| 1 | <!DOCTYPE html>
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| 2 | <html>
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| 3 | <head>
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| 4 | <meta charset="UTF-8">
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| 5 | <title>Simplify</title>
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| 6 | <link rel="stylesheet" href="../css/style.css">
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| 7 | <script type="text/javascript" src="../../dist/paper.js"></script>
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| 8 | <script type="text/paperscript" canvas="canvas">
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| 9 | var path;
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| 10 |
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| 11 | var textItem = new PointText({
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| 12 | content: 'Click and drag to draw a line.',
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| 13 | point: new Point(20, 30),
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| 14 | fillColor: 'black',
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| 15 | });
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| 16 |
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| 17 | function onMouseDown(event) {
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| 18 | // If we produced a path before, deselect it:
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| 19 | if (path) {
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| 20 | path.selected = false;
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| 21 | }
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| 22 |
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| 23 | // Create a new path and set its stroke color to black:
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| 24 | path = new Path({
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| 25 | segments: [event.point],
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| 26 | strokeColor: 'black',
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| 27 | // Select the path, so we can see its segment points:
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| 28 | fullySelected: true
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| 29 | });
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| 30 | }
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| 31 |
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| 32 | // While the user drags the mouse, points are added to the path
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| 33 | // at the position of the mouse:
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| 34 | function onMouseDrag(event) {
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| 35 | path.add(event.point);
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| 36 |
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| 37 | // Update the content of the text item to show how many
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| 38 | // segments it has:
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| 39 | textItem.content = 'Segment count: ' + path.segments.length;
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| 40 | }
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| 41 |
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| 42 | // When the mouse is released, we simplify the path:
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| 43 | function onMouseUp(event) {
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| 44 | var segmentCount = path.segments.length;
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| 45 |
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| 46 | // When the mouse is released, simplify it:
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| 47 | path.simplify(10);
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| 48 |
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| 49 | // Select the path, so we can see its segments:
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| 50 | path.fullySelected = true;
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| 51 |
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| 52 | var newSegmentCount = path.segments.length;
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| 53 | var difference = segmentCount - newSegmentCount;
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| 54 | var percentage = 100 - Math.round(newSegmentCount / segmentCount * 100);
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| 55 | textItem.content = difference + ' of the ' + segmentCount + ' segments were removed. Saving ' + percentage + '%';
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| 56 |
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| 57 | }
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| 58 | </script>
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| 59 | </head>
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| 60 | <body>
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| 61 | <canvas id="canvas" resize></canvas>
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| 62 | </body>
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| 63 | </html> |
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