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eqc documentation matching template (version 3) #415

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Sep 28, 2016
Merged

eqc documentation matching template (version 3) #415

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eqc documentation matching template (version 3)
julien2512 Sep 15, 2016
8f1b2a7
update eqc projection docs with @kbevers @QuLogic comments
julien2512 Sep 16, 2016
26e3889
eqc doc mathematical section update for parameters
julien2512 Sep 16, 2016
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8 changes: 5 additions & 3 deletions docs/source/projections/eqc.rst
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Expand Up @@ -61,7 +61,7 @@ Example using EPSG 32662 (WGS84 Plate Carrée)::
$ echo 2 47 | proj +proj=eqc +lat_ts=0 +lat_0=0 +lon_0=0 +x_0=0 +y_0=0 +ellps=WGS84 +datum=WGS84 +units=m +no_defs
222638.98 5232016.07

Example using Plate Carrée projection with shorelines : 30° graticule and central meridian 90°W.::
Example using Plate Carrée projection with shorelines : 30° graticule and central meridian 90°W::

$ echo -88 30 | proj +proj=eqc +lat_ts=30 +lat_0=90w
-8483684.61 13358338.90
Expand All @@ -71,8 +71,10 @@ Mathematical definition
#######################

The formulas describing the Equidistant Cylindrical projection are all taken from proj4 sources.
:math:`lat_ts` is the latitude of true scale, that mean the standard parallels where the scale of the projection is true.
:math:`lat_0` is the latitude of origin that match the center of the map.

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This section would be more clear if some of the variables are defined here. Like phi_ts is the latitude of true scale and can be set with +lat_ts.

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I tryed something with the parameters.
You may have a look on it ?
I feel it is important to evaluate the quality before stepping to an other projection doc.

:math:`phi_{ts}` is the latitude of true scale, that mean the standard parallels where the scale of the projection is true. It can be set with "lat_ts".
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@kbevers kbevers Sep 16, 2016 •
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I think there's a backslash missing here. Same for the line below.


:math:`phi_0` is the latitude of origin that match the center of the map. It can be set with "lat_0".


Forward projection
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