I have been doing some checking on the xy rotations and the results are....strange, or at least unexpected. I have an 28 pin SOIC land pattern and a two pin inductor land pattern (as an example) and get different rotations for each of them. Both are on the top side of the board. I expected the parts to be rotated relative to their library references, but the SOIC part has an extra 90º rotation. Rotation in pcb increase in a clockwise direction. I've attached a test .pcb file and the resulting xy coordinates. I am guessing that rotation (like centroid data) is calculated by some algorithm, what is the basic thought behind the calculation? -- Turn ideas into products - http://www.engineersimplicity.com The Art of Engineering - http://blog.engineersimplicity.com
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pcb_rotation.zip
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