43 lines
1.6 KiB
HTML
43 lines
1.6 KiB
HTML
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<!DOCTYPE html>
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<html>
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<head>
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<title>Jimp browser example 1</title>
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</head>
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<body>
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<!-- Demonstrates loading a local file using Jimp on the main thread -->
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<script src="../lib/jimp.min.js"></script>
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<script>
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function dropShadow(x, y, b, a) {
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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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var orig = this.clone();
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this.scan(0, 0, this.bitmap.width, this.bitmap.height, function (x, y, idx) {
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this.bitmap.data[ idx + 0 ] = 0;
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this.bitmap.data[ idx + 1 ] = 0;
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this.bitmap.data[ idx + 2 ] = 0;
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this.bitmap.data[ idx + 3 ] = this.bitmap.data[ idx + 3 ] * a;
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});
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// this.resize(this.bitmap.width + Math.abs(x) + b, this.bitmap.height + Math.abs(y) + b);
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var x1 = Math.max(x * -1, 0) + b;
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var y1 = Math.max(y * -1, 0) + b;
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img.composite(this, x1, y1);
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img.blur(b);
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img.composite(orig, x1 - x, y1 - y);
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//img.autocrop();
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return img;
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}
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Jimp.read("dice.png").then(function (img) {
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console.log(img.getMIME(), img.getExtension());
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var img = dropShadow.call(img, 20, 20, 20, 0.3)
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img.getBase64(Jimp.AUTO, function (err, src) {
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var img = document.createElement("img");
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img.setAttribute("src", src);
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document.body.appendChild(img);
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});
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});
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</script>
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</body>
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</html>
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