Constructive solid geometry for narrow band level sets
This library implements constructive solid geometry operations for narrowband level sets. It is part of the rle family of modules for processing level sets.
Via npm:
npm install rle-csg
Here is an example showing how to use the library:
var core = require("rle-core");
var csg = require("rle-csg");
var cylinder = core.sampleSolid([-20, -20, -20], [20, 20, 20], function(x) {
return Math.max(Math.abs(x[2]) - 15, Math.sqrt(x[0]*x[0] + x[1]*x[1]) - 5.5);
});
var box = core.sampleSolid([-10, -10, -10], [10, 10, 10], function(x) {
return Math.max(Math.abs(x[0]), Math.abs(x[1]), Math.abs(x[2])) - 7.0;
});
var sphere = core.sampleSolid([-10,-10,-10], [10,10,10], function(x) {
return Math.sqrt(x[0]*x[0]+x[1]*x[1]+x[2]*x[2]) - 8.0;
});
var shape = csg.subtract(csg.unite(box, cylinder), sphere);
Which gives you a shape that looks like this:
If you want to see the result in 3D/WebGL, click here for an interactive demo
To import the library, just do:
var csg = require("rle-csg");
Or you can also just use the methods exposed by rle-all. There are 4 functions exposed by this library:
csg.unite(a, b)
Computes the set-theoretic union of solids a and b
csg.intersect(a, b)
Intersects solids a and b
csg.subtract(a, b)
Subtracts the solid a from b
csg.complement(a)
Returns the complement of a
(c) 2013 Mikola Lysenko. BSD License