I'll make a small program that draw a curve function 2D using openGL, doable?

1, I have a lot of sample data, it can be map plot a 2D of the distribution of the dot.

2, then I need to climb a curve function, such as:

CVI can use OpenGL functions: there is a specific OpenGL instrument located in \toolslib\custctrl\cviogl.fp. There is also an example of program that actually use the OGL functions to draw 3D sufraces: see the code in \apps\oglscxi fodler.

That said, because you're dealing with 2D plots, do you really need OpenGL? All the steps you mentioned above could be addressed with the standard of CVI functions: for example, you can use a PlotXY () call properly formatted to draw the curves as in step #1, PolyFit () for calculating the interpolating to step #2 (which also goves the formula you as in step #5) and cursors to draw research as in the #4 step.

Tags: NI Software

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