paper
Version:
The Swiss Army Knife of Vector Graphics Scripting
64 lines (53 loc) • 2.08 kB
HTML
<html>
<head>
<meta charset="UTF-8">
<title>Simplify</title>
<link rel="stylesheet" href="../css/style.css">
<script type="text/javascript" src="../../dist/paper-full.js"></script>
<script type="text/paperscript" canvas="canvas">
var path;
var textItem = new PointText({
content: 'Click and drag to draw a line.',
point: new Point(20, 30),
fillColor: 'black',
});
function onMouseDown(event) {
// If we produced a path before, deselect it:
if (path) {
path.selected = false;
}
// Create a new path and set its stroke color to black:
path = new Path({
segments: [event.point],
strokeColor: 'black',
// Select the path, so we can see its segment points:
fullySelected: true
});
}
// While the user drags the mouse, points are added to the path
// at the position of the mouse:
function onMouseDrag(event) {
path.add(event.point);
// Update the content of the text item to show how many
// segments it has:
textItem.content = 'Segment count: ' + path.segments.length;
}
// When the mouse is released, we simplify the path:
function onMouseUp(event) {
var segmentCount = path.segments.length;
// When the mouse is released, simplify it:
path.simplify(10);
// Select the path, so we can see its segments:
path.fullySelected = true;
var newSegmentCount = path.segments.length;
var difference = segmentCount - newSegmentCount;
var percentage = 100 - Math.round(newSegmentCount / segmentCount * 100);
textItem.content = difference + ' of the ' + segmentCount + ' segments were removed. Saving ' + percentage + '%';
}
</script>
</head>
<body>
<canvas id="canvas" resize></canvas>
</body>
</html>