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

From: Oliver M. Haynold <>
Date: Tue, 12 Aug 2008 23:18:37 -0500

On Wed, 2008-07-30 at 16:40 -0700, Deepayan Sarkar wrote:
> Does the rendering improve if you unset the "smooth line art" option
> in Acrobat's settings?

Yes, it does! Thanks.

There still is a problem, though, in that the charts so generated won't display and print well for users with the default settings on their readers.

> > The most likely reason for the problem I can think of is that the
> > triangles generated by lattice don't overlap but just border each other.
> > This might cause some renderers to leave a little space between them. If
> > this explanation is correct, a solution would be to have lattice, or
> > specifically wireframePanelCalculations, plot the triangles with a tiny
> > bit of overlap.
> I don't think that's going to happen.

I agree that the radical solution of forced overlap wouldn't be pretty. I still wonder if there's something one could do to fix the problem. Perhaps a hairline around each triangle (I think there's a PDF command to do outline and fill in one stroke so it wouldn't necessarily produce larger files) in the color of that triangle?

        Oliver mailing list PLEASE do read the posting guide and provide commented, minimal, self-contained, reproducible code. Received on Wed 13 Aug 2008 - 05:20:33 GMT

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