Problems with Projections
Moderator: Kyete
Problems with Projections
I have just joined the Beta program and my first impressions are very positive. As is to be expected, I have discovered a bug, though.
I am usually working on world maps, so projections are the first thing I started to test out. What I have discovered: any polar landmasses drawn in the Mercator Transverse or Azimuthal projections get terribly disfigured when moving back to the Equirectangular projection.
Case in point:
Mercator Transverse:
Converted to Equirectangular becomes this:
Notice that only the polar area has the problem. This seems to be consistent behavior across my tests. Please fix: I need my polar continents!
I am usually working on world maps, so projections are the first thing I started to test out. What I have discovered: any polar landmasses drawn in the Mercator Transverse or Azimuthal projections get terribly disfigured when moving back to the Equirectangular projection.
Case in point:
Mercator Transverse:
Converted to Equirectangular becomes this:
Notice that only the polar area has the problem. This seems to be consistent behavior across my tests. Please fix: I need my polar continents!
Re: Problems with Projections
That was fast!! I'm in the process of updating our known issues liststefanstr wrote: Notice that only the polar area has the problem. This seems to be consistent behavior across my tests. Please fix: I need my polar continents!
Yes the "infinite projections" (Transverse and the Azimuthals ) have a bug reversing polar areas. The fix didn't make it to Alpha 3 and we had to release .
You can still use it for reference, but modifying the Equirectangular/Robinson/etc projection and see how it looks in transverse (forward transform works fine).
Edit: but for that you would have to create the original map in the Equirectangular/Robinson/ etc projection, then see how it looks in transverse. In any case, the next version will fix that
- Alejandro
Alejandro S. Canosa
Three Minds Software
Three Minds Software
Re: Problems with Projections
Thanks!
If I understand you correctly, it is likely to be fixed in the next version?
Edit: ninja’d.
If I understand you correctly, it is likely to be fixed in the next version?
Edit: ninja’d.
Re: Problems with Projections
The problems with transverse Mercator are still not fixed, I am afraid.
Re: Problems with Projections
Sadly I wasn't able to properly test my projection changes so I had to leave them out of the release. It was already running really late and we just had to release.stefanstr wrote:The problems with transverse Mercator are still not fixed, I am afraid.
Good news is we are spending January fixing existing (and new from Beta) bugs and finishing partially implemented features, so hopefully the next release will get fully functional projections.
- Alejandro
Alejandro S. Canosa
Three Minds Software
Three Minds Software
Re: Problems with Projections
Stefan,
Still not fixed with Beta 2...other issues took priority, but it should be the first thing we work on towards beta 3.
Thanks!
- Alejandro
Still not fixed with Beta 2...other issues took priority, but it should be the first thing we work on towards beta 3.
Thanks!
- Alejandro
Alejandro S. Canosa
Three Minds Software
Three Minds Software
Re: Problems with Projections
Thanks Alejandro. I guess I will wait for beta 3 then.Kanchou wrote:Stefan,
Still not fixed with Beta 2...other issues took priority, but it should be the first thing we work on towards beta 3.
Thanks!
- Alejandro