30 lines
1.1 KiB
JavaScript
30 lines
1.1 KiB
JavaScript
// Define this once and before it will be called, hence at the top of this file
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function DrawRefimg(fig, img, canvas, orig_face )
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{
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// FIXME: should get this from shared.py, not sure why this doesnt work at present
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thumbsize=256
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context=canvas.getContext('2d')
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// another call to this func will occur on load, so skip this one
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if( img.width == 0 )
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return
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// only set canvas.width once we have valid img dimensions
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canvas.width=img.width/2
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// actually draw the pixel images to the canvas at the right size
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context.drawImage(img, 0, 0, img.width/(img.height/canvas.height), canvas.height);
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fig.width(canvas.width)
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// draw rectangle on face
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context.beginPath();
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new_x=(orig_face.x/orig_face.orig_w)*img.width/(img.height/canvas.height)
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new_y=(orig_face.y/orig_face.orig_h)*thumbsize/(img.height/canvas.height)
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new_w=(orig_face.w/orig_face.orig_w)*img.width/(img.height/canvas.height)
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new_h=(orig_face.h/orig_face.orig_h)*thumbsize/(img.height/canvas.height)
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context.rect(new_x, new_y, new_w, new_h)
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context.lineWidth = 2;
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context.strokeStyle = 'green';
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context.stroke();
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}
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