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trevorsheridan/size.sh

Created August 1, 2012 09:46
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Calculate the dimensions of a bitmap given a rotation and rotation width.
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size.sh
#!/bin/bash
temp="/tmp/size-"$(date +"%s")"-tmp.png"
em=10
convert $1 -rotate $2 $temp
convert $temp -scale $3 -rotate $(echo "$2 * -1" | bc) -trim -shave 2x2 $temp
identify -format "dimensions: %w x %h pixels\nwidth: %[fx:w/$em]em;\nheight: %[fx:h/$em]em;" $temp
rm -rf $temp
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