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| author | Kristian Evers <kristianevers@gmail.com> | 2018-04-30 22:42:59 +0200 |
|---|---|---|
| committer | Kristian Evers <kristianevers@gmail.com> | 2018-04-30 22:57:05 +0200 |
| commit | 970d708ff9d796f7d9ec00b22023e835fbdc7f2d (patch) | |
| tree | cbee11737ed36f20e51ba19c9e8faa757e79ac0d /docs/source/operations/projections/ccon.rst | |
| parent | cd23e5f1b2630ee07567bd361373ba725774061b (diff) | |
| download | PROJ-970d708ff9d796f7d9ec00b22023e835fbdc7f2d.tar.gz PROJ-970d708ff9d796f7d9ec00b22023e835fbdc7f2d.zip | |
Refactor operation doc pages
Extended the use of the :option: directive to all currently written
operation doc pages. In the process several more default parameters were
added for easy inclusion in other doc pages.
Expanded the info tables for each operation with "domain", "alias",
"input type" and "output type".
Corrected various errors along the way. Mainly formatting errors and
references to invalid parameters such as +sym in hatano.
Diffstat (limited to 'docs/source/operations/projections/ccon.rst')
| -rw-r--r-- | docs/source/operations/projections/ccon.rst | 48 |
1 files changed, 39 insertions, 9 deletions
diff --git a/docs/source/operations/projections/ccon.rst b/docs/source/operations/projections/ccon.rst index 8a858e38..f5ceed67 100644 --- a/docs/source/operations/projections/ccon.rst +++ b/docs/source/operations/projections/ccon.rst @@ -4,8 +4,10 @@ Central Conic ******************************************************************************** -This is central (centrographic) projection on cone tangent at ``lat_0`` latitude, -identical with ``conic()`` projection from ``mapproj`` R package. +.. versionadded:: 5.0.0 + +This is central (centrographic) projection on cone tangent at :option:``lat_1`` +latitude, identical with ``conic()`` projection from ``mapproj`` R package. +---------------------+----------------------------------------------------------+ | **Classification** | Conic | @@ -14,13 +16,16 @@ identical with ``conic()`` projection from ``mapproj`` R package. +---------------------+----------------------------------------------------------+ | **Defined area** | Global, but best used near the standard parallel | +---------------------+----------------------------------------------------------+ -| **Implemented by** | Lukasz Komsta | +| **Alias** | ccon | ++---------------------+----------------------------------------------------------+ +| **Domain** | 2D | +---------------------+----------------------------------------------------------+ -| **Options** | +| **Input type** | Geodetic coordinates | +---------------------+----------------------------------------------------------+ -| `+lat_1` | Latitude of standard parallel. | +| **Output type** | Projected coordinates | +---------------------+----------------------------------------------------------+ + .. image:: ./images/ccon.png :scale: 50% :alt: Central Conic @@ -44,13 +49,38 @@ The ATPOL coordinates can be achieved with with the following parameters: :: - +proj=ccon +lat_1=52 +lat_0=52 +lon_0=19 +axis=esu +a=6390000 +x_0=330000 +y_0=-350000 + +proj=ccon +lat_1=52 +lon_0=19 +axis=esu +a=6390000 +x_0=330000 +y_0=-350000 For more information see [Komsta2016]_ and [Verey2017]_. +Parameters +################################################################################ + +Required +------------------------------------------------------------------------------- + +.. option:: +lat_1=<value> + + Standard parallel of projection. + +Optional +------------------------------------------------------------------------------- + +.. include:: ../options/lon_0.rst + +.. include:: ../options/R.rst + +.. include:: ../options/x_0.rst + +.. include:: ../options/y_0.rst + + +Mathematical definition +################################################################################ + Forward projection -================== +------------------------------------------------------------------------------- .. math:: @@ -66,7 +96,7 @@ Forward projection Inverse projection -================== +------------------------------------------------------------------------------- .. math:: @@ -81,7 +111,7 @@ Inverse projection \lambda = \frac{\tan^{-1} \sqrt{x^2+y^2}}{\sin \phi_0} Reference values -================== +################################################################################ For ATPOL to WGS84 test, run the following script: |
