plcont, coordinate transformation

Cross-platform, scientific graphics plotting library

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Status: open

Owner: nobody

Labels: None

Priority: 5

Updated: 2011-12-04

Created: 2011-12-04

Creator: Pascal

Private: No

Hi,

It seems that there is a bug in plcont when using f90 binding

Using the same parameters for coordinate transformations compare to plimagefr gives a wrong contour.
See example 16:
http://plplot.sourceforge.net/examples.php?demo=16&lbind=F95

I also have a test case attached. data to use it are here:
http://pascal.parois.net/public/data (quite big, sorry)

I need to transform xtrans(i,j) this way to fix it:
xtrans(i,j)= mod(xtrans(i,j)+ytrans(i,j), 2*planerealhalfwidth)

PS: the use of mod causes glitches in the contour, it's not a bug of plplot