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| author | Kristian Evers <kristianevers@gmail.com> | 2018-04-09 22:27:59 +0200 |
|---|---|---|
| committer | Kristian Evers <kristianevers@gmail.com> | 2018-04-09 22:27:59 +0200 |
| commit | bc8026a46606abf48679d81d80991623d5b91ca7 (patch) | |
| tree | 8be3ef78eb22f466855511c3558bee47d20e5301 /docs/source/operations | |
| parent | 89af2753651f8c21eae9df631a71c0a3b03bcc3b (diff) | |
| download | PROJ-bc8026a46606abf48679d81d80991623d5b91ca7.tar.gz PROJ-bc8026a46606abf48679d81d80991623d5b91ca7.zip | |
Add description of projection and +lat_b parameter
Diffstat (limited to 'docs/source/operations')
| -rw-r--r-- | docs/source/operations/projections/airy.rst | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/docs/source/operations/projections/airy.rst b/docs/source/operations/projections/airy.rst index d2730592..eefda4e9 100644 --- a/docs/source/operations/projections/airy.rst +++ b/docs/source/operations/projections/airy.rst @@ -3,6 +3,11 @@ ******************************************************************************** Airy ******************************************************************************** + +The Airy projection is an azimuthal minimum error projection for the region +within the small or great circle defined by an angular distance, +:math:`\phi_b`, from the tangency point of the plane :math:`( \lambda_0, \phi_0 )`. + +---------------------+----------------------------------------------------------+ | **Classification** | | +---------------------+----------------------------------------------------------+ @@ -14,7 +19,10 @@ Airy +---------------------+----------------------------------------------------------+ | **Options** | +---------------------+----------------------------------------------------------+ -| `+lat_b` | | +| `+lat_b` | Angular distance from tangency point of the plane | +| | :math:`( \lambda_0, \phi_0 )` where the error is kept at | +| | minimum. Defaults to :math:`90^{\circ}` which is | +| | suitable for hemispherical maps. | +---------------------+----------------------------------------------------------+ | `+no_cut` | Do not cut at hemisphere limit | +---------------------+----------------------------------------------------------+ |