DXF

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DXF is a file format to exchange CAD data from Autodesk.

Currently, the following Autodesk CAD entity types are supported:

  • LWPOLYLINES (2 dimensional line strings), including buldges
  • LINE (single lines)
  • POLYLINE (3 dimensional line strings), currently only interpreted as 2 dimensional. The z-coordinate is ignored.
  • HATCH (polygonal data constructed using other boundary entities)
  • CIRCLE: full and partial circles, given a center point, radius and start and end angle.
  • ELLIPSE: full and partial ellipses, given a center point, major and minor axis, rotation and start and end angle.
  • ARC: curved lines given a center point and a radius.
  • VERTEX: 2 dimensional point.
  • POINT: Same as vertex, but 3 dimensional. Currently only interpreted as 2 dimensional. The z-coordinate is ignored.
  • SPLINE: Control point splines are currently supported.