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Adds comments to Stroke tool for drawing lines.

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Smie 2017-05-14 16:24:18 -06:00 committed by Julian Descottes
parent e819503cc5
commit cd560012e1
1 changed files with 3 additions and 0 deletions
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3
src/js/tools/drawing/Stroke.js
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@ -97,11 +97,13 @@
linePixels = pskl.PixelUtils.getLinePixels(col, this.startCol, row, this.startRow); linePixels = pskl.PixelUtils.getLinePixels(col, this.startCol, row, this.startRow);
} }
//draw the square ends of the line
pskl.PixelUtils.resizePixel(linePixels[0].col, linePixels[0].row, penSize) pskl.PixelUtils.resizePixel(linePixels[0].col, linePixels[0].row, penSize)
.forEach(function (point) {targetFrame.setPixel(point[0], point[1], color);}); .forEach(function (point) {targetFrame.setPixel(point[0], point[1], color);});
pskl.PixelUtils.resizePixel(linePixels[linePixels.length - 1].col, linePixels[linePixels.length - 1].row, penSize) pskl.PixelUtils.resizePixel(linePixels[linePixels.length - 1].col, linePixels[linePixels.length - 1].row, penSize)
.forEach(function (point) {targetFrame.setPixel(point[0], point[1],color);}); .forEach(function (point) {targetFrame.setPixel(point[0], point[1],color);});
//for each step along the line, draw an x centered on that pixel of size penSize
linePixels.forEach(function (point) { linePixels.forEach(function (point) {
for (var i = 0; i < penSize; i++) { for (var i = 0; i < penSize; i++) {
targetFrame.setPixel( targetFrame.setPixel(
@ -110,6 +112,7 @@
targetFrame.setPixel( targetFrame.setPixel(
point.col - Math.floor(penSize / 2) + i, point.row + Math.ceil(penSize / 2) - i - 1, color point.col - Math.floor(penSize / 2) + i, point.row + Math.ceil(penSize / 2) - i - 1, color
); );
//draw an additional x directly next to the first to prevent unwanted dithering
if (i !== 0) { if (i !== 0) {
targetFrame.setPixel( targetFrame.setPixel(
point.col - Math.floor(penSize / 2) + i, point.row - Math.floor(penSize / 2) + i - 1, color point.col - Math.floor(penSize / 2) + i, point.row - Math.floor(penSize / 2) + i - 1, color