MerginMaps / MerginMaps/mobile
Problem with creating points from GPS variables
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- Dominant language
- C++
- Stars
- 388
- Forks
- 87
- Avg merge
- 2d 7h
- Merged PRs (30d)
- 20
Description
I am trying to create a dynamic buffer (30 m) around my GPS location. For that, I have added a point and used Geometry Generator to create a buffer for the style. The expression I used is:
buffer(transform(@position_from_gps,'EPSG:4326', 'EPSG:3857'),30)
But I do not see anything on my map.
The project can be found here:
https://public.cloudmergin.com/projects/saber/gps_buffer
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
Open the linked Mergin Maps project and reproduce the missing buffer using the reported Geometry Generator expression with @position_from_gps. Inspect how the mobile app evaluates the GPS position and transformed geometry; done means the 30 m buffer is visible at the GPS location.
Written by the indexing model from the issue text.
Assessment
- Domain
- mobile
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100