PROJ/docs/source/operations/projections/tmerc.rst, branch 7.1.0 Forked from https://github.com/OSGeo/PROJ tmerc/utm: add a +algo=auto/evenden_snyder/poder_engsager parameter 2020-04-14T23:07:18+00:00 Even Rouault even.rouault@spatialys.com 2020-04-14T15:17:55+00:00 964569728722e9e91f152410a4747a0ba078bd84 The default remains +alg=poder_engsager. This default value can be changed in proj.ini +algo=auto will use Evenden Synder implementation if the error in doing so remains below 0.1 mm on Earth-sized ellipsoid 
The default remains +alg=poder_engsager.
This default value can be changed in proj.ini

+algo=auto will use Evenden Synder implementation if the error in
doing so remains below 0.1 mm on Earth-sized ellipsoid
Doc: use 'ellipsoidal' to refer to the ellipsoidal formulation (to be opposed to the spherical one) 2020-03-11T08:22:32+00:00 Even Rouault even.rouault@spatialys.com 2020-03-10T17:09:53+00:00 aa71df059f2eee4f33f0b137948c1f71d8260b88 Instead of 'elliptical'. Was suggested by @cffk in https://github.com/OSGeo/PROJ/pull/2030#issuecomment-596132341 An elliptical projection is a projection whose global shape fits inside an ellipsoid, like Mollweide. At least according to https://www.merriam-webster.com/dictionary/elliptical%20projection and https://en.wikipedia.org/wiki/Mollweide_projection 
Instead of 'elliptical'.
Was suggested by @cffk in https://github.com/OSGeo/PROJ/pull/2030#issuecomment-596132341

An elliptical projection is a projection whose global shape fits inside an
ellipsoid, like Mollweide. At least according to
https://www.merriam-webster.com/dictionary/elliptical%20projection
and
https://en.wikipedia.org/wiki/Mollweide_projection
Remove occurences of deprecated PROJ.4 syntax 2020-03-04T23:18:01+00:00 Kristian Evers kristianevers@gmail.com 2020-03-04T19:40:43+00:00 341e0e7eb4f95de5c6ccc24ee98b7bb304964449 +no_defs and +datum has no effect on the behaviour of proj, so can be left out in these examples in the docs. +no_defs in rare occasions would have had an effect in older PROJ versions but not from PROJ 6 and onwards. +datum has ever only been honoured by cs2cs and pj_transform(). Fixes #2017 
+no_defs and +datum has no effect on the behaviour of proj, so can be
left out in these examples in the docs. +no_defs in rare occasions would
have had an effect in older PROJ versions but not from PROJ 6 and
onwards. +datum has ever only been honoured by cs2cs and pj_transform().

Fixes #2017
Some improvements to the docs for tmerc and omerc (#1281) 2019-02-24T13:21:26+00:00 Thomas Knudsen busstoptaktik@users.noreply.github.com 2019-02-24T13:21:26+00:00 38a1525b01b45420de01b0df71befd030253ebe3
Make tmerc an alias for etmerc. (#1234) 2019-02-11T22:58:16+00:00 Kristian Evers kristianevers@gmail.com 2019-02-11T22:58:16+00:00 5141b3908e59a26c9fe66de94bb7388bff741b58 * Make tmerc an alias for etmerc This switches the algorithm used in tmerc to the Poder/Engsager tmerc algorithm. The original tmerc algorithm of Evenden/Snyder origin can still be accessed by adding the +approx flag when initializing a tmerc projection. The +approx flag can also be used when initializing UTM projections, in which case the Evenden/Snyder algorithm is used as well. If a tmerc projection is instantiated on a spherical earth the Evenden/Snyder algorithm is used as well since the Poder/Engsager algorithm is only defined on the ellipsoid. +proj=etmerc can still be instantiated for backwards compatibility reasons. Co-authored-by: Kristian Evers <kristianevers@gmail.com> Co-authored-by: Even Rouault <even.rouault@spatialys.com> 
* Make tmerc an alias for etmerc

This switches the algorithm used in tmerc to the Poder/Engsager
tmerc algorithm. The original tmerc algorithm of Evenden/Snyder
origin can still be accessed by adding the +approx flag when
initializing a tmerc projection. The +approx flag can also
be used when initializing UTM projections, in which case the
Evenden/Snyder algorithm is used as well.

If a tmerc projection is instantiated on a spherical earth
the Evenden/Snyder algorithm is used as well since the
Poder/Engsager algorithm is only defined on the ellipsoid.

+proj=etmerc can still be instantiated for backwards compatibility
reasons.

Co-authored-by: Kristian Evers <kristianevers@gmail.com>
Co-authored-by: Even Rouault <even.rouault@spatialys.com>
Add headings on tables where needed. 2018-11-05T00:24:40+00:00 Elliott Sales de Andrade quantum.analyst@gmail.com 2018-11-05T00:24:40+00:00 9b33399b46f3e8aadc983f3fbd5483959df5461e 






Ensure correct axis ratio for images in documentation; move proj-string from image to caption
2018-08-27T21:47:03+00:00

Juernjakob Dugge
juernjakob@gmail.com

2018-08-23T21:14:06+00:00

3378c5ec96fb3f067beffc6c3acd15765d5ce5d1












Replace +k with +k_0 in doc examples
2018-07-06T09:23:59+00:00

Kristian Evers
kristianevers@gmail.com

2018-07-06T09:23:59+00:00

dbf24f23b835453435cb24e5c925db5202a9a925












Revert "Set projection plot scale to 100% for better PDF output"
2018-05-14T20:14:01+00:00

Kristian Evers
kristianevers@gmail.com

2018-05-14T20:14:01+00:00

6284d19e1d2efdc60fd3752187c275e345ab423b

This had unexpected side-effects when building the HTML docs on Travis
compared to locally. The correct solution would be to set different
scaling depending on the output.

This reverts commit 325477ed0fac2c9233c2f6a2b7bb4125e04df24c.





This had unexpected side-effects when building the HTML docs on Travis
compared to locally. The correct solution would be to set different
scaling depending on the output.

This reverts commit 325477ed0fac2c9233c2f6a2b7bb4125e04df24c.







Set projection plot scale to 100% for better PDF output
2018-05-14T18:57:00+00:00

Kristian Evers
kristianevers@gmail.com

2018-05-14T18:57:00+00:00

325477ed0fac2c9233c2f6a2b7bb4125e04df24c