Plotting aerial (RGB ortho) imagery in GMT

Q&A
1

Hi,
I can’t find any info on how to plot a geotiff of aerial imagery (RGB) as a background layer in a GMT map. grdimage seems to require separate r/g/b grids, but I figure (hope!!) that there is an easier way.

If separate RGB grids are required, am I correct in that grdmix can create these from the source image, I found that possibility, but am unfamiliar with it.

Any help appreciated!!

Brent Wood

2

Hi Brent

You can use grdimage with images directly. Have you try?

3

As a general rule, GMT can read anything that GDAL can … except when it fails :slight_smile:

4

Thanks, It can & does… wasn’t clear from the docs.