Constructs
noun : an abstract or general idea inferred or derived from specific instances [syn: concept, conception]; verb 1: make by combining materials and parts [syn: build, make]; verb 2: put together out of components or parts [syn: manufacture, fabricate]; verb 3: draw with suitable instruments and under specified conditions, of geometrical figures; verb 4: of past events [syn: reconstruct, retrace]
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Delaunay triangulation of a flock
A variation on flock on a plane using a rather small flock of 500 particles. Each frame the Delaunay triangulation is calculated. The vertices are colored according to their movement direction. This gives a nice 3D illusion.
It was important to get the triangulation as efficient as possible to maintain a decent frame rate. Writing my own code was no option this time. So I used John Lloyd’s QuickHull3D package. It’s clean efficient code to calculate the convex hull of a collection of points. Additionaly it meshes nicely with Processing. The technique to use a 3D convex hull to construct the 2D Delaunay triangulation is well described: lift the 2D points onto a 3D paraboloid surface, calculate the convex hull of this surface and project the faces back down on the plane.
This would be a lot more interesting if you actual mentioned what it is you achieved with this. To what did you apply this approach?
Nothing to achieve, nothing to report…