I want to calculate the volume of ditches. It is do-able to determine the shore heights of these ditches, but it is not very precise. A better way would be to do a fill sink analysis. As far as I know FME has no way of doing this?
+8
- Safer
- 350 replies
-
3 May 2022
Hi @michiedem
Have tried the DonutHoleExtractor transformer?
The Outershell port should give you desired result.
+3
Hi @michiedem
Have tried the DonutHoleExtractor transformer?
The Outershell port should give you desired result.
Hello @rahulsharma
I think you must have misunderstood me. My source is a DEM (raster/Geotiff) of an area with ditches. in Arcmap/Qgis you can do a fill sink analyses that will result in a raster with all depressions filled. I want to do something comparable in FME.
I did write a custom tranformer yesterday that looks at all surrounding cells, if they are all higher it lifts the cell to the lowest hight, I then loop back to do the same again. This seems to work, but obvioulsy is incredibly slow.
Reply
Enter your username or e-mail address. We'll send you an e-mail with instructions to reset your password.