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Alex Rivera
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I want to know how to work out the new co-ordinates for a point when rotated by an angle relative to another point. I have a block arrow and want to rotate it by an angle theta relative to a point in the middle of the base of the arrow. This is required to allow me to draw a polygon between 2 onscreen controls. I can't use and rotate an image. From what I have considered so far what complicates the matter further is that the origin of a screen is in the top left hand corner.
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