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45 lines
723 B
45 lines
723 B
7 months ago
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## 做什么事情
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学习 brep 的sdf表示
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## 意义
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- brep方便控制
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- sdf方便运算和智能生成
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## 怎么做
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### 数据准备
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数据源： furniture
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文件结构
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brep( .step )
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train
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chair
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chair_1.brep
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chair_2.brep
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test
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val
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sdf ( .npz )
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train
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chair
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chair_1.sdf.npz
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chair_2.sdf.npz
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数据结构
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### brep to mesh
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基本思路：采样，然后三角化
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- 重采样
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《Mesh Generation from CAD Models》: sharp edge
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### mesh to sdf
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基本思路：体素，然后积分
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docker
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```
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docker run -it -v /mnt/disk2/dataset:/data -v $(pwd):/app --name brep_sdf ubuntu:22.04
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```
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