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expand example to create a new file

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Luke Page 2015-10-09 07:49:42 +01:00
parent 912df207b5
commit 45033d4031
1 changed files with 19 additions and 6 deletions
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25
examples/newfile.js
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@ -1,10 +1,23 @@
var PNG = require("../lib/png").PNG; var PNG = require("../lib/png").PNG;
(new PNG({width:1,height:1})).pack() var newfile = new PNG({width:10,height:10});
.on('data', function(data) {
console.log('data', data); for (var y = 0; y < png.height; y++) {
}) for (var x = 0; x < png.width; x++) {
.on('end', function() { var idx = (png.width * y + x) << 2;
var col = x < (png.width >> 1) ^ y < (png.height >> 1) ? 0xe5 : 0xff;
png.data[idx] = col;
png.data[idx + 1] = col;
png.data[idx + 2] = col;
png.data[idx + 3] = 0xff;
}
}
newfile.pack()
.pipe(fs.createWriteStream(__dirname + '/newfile.png'))
.on('finish', function() {
console.log('bitmap:', this.data); console.log('bitmap:', this.data);
console.log('end !'); console.log('end !');
}); });