John Wilcox

John Wilcox

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Plotting ellipses

Jan 31 2011 5:50 PM
I have a program in C# that requires more plotting options that the typical line plot.  I do need to plot a line based on points but I also need to plot ellipses around different points on that line based on +/- values.  I hope that makes sense.  Basically, I just need to be able to plot 4 points then draw a smooth, curved line connecting them and repeat.  It's also fairly important to zoom in/out but that is pretty basic with plotting programs.

I have tried an older version of Steema TeeChart (used on another project) and Zedgraph but both fall short.  Zedgraph kind of lets you draw an ellipse but it comes out shaped like a teardrop.  I have also researched several others but see no signs that they will be any different.  

I suppose one option is to do it all myself and learn how to do graphics but that would be a huge task since I have no experience with that.  I have seen other professional programs do similar things with 3D graphics but not sure how that was accomplished.  

Any thoughts or suggestions on how to do this?  Thanks in advance.  

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