International Map of the World Polyconic¶
Classification |
Pseudoconical |
Available forms |
Forward and inverse, spherical and ellipsoidal |
Defined area |
Global |
Alias |
imw_p |
Domain |
2D |
Input type |
Geodetic coordinates |
Output type |
Projected coordinates |

proj-string: +proj=imw_p +lat_1=30 +lat_2=-40
¶
Parameters¶
Required¶
-
+lat_1
=<value>
¶ First standard parallel.
Defaults to 0.0.
-
+lat_2
=<value>
¶ Second standard parallel.
Defaults to 0.0.
Optional¶
-
+lon_0
=<value>
¶ Longitude of projection center.
Defaults to 0.0.
-
+R
=<value>
¶ Radius of the sphere given in meters. If used in conjunction with
+ellps
,+R
takes precedence.
-
+x_0
=<value>
¶ False easting.
Defaults to 0.0.
-
+y_0
=<value>
¶ False northing.
Defaults to 0.0.