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i try to develop a c++ no-GUI GIS core(i want the core have no GUI related things, do not use any GUI library) and I can figure out how to do other things except the drawing part. when cope with 2D drawing, it must assign the drawing context, so it could not be platform-independent? For example , in windows, i need get the handle of DC. So i think always the 2D-drawing is related to platform.

how could i make the drawing things platform- independent? any one have some advises?

  • I don't think the "GIS" part holds any bearing over the "cross-platform drawing stack" part of your problem. You may want to ask this on Stack Overflow. – Jason Scheirer Oct 29 '14 at 15:08
  • Cross-platform GUIs for C++ programs are typically developed using Qt these days. – WhiteboxDev Oct 29 '14 at 15:43

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