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1. CAD Import Partitioning & Meshing J.Cugnoni LMAF / EPFL 2011
2. Vertices (0D):
Coordinates & coordinate system
Edges (1D):
several Vertices => line / curve
Surfaces (2D):
closed loop of edges (shared vertices), parametric 2D space, normal = orientation
Volumes (3D):
a closed set of surfaces (shared edges), unified normal orientation CAD Model Structure
3. CAD Example