Created
July 3, 2018 18:08
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| //the minimum boudning box around the current drawing | |
| const mbb = getMinBox() | |
| //cacluate the dpi of the current window | |
| const dpi = window.devicePixelRatio | |
| //extract the image data | |
| const imgData = canvas.contextContainer.getImageData(mbb.min.x * dpi, mbb.min.y * dpi, | |
| (mbb.max.x - mbb.min.x) * dpi, (mbb.max.y - mbb.min.y) * dpi); |
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