Skip to main content
Question

How to subtract many TIF - DEMs from many TIF - DOMs?

  • June 19, 2018
  • 1 reply
  • 4 views
R
Forum|alt.badge.img

I have 2000+ 1x1km TIF DEMs which need to be subtracted from the same amount of 1x1km TIF DOMs. The result should be 2000+ normalised TIFs containing the heights above Ground.

Which method could I use to iterate through each DOM and subtract the correct DEM? I am unsure about how to match the correct DOMs and DEMs.

This post is closed to further activity.
It may be an old question, an answered question, an implemented idea, or a notification-only post.
Please check post dates before relying on any information in a question or answer.
For follow-up or related questions, please post a new question or idea.
If there is a genuine update to be made, please contact us and request that the post is reopened.

1 reply

redgeographics
Celebrity
Forum|alt.badge.img+60
  • redgeographicsCelebrity
  • Celebrity
  • 3703 replies
  • June 19, 2018

If there's a tile number or something like that you could use that to group by, otherwise mosaic them all (the DEM's and the DOM's) and then subtract both mosaics.

FME rocks! \m/

Community Stats

32,085
Posts
121,845
Replies
39,727
Members

Latest FME

Terms & ConditionsCookie settingsAccessibility statement
A product of
Safe Software respectfully acknowledges that we live, learn and work on the traditional and unceded territories of the Kwantlen, Katzie, and Semiahmoo First Nations.