Question How would I make a snapping system (3D)

I want to make a system where objects snap to sides. Say a cube that has snap points on all sides. A triangle with all the sided having snap points to.

 

Snapping to vertices within a shape will require you to analyze the shape by extracting the mesh vertices and aligning each object together. You're welcome to take a look at my MakeGeo project for ideas on manipulating, creating and analyzing vertices in a mesh.

I suggest you start ultra-trivially, such as with two quads and code to extract their mesh verts and do the snapping.

Snapping things to arbitrary locations requires analysis of all possible snap combinations, gauging distances, and then deciding "You're close enough, you snap, now adjust ALL the points of the moving shape to match."

MakeGeo is presently hosted at these locations:

https://bitbucket.org/kurtdekker/makegeo

https://github.com/kurtdekker/makegeo

https://gitlab.com/kurtdekker/makegeo

https://sourceforge.net/p/makegeo

 

Thanks I'll try that.