tuo-verb/benchmark/regularSurfaceSampling.js

A CAD library for the web

var Benchmark = require('benchmark')
	, verb = require('../build/js/verb.js');

function getComplexSurface(){

	var degree = 3
		, knots = [0, 0, 0, 0, 0.333, 0.666, 1, 1, 1, 1]
		, pts = [ 	[ [0, 0, -10], 	[10, 0, 0], 	[20, 0, 0], 	[30, 0, 0] , 	[40, 0, 0], [50, 0, 0] ],
					[ [0, -10, 0], 	[10, -10, 10], 	[20, -10, 10], 	[30, -10, 0] , [40, -10, 0], [50, -10, 0]	],
					[ [0, -20, 0], 	[10, -20, 10], 	[20, -20, 10], 	[30, -20, 0] , [40, -20, -2], [50, -20, 0] 	],
					[ [0, -30, 0], 	[10, -30, 0], 	[20, -30, -23], 	[30, -30, 0] , [40, -30, 0], [50, -30, 0]     ],
					[ [0, -40, 0], 	[10, -40, 0], 	[20, -40, 0], 	[30, -40, 4] , [40, -40, -20], [50, -40, 0]     ],
					[ [0, -50, 12], [10, -50, 0], 	[20, -50, 0], 	[30, -50, 0] , [50, -50, 0], [50, -50, -15]     ],     ]
		, wts = [ 	[ 1, 1, 1, 1, 1, 1],
					[ 1, 1, 1, 1, 1, 1],
					[ 1, 1, 1, 1, 1, 1],
					[ 1, 1, 1, 1, 1, 1],
					[ 1, 1, 1, 1, 1, 1],
					[ 1, 1, 1, 1, 1, 1] ];

	pts = verb.eval.Eval.homogenize2d(pts, wts);

	var srfObj = {
		degreeU : degree,
		degreeV : degree,
		knotsU : knots,
		knotsV : knots,
		controlPoints : pts
	};

	return srfObj;
}

var complexSurface = getComplexSurface();

module.exports = {
  name: 'Regular surface sampling',
  tests: {
    'surfaceRegularSample (80 x 80)': function() {
		verb.eval.Eval.surfaceRegularSamplePoints( complexSurface, 80, 80 );
    },
    'direct evaluation (80 x 80)': function() {
        var ar = [];
		var sp = 1 / 80;

		for (var i = 0; i < 81; i++){
			var ari = [];
			ar.push(ari);
			for (var j = 0; j < 81; j++){
				ari.push( verb.eval.Eval.surfacePoint( complexSurface, i*sp, j*sp ) )
			}
		}
    }
  }
};