SRM_M_Parameters

SRM Reference Manual Types SRM_M_Parameters_2D

/*
 * STRUCT: SRM_M_Parameters_2D
 *
 *   This data type specifies the parameters needed to define the
 *   Mercator (M) 2D Spatial Reference Frame (SRF). See the
 *   Spatial Reference Model (SRM) for details.
 */

typedef	struct
{
	/*
	* Specification of Object Reference Model (ORM)
	*/
	SRM_Horizontal_Datum_Code	horizontal_datum;
	/*
	* Specification of Projection Basis
	*/
	SRM_Long_Float	geodetic_longitude;	(notes)
	SRM_Long_Float	central_scale_factor;	(notes)
	/*
	* Origin Displacement of Coordinate System
	*/
	SRM_Long_Float	x_offset;	(notes)
	SRM_Long_Float	y_offset;	(notes)

} SRM_M_Parameters_2D;

Field Notes

geodetic_longitude

 in degrees; specifying the meridian of the
 Y axis (positive northwards)

central_scale_factor

 unitless; normally close to (<=) 1.0

x_offset

 origin relative displacement in x

y_offset

 origin relative displacement in y

Prev: SRM_M_Coordinate_2D. Next: SRM_Matrix_3x3.

Return to: Top of this Page, Type Index

Last updated: May 15, 2003