1076 lines
31 KiB
JavaScript
1076 lines
31 KiB
JavaScript
/* PCB rendering code */
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var emptyContext2d = document.createElement("canvas").getContext("2d");
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function deg2rad(deg) {
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return deg * Math.PI / 180;
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}
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function calcFontPoint(linepoint, text, offsetx, offsety, tilt) {
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var point = [
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linepoint[0] * text.width + offsetx,
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linepoint[1] * text.height + offsety
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];
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// This approximates pcbnew behavior with how text tilts depending on horizontal justification
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point[0] -= (linepoint[1] + 0.5 * (1 + text.justify[0])) * text.height * tilt;
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return point;
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}
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function drawText(ctx, text, color) {
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if ("ref" in text && !settings.renderReferences) return;
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if ("val" in text && !settings.renderValues) return;
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ctx.save();
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ctx.fillStyle = color;
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ctx.strokeStyle = color;
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ctx.lineCap = "round";
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ctx.lineJoin = "round";
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ctx.lineWidth = text.thickness;
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if ("svgpath" in text) {
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ctx.stroke(new Path2D(text.svgpath));
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ctx.restore();
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return;
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}
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if ("polygons" in text) {
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ctx.fill(getPolygonsPath(text));
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ctx.restore();
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return;
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}
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ctx.translate(...text.pos);
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ctx.translate(text.thickness * 0.5, 0);
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var angle = -text.angle;
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if (text.attr.includes("mirrored")) {
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ctx.scale(-1, 1);
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angle = -angle;
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}
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var tilt = 0;
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if (text.attr.includes("italic")) {
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tilt = 0.125;
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}
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var interline = text.height * 1.5 + text.thickness;
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var txt = text.text.split("\n");
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// KiCad ignores last empty line.
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if (txt[txt.length - 1] == '') txt.pop();
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ctx.rotate(deg2rad(angle));
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var offsety = (1 - text.justify[1]) / 2 * text.height; // One line offset
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offsety -= (txt.length - 1) * (text.justify[1] + 1) / 2 * interline; // Multiline offset
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for (var i in txt) {
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var lineWidth = text.thickness + interline / 2 * tilt;
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for (var j = 0; j < txt[i].length; j++) {
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if (txt[i][j] == '\t') {
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var fourSpaces = 4 * pcbdata.font_data[' '].w * text.width;
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lineWidth += fourSpaces - lineWidth % fourSpaces;
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} else {
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if (txt[i][j] == '~') {
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j++;
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if (j == txt[i].length)
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break;
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}
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lineWidth += pcbdata.font_data[txt[i][j]].w * text.width;
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}
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}
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var offsetx = -lineWidth * (text.justify[0] + 1) / 2;
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var inOverbar = false;
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for (var j = 0; j < txt[i].length; j++) {
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if (config.kicad_text_formatting) {
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if (txt[i][j] == '\t') {
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var fourSpaces = 4 * pcbdata.font_data[' '].w * text.width;
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offsetx += fourSpaces - offsetx % fourSpaces;
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continue;
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} else if (txt[i][j] == '~') {
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j++;
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if (j == txt[i].length)
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break;
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if (txt[i][j] != '~') {
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inOverbar = !inOverbar;
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}
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}
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}
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var glyph = pcbdata.font_data[txt[i][j]];
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if (inOverbar) {
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var overbarStart = [offsetx, -text.height * 1.4 + offsety];
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var overbarEnd = [offsetx + text.width * glyph.w, overbarStart[1]];
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if (!lastHadOverbar) {
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overbarStart[0] += text.height * 1.4 * tilt;
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lastHadOverbar = true;
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}
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ctx.beginPath();
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ctx.moveTo(...overbarStart);
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ctx.lineTo(...overbarEnd);
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ctx.stroke();
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} else {
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lastHadOverbar = false;
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}
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for (var line of glyph.l) {
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ctx.beginPath();
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ctx.moveTo(...calcFontPoint(line[0], text, offsetx, offsety, tilt));
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for (var k = 1; k < line.length; k++) {
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ctx.lineTo(...calcFontPoint(line[k], text, offsetx, offsety, tilt));
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}
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ctx.stroke();
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}
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offsetx += glyph.w * text.width;
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}
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offsety += interline;
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}
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ctx.restore();
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}
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function drawedge(ctx, scalefactor, edge, color) {
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ctx.strokeStyle = color;
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ctx.fillStyle = color;
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ctx.lineWidth = Math.max(1 / scalefactor, edge.width);
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ctx.lineCap = "round";
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ctx.lineJoin = "round";
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if ("svgpath" in edge) {
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ctx.stroke(new Path2D(edge.svgpath));
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} else {
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ctx.beginPath();
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if (edge.type == "segment") {
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ctx.moveTo(...edge.start);
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ctx.lineTo(...edge.end);
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}
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if (edge.type == "rect") {
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ctx.moveTo(...edge.start);
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ctx.lineTo(edge.start[0], edge.end[1]);
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ctx.lineTo(...edge.end);
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ctx.lineTo(edge.end[0], edge.start[1]);
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ctx.lineTo(...edge.start);
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}
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if (edge.type == "arc") {
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ctx.arc(
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...edge.start,
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edge.radius,
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deg2rad(edge.startangle),
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deg2rad(edge.endangle));
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}
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if (edge.type == "circle") {
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ctx.arc(
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...edge.start,
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edge.radius,
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0, 2 * Math.PI);
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ctx.closePath();
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}
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if (edge.type == "curve") {
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ctx.moveTo(...edge.start);
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ctx.bezierCurveTo(...edge.cpa, ...edge.cpb, ...edge.end);
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}
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if("filled" in edge && edge.filled)
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ctx.fill();
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else
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ctx.stroke();
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}
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}
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function getChamferedRectPath(size, radius, chamfpos, chamfratio) {
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// chamfpos is a bitmask, left = 1, right = 2, bottom left = 4, bottom right = 8
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var path = new Path2D();
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var width = size[0];
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var height = size[1];
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var x = width * -0.5;
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var y = height * -0.5;
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var chamfOffset = Math.min(width, height) * chamfratio;
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path.moveTo(x, 0);
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if (chamfpos & 4) {
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path.lineTo(x, y + height - chamfOffset);
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path.lineTo(x + chamfOffset, y + height);
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path.lineTo(0, y + height);
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} else {
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path.arcTo(x, y + height, x + width, y + height, radius);
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}
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if (chamfpos & 8) {
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path.lineTo(x + width - chamfOffset, y + height);
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path.lineTo(x + width, y + height - chamfOffset);
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path.lineTo(x + width, 0);
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} else {
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path.arcTo(x + width, y + height, x + width, y, radius);
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}
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if (chamfpos & 2) {
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path.lineTo(x + width, y + chamfOffset);
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path.lineTo(x + width - chamfOffset, y);
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path.lineTo(0, y);
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} else {
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path.arcTo(x + width, y, x, y, radius);
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}
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if (chamfpos & 1) {
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path.lineTo(x + chamfOffset, y);
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path.lineTo(x, y + chamfOffset);
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path.lineTo(x, 0);
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} else {
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path.arcTo(x, y, x, y + height, radius);
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}
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path.closePath();
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return path;
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}
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function getOblongPath(size) {
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return getChamferedRectPath(size, Math.min(size[0], size[1]) / 2, 0, 0);
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}
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function getPolygonsPath(shape) {
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if (shape.path2d) {
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return shape.path2d;
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}
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if ("svgpath" in shape) {
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shape.path2d = new Path2D(shape.svgpath);
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} else {
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var path = new Path2D();
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for (var polygon of shape.polygons) {
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path.moveTo(...polygon[0]);
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for (var i = 1; i < polygon.length; i++) {
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path.lineTo(...polygon[i]);
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}
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path.closePath();
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}
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shape.path2d = path;
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}
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return shape.path2d;
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}
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function drawPolygonShape(ctx, scalefactor, shape, color) {
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ctx.save();
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if (!("svgpath" in shape)) {
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ctx.translate(...shape.pos);
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ctx.rotate(deg2rad(-shape.angle));
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}
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if("filled" in shape && !shape.filled) {
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ctx.strokeStyle = color;
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ctx.lineWidth = Math.max(1 / scalefactor, shape.width);
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ctx.lineCap = "round";
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ctx.lineJoin = "round";
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ctx.stroke(getPolygonsPath(shape));
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} else {
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ctx.fillStyle = color;
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ctx.fill(getPolygonsPath(shape));
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}
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ctx.restore();
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}
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function drawDrawing(ctx, scalefactor, drawing, color) {
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if (["segment", "arc", "circle", "curve", "rect"].includes(drawing.type)) {
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drawedge(ctx, scalefactor, drawing, color);
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} else if (drawing.type == "polygon") {
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drawPolygonShape(ctx, scalefactor, drawing, color);
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} else {
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drawText(ctx, drawing, color);
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}
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}
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function getCirclePath(radius) {
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var path = new Path2D();
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path.arc(0, 0, radius, 0, 2 * Math.PI);
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path.closePath();
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return path;
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}
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function getCachedPadPath(pad) {
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if (!pad.path2d) {
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// if path2d is not set, build one and cache it on pad object
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if (pad.shape == "rect") {
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pad.path2d = new Path2D();
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pad.path2d.rect(...pad.size.map(c => -c * 0.5), ...pad.size);
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} else if (pad.shape == "oval") {
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pad.path2d = getOblongPath(pad.size);
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} else if (pad.shape == "circle") {
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pad.path2d = getCirclePath(pad.size[0] / 2);
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} else if (pad.shape == "roundrect") {
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pad.path2d = getChamferedRectPath(pad.size, pad.radius, 0, 0);
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} else if (pad.shape == "chamfrect") {
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pad.path2d = getChamferedRectPath(pad.size, pad.radius, pad.chamfpos, pad.chamfratio)
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} else if (pad.shape == "custom") {
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pad.path2d = getPolygonsPath(pad);
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}
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}
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return pad.path2d;
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}
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function drawPad(ctx, pad, color, outline) {
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ctx.save();
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ctx.translate(...pad.pos);
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ctx.rotate(-deg2rad(pad.angle));
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if (pad.offset) {
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ctx.translate(...pad.offset);
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}
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ctx.fillStyle = color;
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ctx.strokeStyle = color;
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var path = getCachedPadPath(pad);
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if (outline) {
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ctx.stroke(path);
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} else {
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ctx.fill(path);
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}
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ctx.restore();
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}
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function drawPadHole(ctx, pad, padHoleColor) {
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if (pad.type != "th") return;
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ctx.save();
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ctx.translate(...pad.pos);
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ctx.rotate(-deg2rad(pad.angle));
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ctx.fillStyle = padHoleColor;
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if (pad.drillshape == "oblong") {
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ctx.fill(getOblongPath(pad.drillsize));
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} else {
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ctx.fill(getCirclePath(pad.drillsize[0] / 2));
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}
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ctx.restore();
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}
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function drawFootprint(ctx, layer, scalefactor, footprint, colors, highlight, outline) {
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if (highlight) {
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// draw bounding box
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if (footprint.layer == layer) {
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ctx.save();
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ctx.globalAlpha = 0.2;
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ctx.translate(...footprint.bbox.pos);
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ctx.rotate(deg2rad(-footprint.bbox.angle));
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ctx.translate(...footprint.bbox.relpos);
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ctx.fillStyle = colors.pad;
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ctx.fillRect(0, 0, ...footprint.bbox.size);
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ctx.globalAlpha = 1;
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ctx.strokeStyle = colors.pad;
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ctx.lineWidth = 3 / scalefactor;
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ctx.strokeRect(0, 0, ...footprint.bbox.size);
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ctx.restore();
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}
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}
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// draw drawings
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for (var drawing of footprint.drawings) {
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if (drawing.layer == layer) {
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drawDrawing(ctx, scalefactor, drawing.drawing, colors.pad);
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}
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}
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ctx.lineWidth = 3 / scalefactor;
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// draw pads
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if (settings.renderPads) {
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for (var pad of footprint.pads) {
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if (pad.layers.includes(layer)) {
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drawPad(ctx, pad, colors.pad, outline);
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if (pad.pin1 &&
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(settings.highlightpin1 == "all" ||
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settings.highlightpin1 == "selected" && highlight)) {
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drawPad(ctx, pad, colors.outline, true);
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}
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}
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}
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for (var pad of footprint.pads) {
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drawPadHole(ctx, pad, colors.padHole);
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}
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}
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}
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function drawEdgeCuts(canvas, scalefactor) {
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var ctx = canvas.getContext("2d");
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var edgecolor = getComputedStyle(topmostdiv).getPropertyValue('--pcb-edge-color');
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for (var edge of pcbdata.edges) {
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drawDrawing(ctx, scalefactor, edge, edgecolor);
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}
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}
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function drawFootprints(canvas, layer, scalefactor, highlight) {
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var ctx = canvas.getContext("2d");
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ctx.lineWidth = 3 / scalefactor;
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var style = getComputedStyle(topmostdiv);
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var colors = {
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pad: style.getPropertyValue('--pad-color'),
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padHole: style.getPropertyValue('--pad-hole-color'),
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outline: style.getPropertyValue('--pin1-outline-color'),
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}
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for (var i = 0; i < pcbdata.footprints.length; i++) {
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var mod = pcbdata.footprints[i];
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var outline = settings.renderDnpOutline && pcbdata.bom.skipped.includes(i);
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var h = highlightedFootprints.includes(i);
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var d = markedFootprints.has(i);
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if (highlight) {
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if(h && d) {
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colors.pad = style.getPropertyValue('--pad-color-highlight-both');
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colors.outline = style.getPropertyValue('--pin1-outline-color-highlight-both');
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} else if (h) {
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colors.pad = style.getPropertyValue('--pad-color-highlight');
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colors.outline = style.getPropertyValue('--pin1-outline-color-highlight');
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} else if (d) {
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colors.pad = style.getPropertyValue('--pad-color-highlight-marked');
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colors.outline = style.getPropertyValue('--pin1-outline-color-highlight-marked');
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}
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}
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if( h || d || !highlight) {
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drawFootprint(ctx, layer, scalefactor, mod, colors, highlight, outline);
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}
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}
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}
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function drawBgLayer(layername, canvas, layer, scalefactor, edgeColor, polygonColor, textColor) {
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var ctx = canvas.getContext("2d");
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for (var d of pcbdata.drawings[layername][layer]) {
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if (["segment", "arc", "circle", "curve", "rect"].includes(d.type)) {
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drawedge(ctx, scalefactor, d, edgeColor);
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} else if (d.type == "polygon") {
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drawPolygonShape(ctx, scalefactor, d, polygonColor);
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} else {
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drawText(ctx, d, textColor);
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}
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}
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}
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function drawTracks(canvas, layer, defaultColor, highlight) {
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ctx = canvas.getContext("2d");
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ctx.lineCap = "round";
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var hasHole = (track) => (
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'drillsize' in track &&
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track.start[0] == track.end[0] &&
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track.start[1] == track.end[1]);
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// First draw tracks and tented vias
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for (var track of pcbdata.tracks[layer]) {
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if (highlight && highlightedNet != track.net) continue;
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if (!hasHole(track)) {
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ctx.strokeStyle = highlight ? defaultColor : settings.netColors[track.net] || defaultColor;
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ctx.lineWidth = track.width;
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ctx.beginPath();
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if ('radius' in track) {
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ctx.arc(
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...track.center,
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track.radius,
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deg2rad(track.startangle),
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deg2rad(track.endangle));
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} else {
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ctx.moveTo(...track.start);
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ctx.lineTo(...track.end);
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}
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ctx.stroke();
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}
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}
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// Second pass to draw untented vias
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var style = getComputedStyle(topmostdiv);
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var holeColor = style.getPropertyValue('--pad-hole-color')
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for (var track of pcbdata.tracks[layer]) {
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if (highlight && highlightedNet != track.net) continue;
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if (hasHole(track)) {
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ctx.strokeStyle = highlight ? defaultColor : settings.netColors[track.net] || defaultColor;
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ctx.lineWidth = track.width;
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ctx.beginPath();
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ctx.moveTo(...track.start);
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ctx.lineTo(...track.end);
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ctx.stroke();
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ctx.strokeStyle = holeColor;
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ctx.lineWidth = track.drillsize;
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ctx.lineTo(...track.end);
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ctx.stroke();
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}
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}
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}
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function drawZones(canvas, layer, defaultColor, highlight) {
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ctx = canvas.getContext("2d");
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ctx.lineJoin = "round";
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for (var zone of pcbdata.zones[layer]) {
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if (highlight && highlightedNet != zone.net) continue;
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ctx.strokeStyle = highlight ? defaultColor : settings.netColors[zone.net] || defaultColor;
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ctx.fillStyle = highlight ? defaultColor : settings.netColors[zone.net] || defaultColor;
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if (!zone.path2d) {
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zone.path2d = getPolygonsPath(zone);
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}
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ctx.fill(zone.path2d, zone.fillrule || "nonzero");
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if (zone.width > 0) {
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ctx.lineWidth = zone.width;
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ctx.stroke(zone.path2d);
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}
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}
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}
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function clearCanvas(canvas, color = null) {
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var ctx = canvas.getContext("2d");
|
|
ctx.save();
|
|
ctx.setTransform(1, 0, 0, 1, 0, 0);
|
|
if (color) {
|
|
ctx.fillStyle = color;
|
|
ctx.fillRect(0, 0, canvas.width, canvas.height);
|
|
} else {
|
|
if (!window.matchMedia("print").matches)
|
|
ctx.clearRect(0, 0, canvas.width, canvas.height);
|
|
}
|
|
ctx.restore();
|
|
}
|
|
|
|
function drawNets(canvas, layer, highlight) {
|
|
var style = getComputedStyle(topmostdiv);
|
|
if (settings.renderZones) {
|
|
var zoneColor = style.getPropertyValue(highlight ? '--zone-color-highlight' : '--zone-color');
|
|
drawZones(canvas, layer, zoneColor, highlight);
|
|
}
|
|
if (settings.renderTracks) {
|
|
var trackColor = style.getPropertyValue(highlight ? '--track-color-highlight' : '--track-color');
|
|
drawTracks(canvas, layer, trackColor, highlight);
|
|
}
|
|
if (highlight && settings.renderPads) {
|
|
var padColor = style.getPropertyValue('--pad-color-highlight');
|
|
var padHoleColor = style.getPropertyValue('--pad-hole-color');
|
|
var ctx = canvas.getContext("2d");
|
|
for (var footprint of pcbdata.footprints) {
|
|
// draw pads
|
|
var padDrawn = false;
|
|
for (var pad of footprint.pads) {
|
|
if (highlightedNet != pad.net) continue;
|
|
if (pad.layers.includes(layer)) {
|
|
drawPad(ctx, pad, padColor, false);
|
|
padDrawn = true;
|
|
}
|
|
}
|
|
if (padDrawn) {
|
|
// redraw all pad holes because some pads may overlap
|
|
for (var pad of footprint.pads) {
|
|
drawPadHole(ctx, pad, padHoleColor);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function drawHighlightsOnLayer(canvasdict, clear = true) {
|
|
if (clear) {
|
|
clearCanvas(canvasdict.highlight);
|
|
}
|
|
if (markedFootprints.size > 0 || highlightedFootprints.length > 0) {
|
|
drawFootprints(canvasdict.highlight, canvasdict.layer,
|
|
canvasdict.transform.s * canvasdict.transform.zoom, true);
|
|
}
|
|
if (highlightedNet !== null) {
|
|
drawNets(canvasdict.highlight, canvasdict.layer, true);
|
|
}
|
|
}
|
|
|
|
function drawHighlights() {
|
|
drawHighlightsOnLayer(allcanvas.front);
|
|
drawHighlightsOnLayer(allcanvas.back);
|
|
}
|
|
|
|
function drawBackground(canvasdict, clear = true) {
|
|
if (clear) {
|
|
clearCanvas(canvasdict.bg);
|
|
clearCanvas(canvasdict.fab);
|
|
clearCanvas(canvasdict.silk);
|
|
}
|
|
|
|
drawNets(canvasdict.bg, canvasdict.layer, false);
|
|
drawFootprints(canvasdict.bg, canvasdict.layer,
|
|
canvasdict.transform.s * canvasdict.transform.zoom, false);
|
|
|
|
drawEdgeCuts(canvasdict.bg, canvasdict.transform.s * canvasdict.transform.zoom);
|
|
|
|
var style = getComputedStyle(topmostdiv);
|
|
var edgeColor = style.getPropertyValue('--silkscreen-edge-color');
|
|
var polygonColor = style.getPropertyValue('--silkscreen-polygon-color');
|
|
var textColor = style.getPropertyValue('--silkscreen-text-color');
|
|
if (settings.renderSilkscreen) {
|
|
drawBgLayer(
|
|
"silkscreen", canvasdict.silk, canvasdict.layer,
|
|
canvasdict.transform.s * canvasdict.transform.zoom,
|
|
edgeColor, polygonColor, textColor);
|
|
}
|
|
edgeColor = style.getPropertyValue('--fabrication-edge-color');
|
|
polygonColor = style.getPropertyValue('--fabrication-polygon-color');
|
|
textColor = style.getPropertyValue('--fabrication-text-color');
|
|
if (settings.renderFabrication) {
|
|
drawBgLayer(
|
|
"fabrication", canvasdict.fab, canvasdict.layer,
|
|
canvasdict.transform.s * canvasdict.transform.zoom,
|
|
edgeColor, polygonColor, textColor);
|
|
}
|
|
}
|
|
|
|
function prepareCanvas(canvas, flip, transform) {
|
|
var ctx = canvas.getContext("2d");
|
|
ctx.setTransform(1, 0, 0, 1, 0, 0);
|
|
ctx.scale(transform.zoom, transform.zoom);
|
|
ctx.translate(transform.panx, transform.pany);
|
|
if (flip) {
|
|
ctx.scale(-1, 1);
|
|
}
|
|
ctx.translate(transform.x, transform.y);
|
|
ctx.rotate(deg2rad(settings.boardRotation + (flip && settings.offsetBackRotation ? - 180 : 0)));
|
|
ctx.scale(transform.s, transform.s);
|
|
}
|
|
|
|
function prepareLayer(canvasdict) {
|
|
var flip = (canvasdict.layer === "B");
|
|
for (var c of ["bg", "fab", "silk", "highlight"]) {
|
|
prepareCanvas(canvasdict[c], flip, canvasdict.transform);
|
|
}
|
|
}
|
|
|
|
function rotateVector(v, angle) {
|
|
angle = deg2rad(angle);
|
|
return [
|
|
v[0] * Math.cos(angle) - v[1] * Math.sin(angle),
|
|
v[0] * Math.sin(angle) + v[1] * Math.cos(angle)
|
|
];
|
|
}
|
|
|
|
function applyRotation(bbox, flip) {
|
|
var corners = [
|
|
[bbox.minx, bbox.miny],
|
|
[bbox.minx, bbox.maxy],
|
|
[bbox.maxx, bbox.miny],
|
|
[bbox.maxx, bbox.maxy],
|
|
];
|
|
corners = corners.map((v) => rotateVector(v, settings.boardRotation + (flip && settings.offsetBackRotation ? - 180 : 0)));
|
|
return {
|
|
minx: corners.reduce((a, v) => Math.min(a, v[0]), Infinity),
|
|
miny: corners.reduce((a, v) => Math.min(a, v[1]), Infinity),
|
|
maxx: corners.reduce((a, v) => Math.max(a, v[0]), -Infinity),
|
|
maxy: corners.reduce((a, v) => Math.max(a, v[1]), -Infinity),
|
|
}
|
|
}
|
|
|
|
function recalcLayerScale(layerdict, width, height) {
|
|
var flip = (layerdict.layer === "B");
|
|
var bbox = applyRotation(pcbdata.edges_bbox, flip);
|
|
var scalefactor = 0.98 * Math.min(
|
|
width / (bbox.maxx - bbox.minx),
|
|
height / (bbox.maxy - bbox.miny)
|
|
);
|
|
if (scalefactor < 0.1) {
|
|
scalefactor = 1;
|
|
}
|
|
layerdict.transform.s = scalefactor;
|
|
if (flip) {
|
|
layerdict.transform.x = -((bbox.maxx + bbox.minx) * scalefactor + width) * 0.5;
|
|
} else {
|
|
layerdict.transform.x = -((bbox.maxx + bbox.minx) * scalefactor - width) * 0.5;
|
|
}
|
|
layerdict.transform.y = -((bbox.maxy + bbox.miny) * scalefactor - height) * 0.5;
|
|
for (var c of ["bg", "fab", "silk", "highlight"]) {
|
|
canvas = layerdict[c];
|
|
canvas.width = width;
|
|
canvas.height = height;
|
|
canvas.style.width = (width / devicePixelRatio) + "px";
|
|
canvas.style.height = (height / devicePixelRatio) + "px";
|
|
}
|
|
}
|
|
|
|
function redrawCanvas(layerdict) {
|
|
prepareLayer(layerdict);
|
|
drawBackground(layerdict);
|
|
drawHighlightsOnLayer(layerdict);
|
|
}
|
|
|
|
function resizeCanvas(layerdict) {
|
|
var canvasdivid = {
|
|
"F": "frontcanvas",
|
|
"B": "backcanvas"
|
|
} [layerdict.layer];
|
|
var width = document.getElementById(canvasdivid).clientWidth * devicePixelRatio;
|
|
var height = document.getElementById(canvasdivid).clientHeight * devicePixelRatio;
|
|
recalcLayerScale(layerdict, width, height);
|
|
redrawCanvas(layerdict);
|
|
}
|
|
|
|
function resizeAll() {
|
|
resizeCanvas(allcanvas.front);
|
|
resizeCanvas(allcanvas.back);
|
|
}
|
|
|
|
function pointWithinDistanceToSegment(x, y, x1, y1, x2, y2, d) {
|
|
var A = x - x1;
|
|
var B = y - y1;
|
|
var C = x2 - x1;
|
|
var D = y2 - y1;
|
|
|
|
var dot = A * C + B * D;
|
|
var len_sq = C * C + D * D;
|
|
var dx, dy;
|
|
if (len_sq == 0) {
|
|
// start and end of the segment coincide
|
|
dx = x - x1;
|
|
dy = y - y1;
|
|
} else {
|
|
var param = dot / len_sq;
|
|
var xx, yy;
|
|
if (param < 0) {
|
|
xx = x1;
|
|
yy = y1;
|
|
} else if (param > 1) {
|
|
xx = x2;
|
|
yy = y2;
|
|
} else {
|
|
xx = x1 + param * C;
|
|
yy = y1 + param * D;
|
|
}
|
|
dx = x - xx;
|
|
dy = y - yy;
|
|
}
|
|
return dx * dx + dy * dy <= d * d;
|
|
}
|
|
|
|
function modulo(n, mod) {
|
|
return ((n % mod) + mod) % mod;
|
|
}
|
|
|
|
function pointWithinDistanceToArc(x, y, xc, yc, radius, startangle, endangle, d) {
|
|
var dx = x - xc;
|
|
var dy = y - yc;
|
|
var r_sq = dx * dx + dy * dy;
|
|
var rmin = Math.max(0, radius - d);
|
|
var rmax = radius + d;
|
|
|
|
if (r_sq < rmin * rmin || r_sq > rmax * rmax)
|
|
return false;
|
|
|
|
var angle1 = modulo(deg2rad(startangle), 2 * Math.PI);
|
|
var dx1 = xc + radius * Math.cos(angle1) - x;
|
|
var dy1 = yc + radius * Math.sin(angle1) - y;
|
|
if (dx1 * dx1 + dy1 * dy1 <= d * d)
|
|
return true;
|
|
|
|
var angle2 = modulo(deg2rad(endangle), 2 * Math.PI);
|
|
var dx2 = xc + radius * Math.cos(angle2) - x;
|
|
var dy2 = yc + radius * Math.sin(angle2) - y;
|
|
if (dx2 * dx2 + dy2 * dy2 <= d * d)
|
|
return true;
|
|
|
|
var angle = modulo(Math.atan2(dy, dx), 2 * Math.PI);
|
|
if (angle1 > angle2)
|
|
return (angle >= angle2 || angle <= angle1);
|
|
else
|
|
return (angle >= angle1 && angle <= angle2);
|
|
}
|
|
|
|
function pointWithinPad(x, y, pad) {
|
|
var v = [x - pad.pos[0], y - pad.pos[1]];
|
|
v = rotateVector(v, pad.angle);
|
|
if (pad.offset) {
|
|
v[0] -= pad.offset[0];
|
|
v[1] -= pad.offset[1];
|
|
}
|
|
return emptyContext2d.isPointInPath(getCachedPadPath(pad), ...v);
|
|
}
|
|
|
|
function netHitScan(layer, x, y) {
|
|
// Check track segments
|
|
if (settings.renderTracks && pcbdata.tracks) {
|
|
for (var track of pcbdata.tracks[layer]) {
|
|
if ('radius' in track) {
|
|
if (pointWithinDistanceToArc(x, y, ...track.center, track.radius, track.startangle, track.endangle, track.width / 2)) {
|
|
return track.net;
|
|
}
|
|
} else {
|
|
if (pointWithinDistanceToSegment(x, y, ...track.start, ...track.end, track.width / 2)) {
|
|
return track.net;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// Check pads
|
|
if (settings.renderPads) {
|
|
for (var footprint of pcbdata.footprints) {
|
|
for (var pad of footprint.pads) {
|
|
if (pad.layers.includes(layer) && pointWithinPad(x, y, pad)) {
|
|
return pad.net;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
function pointWithinFootprintBbox(x, y, bbox) {
|
|
var v = [x - bbox.pos[0], y - bbox.pos[1]];
|
|
v = rotateVector(v, bbox.angle);
|
|
return bbox.relpos[0] <= v[0] && v[0] <= bbox.relpos[0] + bbox.size[0] &&
|
|
bbox.relpos[1] <= v[1] && v[1] <= bbox.relpos[1] + bbox.size[1];
|
|
}
|
|
|
|
function bboxHitScan(layer, x, y) {
|
|
var result = [];
|
|
for (var i = 0; i < pcbdata.footprints.length; i++) {
|
|
var footprint = pcbdata.footprints[i];
|
|
if (footprint.layer == layer) {
|
|
if (pointWithinFootprintBbox(x, y, footprint.bbox)) {
|
|
result.push(i);
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
function handlePointerDown(e, layerdict) {
|
|
if (e.button != 0 && e.button != 1) {
|
|
return;
|
|
}
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
|
|
if (!e.hasOwnProperty("offsetX")) {
|
|
// The polyfill doesn't set this properly
|
|
e.offsetX = e.pageX - e.currentTarget.offsetLeft;
|
|
e.offsetY = e.pageY - e.currentTarget.offsetTop;
|
|
}
|
|
|
|
layerdict.pointerStates[e.pointerId] = {
|
|
distanceTravelled: 0,
|
|
lastX: e.offsetX,
|
|
lastY: e.offsetY,
|
|
downTime: Date.now(),
|
|
};
|
|
}
|
|
|
|
function handleMouseClick(e, layerdict) {
|
|
if (!e.hasOwnProperty("offsetX")) {
|
|
// The polyfill doesn't set this properly
|
|
e.offsetX = e.pageX - e.currentTarget.offsetLeft;
|
|
e.offsetY = e.pageY - e.currentTarget.offsetTop;
|
|
}
|
|
|
|
var x = e.offsetX;
|
|
var y = e.offsetY;
|
|
var t = layerdict.transform;
|
|
var flip = layerdict.layer === "B";
|
|
if (flip) {
|
|
x = (devicePixelRatio * x / t.zoom - t.panx + t.x) / -t.s;
|
|
} else {
|
|
x = (devicePixelRatio * x / t.zoom - t.panx - t.x) / t.s;
|
|
}
|
|
y = (devicePixelRatio * y / t.zoom - t.y - t.pany) / t.s;
|
|
var v = rotateVector([x, y], -settings.boardRotation + (flip && settings.offsetBackRotation ? - 180 : 0));
|
|
if ("nets" in pcbdata) {
|
|
var net = netHitScan(layerdict.layer, ...v);
|
|
if (net !== highlightedNet) {
|
|
netClicked(net);
|
|
}
|
|
}
|
|
if (highlightedNet === null) {
|
|
var footprints = bboxHitScan(layerdict.layer, ...v);
|
|
if (footprints.length > 0) {
|
|
footprintsClicked(footprints);
|
|
}
|
|
}
|
|
}
|
|
|
|
function handlePointerLeave(e, layerdict) {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
|
|
if (!settings.redrawOnDrag) {
|
|
redrawCanvas(layerdict);
|
|
}
|
|
|
|
delete layerdict.pointerStates[e.pointerId];
|
|
}
|
|
|
|
function resetTransform(layerdict) {
|
|
layerdict.transform.panx = 0;
|
|
layerdict.transform.pany = 0;
|
|
layerdict.transform.zoom = 1;
|
|
redrawCanvas(layerdict);
|
|
}
|
|
|
|
function handlePointerUp(e, layerdict) {
|
|
if (!e.hasOwnProperty("offsetX")) {
|
|
// The polyfill doesn't set this properly
|
|
e.offsetX = e.pageX - e.currentTarget.offsetLeft;
|
|
e.offsetY = e.pageY - e.currentTarget.offsetTop;
|
|
}
|
|
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
|
|
if (e.button == 2) {
|
|
// Reset pan and zoom on right click.
|
|
resetTransform(layerdict);
|
|
layerdict.anotherPointerTapped = false;
|
|
return;
|
|
}
|
|
|
|
// We haven't necessarily had a pointermove event since the interaction started, so make sure we update this now
|
|
var ptr = layerdict.pointerStates[e.pointerId];
|
|
ptr.distanceTravelled += Math.abs(e.offsetX - ptr.lastX) + Math.abs(e.offsetY - ptr.lastY);
|
|
|
|
if (e.button == 0 && ptr.distanceTravelled < 10 && Date.now() - ptr.downTime <= 500) {
|
|
if (Object.keys(layerdict.pointerStates).length == 1) {
|
|
if (layerdict.anotherPointerTapped) {
|
|
// This is the second pointer coming off of a two-finger tap
|
|
resetTransform(layerdict);
|
|
} else {
|
|
// This is just a regular tap
|
|
handleMouseClick(e, layerdict);
|
|
}
|
|
layerdict.anotherPointerTapped = false;
|
|
} else {
|
|
// This is the first finger coming off of what could become a two-finger tap
|
|
layerdict.anotherPointerTapped = true;
|
|
}
|
|
} else {
|
|
if (!settings.redrawOnDrag) {
|
|
redrawCanvas(layerdict);
|
|
}
|
|
layerdict.anotherPointerTapped = false;
|
|
}
|
|
|
|
delete layerdict.pointerStates[e.pointerId];
|
|
}
|
|
|
|
function handlePointerMove(e, layerdict) {
|
|
if (!layerdict.pointerStates.hasOwnProperty(e.pointerId)) {
|
|
return;
|
|
}
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
|
|
if (!e.hasOwnProperty("offsetX")) {
|
|
// The polyfill doesn't set this properly
|
|
e.offsetX = e.pageX - e.currentTarget.offsetLeft;
|
|
e.offsetY = e.pageY - e.currentTarget.offsetTop;
|
|
}
|
|
|
|
var thisPtr = layerdict.pointerStates[e.pointerId];
|
|
|
|
var dx = e.offsetX - thisPtr.lastX;
|
|
var dy = e.offsetY - thisPtr.lastY;
|
|
|
|
// If this number is low on pointer up, we count the action as a click
|
|
thisPtr.distanceTravelled += Math.abs(dx) + Math.abs(dy);
|
|
|
|
if (Object.keys(layerdict.pointerStates).length == 1) {
|
|
// This is a simple drag
|
|
layerdict.transform.panx += devicePixelRatio * dx / layerdict.transform.zoom;
|
|
layerdict.transform.pany += devicePixelRatio * dy / layerdict.transform.zoom;
|
|
} else if (Object.keys(layerdict.pointerStates).length == 2) {
|
|
var otherPtr = Object.values(layerdict.pointerStates).filter((ptr) => ptr != thisPtr)[0];
|
|
|
|
var oldDist = Math.sqrt(Math.pow(thisPtr.lastX - otherPtr.lastX, 2) + Math.pow(thisPtr.lastY - otherPtr.lastY, 2));
|
|
var newDist = Math.sqrt(Math.pow(e.offsetX - otherPtr.lastX, 2) + Math.pow(e.offsetY - otherPtr.lastY, 2));
|
|
|
|
var scaleFactor = newDist / oldDist;
|
|
|
|
if (scaleFactor != NaN) {
|
|
layerdict.transform.zoom *= scaleFactor;
|
|
|
|
var zoomd = (1 - scaleFactor) / layerdict.transform.zoom;
|
|
layerdict.transform.panx += devicePixelRatio * otherPtr.lastX * zoomd;
|
|
layerdict.transform.pany += devicePixelRatio * otherPtr.lastY * zoomd;
|
|
}
|
|
}
|
|
|
|
thisPtr.lastX = e.offsetX;
|
|
thisPtr.lastY = e.offsetY;
|
|
|
|
if (settings.redrawOnDrag) {
|
|
redrawCanvas(layerdict);
|
|
}
|
|
}
|
|
|
|
function handleMouseWheel(e, layerdict) {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
var t = layerdict.transform;
|
|
var wheeldelta = e.deltaY;
|
|
if (e.deltaMode == 1) {
|
|
// FF only, scroll by lines
|
|
wheeldelta *= 30;
|
|
} else if (e.deltaMode == 2) {
|
|
wheeldelta *= 300;
|
|
}
|
|
var m = Math.pow(1.1, -wheeldelta / 40);
|
|
// Limit amount of zoom per tick.
|
|
if (m > 2) {
|
|
m = 2;
|
|
} else if (m < 0.5) {
|
|
m = 0.5;
|
|
}
|
|
t.zoom *= m;
|
|
var zoomd = (1 - m) / t.zoom;
|
|
t.panx += devicePixelRatio * e.offsetX * zoomd;
|
|
t.pany += devicePixelRatio * e.offsetY * zoomd;
|
|
redrawCanvas(layerdict);
|
|
}
|
|
|
|
function addMouseHandlers(div, layerdict) {
|
|
div.addEventListener("pointerdown", function(e) {
|
|
handlePointerDown(e, layerdict);
|
|
});
|
|
div.addEventListener("pointermove", function(e) {
|
|
handlePointerMove(e, layerdict);
|
|
});
|
|
div.addEventListener("pointerup", function(e) {
|
|
handlePointerUp(e, layerdict);
|
|
});
|
|
var pointerleave = function(e) {
|
|
handlePointerLeave(e, layerdict);
|
|
}
|
|
div.addEventListener("pointercancel", pointerleave);
|
|
div.addEventListener("pointerleave", pointerleave);
|
|
div.addEventListener("pointerout", pointerleave);
|
|
|
|
div.onwheel = function(e) {
|
|
handleMouseWheel(e, layerdict);
|
|
}
|
|
for (var element of [div, layerdict.bg, layerdict.fab, layerdict.silk, layerdict.highlight]) {
|
|
element.addEventListener("contextmenu", function(e) {
|
|
e.preventDefault();
|
|
}, false);
|
|
}
|
|
}
|
|
|
|
function setRedrawOnDrag(value) {
|
|
settings.redrawOnDrag = value;
|
|
writeStorage("redrawOnDrag", value);
|
|
}
|
|
|
|
function setBoardRotation(value) {
|
|
settings.boardRotation = value * 5;
|
|
writeStorage("boardRotation", settings.boardRotation);
|
|
document.getElementById("rotationDegree").textContent = settings.boardRotation;
|
|
resizeAll();
|
|
}
|
|
|
|
function setOffsetBackRotation(value) {
|
|
settings.offsetBackRotation = value;
|
|
writeStorage("offsetBackRotation", value);
|
|
resizeAll();
|
|
}
|
|
|
|
function initRender() {
|
|
allcanvas = {
|
|
front: {
|
|
transform: {
|
|
x: 0,
|
|
y: 0,
|
|
s: 1,
|
|
panx: 0,
|
|
pany: 0,
|
|
zoom: 1,
|
|
},
|
|
pointerStates: {},
|
|
anotherPointerTapped: false,
|
|
bg: document.getElementById("F_bg"),
|
|
fab: document.getElementById("F_fab"),
|
|
silk: document.getElementById("F_slk"),
|
|
highlight: document.getElementById("F_hl"),
|
|
layer: "F",
|
|
},
|
|
back: {
|
|
transform: {
|
|
x: 0,
|
|
y: 0,
|
|
s: 1,
|
|
panx: 0,
|
|
pany: 0,
|
|
zoom: 1,
|
|
},
|
|
pointerStates: {},
|
|
anotherPointerTapped: false,
|
|
bg: document.getElementById("B_bg"),
|
|
fab: document.getElementById("B_fab"),
|
|
silk: document.getElementById("B_slk"),
|
|
highlight: document.getElementById("B_hl"),
|
|
layer: "B",
|
|
}
|
|
};
|
|
addMouseHandlers(document.getElementById("frontcanvas"), allcanvas.front);
|
|
addMouseHandlers(document.getElementById("backcanvas"), allcanvas.back);
|
|
}
|