[GRASS5] [bug #2464] (grass) Visual comparison of two raster images

Request Tracker grass-bugs at intevation.de
Mon Jun 7 12:05:49 EDT 2004

this bug's URL: http://intevation.de/rt/webrt?serial_num=2464

Subject: Visual comparison of two raster images

grass binary for platform: Compiled from Sources
GRASS Version: grass5.7.0 beta 1 

I am looking for a comparison of two rasters inside the same monitor.  
1. display of two raster images.  
2. moving border which is moved with the mouse across the monitor  
like raster 1 =  a; raster 2 = b 
a a a a b b     a a a b b b   a a b b b b  
a a a a b b ->a a a b b b ->a a b b b b 
a a a a b b     a a a b b b   a a b b b b 
horizontally or vertically.  
Which would be fantastic: A dynamic border which can be changed by moving the  
mouse in different directions (from vertical to horizontal to diagonal and  
anything in between)  
or two raster which dissolve and the strength of dissolving can be changed.  
- just raster 1 visible 
- raster 1 80 % visible, raster 2 20% visible 
- until raster 2 100% visible  
cheers Martin  
wegmann at biozentrum.uni-wuerzburg.de 

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