LabWindows/CVI

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graph CANVAS

Why & How ?

When I plot a series of(about 10000 plots) curves using GRAPH control(PlotXY), the refesh speed is very slow. But when I draw a CANVAS control overlay on that, the refesh speed become quite fast !

how can I get such speed just use  GRAPH control ? Anybody can help me?

my email 603240607@qq.com 

 

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Hello hasen,

 

Can you provide more information?  

Are you actually adding 10,000 plots to the graph, or does each curve you plot contain 10,000 points? Which version of LabWindows/CVI are you using?  At what rate are you attempting to update your graph?  How does your program implement this update?

 

Thanks,

Daniel Dorroh
National Instruments
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