1 | <!DOCTYPE html>
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2 | <html>
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3 | <head>
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4 | <title>Jimp browser example 1</title>
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5 | </head>
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6 | <body>
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7 |
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8 |
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9 | <script src="../lib/jimp.min.js"></script>
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10 | <script>
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11 |
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12 | function dropShadow(x, y, b, a) {
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13 | var img = new Jimp(this.bitmap.width + Math.abs(x*2) + (b*2), this.bitmap.height + Math.abs(y*2) + (b*2));
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14 | var orig = this.clone();
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15 | this.scan(0, 0, this.bitmap.width, this.bitmap.height, function (x, y, idx) {
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16 | this.bitmap.data[ idx + 0 ] = 0;
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17 | this.bitmap.data[ idx + 1 ] = 0;
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18 | this.bitmap.data[ idx + 2 ] = 0;
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19 | this.bitmap.data[ idx + 3 ] = this.bitmap.data[ idx + 3 ] * a;
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20 | });
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21 |
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22 |
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23 | var x1 = Math.max(x * -1, 0) + b;
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24 | var y1 = Math.max(y * -1, 0) + b;
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25 | img.composite(this, x1, y1);
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26 | img.blur(b);
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27 | img.composite(orig, x1 - x, y1 - y);
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28 |
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29 | return img;
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30 | }
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31 | Jimp.read("dice.png").then(function (img) {
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32 | console.log(img.getMIME(), img.getExtension());
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33 | var img = dropShadow.call(img, 20, 20, 20, 0.3)
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34 | img.getBase64(Jimp.AUTO, function (err, src) {
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35 | var img = document.createElement("img");
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36 | img.setAttribute("src", src);
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37 | document.body.appendChild(img);
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38 | });
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39 | });
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40 | </script>
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41 |
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42 | </body>
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43 | </html> |
\ | No newline at end of file |