Void or no-data values in Eduard
Grids can contain void or no-data values. A void value indicates the absence of an elevation value.
Adjust the gray value for void values
Choose Shading (at the top-left of your screen) > Gray for Void Values.
Adjust the gray value with the slider.
Replace void values
You can replace void values with another elevation value. This is useful when grid cells with void value indicate water surfaces.
Choose Grid (at the top of your screen) > Replace Void Values.
Enter the new elevation for void values.
Click Replace Void Values and save the grid to a new GeoTIFF file with lossless LZW compression.
See also
