MAPPROJECTION subcommand (SPATIAL MAPSPEC command)

The optional MAPPROJECTION subcommand specifies the type of projection that is used to read and display maps.

• All maps specified in the SPATIAL MAPSPEC command must use the same map projection.
• If both WKID and PROJECTION are specified, the WKID value is used.

WKID=code

"Well known ID" for common projections. For more information, go to http://resources.arcgis.com

PROJECTION

The PROJECTION keyword identifies the type of projection.

name

A valid projection name. For more information, go to http://help.arcgis.com/en/webapi/javascript/gmaps/help/topics/pcs.html

CARTESIAN

The coordinate system is simple X and Y coordinates.

DISPLAY

The DISPLAY keyword sets the display projection.

SIMPLE

Use the projection from the WKID or the PROJECTION value. This setting is the default value.

MERCATOR

A cylindrical map projection that preserves the angles and the shapes of small objects. The Mercator projection distorts the size and shape of large objects, as the scale increases from the Equator to the poles, where it becomes infinite.

STEREOGRAPHIC

A projection recommended for maps close to the poles.

WINKELTRIPEL

Winkel tripel projection. This projection is a modified azimuthal map projection.