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distorted fat line in XY graph

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Hello,

 

sometimes, depending on my data, the call to PlotXY ( ,,,,,,,VAL_FAT_LINE,,,, ); results in somewhat irritating lines; I imagine that it has to do with antialiasing which is enabled for my graph but still I feel that the line could be drawn nicer, see the left Gaussian below:

graph.png

 

I can add that if I zoom into the graph the line looks o.k., so I can definitely exclude a problem with the data set.

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Hello Wolfgang,

 

Would you be able to post a project which reproduces this type of graph rendering?  I have been trying to reproduce the issue using PlotXY, but have been thus far unsuccessful.

 

Thank you,

Daniel Dorroh
National Instruments
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I hope so... but it will be few days until I find some time...

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OK,

 

I have prepared a demo showing the effect.

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Solution
Accepted by topic author Wolfgang

Hello Wolfgang,

 

Thank you for creating that project—I have been able to reproduce the issue as far back as LabWindows/CVI 2009.  I have filed a bug report, 432165, for this issue.  

 

As a note, I noticed that I could resolve the incorrect rendering by doing one of the following things:

  • Disable Anti-aliasing
  • Enable Plot Legends
  • Disable Y-Axis Labels
  • Resize the Graph

Please let me know if you find more ways to get around this issue.  We appreciate your feedback!

 

Warm Regards,

Daniel Dorroh
National Instruments
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Hi and thanks for confirmation!

 

Also thanks for the note of how to resolve it, (but I prefer to stick to my current settings, hoping that the fix won't be complicated Smiley Wink)

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unfortunately this issue has not been fixed so far Smiley Sad

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