soypat / gsdf

3D/2D CAD design package written in Go. GPU accelerated.

gsdf

Offshoot from this project. Is WIP.

Features

• Heapless algorithms for everything. No usage of GC in happy path.
• Generate visualization for your parts as shaders.
• Heapless Octree triangle renderer. Is stupid fast.
• GPU and CPU implementations for all shapes and operations. CPU implementations are actually faster for simple parts.
  • Design your part using one API, switch between CPU and GPU after design.
• Extremely coherent API design.

Part design - NPT Flange example.

This was converted from the original example. See README for images.

    const (
		tlen             = 18. / 25.4 // thread length
		internalDiameter = 1.5 / 2.
		flangeH          = 7. / 25.4
		flangeD          = 60. / 25.4
	)
	var (
		npt    threads.NPT
		flange glbuild.Shader3D
		err    error
	)
	err = npt.SetFromNominal(1.0 / 2.0)
	if err != nil {
		return nil, err
	}
	pipe, err := threads.Nut(threads.NutParms{
		Thread: npt,
		Style:  threads.NutCircular,
	})
	if err != nil {
		return nil, err
	}
	flange, err = gsdf.NewCylinder(flangeD/2, flangeH, flangeH/8)
	if err != nil {
		return nil, err
	}
	flange = gsdf.Translate(flange, 0, 0, -tlen/2)
	flange = gsdf.SmoothUnion(pipe, flange, 0.2)
	hole, err := gsdf.NewCylinder(internalDiameter/2, 4*flangeH, 0)
	if err != nil {
		return nil, err
	}
	flange = gsdf.Difference(flange, hole) // Make through-hole in flange bottom
	flange = gsdf.Scale(flange, 25.4)      // convert to millimeters
	renderSDF(flange)