Re:warping of density plots
- To: mathgroup at yoda.physics.unc.edu
- Subject: Re:warping of density plots
- From: My Account <me at leidecker.gsfc.nasa.gov>
- Date: Fri, 18 Dec 92 10:16:04 -0500
Ivan Vesely <vesely at next.heart.rri.uwo.ca> says: "... What I really need is some good image warping software that will allow me to play with the images and get them all to look the same size and shape. ..." Mma can do this, and uses a clear enough programming methodology so that development can proceed quickly. But Mma is slow for production work, relative to products that work with fully compiled code, and with data-structures that are optimized for images. You might consider KHOROS, which has been under development for more than two years at the University of New Mexico, and is available by anonymous ftp from pprg.eece.unm.edu:pub/khoros/*. It already does warping and averaging, and many of the other things you name (and did not get around to naming). So you don't have to do any development at all --- you can just start in working. (Best if you can locate someone who is already using it, and look over their shoulder for a few minutes.) "Khoros, a huge (~100 meg) graphical development environment based on X11R4. Khoros components include a visual programming language, code generators for extending the visual language and adding new application packages to the system, an interactive user interface editor, an interactive image display package, an extensive library of image and signal processing routines, and 2D/3D plotting packages." It has been running just fine on NeXTs, under X-windows. (It would be nice to cut a version that used NeXTStep and Display PostScript all the way!) It also runs on most other computers that have an X-windows package. A comment on Dr. Wiscombe's remarks about UNIX supporting the assembly of useful programs from small tools and good connections: KHOROS does for images what UNIX does for byte-streams! Regards, Henning Leidecker