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109 lines
5.1 KiB
109 lines
5.1 KiB
<!doctype html>
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<html>
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<head>
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<title>strong tag</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
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<script type="text/javascript" src="jquery-2.0.3.js"></script>
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<script type="text/javascript">
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var margin, s1, s2, s3, hook_separation, h1, h2, h3, h4, hook_overlap, hook_height, stroke_width, staple_rise, staple_offset, staple_width, hook_bite;
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var canvas, ctx;
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var w = this;
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$(document).ready(function() {
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canvas = $('canvas')[0];
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ctx = canvas.getContext("2d");
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$('input').each(function() { w[$(this).attr('name')] = parseFloat($(this).val());});
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$('input').on('change', function() { w[$(this).attr('name')] = parseFloat($(this).val()); redraw(); });
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redraw();
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});
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function redraw() {
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h1 = margin;
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s1 = margin;
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staple_rise = staple_offset;
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staple_leg_height = staple_offset;
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interior_margin = margin;
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ctx.fillStyle = '#000'
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ctx.fillRect(0, 0, canvas.width, canvas.height);
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style();
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ctx.save();
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draw_on(ctx);
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ctx.translate(0, canvas.height);
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ctx.scale(1, -1);
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draw_on(ctx);
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ctx.translate(canvas.width, 0);
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ctx.scale(-1, 1);
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draw_on(ctx);
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ctx.translate(0, canvas.height);
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ctx.scale(1, -1);
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draw_on(ctx);
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ctx.restore();
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}
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function style() {
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var foreground = 'white';
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ctx.fillStyle = foreground;
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ctx.strokeStyle = foreground;
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ctx.lineJoin = "miter";
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ctx.lineCap = "square";
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ctx.lineWidth = stroke_width;
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}
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function draw_on(context) {
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// t
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var p1 = new Path2D();
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p1.moveTo(margin, margin);
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p1.lineTo(margin, canvas.height / 2);
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p1.lineTo(margin + s1, canvas.height / 2);
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ctx.stroke(p1)
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// arms
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var p2 = new Path2D();
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p2.moveTo(margin + s1, (canvas.height / 2) - h1);
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p2.lineTo(margin + s1, margin);
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p2.lineTo((canvas.width / 2) - hook_separation, margin);
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p2.lineTo((canvas.width / 2) - hook_separation, margin + hook_height);
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p2.lineTo((canvas.width / 2) - staple_width - hook_bite, margin + hook_height);
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ctx.stroke(p2);
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// staple
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var p3 = new Path2D();
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p3.moveTo((canvas.width / 2) - hook_separation + hook_bite, margin + staple_leg_height);
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p3.lineTo((canvas.width / 2) - staple_width, margin + staple_leg_height);
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p3.lineTo((canvas.width / 2) - staple_width, margin + hook_height + staple_offset);
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p3.lineTo((canvas.width / 2), margin + hook_height + staple_rise);
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ctx.stroke(p3);
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//interior
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var big_rect_x1 = margin + s1 + interior_margin;
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var big_rect_y1 = margin + interior_margin;
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var big_rect_x2 = (canvas.width / 2) - staple_width - interior_margin;
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var big_rect_y2 = (canvas.height / 2) + 1;
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ctx.fillRect(big_rect_x1, big_rect_y1, big_rect_x2 - big_rect_x1, big_rect_y2 - big_rect_y1);
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var small_rect_x1 = margin + s1 + interior_margin;
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var small_rect_y1 = margin + hook_height + staple_rise + interior_margin;
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var small_rect_x2 = (canvas.width / 2) + 1;
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var small_rect_y2 = (canvas.height / 2) + 1;
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ctx.fillRect(small_rect_x1, small_rect_y1, small_rect_x2 - small_rect_x1, small_rect_y2 - small_rect_y1);
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}
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</script>
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<style>
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canvas {
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width: 600px;
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height: 250px;
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border: 1px solid black;
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display: block;
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}
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</style>
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</head>
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<body>
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<canvas width="600" height="250"></canvas>
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<p><label for="stroke_width">channel width: </label><input type="range" name="stroke_width" min="0" max="20" step="2" value="8" /></p>
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<p><label for="margin">margin: </label><input type="range" name="margin" min="10" max="40" value="20"/></p>
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<p><label for="hook_separation">hook separation: </label><input type="range" name="hook_separation" min="5" max="40" value="16"/></p>
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<p><label for="hook_height">hooks height: </label><input type="range" name="hook_height" min="20" max="60" value="37"/></p>
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<p><label for="staple_width">staple width: </label><input type="range" name="staple_width" min="0" max="70" value="50"/></p>
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<p><label for="staple_offset">staple offset: </label><input type="range" name="staple_offset" min="5" max="60" value="17"/></p>
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<p><label for="hook_bite">hook bite: </label><input type="range" name="hook_bite" min="-40" max="-5" value="-15"/></p>
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</body>
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</html>
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