Refer to projection corner of map projection.
| Call | D clGetMapProjectionAngle | ([Longitude], [latitude], [rotation]) | 
| Longitude | < R > | The longitude that puts the pole of projection coordinates (transmission control). | 
| Latitude | < R > | The latitude that puts the pole of projection coordinates (transmission control). | 
| Rotation | < R > | The surrounding revolution corner of the pole of projection coordinates. Longitude Longitude The angle that projection coordinates of central circles of longitudes do that is designated. | 
None