GM_Projection_t Methods – Global Mapper

Global Mapper SDK

GM_Projection_t Methods

The GM_Projection_t type exposes the following members.

Methods

	Name	Description
	AddAttr	Adds an Attribute to the end of the attribute list. Returns false if list is full
	AddCustomDatum	Adds a new custom datum with the given parameters
	AddCustomEllipsoid	Adds a new custom ellipsoid with the given parameters
	CreateProjection	Creates a new projection object using a comprehensive set of codes to define all coordinate system parameters.
	AreProjectionsEquivalent	Checks to see if the 2 projections are equivalent
	FreeCoordTransform	Frees memory allocated by GM_GetProjectionValues for a coord transform.
	DecodeMGRSCoordinates	Decodes a MGRS (military grid reference system) coordinate into a X/Y or lat/lon location
	Equals	Determines whether the specified Object is equal to the current Object . (Inherited from Object .)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object .)
	GetAvailableProjectionList	Retrieves a list of all available projections and their available parameters, datums, units, etc. Returns GM_ProjectionInfo_t* (array of GM_ProjectionInfo_t structures)
	GetBase	Retrieves the underlying base projection that forms the basis for a given projection.
	GetBaseProjection	Retrieves the underlying base projection that forms the basis for a given projection.
	GetDatumInfo	Gets the parameters for a particular datum
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object .)
	GetMGRSCoordinates	Gets the MGRS (military grid reference system) coordinates for a location
	GetProjection	Gets the current view/export projection
	GetProjectionValues	Creates a new projection object using a comprehensive set of codes to define all coordinate system parameters.
	GetType	Gets the type of the current instance. (Inherited from Object .)
	LoadProjectionFile	Initializes a GM_Projection_t structure from a projection (PRJ, Ozi .map, etc.) file.
	LoadProjectionFromEPSGCode	Initializes a GM_Projection_t structure from an EPSG code
	LoadProjectionFromWKTString	Initializes a GM_Projection_t structure from a WKT projection string
	MemberwiseClone	Creates a shallow copy of the current Object . (Inherited from Object .)
	RemoveAttr	Removes an Attributef at the specified index from the attribute list. Returns false if list is empty or index is out of range
	SaveProjectionToFile	Saves a GM_Projection_m structure to a projection (PRJ) file.
	SaveProjectionToString	Saves a GM_Projection_t structure to a WKT projection string.
	SaveToFile	Saves a GM_Projection_m structure to a projection (PRJ) file.
	SaveToString	Saves a GM_Projection_t structure to a WKT projection string.
	SelectProjection	Displays the projection selection dialog to allow the user to select a projection
	SelectProjectionEx	Displays the projection selection dialog to allow the user to select a projection
	SetAsProjection	Set the new projection. This is the projection that all draws and exports will be done in. It is also the projection that all world bound rectangles will be in. This version allows providing a lat/lon bounding rectangle for automatic selection of the best zone for zoned projections.
	SetProjection	Set the new projection. This is the projection that all draws and exports will be done in. It is also the projection that all world bound rectangles will be in. This version allows providing a lat/lon bounding rectangle for automatic selection of the best zone for zoned projections.
	SetProjectionEx	Set the new projection. This is the projection that all draws and exports will be done in. It is also the projection that all world bound rectangles will be in. This version allows providing a lat/lon bounding rectangle for automatic selection of the best zone for zoned projections.
	SetQueryProjectionCallback	Sets the function to call to select a projection for a layer when being loaded if the projection for that layer cannot be automatically determined. If a callback is provided, it will be called rather than the projection selection dialog being displayed.
	ToString	Returns a string that represents the current object. (Inherited from Object .)

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Reference

GM_Projection_t Class

GlobalMapper.Types Namespace