Re: [Plplot-general] contour rendering to PBM, or how to get libpng working on Win32

[Alan W. I. <ir...@be...>]

On 2004-07-01 00:52-0400 John Matthews wrote:

> Quick version:
> 1) PBM driver renders crosshatch pattern in contour plot where PNG
> driver renders patches of color. How to make PBM give the same image as
> PNG?

That's the result of our software fill routine which is pretty lame but
better than nothing.  The software fill kicks in if the device doesn't have
the fill capability at all.  Perhaps more work (or higher resolution) for
the software fill routine would make your results look substantially better,
but other aspects of the PBM results look poor to me as well (again, it may
just be the default resolution) so that whole area of our code probably
needs some maintenance.  If you don't want to do that yourself, then
probably it is best to avoid the PBM device for now.

>
> Or...
> 2) Does anyone have a listing of files and clear instructions to get
> libpng, zlib, and gd all installed and working with plplot on Windows
> 2000 using MinGW/MSYS?

I don't have windows or mingw experience, but others on this list do so I
hope they are able to provide you with some help with libgd on windows.

Alan
__________________________
Alan W. Irwin
email: ir...@be...
phone: 250-727-2902

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the PLplot scientific plotting software
package (plplot.org), the Yorick front-end to PLplot (yplot.sf.net), the
Loads of Linux Links project (loll.sf.net), and the Linux Brochure Project
(lbproject.sf.net).
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Linux-powered Science
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