The SEDRIS Data Representation Model
APPENDIX A - Classes
LTP Location 2D

Class Name: LTP Location 2D

Superclass - <Location 2D>

Subclasses

This DRM class is concrete and has no subclasses.

Definition

An instance of this DRM class specifies a coordinate within the Local Tangent Plane (LTP2) 2D Spatial Reference Frame (SRF).

See [I18026] for a complete definition.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

This class appears on only one page of the DRM class diagram.

Example

  1. A <Property Grid> maps wind velocities along a coastline. The <Property Grid> uses a Local Tangent Plane (2D) Spatial Reference Frame with the Y axis parallel to the coast.

FAQs

How does the Local Tangent Plane (LTP2) SRF differ from the Local Space Rectangular (LSR2) SRF?
The Local Tangent Plane (2D) SRF specifies a location in a georeferenced space. The Local Space Rectangular (2D) SRF specifies a location in a Cartesian, non-georeferenced "model" space.

Constraints

Component of (two-way)(inherited)

Inherited Field Elements

This class has no inherited field elements.

Field Elements

SRM_LTP_Coordinate_2D coordinate;
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Last updated: October 1, 2002 Copyright © 2002 SEDRIS™