ICoordinateSystem80

This interface gives access to layer and MPT coordinate system information and to methods which enable conversion from one coordinate system to another. Each coordinate system is associated with its Well-Known Text (WKT) description, a simple structured, text-based format that is easy to store and share between systems.

 

 

Properties

 

FactorToMeter

Gets the multiplication factor to convert coordinate units to meters.

PrettyWkt

Gets a nicely formatted WKT string for display to a person.

WellKnownText

Gets and sets the Well-Known Text representation for the selected coordinate system.

WktDescription

Gets the description part of the WKT string.

 

Methods

 

GetFactorToMeterEx

Returns the metric conversion factor for the specified unit.

InitFromBMG

Initializes a projection definition based on the four string keys used to represent a coordinate system in an older TerraExplorer version.

InitFromEPSG

Initializes a projection definition based on a numeric EPSG projected coordinate system definition.

InitLatLong

Initializes a Geographic Lat-Long, WGS coordinate system.

IsCompound

Returns TRUE if the coordinate system includes a vertical datum.

IsGeocentric

Returns TRUE if the coordinate system is geocentric.

IsPlanar

Returns TRUE if the coordinate system is planar.

IsSame

Returns TRUE if the selected coordinate system is the same as the specified one.

IsWktValid

Returns TRUE if the coordinate system’s WKT is valid.