Tilted perspective¶
| Classification | Azimuthal |
| Available forms | Forward and inverse, spherical projection |
| Defined area | Global |
| Alias | tpers |
| Domain | 2D |
| Input type | Geodetic coordinates |
| Output type | Projected coordinates |
proj-string: +proj=tpers +h=5500000 +lat_0=40
Tilted Perspective is similar to Near-sided perspective (nsper) in that it simulates a
perspective view from a height. Where nsper projects onto a plane tangent to
the surface, Tilted Perspective orients the plane towards the direction of the
view. Thus, extra parameters specifying azimuth and tilt are required beyond
nsper`’s h. As with nsper, lat_0 & lon_0 are
also required for satellite position.
Parameters¶
Required¶
-
+h=<value>¶ Height of the view point above the Earth and must be in the same units as the radius of the sphere or semimajor axis of the ellipsoid.
Optional¶
-
+azi=<value>¶ Bearing in degrees away from north.
Defaults to 0.0.
-
+tilt=<value>¶ Angle in degrees away from nadir.
Defaults to 0.0.
-
+lon_0=<value>¶ Longitude of projection center.
Defaults to 0.0.
-
+lat_0=<value>¶ Latitude of projection center.
Defaults to 0.0.
-
+R=<value>¶ Radius of the sphere given in meters. If used in conjunction with
+ellps+Rtakes precedence.
-
+x_0=<value>¶ False easting.
Defaults to 0.0.
-
+y_0=<value>¶ False northing.
Defaults to 0.0.