[Gnuplot-bugs] help on contour plot

[hania m. <han...@ya...>]

Dear Mr/Mrs

I would be highely grateful if you could help on this.

I would like to plot a data file of 3 columns as a contour plot(density plot).
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set pm3d map
set dgrid3d 10,10

 splot 'myfile'
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But, it is giving me unclear

 plot, as the data file should plot a triangular , but the plot give me some rectangular meshed area and

 the triangular inside. I mean the triangular is surrounding by extra meshed area. How can I eliminate this area?


thanks