Created
January 2, 2014 18:11
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Example of image resizing
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module.exports = { | |
index: function(req,res){ | |
var name = req.params.name; | |
var sub = name.split('.'),fname = sub[sub.length-2],ext = sub[sub.length-1]; | |
var imgpath = __dirname+'/../../assets/img/'+fname+'.'+ext; | |
require('fs').exists(imgpath, function(exist){ | |
if(exist){ | |
var Canvas = require('canvas'), | |
Image = Canvas.Image, | |
img = new Image; | |
img.onerror = function(err){ | |
throw err; | |
}; | |
img.onload = function(){ | |
var width = parseInt(req.params.x); | |
var height = parseInt(req.params.y); | |
if(width > 2048){ | |
width = 2048; | |
} | |
if(height > 2048){ | |
height = 2048; | |
} | |
var canvas = new Canvas(width, height); | |
var ctx = canvas.getContext('2d'); | |
ctx.imageSmoothingEnabled = false; | |
ctx.drawImage(img, 0, 0, width, height); | |
canvas.toBuffer(function(err,buf){ | |
if(err){ | |
console.log(err); | |
res.status(500); | |
res.end(); | |
}else{ | |
res.status(200); | |
res.end(buf,'binary'); | |
} | |
}); | |
}; | |
img.src = imgpath; | |
}else{ | |
res.status(404); | |
res.end(); | |
} | |
}); | |
}, | |
_config: {} | |
}; |
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