Ah -- I see I did that just for contour lines -- latest upload has the same
for mesh lines. 2 pixels forward of mesh surface, so they show up in rear as
well as front.
On Mon, Nov 30, 2009 at 10:47 AM, Robert Hanson <[email protected]> wrote:
> Jonathan, are you using Jmol 11.9? I remember fixing this there - the
> renderer automatically pushes the mesh line just a pixel forward of the
> surface when rendering, even in the back. You can now customize the contour
> lines on an isosurface and color them any way you want. So please look into
> that -- contourlines instead of mesh. Talking with Jason, I think this is
> more what they are interested in anyway. I basically added functionality
> that matches Gnuplot in that regard.
>
> In addition, the latest JVXL file format now allows for arbitrary lines
> drawn on a mesh. Any color, any direction, any number. So that is the real
> way to go -- produce JVXL files that can display the desired lines and load
> them. "mesh" is not up to it.
>
> Bob
>
>
>
> On Fri, Nov 27, 2009 at 10:25 AM, Jonathan Gutow <[email protected]> wrote:
>
>> I've been cooperating with the SAGE development team to get Jmol
>> working better for viewing 3-D plots in SAGE. We are still discussing
>> what a plot primitive would look like, but I ultimately think that is
>> the way things should go.
>>
>> However, a separate issue of how meshes look has come up. Their
>> first request was easy to deal with. I'm simply loading each surface
>> twice and displaying one copy as mesh to allow for meshes of arbitrary
>> color compared to the solid surface. We may want to include something
>> different in the plot primitive, but this works well for now. The
>> second issue is harder to deal with. Using either the built-in mesh
>> or the second surface as mesh, mesh lines disappear as the surface
>> angles back. At first I thought this was a perspective issue, but it
>> seems to have something to do with whether solid surface or line color
>> takes precedence for a pixel. Setting the solid surface to slightly
>> translucent solves the problem for the case where I use a second
>> surface to display the mesh. So the question for people who know more
>> about the rendering is if there is a way the meshes could be made to
>> have precedence when coloring a pixel, without making the solid
>> surface translucent? One problem I foresee is that as we approach the
>> vanishing point the color of the surface should take precedence.
>> Maybe the balance needs to be adjusted?
>>
>> Jonathan
>> Dr. Jonathan H. Gutow
>> Chemistry Department [email protected]
>> UW-Oshkosh Office:920-424-1326
>> 800 Algoma Boulevard FAX:920-424-2042
>> Oshkosh, WI 54901
>> http://www.uwosh.edu/facstaff/gutow
>>
>>
>>
>>
>>
>>
>>
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>
>
>
> --
> Robert M. Hanson
> Professor of Chemistry
> St. Olaf College
> 1520 St. Olaf Ave.
> Northfield, MN 55057
> http://www.stolaf.edu/people/hansonr
> phone: 507-786-3107
>
>
> If nature does not answer first what we want,
> it is better to take what answer we get.
>
> -- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
>
--
Robert M. Hanson
Professor of Chemistry
St. Olaf College
1520 St. Olaf Ave.
Northfield, MN 55057
http://www.stolaf.edu/people/hansonr
phone: 507-786-3107
If nature does not answer first what we want,
it is better to take what answer we get.
-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
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