Elevation Map Options
Select elevation display options with
- Modify, Elevation,
Colors menu choice that appears when an elevation map window is
click on the map
and pick Elevation
colors, colors from the popup menu.
In addition to the form
below, you can:
- Expand the z range to use all the available colors on
the map window, which can be valuable when you have blown
up the map and no longer have the highest or lowest
locations on the map. This will only work if you have subset the
DEM, and will put the elevation limits for coloring based on the highest
and lowest elevations on the map.
- To arbitrarily set the color limits, right click on the elevation map,
pick "Elevation colors, Specify", and then select what you want
for the limits to use in coloring. These limits will then apply if
you switch to a reflectance map.
- Set the color range, useful if you want to match several
- Pick Display color scheme. The preview menu shows
what the map will look
- Chroma depth colors: the blue to red
progression that provides an illusion of
depth when used with the appropriate
- Terrain color scale: a color scale that
looks good with terrain and does not use
- Gray scale: a black to white progression.
- Alternate bands: contours displayed in
alternating color bands.
- Color bands
- IHS colors. You can change and preview
scheme. For an elevation map the
intensity will be from the elevations,
the saturation can be from the light
reflectance model, and hue will be a
constants than you can adjust.
- Land sea scales:
- Spectrum colors
- Fixed color
from table. This used pre-defined
categories, usually good for only one thing.
- Stretched color palette
Coloring of grids by integer code
- The next two options have been in the program a long time, and I
have not recently used them. Their usefulness depends a lot on
DEM encoding, and were designed when integer DEMs were the norm.
You might now get better results with a vector overlay.
- Ocean check: put all points at
or below sea level in the water color.
- Lake check: put lakes in the water
- Set IHS colors.
- Set color for missing data.
- z Range:
set the values to use for color coding.
- Log 10
- Grayscale (monochrome): pick the color, with an option to
Last revision 8/12/2021