SRM_LTP_Parameters

SRM Reference Manual Types SRM_LTP_Parameters_3D

/*
 * STRUCT: SRM_LTP_Parameters_3D
 *
 *   This data type specifies the parameters needed to define the
 *   Local Tangent Plane (LTP) 3D Spatial Reference Frame (SRF).
 *   See the Spatial Reference Model for details.
 */

typedef	struct
{
	/*
	* Specification of Object Reference Model (ORM)
	*/
	SRM_Horizontal_Datum_Code	horizontal_datum;
	SRM_Vertical_Datum_Code	vertical_datum;
	/*
	* Origin of Spatial Reference Frame (centre)
	*/
	SRM_Long_Float	geodetic_longitude;	(notes)
	SRM_Long_Float	geodetic_latitude;	(notes)
	SRM_Long_Float	azimuth;	(notes)
	/*
	* Origin Displacement of Coordinate System
	*/
	SRM_Long_Float	x_offset;	(notes)
	SRM_Long_Float	y_offset;	(notes)
	SRM_Elevation_Unit	z_unit;	(notes)

} SRM_LTP_Parameters_3D;

Field Notes

geodetic_longitude

 in degrees

geodetic_latitude

 in degrees

azimuth

 angle, in arc degrees, positive clockwise, from geographic
 north to the direction of the positive Y axis

x_offset

 origin relative displacement in x

y_offset

 origin relative displacement in y

z_unit

 Spatial Reference Frame Unit

Prev: SRM_LTP_Parameters_2D. Next: SRM_M_Coordinate_2D.

Return to: Top of this Page, Type Index

Last updated: May 15, 2003