Xuất các tòa nhà 3D sang định dạng COLLADA (.dae) để trao đổi dữ liệu 3D. Định dạng XML được Blender, SketchUp, Google Earth hỗ trợ. Bao gồm vật liệu với màu sắc theo loại tòa nhà.
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Giới thiệu về định dạng COLLADA
COLLADA (.dae) is an open XML format for exchanging 3D scenes, standardized by the Khronos Group and adopted as ISO/PAS 17506. It is older and heavier than glTF, but it remains the most reliable common language between SketchUp, Blender, Maya, 3ds Max and Google Earth — it is read practically everywhere, including old versions of programs.
A map is exported to DAE when city development is needed as an object in someone else's scene: to drop the context around a project into SketchUp, to assemble a 3D model for Google Earth, to move geometry between packages where FBX or glTF for some reason do not fit.
The output is a single .dae file: buildings extruded from OSM outlines by height or floor count, with materials colored by development type, and a flat base under them. The geometry is built in meters and centered on the selected area; there are no textures and no UV unwraps in the file — only colored materials.
Chương trình nào mở được tệp COLLADA
Các chương trình và ứng dụng sau có thể mở, chỉnh sửa và làm việc với tệp COLLADA/DAE (3D Exchange) (.dae) được xuất từ OSM2CDR:
Format specifications
- Open standard
- 3D coordinates supported
- Lossless (no quality loss)
- Stores feature attributes
- Output: 1 file
- COLLADA .dae (Khronos / ISO/PAS 17506). XML 3D interchange. Opens in Blender, SketchUp, Maya, Unity.
Ai sử dụng bản đồ COLLADA
Cách xuất COLLADA
Cách mở tệp sau khi xuất
- SketchUp — File → Import → choose the COLLADA (.dae) type; in the import settings enable merging coplanar faces so the model comes out lighter.
- Blender — File → Import → Collada (.dae); materials carry over as simple colors and can be replaced with your own right away.
- Google Earth Pro — the model is shown through KMZ: put the .dae into an archive together with a KML file that ties the model to coordinates.
- Maya, 3ds Max and Unity — import DAE out of the box; in Unity it is enough to put the file into the project folder, it will be picked up as an asset.
- Scale check — the scene is in meters; if the model arrives the wrong size, set the units in the import dialog instead of scaling the objects by hand.
Bản đồ phổ biến ở định dạng COLLADA
Nhận bản đồ xuất ở định dạng COLLADA/DAE (3D Exchange)
Tải bản đồ COLLADA chuyên nghiệp từ OpenStreetMap. Tạo tức thì, bất kỳ khu vực nào.
Câu hỏi thường gặp
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