Similar to layer stack feature in ERDAS what functionality is available in GRASS. I am aware of r.composite, but it can accept only 3 layers. To obtain a stack of more than 3 layers what can be done?

2 Answers 2


You want to use r.patch instead (r.composite accepts only 3 layers since it is dealing with RGB maps).

  • 1
    Make sure you check on each layer's resolution and your current region settings before using either r.composite or r.patch.
    – maning
    Commented May 17, 2011 at 10:22

try gdal_merge.py command ( in qgis--rast menu)

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.