SetMapProjection()
Summary
Sets the projection and coordinate system used in a map.
Syntax
SetMapProjection(string map_name, string proj_name, array parameters)
| Argument | Contents |
|---|---|
| map_name | The name of the map, or null for the current map |
| proj_name | The name of the projection; see Notes |
| parameters | An array of projection parameters (strings); see Notes |
Notes
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If the map has an image layer, SetMapProjection() cannot change the projection from that of the image layer. You must drop the image layer to change the projection of the map.
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For more details on the name of the projection (using the abbreviation) and the projection parameters, see Custom Coordinate System.
Examples
// Change the map's projection to UTM, zone 19, meters
SetMapProjection(null, "utm", {"zone=19", "ellps=GRS80"})
// Change the map's projection to 1983 State Plane, Massachusetts Mainland, US Survey Feet
SetMapProjection(null, "nad83:2001", {"units=us-ft"})See Also
| Function | Summary |
|---|---|
| SetMapOptions() | Sets options for a map window |
| GetMapProjection() | Returns the projection and coordinate system used in a map |
| GetProjectionScope() | Returns a valid scope for a particular projection |