[R] Lattice wireframe: How to avoid drawing lines around polygons when using shade=TRUE

From: Oliver M. Haynold <inquiries_at_haynold.com>
Date: Sun, 27 Jul 2008 05:00:48 +0000 (UTC)

I am using wireframe from the lattice package, with the shade option set to TRUE. When I output to PDF or Postscript, a line gets drawn around each polygon of my surface which causes ugly Moiré effects and doesn't make sense in my application (think the plot of Maunga Whau--gridlines don't make sense). This does not happen when I display on the screen-- then I just get the surface as intended.

I have tried everything from playing with trellis.par.set() to changing the code of panel.3dwire, but nothing seems to remove these gridlines. Any idea would be greatly appreciated.



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