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bargasteh

CAD system

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Hello everybody. I want to write a simple 2D CAD system, it will be a very simple CAD drawing program that help us to create almost any shape using line, circle, square, etc What is the best way to approach this project? How can I make it flexible and expandable ? I want my CAD program to be able to import other 2D CAD formats and possibly manipulate them. Thank you for your help, please come forward if you have experience in making 2D CAD systems. Thank you In advance

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You should implement the drawing with primitive entity objects, such as line, circle, arc, dimensioning, ellipse and such. Then, you can implement operations which cut and extend the primitives against the others, to establish a very effective basic modeling toolset.

You could obtain an AutoCAD trial version, and see how they do it. It's very easy to derive your own program by using their program as an example, although it is a lot of work to write such an app from scratch.

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