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Last Post 20 Mar 2007 08:41 AM by  anon
envi doesn't display vector overlays in color and fails to set some default colors in preferences.
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anon



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20 Mar 2007 08:41 AM
    Hi all. I am using ENVI 4.3+IDL on WindowsXP I am unable to set a color, which is set by the widget having the form of a small colored square, and right-click on which brings a drop-down menu with list of colors. When I display a raster image and try to overlay it with a vector file, the overlayed vector is displayed only in gray ñolors (or black or white). When I bring up the dialog to set vector layer parameters, it, as usual, contains a small square with color sample, right-click on it brings up the color list. However, these colors do not appear, this square becomes colored with either black or white or grays. Analysis of files colors.txt, colors{25,50,etc}.txt shows that red value is taken as the gray level. Same situation occurs, when I display vectors in a new vector window and try to change their colors. Same situation occurs, when I try to set some colors in the ENVI preference dialog. I am unable to set "Display Graphic Color" and colors in "Plot Defaults".

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    20 Mar 2007 08:54 AM
    removal of device, decomposed=0 from IDL startup did the job.

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    01 Oct 2009 10:45 AM
    [QUOTE]wl@eimb.ru wrote removal of device, decomposed=0 from IDL startup did the job.[/QUOTE]   Thanks for the tip.  I've just noticed this same issue, and am wondering if anyone has any other solutions.  Commenting out "decomosed = 0" works in the sense that ENVI graphics can now be displayed in color, but then I have to edit the IDL startup file everytime I need to plot anything in stand-alone IDL.  There's got to be a better fix, right ITT?   
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