TopoToolbox / TopoToolbox/libtopotoolbox
Implement roughness
Open
Nobody has claimed this yet.
enhancement
- Dominant language
- C
- Stars
- 2
- Forks
- 11
- PR merge metrics
- No merged PRs in 30d
Description
GRIDobj.roughness provides a few different local terrain roughness metrics, which are implemented using various filtering methods. I am not sure these all need to be implemented in libtopotoolbox, but they depend on the filtering primitives which we do want to implement.
- Terrain ruggedness index: local standard deviation
- Topographic position index: mean filtering (#110)
- Roughness: maximum/minimum filtering (#105, #108). This could be more efficiently computed
- Ruggedness: surface normals and mean filtering (#110)
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading GRIDobj.roughness and the filtering primitives it depends on. Compare the listed terrain ruggedness, position, roughness, and ruggedness metrics, including issues #105, #108, and #110, then confirm which metrics are in scope and what completion means for each.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- data
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100