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OpenGL How to plot xyz plot data like in civil application?

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Hello I am working on soem GIS type application in which i will be reading data file from the instrument which will provide me x,y,z cordinates of several points. I have to plot map based on these cordinates. Just want to know that has any body worked on these kinds of projects? What are steps taken while plotting such cordinates? Functionality to be provided like : 1.0 Go To xyz cordinate have to be provided 2.0 Zoom in and Out have to be provided 3.0 Panning 4.0 Plotting contours For 3D i am considering OpenGL and for 2D i will work with MFC using either GDI or GDI+ I just want to know the steps. Thanking you Sandeep Arya

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