CandleCaster

function getParameterDefinitions() {
return[
	{name:'cwdt', caption:'Candle width:', type:'float', initial:40},
	{name:'chgt', caption:'Candle height:', type:'float', initial:30},
	{name:'wall', caption:'Wall thickness:', type:'float', initial:0.8},
	{name:'wick', caption:'Wick diameter:', type:'float', initial:1.5}
];
}

function main(params) {
	paths_array = paths_array = [[335, 384, 1], [1,[[169,0],[169,0],[168.47328124999999,0.1578125],[167.77875,0.5875],[166.25,2],[166.25,2],[163.59890625,6.23328125],[157.67125,16.26875],[139.5,47.75],[114.5,91.5],[60,92.08],[60,92.08],[38.698125,92.3596875],[20.9925,92.69000000000001],[3.75,93.33],[3.75,93.33],[3.07328125,93.76796875],[2.5212499999999998,94.46375],[2.02,96.25],[2.02,96.25],[2.3962499999999998,97.75593749999999],[3.395,100.19],[6.66,106.5],[6.66,106.5],[10.09296875,112.408125],[16.02625,122.58],[32.06,150],[32.06,150],[40.179375,163.90515625000003],[46.9225,175.51625],[53.46,187],[53.46,187],[53.363749999999996,188.2059375],[52.6225,190.37],[49.64,196.5],[49.64,196.5],[46.13328125,202.72375],[39.86375,213.755],[22.58,244],[22.58,244],[13.795625,259.41812500000003],[6.5975,272.1925],[-0.07,284.5],[-0.07,284.5],[0.05765624999999999,285.00734375],[0.41875,285.64875],[1.62,287],[1.62,287],[4.2928125,287.77203125],[12.120000000000001,288.18125],[55.41,288.17],[107.5,287.83],[115.62,301.67],[115.62,301.67],[120.23843749999999,309.56218749999994],[126.80499999999999,320.835],[142.28,347.5],[142.28,347.5],[149.62546875,360.1125],[155.91625000000002,370.7975],[162.66,381.87],[162.66,381.87],[163.59890625,382.88796875],[164.53875,383.51875],[166.5,383.66],[166.5,383.66],[167.71265625,382.73453125],[169.48875,380.62875],[174,373.84],[174,373.84],[177.75609375000002,367.40328125],[183.91125,356.71875],[200.01,328.55],[220.52,292.5],[275.51,291.99],[275.51,291.99],[296.95796875,291.73421875],[314.71125,291.41374999999994],[331.75,290.74],[331.75,290.74],[332.23640624999996,290.27421875],[332.63374999999996,289.55625],[333,287.75],[333,287.75],[332.39046875,285.81078125],[330.71875,282.19624999999996],[325.22,272],[325.22,272],[320.75046875,264.27546875],[314.33375,253.21625],[299.09,227],[280.75,195.5],[283.04,191.5],[283.04,191.5],[285.40234375,187.383125],[290.14125,179.13],[304,155],[304,155],[311.75640625000005,141.48703125],[319.07124999999996,128.71375],[329.08,111.15],[329.08,111.15],[332.21750000000003,105.44984374999999],[334.0125,101.72125000000001],[334.4,98.15],[334.4,98.15],[333.70109375,97.4609375],[332.61875000000003,96.80749999999999],[329.9,95.9],[329.9,95.9],[324.6746875,95.70734375000002],[312.96,95.62625],[277,95.81],[227.5,96.31],[216,76.45],[216,76.45],[210.33921875000001,66.685],[203.42125,54.775],[189.32,30.55],[189.32,30.55],[183.26234374999996,20.25703125],[177.99125,11.491249999999999],[172.07,2.25],[172.07,2.25],[171.18671875,1.3753125],[170.31375,0.66],[169,0]]]];
	
	var input_width = paths_array[0][0];
	var input_height = paths_array[0][1];
	var tVersion = paths_array[0][2];

var dispo_width = params.cwdt - 1;
	var sTrace = dispo_width/input_width;
	var stamp_height = input_height*sTrace + 1;
	var wall = params.wall;
	var wick = params.wick/2;
	var chgt = params.chgt/2;
	
	var i, len, j, l, poly;
	var stamp = new CSG();
	var base = new CSG();

for (i=1, len=paths_array.length; i < len; i++) {
		poly = [paths_array[i][1][0]];
		for (j=1, l=paths_array[i][1].length; j < l; j++) {
			point = paths_array[i][1][j];
			if (point[0] === undefined && point[1] === undefined) continue;
			if (point[0] == poly[poly.length -1][0] && point[1] == poly[poly.length -1][1]) continue;
			
			if (! alreadyInPath(poly, point)) {
				poly.push(point);	
			}
		}
		
		var path = new CSG.Path2D(poly, true);
			
		if (paths_array[i][0] == 1) {
			stamp = stamp.union(scale(sTrace, path.rectangularExtrude(wall/sTrace, params.chgt/sTrace, 8, true)));
		} else {
			stamp = stamp.subtract(scale(sTrace, path.rectangularExtrude(wall, params.chgt/sTrace, 8, true)));
		}
	}
	
	//console.log("Before: "+wall);
	
	stamp = stamp.translate([-sTrace*input_width/2, -sTrace*input_height/2, 0]);
	stamp = stamp.scale([-1, -1, 1]);
	
	var owdt = stamp.getBounds()[1].x - stamp.getBounds()[0].x;
	var tmp = params.cwdt/owdt;
	stamp = stamp.scale([tmp,tmp, 1]);
	
	//console.log("After: "+wall*tmp);
	
	base = base.union(scale(sTrace, linear_extrude({height:wall/sTrace}, polygon(poly))));
	base = base.translate([-sTrace*input_width/2, -sTrace*input_height/2, 0]);
	base = base.scale([-1, -1, 1]);
	base = base.scale([tmp,tmp, 1]);
	
	base = base.center(true);
	base = base.translate([0,0,wall/2]);
	
	if(wick > 0){
		var Cyl1 = CSG.cylinder({
			center: [0,0,0],
			start: [0,0,-chgt],
			end: [0,0,chgt],
			radius: wick, resolution: 16
		});
		
		base = base.subtract([Cyl1]);
	};
	
	return stamp.union(base).setColor(0.5, 0.5, 0.6); 
}

function alreadyInPath(pArray, pPoint) {
	for (var i=0, l=pArray.length; i < l; i++) {
		if (pPoint[0] == pArray[i][0] && pPoint[1] == pArray[i][1]) {
			return true;		
		}
	}
	return false;
}