Direction of measurements

OrthoGraph tries to keep the angles unchanged. If it is not possible anymore (because of the details of your measurements) OrthoGraph will update the angles related to the measurement.
When you measure, always the secondly chosen point will be moved from the first point.
So when you measure from left to right then the right point will be updated. When you measure from right to left then the left point will be updated.

video:
https://www.youtube.com/watch?feature=player_embedded&v=cRJ8CkwDP8U



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