- blender/generate_nantaizi.py → blender/generate_scene.py(去硬编码路径, --geojson 改为可选,--office-overrides 替代硬编码 way ID) - blender/export_cesium.py CLI 参数改为必传,修复隐藏物体导出崩溃 - blender/README.md 重写为中文通用文档 - config/default.json 路径改为占位符,template.json 新增 blender 配置块 - scripts/build-osm2streets-qgis.js 新增 layerPrefix 配置驱动 QGIS 图层名 - package.json name → osm-gis-pipeline - README.md 重写并增加实际运行示例
181 lines
4.4 KiB
Markdown
181 lines
4.4 KiB
Markdown
# OSM GIS Pipeline
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把 OSM XML 转为 QGIS 工程(osm2streets 风格道路)和可选的 Blender 3D 场景。
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## 环境
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需要:
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- macOS QGIS:默认 `/Applications/QGIS.app`
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- Node.js / npm
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- Blender(可选,用于 3D 场景生成)
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首次使用:
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```bash
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cd /Users/que01/osm2streets-qgis-workflow
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npm install
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```
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## QGIS 管线(强依赖 osm2streets)
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使用默认配置:
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```bash
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cd /Users/que01/osm2streets-qgis-workflow
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npm run build
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```
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使用指定配置:
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```bash
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node scripts/build-osm2streets-qgis.js --config /path/to/config.json
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```
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命令行参数可以覆盖配置文件:
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```bash
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node scripts/build-osm2streets-qgis.js \
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--input /path/to/osm.xml \
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--out-dir /path/to/out \
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--gpkg /path/to/output.gpkg \
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--project /path/to/output.qgz \
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--preview /path/to/output_preview.png
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```
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创建新区域配置可以从模板复制:
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```bash
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cp config/examples/template.json config/my-area.json
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```
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### 配置项
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```json
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{
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"qgisApp": "/Applications/QGIS.app",
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"input": "/absolute/path/to/input.osm",
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"outDir": "/absolute/path/to/osm2streets_web_out",
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"gpkg": "/absolute/path/to/output.gpkg",
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"project": "/absolute/path/to/output.qgz",
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"preview": "/absolute/path/to/output_preview.png",
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"arrowScale": 0.8,
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"clipPad": 0.002,
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"canvasPad": 0.001,
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"previewPad": 0.0007,
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"canvasExtent": null,
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"previewExtent": null,
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"layerPrefix": "osm2streets",
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"osm2streets": {
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"debug_each_step": false,
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"dual_carriageway_experiment": false,
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"sidepath_zipping_experiment": false,
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"inferred_sidewalks": true,
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"osm2lanes": true
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}
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}
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```
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- `input`:OSM XML 输入文件路径。
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- `outDir`:osm2streets GeoJSON 中间产物输出目录。
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- `gpkg` / `project` / `preview`:最终 GeoPackage、QGIS 工程、预览 PNG 路径。
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- `layerPrefix`:QGIS 图层显示名称前缀(如 `"osm2streets"` → `"osm2streets road surface"`)。
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- `arrowScale`:方向箭头几何缩放。
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- `osm2streets`:osm2streets 引擎选项。
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### 输出图层
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GeoPackage 内会生成:
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- `road_surface`
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- `intersection_surface`
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- `sidewalks`
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- `sidewalk_corners`
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- `lane_separators`
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- `center_lines`
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- `vehicle_stop_lines`
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- `lane_arrows_webscale`
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- `crosswalks`
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QGIS 工程绘制顺序:路面在最底,车道线、斑马线、停止线和箭头在上。
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## Blender 3D 场景(可选)
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osm2streets 道路几何为可选输入;不提供时回退到 OSM highway 折线。
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生成场景:
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```bash
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/Applications/Blender.app/Contents/MacOS/Blender \
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--background --factory-startup \
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--python blender/generate_scene.py -- \
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--osm "/path/to/input.osm" \
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--geojson "/path/to/osm2streets_web_out" \
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--output "/path/to/scene.blend" \
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--render "/path/to/preview.png"
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```
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`--geojson` 为可选参数。使用 `--office-overrides` 指定应渲染为办公楼的 OSM way ID(逗号分隔)。
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导出为 Cesium GLB:
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```bash
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/Applications/Blender.app/Contents/MacOS/Blender \
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--background \
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--python blender/export_cesium.py -- \
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--blend "/path/to/scene.blend" \
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--glb "/path/to/scene_cesium.glb" \
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--metadata "/path/to/scene_cesium.json"
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```
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详见 [blender/README.md](blender/README.md)。
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## 运行示例
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以下命令已在本机验证通过。
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QGIS 管线(使用汉阳区区块 OSM 数据):
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```bash
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node scripts/build-osm2streets-qgis.js \
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--config config/hanyang-block.json
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```
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Blender 场景(含 osm2streets 道路几何):
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```bash
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/Applications/Blender.app/Contents/MacOS/Blender \
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--background --factory-startup \
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--python blender/generate_scene.py -- \
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--osm "/Users/que01/Desktop/南台子湖创新谷OSM.osm" \
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--geojson "/Users/que01/osm2streets-qgis-workflow/outputs/nantaizi-lake-innovation-valley/osm2streets_web_out" \
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--output "/tmp/scene.blend" \
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--render "/tmp/preview.png"
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```
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Blender 场景(纯 OSM,无 osm2streets 道路):
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```bash
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/Applications/Blender.app/Contents/MacOS/Blender \
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--background --factory-startup \
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--python blender/generate_scene.py -- \
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--osm "/Users/que01/Desktop/南台子湖创新谷OSM.osm" \
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--output "/tmp/scene-nogeojson.blend" \
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--render "/tmp/preview-nogeojson.png"
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```
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Cesium GLB 导出:
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```bash
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/Applications/Blender.app/Contents/MacOS/Blender \
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--background \
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--python blender/export_cesium.py -- \
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--blend "/tmp/scene.blend" \
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--glb "/tmp/scene.glb" \
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--metadata "/tmp/scene.json"
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```
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## 文档
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- [docs/input-cases.md](docs/input-cases.md) — 已验证的 OSM 输入案例
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- [docs/changelog.md](docs/changelog.md) — 变更记录 |