C++ CAD

This is a small library for outputting CAD models from C++. It contains implementations of tesselations of a couple of basic primitives (sphere, cone / cylinder), and basic helper functions.

Most of the functionality comes from the CGAL library, such as:

• Constructive solid geometry binary operations (difference, union).
• Convex hulls.
• Minkowski sums of solids.

CGAL supports input and output in a few formats, such as Waveform OBJ, OFF, VRML.

Example

#include <cpp_cad.h>


typedef cpp_cad::Nef_polyhedron_3 Nef_polyhedron_3;


// Outputs the difference between a cube and a sphere as an OBJ file:
int main()
{
    // A 10 x 10 x 10 unit cube:
    Nef_polyhedron_3 nef_cube = Nef_polyhedron_3::make_cube(10, 10, 10);
    // A sphere with radius 10 units, tessalated with 16 divisions per great
    // circle:
    Nef_polyhedron_3 nef_sphere = Nef_polyhedron_3::make_sphere(10, 16);
    // The sphere subtracted from the cube:
    Nef_polyhedron_3 diff = nef_cube - nef_sphere;

    diff.write_to_obj_file("output.obj");

    return 0;
}

Requirements

• C++ 11
• libCGAL

License

Apache 2.0.

Installation

Ubuntu 16

Build a Debian package:

./build_packages.sh

Install the package:

sudo dpkg -i build/libcppcad_0.1.0.deb

Other Platforms

• Package C++ CAD for your platform.
• Install the package.
• (Contribute packaging.)