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xcsg - xml based constructive solid geometry

xcsg is both a file format and an application. For the file format definition, please see the xcsg wiki for detailed information.

The xcsg application

The xcsg application takes an input .xcsg file, compiles its data into a solid model, and exports it to common surface mesh file formats, including STL. The application uses the Carve library for boolean operations.

$ xcsg --help

xcsg command line options & arguments (v1.5-00):
  -h [ --help ]         Show this help message.
  -v [ --version ]      Show program version (numeric part).
  --amf                 AMF output format (Additive Manufacturing Format)
  --csg                 CSG output format (OpenSCAD)
  --dxf                 DXF output format (AutoCAD DXF - 2D only)
  --svg                 SVG output format (Scalar Vector Graphics - 2D only)
  --stl                 STL output format (STereoLitography)
  --astl                STL output format (STereoLitography) - ASCII
  --obj                 OBJ output format (Wavefront format)
  --off                 OFF output format (Geomview Object File Format)
  --export_dir arg      Export output files to directory
  --max_bool arg        Max number of booleans allowed
  --sec_tol arg         Secant tolerance when importing OpenSCAD csg (0.05)
  --fullpath            Show full file paths. 
  <xcsg-file>           path to input .xcsg file (required)

example

To compute the difference between a cube and a sphere and store the result as STL

$ xcsg --stl difference3d.xcsg

The file difference3d.xcsg:

<?xml version="1.0" encoding="utf-8"?>
<xcsg version="1.0">
    <difference3d>
        <cube size="50" center="true"/>
        <sphere r="33"/>
    </difference3d>
</xcsg>

The resulting STL becomes: