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| author | Kristian Evers <kristianevers@gmail.com> | 2016-12-17 22:54:59 +0100 |
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| committer | Kristian Evers <kristianevers@gmail.com> | 2016-12-17 22:54:59 +0100 |
| commit | 8d856aa45076014d2aac635a9425467b579b6386 (patch) | |
| tree | cf475afe6d0f131198cc81842e3b5f9245e2c8c0 /docs | |
| parent | 9f9a648fa200e06011ca6ed2a00469eb4e0f661a (diff) | |
| download | PROJ-8d856aa45076014d2aac635a9425467b579b6386.tar.gz PROJ-8d856aa45076014d2aac635a9425467b579b6386.zip | |
Migrated Tilted Perspective projection doc page from trac
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/source/projections/tpers.rst | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/docs/source/projections/tpers.rst b/docs/source/projections/tpers.rst index 7be5bd6c..345a5faa 100644 --- a/docs/source/projections/tpers.rst +++ b/docs/source/projections/tpers.rst @@ -3,8 +3,37 @@ ******************************************************************************** Tilted perspective ******************************************************************************** ++---------------------+----------------------------------------------------------+ +| **Classification** | Azimuthal | ++---------------------+----------------------------------------------------------+ +| **Available forms** | Forward and inverse, spherical projection | ++---------------------+----------------------------------------------------------+ +| **Defined area** | Global | ++---------------------+----------------------------------------------------------+ +| **Implemented by** | Gerald I. Evenden | ++---------------------+----------------------------------------------------------+ +| **Options** | ++---------------------+----------------------------------------------------------+ +| `+h` | Height (in meters) above the surface. Required. | ++---------------------+----------------------------------------------------------+ +| `+azi` | Bearing (in degrees) from due north. | ++---------------------+----------------------------------------------------------+ +| `+tilt` | Angle (in degrees) away from nadir. | ++---------------------+----------------------------------------------------------+ +| `+lat_0` | Latitude (in degrees) of the view position. | ++---------------------+----------------------------------------------------------+ +| `+lon_0` | Longitude (in degrees) of the view position. | ++---------------------+----------------------------------------------------------+ + .. image:: ./images/tpers.png :scale: 50% - :alt: Tilted perspective + :alt: Tilted perspective + +Tilted Perspective is similar to :ref:`nsper` (``nsper``) in that it simulates a +perspective view from a hight. Where ``nsper`` projects onto a plane tangent to +the surface, Tilted Perspective orients the plane towards the direction of the +view. Thus, extra parameters azi and tilt are required beyond `nsper``'s ``h``. +As with ``nsper``, ``lat_0`` & ``lon_0`` are also required +for satellite position. |