Global Mapper v25.0

arc grid of gray shade values

pasayten
pasayten Global Mapper User
edited August 2009 in Raster Data
Lots of experience with GIS (ArcInfo), but new to Global Mapper...

I have a large arc grid of the pacific nw where the values are the actual grey shade color (gray shaded relief) and not the elevation values... values are 0-255 and need to be displayed as the respective gray... 0 is 0,0,0 in rgb (black), 100 is 100,100,100 in rgb, and 255 is 255,255,255 in rgb (white).

What is the easiest way to set up the color ramp and correctly display this grid?

Thanks in advance!

pasayten

P.S. I just previously posted this in the tech support section before I found this one.

Comments

  • global_mapper
    global_mapper Administrator
    edited August 2009
    Pasayten,

    If you select the Gradient Shader on the toolbar and then setup its min color to be black and its maximum elevation color to be white on the Shader Options tab of the Configuration dialog, you should get what you are after.

    Let me know if I can be of further assistance.

    Thanks,

    Mike
    Global Mapper Support
    support@globalmapper.com
  • pasayten
    pasayten Global Mapper User
    edited August 2009
    Thanks... that worked... I had some blue show up, but found that was from the "water" setting... changed that to black and all is well.

    pasayten