Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
I use a program which generates three matrices for each time step. To plot the data, I combine them into a single image by using the COLOR_QUAN function image=color_quan([[[mat1]],[[mat2]],[[mat3]]],3,red,green,bl ue,cube=6) tvlct,red,green,blue tv,image and all it is OK. The problem arises when I want to change the colors associated with the image. Imagine that I want to change the colors (red,green,blue) to (white,grey,black) in order to get a suitable image to print in a non color postscript printer. What have I to do? I have tried by loading the color palette black-white (loadct,0) but I don't get enough contrast. In other words, is possible to change the colors RGB coming from COLOR_QUAN to another set of colors? Thanks in advance. RAFA. -- ============================================================ ============== = ==== == == ======== Rafael Gallego = = ==== === === === ======= Universitat de les Illes Balears = = ==== === === ==== ====== Departament de Fisica = = ==== === === === ======= Crta. de Valldemosa. km 7.5 = = ==== === === ======== 07071 Palma de Mallorca (Spain) = = ==== === === === ======= E-mail: rafa@hp1.uib.es = = ==== === === ==== ====== maeshtro@hotmail.com = = == === === === ======= Tfno.: 34-71-172536 = == === == ======== Fax: 34-71-173426 = ============================================================ ==============