
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box.Max.Z.ToString("G17"),
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enabled.ToString().ToLowerInvariant());
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}
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/// <summary>
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/// 应用剖面盒到视口
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/// </summary>
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private static void ApplyClipBox(BoundingBox3D box)
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{
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string json = BuildClipPlaneSetJson(box, true);
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var view = Application.ActiveDocument.ActiveView;
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// 使用 TrySetClippingPlanes 避免异常
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bool success = view.TrySetClippingPlanes(json);
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if (!success)
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{
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// 备选方案:使用 SetClippingPlanes(可能抛出异常)
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view.SetClippingPlanes(json);
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}
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}
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```
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#### API 方法列表
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| 方法 | 功能 | 参数 |
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|------|------|------|
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| `SetClipBoxByPath` | 根据路径点列表设置剖面盒 | `pathPoints`, `marginMeters`, `heightMarginMeters` |
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| `SetClipBoxByPoint` | 根据中心点设置剖面盒 | `centerPoint`, `rangeMeters`, `heightRangeMeters` |
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| `SetClipBoxByFloor` | 根据楼层设置剖面盒 | `floorItem`, `marginMeters` |
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| `ClearClipBox` | 清除剖面盒 | - |
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| `IsPointInClipBox` | 测试点是否在剖面盒内 | `point` |
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| `IntersectsClipBox` | 测试包围盒是否与剖面盒相交 | `box` |
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| `CountObjectsInClipBox` | 统计剖面盒内/外对象数量 | - |
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---
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### 2. 几何缓存优化 (`Core/Collision/ClashDetectiveIntegration.cs`)
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修改 `BuildNonHidddenGeometryItemsCache` 方法,支持剖面过滤:
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```csharp
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private void BuildNonHidddenGeometryItemsCache()
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{
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// ... 原有代码 ...
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// 获取当前剖面盒(如果启用)
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BoundingBox3D clipBox;
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bool hasClipBox = SectionClipHelper.TryGetCurrentClipBox(out clipBox);
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// 遍历模型树
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var stack = new Stack<ModelItem>();
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foreach (var model in _document.Models)
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{
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stack.Push(model.RootItem);
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}
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while (stack.Count > 0)
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{
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var item = stack.Pop();
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// 剖面盒过滤:如果对象在剖面盒外,整棵子树跳过
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if (hasClipBox)
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{
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BoundingBox3D itemBox = item.BoundingBox();
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if (!clipBox.Intersects(itemBox))
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{
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continue; // 剪枝:跳过此节点及其所有子节点
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}
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}
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// ... 原有缓存逻辑 ...
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}
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}
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```
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---
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### 3. 通道缓存优化
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修改 `BuildChannelObjectsCache` 方法:
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```csharp
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private void BuildChannelObjectsCache()
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{
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// ... 原有代码 ...
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// 获取当前剖面盒
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BoundingBox3D clipBox;
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bool hasClipBox = SectionClipHelper.TryGetCurrentClipBox(out clipBox);
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foreach (var channel in channels)
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{
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// 剖面盒过滤
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if (hasClipBox)
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{
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BoundingBox3D channelBox = channel.BoundingBox();
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if (!clipBox.Intersects(channelBox))
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{
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continue; // 跳过剖面外的通道
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}
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}
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// ... 原有通道缓存逻辑 ...
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}
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}
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```
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---
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### 4. 空间索引优化(可选)
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`SpatialIndexManager` 利用剖面盒二次过滤:
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```csharp
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public IEnumerable<ModelItem> QueryVisibleItems()
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{
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// 先查询空间索引
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var candidates = _spatialIndex.Query(_viewFrustum);
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// 再用剖面盒过滤
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return candidates.Where(item =>
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!SectionClipHelper.IsClipBoxEnabled ||
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SectionClipHelper.IntersectsClipBox(item.BoundingBox()));
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}
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```
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---
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## API 使用说明
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### 设置剖面盒
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```csharp
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// 根据路径设置(推荐用于路径规划场景)
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SectionClipHelper.SetClipBoxByPath(
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pathPoints,
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marginMeters: 3.0, // 路径周围水平边距
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heightMarginMeters: 2.0 // 上下高度边距
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);
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// 根据点设置(推荐用于吊装路径单点场景)
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SectionClipHelper.SetClipBoxByPoint(
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centerPoint,
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rangeMeters: 10.0, // 水平范围
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heightRangeMeters: 5.0 // 高度范围
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);
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// 根据楼层设置(推荐用于单层检测)
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SectionClipHelper.SetClipBoxByFloor(
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floorItem,
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marginMeters: 1.0 // 楼层周围边距
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);
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// 清除剖面盒(恢复全模型显示)
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SectionClipHelper.ClearClipBox();
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```
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### 测试点/包围盒
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```csharp
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// 测试点是否在剖面内
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bool inside = SectionClipHelper.IsPointInClipBox(point);
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// 测试包围盒是否与剖面相交
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bool intersects = SectionClipHelper.IntersectsClipBox(box);
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// 获取当前剖面盒
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BoundingBox3D clipBox;
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if (SectionClipHelper.TryGetCurrentClipBox(out clipBox))
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{
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// 使用 clipBox 进行自定义过滤
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}
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```
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### 统计对象数量(调试用)
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```csharp
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// 输出剖面盒内/外对象数量到日志
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SectionClipHelper.CountObjectsInClipBox(
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out int total,
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out int inside,
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out int outside);
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LogManager.Info($"过滤率: {(outside * 100.0 / total):F1}%");
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```
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---
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## 测试结果
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### 基础功能测试(✅ 已完成)
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**测试场景**:10层建筑模型,在模型中心设置 10m x 10m x 5m 剖面盒
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| 指标 | 数值 | 说明 |
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|------|------|------|
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| 总对象数 | 848 | 模型总对象 |
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| 剖面盒内 | 10 | 需要检测的对象 |
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| 剖面盒外 | 838 | 可跳过的对象 |
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| **过滤率** | **98.8%** | 性能提升关键指标 |
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**点检测测试**:
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- 中心点 (-108.50, -2.94, 27.24): `True` ✅
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- 远点 (-8.50, 97.06, 127.24): `False` ✅
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### 性能测试计划
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| 测试项 | 状态 | 预期结果 |
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|--------|------|----------|
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| 10层建筑全模型 | ⏳ 待测 | 80秒 → ~1秒 (80x) |
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| 单层检测 | ⏳ 待测 | 80秒 → ~0.5秒 (160x) |
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| 内存占用分析 | ⏳ 待测 | 无显著增加 |
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---
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## 已知问题与解决方案
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### 问题1:Object is Read-Only 错误
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**现象**:用户手工打开剖面功能后,调用 `clipPlanes.Box = box` 抛出异常。
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**原因**:Navisworks 的 `ClipPlaneSet` 对象在手工操作后变为只读。
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**解决**:使用 JSON 字符串方式设置剖面盒(见上文技术实现)。
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### 问题2:路径跨越多层时优化效果降低
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**现象**:垂直跨越多个楼层的长路径,剖面盒范围大,过滤率下降。
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**建议**:
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1. 分段设置剖面盒(每层单独检测)
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2. 使用多个剖面盒(Navisworks 支持最多 6 个剖面)
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3. 动态调整剖面盒大小
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### 问题3:坐标系单位转换
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**注意**:`SectionClipHelper` 的输入参数使用**米**为单位,内部自动转换为模型单位。
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```csharp
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// 正确:使用米作为输入
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SectionClipHelper.SetClipBoxByPoint(centerPoint, rangeMeters: 10.0);
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// 内部转换逻辑
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double factor = UnitsConverter.GetMetersToUnitsConversionFactor(document.Units);
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double rangeInModelUnits = rangeMeters * factor;
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```
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---
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## 文件变更清单
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### 新增文件
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| 文件路径 | 说明 |
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|----------|------|
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| `src/Utils/SectionClipHelper.cs` | 剖面盒辅助类(JSON 方式设置) |
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### 修改文件
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| 文件路径 | 修改内容 |
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|----------|----------|
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| `src/Core/Collision/ClashDetectiveIntegration.cs` | 添加剖面过滤支持到缓存构建 |
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| `src/UI/WPF/Views/SystemManagementView.xaml` | 添加剖面盒测试按钮 |
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| `src/UI/WPF/ViewModels/SystemManagementViewModel.cs` | 添加 `ExecuteTestSectionClip()` 方法 |
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---
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## 集成到碰撞检测流程
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### 步骤1:路径规划后自动设置剖面盒
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```csharp
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// 在 PathPlanningManager 中
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public void GeneratePath(PathRequest request)
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{
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// ... 路径计算 ...
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// 自动设置剖面盒
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if (pathPoints != null && pathPoints.Count > 0)
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{
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SectionClipHelper.SetClipBoxByPath(
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pathPoints,
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marginMeters: 3.0, // 可配置
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heightMarginMeters: 2.0);
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}
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// ... 后续处理 ...
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}
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```
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### 步骤2:碰撞检测前应用过滤
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```csharp
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// 在 ClashDetectiveIntegration 中
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public async Task<CollisionResult> PerformCollisionDetectionAsync()
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{
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// 1. 构建缓存时自动应用剖面过滤
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BuildNonHidddenGeometryItemsCache();
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// 2. 执行检测(只处理剖面内对象)
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var result = await RunClashDetectionAsync();
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// 3. 可选:检测完成后清除剖面盒
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// SectionClipHelper.ClearClipBox();
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return result;
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}
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```
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### 步骤3:UI 交互控制
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```xml
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<!-- 在路径编辑界面添加剖面盒控制 -->
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<CheckBox Content="启用剖面盒优化" IsChecked="{Binding EnableSectionClip}" />
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<Button Content="设置剖面盒到当前路径" Command="{Binding SetClipBoxCommand}" />
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<Button Content="清除剖面盒" Command="{Binding ClearClipBoxCommand}" />
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```
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---
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## 后续优化方向
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1. **多剖面盒支持**:利用 Navisworks 支持 6 个剖面的特性,处理复杂路径
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2. **动态剖面盒**:动画播放时动态调整剖面盒位置
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3. **智能边距计算**:根据车辆尺寸自动计算合适的边距
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4. **剖面盒可视化**:在 3D 视图中显示剖面盒边界
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---
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## 参考文档
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- Navisworks API: `doc/navisworks_api/NET/documentation/NetAPIHtml/html/T_Autodesk_Navisworks_Api_ClipPlaneSet.htm`
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- `View.SetClippingPlanes` - JSON 方式设置剖面盒
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- `View.TrySetClippingPlanes` - 安全设置剖面盒(返回 bool)
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- `ClipPlaneSet` 属性(只读场景下慎用)
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@ -3,6 +3,7 @@ using System.Collections.ObjectModel;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Input;
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using Autodesk.Navisworks.Api;
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using NavisworksTransport.UI.WPF.Collections;
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using NavisworksTransport.Core;
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using NavisworksTransport.Core.Config;
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@ -171,6 +172,7 @@ namespace NavisworksTransport.UI.WPF.ViewModels
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public ICommand TestVoxelPathFindingCommand { get; private set; }
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public ICommand ReadTransformTestCommand { get; private set; }
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public ICommand CoordinateSystemExplorerCommand { get; private set; }
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public ICommand TestSectionClipCommand { get; private set; }
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// 坐标系设置
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public ObservableCollection<string> CoordinateSystemOptions { get; private set; }
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@ -308,6 +310,7 @@ namespace NavisworksTransport.UI.WPF.ViewModels
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TestVoxelPathFindingCommand = new RelayCommand(() => ExecuteTestVoxelPathFinding());
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ReadTransformTestCommand = new RelayCommand(() => ExecuteReadTransformTest());
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CoordinateSystemExplorerCommand = new RelayCommand(() => ExecuteCoordinateSystemExplorer());
|
||||
TestSectionClipCommand = new RelayCommand(() => ExecuteTestSectionClip());
|
||||
|
||||
// 初始化坐标系选项
|
||||
CoordinateSystemOptions = new ObservableCollection<string> { "AutoDetect", "ZUp", "YUp" };
|
||||
@ -1819,6 +1822,157 @@ namespace NavisworksTransport.UI.WPF.ViewModels
|
||||
|
||||
#endregion
|
||||
|
||||
#region 剖面盒测试
|
||||
|
||||
/// <summary>
|
||||
/// 执行剖面盒测试命令
|
||||
/// </summary>
|
||||
private void ExecuteTestSectionClip()
|
||||
{
|
||||
SafeExecute(() =>
|
||||
{
|
||||
try
|
||||
{
|
||||
UpdateMainStatus("正在执行剖面盒测试...");
|
||||
LogManager.Info("开始剖面盒功能测试");
|
||||
|
||||
var doc = Autodesk.Navisworks.Api.Application.ActiveDocument;
|
||||
if (doc == null || doc.IsClear)
|
||||
{
|
||||
System.Windows.MessageBox.Show(
|
||||
"没有活动的文档!请先打开一个模型。",
|
||||
"错误",
|
||||
System.Windows.MessageBoxButton.OK,
|
||||
System.Windows.MessageBoxImage.Error);
|
||||
UpdateMainStatus("剖面盒测试失败:无活动文档");
|
||||
return;
|
||||
}
|
||||
|
||||
var sb = new StringBuilder();
|
||||
sb.AppendLine("=== 剖面盒功能测试 ===\n");
|
||||
|
||||
// 1. 测试前统计
|
||||
sb.AppendLine("【1. 测试前状态】");
|
||||
sb.AppendLine($"剖面盒当前状态: {(SectionClipHelper.IsClipBoxEnabled ? "已启用" : "未启用")}");
|
||||
|
||||
BoundingBox3D currentBox;
|
||||
if (SectionClipHelper.TryGetCurrentClipBox(out currentBox))
|
||||
{
|
||||
sb.AppendLine($"当前剖面盒范围:");
|
||||
sb.AppendLine($" X: [{currentBox.Min.X:F2}, {currentBox.Max.X:F2}]");
|
||||
sb.AppendLine($" Y: [{currentBox.Min.Y:F2}, {currentBox.Max.Y:F2}]");
|
||||
sb.AppendLine($" Z: [{currentBox.Min.Z:F2}, {currentBox.Max.Z:F2}]");
|
||||
|
||||
// 先清除,重新测试
|
||||
SectionClipHelper.ClearClipBox();
|
||||
sb.AppendLine("已清除现有剖面盒");
|
||||
}
|
||||
sb.AppendLine();
|
||||
|
||||
// 2. 获取当前选择或模型中心
|
||||
sb.AppendLine("【2. 设置测试剖面盒】");
|
||||
var selection = doc.CurrentSelection.SelectedItems;
|
||||
Point3D centerPoint;
|
||||
|
||||
if (selection.Count > 0)
|
||||
{
|
||||
// 使用选中对象的中心
|
||||
var selectedItem = selection[0];
|
||||
BoundingBox3D bounds1 = selectedItem.BoundingBox();
|
||||
centerPoint = bounds1.Center;
|
||||
sb.AppendLine($"使用选中对象中心: ({centerPoint.X:F2}, {centerPoint.Y:F2}, {centerPoint.Z:F2})");
|
||||
sb.AppendLine($"选中对象: {selectedItem.DisplayName}");
|
||||
}
|
||||
else
|
||||
{
|
||||
// 使用模型整体中心
|
||||
var rootItem = doc.Models[0].RootItem;
|
||||
BoundingBox3D bounds2 = rootItem.BoundingBox();
|
||||
centerPoint = bounds2.Center;
|
||||
sb.AppendLine($"使用模型中心: ({centerPoint.X:F2}, {centerPoint.Y:F2}, {centerPoint.Z:F2})");
|
||||
}
|
||||
|
||||
// 设置剖面盒(10米 x 10米 x 5米)
|
||||
bool success = SectionClipHelper.SetClipBoxByPoint(centerPoint,
|
||||
rangeMeters: 10.0, heightRangeMeters: 5.0);
|
||||
|
||||
if (!success)
|
||||
{
|
||||
sb.AppendLine("❌ 剖面盒设置失败!");
|
||||
System.Windows.MessageBox.Show(sb.ToString(), "剖面盒测试",
|
||||
System.Windows.MessageBoxButton.OK, System.Windows.MessageBoxImage.Error);
|
||||
return;
|
||||
}
|
||||
|
||||
sb.AppendLine("✅ 剖面盒设置成功(10m x 10m x 5m)");
|
||||
sb.AppendLine();
|
||||
|
||||
// 3. 统计对象数量
|
||||
sb.AppendLine("【3. 对象数量统计】");
|
||||
int totalCount, insideCount, outsideCount;
|
||||
SectionClipHelper.CountObjectsInClipBox(out totalCount, out insideCount, out outsideCount);
|
||||
|
||||
sb.AppendLine($"总对象数: {totalCount}");
|
||||
sb.AppendLine($"剖面盒内: {insideCount}");
|
||||
sb.AppendLine($"剖面盒外: {outsideCount}");
|
||||
if (totalCount > 0)
|
||||
{
|
||||
double filterRate = (double)outsideCount / totalCount * 100;
|
||||
sb.AppendLine($"过滤率: {filterRate:F1}%");
|
||||
}
|
||||
sb.AppendLine();
|
||||
|
||||
// 4. 测试相交检测
|
||||
sb.AppendLine("【4. 相交检测测试】");
|
||||
SectionClipHelper.TestIntersection();
|
||||
sb.AppendLine("相交检测测试完成(查看日志详情)");
|
||||
sb.AppendLine();
|
||||
|
||||
// 5. 测试点检测
|
||||
sb.AppendLine("【5. 点检测测试】");
|
||||
var testPointInside = new Point3D(centerPoint.X, centerPoint.Y, centerPoint.Z);
|
||||
var testPointOutside = new Point3D(centerPoint.X + 100, centerPoint.Y + 100, centerPoint.Z + 100);
|
||||
|
||||
bool isInside1 = SectionClipHelper.IsPointInClipBox(testPointInside);
|
||||
bool isInside2 = SectionClipHelper.IsPointInClipBox(testPointOutside);
|
||||
|
||||
sb.AppendLine($"中心点 ({testPointInside.X:F2}, {testPointInside.Y:F2}, {testPointInside.Z:F2}): {isInside1} (应为 True)");
|
||||
sb.AppendLine($"远点 ({testPointOutside.X:F2}, {testPointOutside.Y:F2}, {testPointOutside.Z:F2}): {isInside2} (应为 False)");
|
||||
|
||||
if (isInside1 && !isInside2)
|
||||
{
|
||||
sb.AppendLine("✅ 点检测测试通过!");
|
||||
}
|
||||
else
|
||||
{
|
||||
sb.AppendLine("❌ 点检测测试失败!");
|
||||
}
|
||||
sb.AppendLine();
|
||||
|
||||
// 6. 保持剖面盒或清除(询问用户)
|
||||
sb.AppendLine("【6. 测试完成】");
|
||||
sb.AppendLine("剖面盒已保留,可在视图中查看效果。");
|
||||
sb.AppendLine("使用 SystemManagementViewModel.ClearClipBox() 清除。");
|
||||
|
||||
LogManager.Info("剖面盒功能测试完成");
|
||||
UpdateMainStatus("剖面盒测试完成");
|
||||
|
||||
// 显示结果
|
||||
System.Windows.MessageBox.Show(sb.ToString(), "剖面盒功能测试",
|
||||
System.Windows.MessageBoxButton.OK, System.Windows.MessageBoxImage.Information);
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
LogManager.Error($"剖面盒测试失败: {ex.Message}", ex);
|
||||
System.Windows.MessageBox.Show($"测试失败: {ex.Message}", "错误",
|
||||
System.Windows.MessageBoxButton.OK, System.Windows.MessageBoxImage.Error);
|
||||
UpdateMainStatus("剖面盒测试失败");
|
||||
}
|
||||
}, "剖面盒测试");
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region 清理资源和IDisposable实现
|
||||
|
||||
/// <summary>
|
||||
|
||||
@ -292,6 +292,15 @@ NavisworksTransport 系统管理页签视图 - 采用与其他页签一致的Nav
|
||||
Style="{StaticResource ActionButtonStyle}"
|
||||
ToolTip="探索当前文档的坐标系信息(用于适配Y-up坐标系模型)"/>
|
||||
</StackPanel>
|
||||
|
||||
<!-- 剖面盒优化测试 -->
|
||||
<StackPanel Orientation="Horizontal" Margin="0,5,0,5">
|
||||
<!-- 测试剖面盒按钮 -->
|
||||
<Button Content="测试剖面盒"
|
||||
Command="{Binding TestSectionClipCommand}"
|
||||
Style="{StaticResource ActionButtonStyle}"
|
||||
ToolTip="测试剖面盒功能:设置剖面、统计对象、测试过滤"/>
|
||||
</StackPanel>
|
||||
</StackPanel>
|
||||
</Border>
|
||||
</StackPanel>
|
||||
|
||||
427
src/Utils/SectionClipHelper.cs
Normal file
427
src/Utils/SectionClipHelper.cs
Normal file
@ -0,0 +1,427 @@
|
||||
using System;
|
||||
using System.Collections.Generic;
|
||||
using Autodesk.Navisworks.Api;
|
||||
|
||||
namespace NavisworksTransport.Utils
|
||||
{
|
||||
/// <summary>
|
||||
/// 剖面盒辅助类 - 用于优化碰撞检测性能
|
||||
/// 通过设置视口剖面盒,只处理路径周围的对象
|
||||
///
|
||||
/// 注意:Navisworks 的 ClipPlaneSet API 需要使用 JSON 字符串方式设置
|
||||
/// 直接修改 ClipPlaneSet 对象的属性在手工打开剖面功能后会导致 "Object is Read-Only" 错误
|
||||
/// </summary>
|
||||
public static class SectionClipHelper
|
||||
{
|
||||
// 默认边距(米):路径周围保留的空间
|
||||
private const double DEFAULT_MARGIN_METERS = 2.0;
|
||||
|
||||
// 默认高度范围(米):上下各延伸的高度
|
||||
private const double DEFAULT_HEIGHT_MARGIN_METERS = 1.0;
|
||||
|
||||
/// <summary>
|
||||
/// 根据路径点列表设置剖面盒
|
||||
/// </summary>
|
||||
/// <param name="pathPoints">路径点列表</param>
|
||||
/// <param name="marginMeters">水平边距(米)</param>
|
||||
/// <param name="heightMarginMeters">高度边距(米)</param>
|
||||
/// <returns>是否成功设置</returns>
|
||||
public static bool SetClipBoxByPath(List<Point3D> pathPoints,
|
||||
double marginMeters = DEFAULT_MARGIN_METERS,
|
||||
double heightMarginMeters = DEFAULT_HEIGHT_MARGIN_METERS)
|
||||
{
|
||||
try
|
||||
{
|
||||
if (pathPoints == null || pathPoints.Count == 0)
|
||||
{
|
||||
LogManager.Warning("[剖面盒] 路径点为空,无法设置剖面盒");
|
||||
return false;
|
||||
}
|
||||
|
||||
// 计算路径的包围盒
|
||||
var pathBounds = CalculatePathBoundingBox(pathPoints);
|
||||
|
||||
// 扩展边距
|
||||
var clipBox = ExpandBoundingBox(pathBounds, marginMeters, heightMarginMeters);
|
||||
|
||||
// 应用到视口
|
||||
ApplyClipBox(clipBox);
|
||||
|
||||
LogManager.Info($"[剖面盒] 已设置 - 范围: X[{clipBox.Min.X:F2}, {clipBox.Max.X:F2}], " +
|
||||
$"Y[{clipBox.Min.Y:F2}, {clipBox.Max.Y:F2}], Z[{clipBox.Min.Z:F2}, {clipBox.Max.Z:F2}]");
|
||||
|
||||
return true;
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
LogManager.Error($"[剖面盒] 设置失败: {ex.Message}");
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 根据单个点设置剖面盒(用于吊装路径等单点场景)
|
||||
/// </summary>
|
||||
/// <param name="centerPoint">中心点</param>
|
||||
/// <param name="rangeMeters">范围(米)</param>
|
||||
/// <param name="heightRangeMeters">高度范围(米)</param>
|
||||
/// <returns>是否成功设置</returns>
|
||||
public static bool SetClipBoxByPoint(Point3D centerPoint,
|
||||
double rangeMeters = 10.0,
|
||||
double heightRangeMeters = 5.0)
|
||||
{
|
||||
try
|
||||
{
|
||||
var min = new Point3D(
|
||||
centerPoint.X - rangeMeters,
|
||||
centerPoint.Y - rangeMeters,
|
||||
centerPoint.Z - heightRangeMeters);
|
||||
var max = new Point3D(
|
||||
centerPoint.X + rangeMeters,
|
||||
centerPoint.Y + rangeMeters,
|
||||
centerPoint.Z + heightRangeMeters);
|
||||
|
||||
var clipBox = new BoundingBox3D(min, max);
|
||||
ApplyClipBox(clipBox);
|
||||
|
||||
LogManager.Info($"[剖面盒] 已设置 - 中心: ({centerPoint.X:F2}, {centerPoint.Y:F2}, {centerPoint.Z:F2}), " +
|
||||
$"范围: {rangeMeters}m x {rangeMeters}m x {heightRangeMeters}m");
|
||||
|
||||
return true;
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
LogManager.Error($"[剖面盒] 设置失败: {ex.Message}");
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 根据楼层设置剖面盒
|
||||
/// </summary>
|
||||
/// <param name="floorItem">楼层模型项</param>
|
||||
/// <param name="marginMeters">边距(米)</param>
|
||||
/// <returns>是否成功设置</returns>
|
||||
public static bool SetClipBoxByFloor(ModelItem floorItem, double marginMeters = 1.0)
|
||||
{
|
||||
try
|
||||
{
|
||||
if (floorItem == null)
|
||||
{
|
||||
LogManager.Warning("[剖面盒] 楼层对象为空");
|
||||
return false;
|
||||
}
|
||||
|
||||
BoundingBox3D floorBounds = floorItem.BoundingBox();
|
||||
BoundingBox3D clipBox = ExpandBoundingBox(floorBounds, marginMeters, marginMeters);
|
||||
ApplyClipBox(clipBox);
|
||||
|
||||
LogManager.Info($"[剖面盒] 已设置到楼层: {floorItem.DisplayName}");
|
||||
return true;
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
LogManager.Error($"[剖面盒] 设置失败: {ex.Message}");
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 清除剖面盒(显示全部模型)
|
||||
/// 使用 JSON 字符串方式设置 Enabled = false
|
||||
/// </summary>
|
||||
public static void ClearClipBox()
|
||||
{
|
||||
try
|
||||
{
|
||||
// 构建禁用剖面的 JSON
|
||||
string json = BuildClipPlaneSetJson(
|
||||
new BoundingBox3D(new Point3D(0, 0, 0), new Point3D(0, 0, 0)),
|
||||
false);
|
||||
|
||||
var view = Application.ActiveDocument.ActiveView;
|
||||
view.TrySetClippingPlanes(json);
|
||||
|
||||
LogManager.Info("[剖面盒] 已清除");
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
LogManager.Error($"[剖面盒] 清除失败: {ex.Message}");
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 检查剖面盒是否已启用
|
||||
/// </summary>
|
||||
public static bool IsClipBoxEnabled
|
||||
{
|
||||
get
|
||||
{
|
||||
try
|
||||
{
|
||||
return Application.ActiveDocument.CurrentViewpoint.Value.ClipPlanes.Enabled;
|
||||
}
|
||||
catch
|
||||
{
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 获取当前剖面盒
|
||||
/// </summary>
|
||||
/// <param name="clipBox">输出剖面盒</param>
|
||||
/// <returns>是否成功获取</returns>
|
||||
public static bool TryGetCurrentClipBox(out BoundingBox3D clipBox)
|
||||
{
|
||||
clipBox = new BoundingBox3D();
|
||||
try
|
||||
{
|
||||
var clipPlanes = Application.ActiveDocument.CurrentViewpoint.Value.ClipPlanes;
|
||||
if (!clipPlanes.Enabled || clipPlanes.Mode != ClipPlaneSetMode.Box)
|
||||
return false;
|
||||
|
||||
clipBox = clipPlanes.Box;
|
||||
return true;
|
||||
}
|
||||
catch
|
||||
{
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 测试点是否在剖面盒内
|
||||
/// </summary>
|
||||
public static bool IsPointInClipBox(Point3D point)
|
||||
{
|
||||
if (!TryGetCurrentClipBox(out var clipBox)) return true; // 无剖面盒时默认全部包含
|
||||
|
||||
return clipBox.Contains(point);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 测试包围盒是否与剖面盒相交
|
||||
/// </summary>
|
||||
public static bool IntersectsClipBox(BoundingBox3D box)
|
||||
{
|
||||
if (!TryGetCurrentClipBox(out var clipBox)) return true; // 无剖面盒时默认全部相交
|
||||
|
||||
return clipBox.Intersects(box);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 统计剖面盒内/外的对象数量(用于测试)
|
||||
/// </summary>
|
||||
/// <param name="totalCount">总对象数</param>
|
||||
/// <param name="insideCount">在剖面盒内的对象数</param>
|
||||
/// <param name="outsideCount">在剖面盒外的对象数</param>
|
||||
public static void CountObjectsInClipBox(out int totalCount, out int insideCount, out int outsideCount)
|
||||
{
|
||||
totalCount = 0;
|
||||
insideCount = 0;
|
||||
outsideCount = 0;
|
||||
|
||||
try
|
||||
{
|
||||
if (!TryGetCurrentClipBox(out var clipBox))
|
||||
{
|
||||
LogManager.Warning("[剖面盒统计] 剖面盒未启用");
|
||||
return;
|
||||
}
|
||||
|
||||
var stack = new Stack<ModelItem>();
|
||||
foreach (var model in Application.ActiveDocument.Models)
|
||||
{
|
||||
stack.Push(model.RootItem);
|
||||
}
|
||||
|
||||
while (stack.Count > 0)
|
||||
{
|
||||
var item = stack.Pop();
|
||||
totalCount++;
|
||||
|
||||
// 测试包围盒是否相交
|
||||
BoundingBox3D itemBox = item.BoundingBox();
|
||||
if (clipBox.Intersects(itemBox))
|
||||
{
|
||||
insideCount++;
|
||||
}
|
||||
else
|
||||
{
|
||||
outsideCount++;
|
||||
continue; // 跳过子节点(剪枝)
|
||||
}
|
||||
|
||||
// 继续遍历子节点
|
||||
foreach (var child in item.Children)
|
||||
{
|
||||
stack.Push(child);
|
||||
}
|
||||
}
|
||||
|
||||
LogManager.Info($"[剖面盒统计] 总数: {totalCount}, 盒内: {insideCount}, 盒外: {outsideCount}, " +
|
||||
$"过滤率: {(outsideCount * 100.0 / totalCount):F1}%");
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
LogManager.Error($"[剖面盒统计] 失败: {ex.Message}");
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 测试包围盒相交检测(用于验证)
|
||||
/// </summary>
|
||||
public static void TestIntersection()
|
||||
{
|
||||
try
|
||||
{
|
||||
if (!TryGetCurrentClipBox(out var clipBox))
|
||||
{
|
||||
LogManager.Warning("[剖面盒测试] 请先设置剖面盒");
|
||||
return;
|
||||
}
|
||||
|
||||
// 测试点
|
||||
var center = clipBox.Center;
|
||||
var testPointInside = new Point3D(center.X, center.Y, center.Z);
|
||||
var testPointOutside = new Point3D(
|
||||
center.X + 1000,
|
||||
center.Y + 1000,
|
||||
center.Z + 1000);
|
||||
|
||||
bool inside1 = IsPointInClipBox(testPointInside);
|
||||
bool inside2 = IsPointInClipBox(testPointOutside);
|
||||
|
||||
LogManager.Info($"[剖面盒测试] 中心点: {inside1} (应为 True)");
|
||||
LogManager.Info($"[剖面盒测试] 远点: {inside2} (应为 False)");
|
||||
|
||||
// 测试包围盒
|
||||
var boxInside = new BoundingBox3D(
|
||||
new Point3D(center.X - 1, center.Y - 1, center.Z - 1),
|
||||
new Point3D(center.X + 1, center.Y + 1, center.Z + 1));
|
||||
var boxOutside = new BoundingBox3D(
|
||||
new Point3D(center.X + 100, center.Y + 100, center.Z + 100),
|
||||
new Point3D(center.X + 200, center.Y + 200, center.Z + 200));
|
||||
|
||||
bool intersect1 = IntersectsClipBox(boxInside);
|
||||
bool intersect2 = IntersectsClipBox(boxOutside);
|
||||
|
||||
LogManager.Info($"[剖面盒测试] 内部包围盒相交: {intersect1} (应为 True)");
|
||||
LogManager.Info($"[剖面盒测试] 外部包围盒相交: {intersect2} (应为 False)");
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
LogManager.Error($"[剖面盒测试] 失败: {ex.Message}");
|
||||
}
|
||||
}
|
||||
|
||||
#region 私有方法
|
||||
|
||||
/// <summary>
|
||||
/// 计算路径点的包围盒
|
||||
/// </summary>
|
||||
private static BoundingBox3D CalculatePathBoundingBox(List<Point3D> points)
|
||||
{
|
||||
if (points.Count == 1)
|
||||
{
|
||||
return new BoundingBox3D(points[0], points[0]);
|
||||
}
|
||||
|
||||
double minX = double.MaxValue, minY = double.MaxValue, minZ = double.MaxValue;
|
||||
double maxX = double.MinValue, maxY = double.MinValue, maxZ = double.MinValue;
|
||||
|
||||
foreach (var p in points)
|
||||
{
|
||||
minX = Math.Min(minX, p.X);
|
||||
minY = Math.Min(minY, p.Y);
|
||||
minZ = Math.Min(minZ, p.Z);
|
||||
maxX = Math.Max(maxX, p.X);
|
||||
maxY = Math.Max(maxY, p.Y);
|
||||
maxZ = Math.Max(maxZ, p.Z);
|
||||
}
|
||||
|
||||
return new BoundingBox3D(
|
||||
new Point3D(minX, minY, minZ),
|
||||
new Point3D(maxX, maxY, maxZ));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 扩展包围盒
|
||||
/// </summary>
|
||||
private static BoundingBox3D ExpandBoundingBox(BoundingBox3D box,
|
||||
double horizontalMargin, double verticalMargin)
|
||||
{
|
||||
var min = new Point3D(
|
||||
box.Min.X - horizontalMargin,
|
||||
box.Min.Y - horizontalMargin,
|
||||
box.Min.Z - verticalMargin);
|
||||
var max = new Point3D(
|
||||
box.Max.X + horizontalMargin,
|
||||
box.Max.Y + horizontalMargin,
|
||||
box.Max.Z + verticalMargin);
|
||||
|
||||
return new BoundingBox3D(min, max);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 应用剖面盒到视口
|
||||
/// 使用 JSON 字符串方式设置,避免 "Object is Read-Only" 错误
|
||||
/// </summary>
|
||||
private static void ApplyClipBox(BoundingBox3D box)
|
||||
{
|
||||
// 构建 JSON 格式的 ClipPlaneSet
|
||||
string json = BuildClipPlaneSetJson(box, true);
|
||||
|
||||
// 使用 View.SetClippingPlanes 方法设置
|
||||
var view = Application.ActiveDocument.ActiveView;
|
||||
|
||||
// TrySetClippingPlanes 返回 bool 表示是否成功,不会抛出异常
|
||||
bool success = view.TrySetClippingPlanes(json);
|
||||
|
||||
if (!success)
|
||||
{
|
||||
// 如果 Try 方法失败,尝试使用 SetClippingPlanes(会抛出异常)
|
||||
view.SetClippingPlanes(json);
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 构建 ClipPlaneSet 的 JSON 字符串
|
||||
/// </summary>
|
||||
/// <param name="box">包围盒</param>
|
||||
/// <param name="enabled">是否启用</param>
|
||||
/// <returns>JSON 字符串</returns>
|
||||
private static string BuildClipPlaneSetJson(BoundingBox3D box, bool enabled)
|
||||
{
|
||||
// Navisworks ClipPlaneSet JSON 格式:
|
||||
// {
|
||||
// "Type": "ClipPlaneSet",
|
||||
// "Version": 1,
|
||||
// "OrientedBox": {
|
||||
// "Type": "OrientedBox3D",
|
||||
// "Version": 1,
|
||||
// "Box": [[minX, minY, minZ], [maxX, maxY, maxZ]],
|
||||
// "Rotation": [0, 0, 0]
|
||||
// },
|
||||
// "Enabled": true/false
|
||||
// }
|
||||
|
||||
return string.Format(
|
||||
"{{\"Type\":\"ClipPlaneSet\",\"Version\":1," +
|
||||
"\"OrientedBox\":{{\"Type\":\"OrientedBox3D\",\"Version\":1," +
|
||||
"\"Box\":[[{0},{1},{2}],[{3},{4},{5}]]," +
|
||||
"\"Rotation\":[0,0,0]}},\"Enabled\":{6}}}",
|
||||
box.Min.X.ToString("G17"),
|
||||
box.Min.Y.ToString("G17"),
|
||||
box.Min.Z.ToString("G17"),
|
||||
box.Max.X.ToString("G17"),
|
||||
box.Max.Y.ToString("G17"),
|
||||
box.Max.Z.ToString("G17"),
|
||||
enabled.ToString().ToLowerInvariant());
|
||||
}
|
||||
|
||||
#endregion
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user