PROJ/docs/source/operations/projections/utm.rst, branch backport-2856-to-master Forked from https://github.com/OSGeo/PROJ DOC: configure and add spelling wordlist; fix typos, apply Sphinx syntax (#2705) 2021-05-03T21:05:06+00:00 Mike Taves mwtoews@gmail.com 2021-05-03T21:05:06+00:00 ea3f53746c859c73c775bf11d17f8471d0fb59f2 






Fix configuration for sphinxcontrib-bibtex version 2 or later (#2572)
2021-03-11T08:44:17+00:00

Mike Taves
mwtoews@gmail.com

2021-03-11T08:44:17+00:00

b2d8e255daa523335f91161ed51ab98fc9ac75a8












Update utm.rst
2020-11-20T16:04:25+00:00

Nomit Rawat
nomit.rwt@gmail.com

2020-11-20T15:43:40+00:00

571096201bf2cb1dde8933eb3fb7091e12ebbbe4

Typo




Typo






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







utm/ups: make sure to set errno to PJD_ERR_ELLIPSOID_USE_REQUIRED if es==0
2020-03-10T17:01:43+00:00

Even Rouault
even.rouault@spatialys.com

2020-03-07T00:02:33+00:00

dc4acc001e7d5cd1f4d9af49eeb7e3770a1d5637

ENOMEM was wrongly set after setting PJD_ERR_ELLIPSOID_USE_REQUIRED

Note: it is a bit strange to forbid the pure spherical case whereas the
maths would allow it. I presume this is due to the typical usage of those
methods.





ENOMEM was wrongly set after setting PJD_ERR_ELLIPSOID_USE_REQUIRED

Note: it is a bit strange to forbid the pure spherical case whereas the
maths would allow it. I presume this is due to the typical usage of those
methods.







UTM doc: Move +south and +approx parameters to optional section
2019-05-21T21:56:37+00:00

Kristian Evers
kristianevers@gmail.com

2019-05-21T21:56:37+00:00

0aacb0a14e714e249b986d6f4ddfc8f877af325f












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 UTM docs
2018-07-20T13:25:23+00:00

Kristian Evers
kristianevers@gmail.com

2018-07-20T13:25:23+00:00

2d6f1782baffc83b6a0b053173315cdf590ea257












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.