Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have about 16 rasters spanning the same extent and containing the same variable.

I use the display symbology in ArcGIS to generate a stretched Color Ramp which is the heatmap i want.

As the Colorramp colors adjust to maximum and minimum values within a given raster , does it makes sense to compare two different heatmaps with same colorramp but slightly different statistical distribution ?

Is there a way to generate a heatmap that is independent of statistical distribution and purely a function a variable value ?

share|improve this question
up vote 1 down vote accepted

You can set the min and max values manually. Choose a range that will accomodate all the rasters and set them all to the same min/max values.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

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