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Diffstat (limited to 'docs/source/development/quickstart.rst')
| -rw-r--r-- | docs/source/development/quickstart.rst | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/docs/source/development/quickstart.rst b/docs/source/development/quickstart.rst index d53d98fd..eefd5ac3 100644 --- a/docs/source/development/quickstart.rst +++ b/docs/source/development/quickstart.rst @@ -12,8 +12,8 @@ be seen at the end of the section. See the following sections for more in-depth descriptions of different parts of the PROJ API or consult the :doc:`API reference <reference/index>` for specifics. -Before the PROJ API can be used it is necessary to include the ``proj.h`` header -file. Here ``stdio.h`` is also included so we can print some text to the screen: +Before the PROJ API can be used it is necessary to include the :file:`proj.h` header +file. Here :file:`stdio.h` is also included so we can print some text to the screen: .. literalinclude:: ../../../examples/pj_obs_api_mini_demo.c :language: c @@ -45,7 +45,7 @@ a string that describes the target CRS and an optional description of the area o use. The strings for the source or target CRS may be PROJ strings (``+proj=longlat +datum=WGS84``), CRS identified by their code (``EPSG:4326`` or ``urn:ogc:def:crs:EPSG::4326``) or -by a well-known text (WKT) string ( +by a well-known text (WKT) string: :: GEOGCRS["WGS 84", @@ -67,7 +67,6 @@ by a well-known text (WKT) string ( BBOX[-90,-180,90,180]], ID["EPSG",4326]] -). The use of PROJ strings to describe a CRS is considered as legacy (one of the main weakness of PROJ strings is their inability to describe a geodetic datum, other than the few ones hardcoded in the ``+datum`` parameter). @@ -115,7 +114,7 @@ projected CRS. PROJ uses its own data structures for handling coordinates. Here we use a :c:type:`PJ_COORD` which is easily assigned with the function :c:func:`proj_coord`. -When using +proj=longlat, the order of coordinates is longitude, latitude, +When using ``+proj=longlat``, the order of coordinates is longitude, latitude, and values are expressed in degrees. If you used instead a EPSG geographic CRS, like EPSG:4326 (WGS84), it would be latitude, longitude. |