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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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2D transformations as answer to “delphi – Change orientation of a shape” – Stack Overflow

Posted by jpluimers on 2013/07/09

Sometimes a generic answer to a specific answer gives people a lot more insight into what they actually want to accomplish than a specific answer.

Plus that the knowledge does not only apply to VCL in any Delphi version: it works in any development environment where you can draw.

That’s why I like this 2D transformation answer so much:

A Delphi TShape is nothing more than drawing a bunch of vector graphics.

You can “rotate” the X/Y coordinates themselves with a 2-D transformation matrix. Computer Graphics 101:

Thanks paulsm4!


delphi – Change orientation of a shape – Stack Overflow.

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