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basic framework for plasma offset done
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Peter van der Walt committed Mar 1, 2016
1 parent 6a4d47b commit 8bde9a5
Showing 1 changed file with 142 additions and 24 deletions.
166 changes: 142 additions & 24 deletions i/dxf/gcode/three2gcode.js
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Original file line number Diff line number Diff line change
Expand Up @@ -58,7 +58,8 @@ console.log('RapidSpeed', rapidSpeed);
var isLaserOn = false;
var isAtClearanceHeight = false;
var isFeedrateSpecifiedAlready = false;
path = [ [] ];
subj_paths = [];
subj_path2 = [];
console.log(txtGrp);
txtGrp.traverse( function(child) {
if (child.type == "Line") {
Expand Down Expand Up @@ -138,11 +139,8 @@ console.log('RapidSpeed', rapidSpeed);
//subj_paths.push(worldPt.x.toFixed(3) +',' + worldPt.y.toFixed(3));
var xpos = parseFloat(worldPt.x.toFixed(3));
var ypos = parseFloat(worldPt.y.toFixed(3));
sub_path = [
({X:xpos,Y:ypos})
];
subj_paths.push({X:xpos,Y:ypos});

path[i] = sub_path;

}
}
Expand All @@ -166,17 +164,19 @@ console.log('RapidSpeed', rapidSpeed);
g += "G0 Z" + options.millclearanceheight + "\n";
isAtClearanceHeight = true;
}
console.log('Input Path', subj_paths);
subj_path2 = getInflatedPath(subj_paths, 2);
console.log('Output Path', subj_path2);

console.log('Input Path', path);
subj_path2 = getInflatedPath(path, 3);
console.log('Inflated Path', subj_path2);
}
});
//var mesh = createClipperPathsAsMesh(subj_path2, 0xff0000, 0.2, subj_path2);
var millpath = createClipperPathsAsLines(subj_path2);
millpath.translateX(laserxmax /2 * -1);
millpath.translateY(laserymax /2 * -1);
scene.add(millpath);

// Lets try inflating path
// subj_path2 = getInflatedPath(subj_paths, 3);
// console.log('Subj Path', subj_path2);

}
});

console.log("generated gcode. length:", g.length);
// subj_paths = ClipperLib.Clipper.SimplifyPolygons(subj_paths, ClipperLib.PolyFillType.pftEvenOdd);
Expand Down Expand Up @@ -205,24 +205,142 @@ console.log('RapidSpeed', rapidSpeed);
function getInflatedPath(paths, delta, joinType) {
var scale = 10000;
console.log('Inside getInflatedPath');
ClipperLib.JS.ScaleUpPaths(paths, scale);
ClipperLib.JS.ScaleUpPath(paths, scale);
console.log('Scaled Path: ', paths);
var miterLimit = 2;
var arcTolerance = 10;
joinType = joinType ? joinType : ClipperLib.JoinType.jtRound
var co = new ClipperLib.ClipperOffset(miterLimit, arcTolerance);
co.AddPaths(paths, joinType, ClipperLib.EndType.etClosedPolygon);
co.AddPath(paths, joinType, ClipperLib.EndType.etClosedPolygon);
//var delta = 0.0625; // 1/16 inch endmill
var offsetted_paths = new ClipperLib.Paths();
var offsetted_paths = new ClipperLib.Path();
co.Execute(offsetted_paths, delta * scale);

// scale back down
for (var i = 0; i < offsetted_paths.length; i++) {
for (var j = 0; j < offsetted_paths[i].length; j++) {
offsetted_paths[i][j].X = offsetted_paths[i][j].X / scale;
offsetted_paths[i][j].Y = offsetted_paths[i][j].Y / scale;
}
}
ClipperLib.JS.ScaleDownPaths(paths, scale);
console.log('Offset Path: ', offsetted_paths);
// scale back down
for (var i = 0; i < offsetted_paths.length; i++) {
for (var j = 0; j < offsetted_paths[i].length; j++) {
offsetted_paths[i][j].X = offsetted_paths[i][j].X / scale;
offsetted_paths[i][j].Y = offsetted_paths[i][j].Y / scale;
}
}
ClipperLib.JS.ScaleDownPaths(paths, scale);
return offsetted_paths;

};

function createClipperPathsAsLines(paths) {

var geometry = new THREE.Geometry(),
color = 0xff0000,
material, lineType, vertex, startPoint, endPoint, i, line;


if (paths.length == 1) {
var shape = new THREE.Shape();
var i = 0;
for (var j = 0; j < paths[i].length; j++) {
var pt = paths[i][j];
//if (j == 0) shape.moveTo(pt.X, pt.Y);
//else shape.lineTo(pt.X, pt.Y);
geometry.vertices.push(new THREE.Vector3(pt.X, pt.Y, 0));
}
};

material = new THREE.LineBasicMaterial({ linewidth: 1, color: color, transparent: true });

millpath = new THREE.Line(geometry, material);
return millpath;

};

function createClipperPathsAsMesh(paths, color, opacity, holePath) {
//console.log("createClipperPathsAsMesh. paths:", paths, "holePath:", holePath);
if(color === undefined)
color = 0xff0000;
var mat = new THREE.MeshBasicMaterial({
color: color,
transparent: true,
opacity: opacity,
side: THREE.DoubleSide,
depthWrite: false
});


if (paths.length == 1) {
var shape = new THREE.Shape();
var i = 0;
for (var j = 0; j < paths[i].length; j++) {
var pt = paths[i][j];
if (j == 0) shape.moveTo(pt.X, pt.Y);
else shape.lineTo(pt.X, pt.Y);
}

// see if asked to create hole
// multiple holes supported now
if (holePath !== undefined && holePath != null) {
if (!(Array.isArray(holePath))) {
holePath = [holePath];
}

for (var hi = 0; hi < holePath.length; hi++) {
var hp = holePath[hi];
console.log("adding hole:", hp);
var hole = new THREE.Path();
//var i = 0;
for (var j = 0; j < hp.length; j++) {
var pt = hp[j];
if (j == 0) hole.moveTo(pt.X, pt.Y);
else hole.lineTo(pt.X, pt.Y);
}
shape.holes.push(hole);
}
}

var geometry = new THREE.ShapeGeometry( shape );
var shapeMesh = new THREE.Mesh(geometry, mat);

//group.add(shapeMesh);
return shapeMesh;
} else {
var group = new THREE.Object3D();

for (var i = 0; i < paths.length; i++) {
var shape = new THREE.Shape();
for (var j = 0; j < paths[i].length; j++) {
var pt = paths[i][j];
if (j == 0) shape.moveTo(pt.X, pt.Y);
else shape.lineTo(pt.X, pt.Y);
}

// see if asked to create hole
// multiple holes supported now
if (holePath !== undefined && holePath != null) {
if (!(Array.isArray(holePath))) {
holePath = [holePath];
}

for (var hi = 0; hi < holePath.length; hi++) {
var hp = holePath[hi];
console.log("adding hole:", hp);
var hole = new THREE.Path();
//var i = 0;
for (var j = 0; j < hp.length; j++) {
var pt = hp[j];
if (j == 0) hole.moveTo(pt.X, pt.Y);
else hole.lineTo(pt.X, pt.Y);
}
shape.holes.push(hole);
}
}

var geometry = new THREE.ShapeGeometry( shape );
var shapeMesh = new THREE.Mesh(geometry, mat);

group.add(shapeMesh);
}
return group;
}
//this.sceneAdd(group);

};

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