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Re: basic implementation for isosurface, isocolors, isonormals


From: dbateman
Subject: Re: basic implementation for isosurface, isocolors, isonormals
Date: Mon, 9 Mar 2009 22:45:16 +0100
User-agent: Mutt/1.5.13 (2006-08-11)

On Mon, Mar 09, 2009 at 08:33:06PM +0100, address@hidden wrote:
> On Mon, Mar 09, 2009 at 05:34:29PM +0100, Martin Helm wrote:
> > in principle gnuplot can do it. But I cannot oversee how it fits into the 
> > octave drawing functions at the moment (I need to look into the code later, 
> > I have no access to octave now).
> > The difference between 2d and 3d patches with gnuplot is that it is not 
> > possible to use the same syntax (2d uses a filled curve style which does 
> > not exist for 3d).
> 
> 
> I have a changeset that partly works to implement 3d triangular patches. 
> Give me a few hours and I'll send it


Ok the attached patch against the tip adds triaangular 3D patches. Its 
not optimal as each patch is drawn individually, and that should be 
rewritten, but the example from isosurface works.. The patch will need a 
bit more work before commiting it including 

* Document new functions in plot.txi and NEWS
* Style fixes in the added functions
* isosurface called with no args doesn't yet plot as expected.

In any case its a start and should allow isosurface and trisurf to be 
written.

D.

Attachment: patch.isosurface.bz2
Description: Binary data


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