The SEDRIS Data Representation Model
APPENDIX A - Classes
TM Surface Location

Class Name: TM Surface Location

Superclass - <Location Surface>

Subclasses

This DRM class is concrete and has no subclasses.

Definition

An instance of this DRM class specifies a surface coordinate for an SRF based on the Transverse Mercator SRFT.

See ISO/IEC 18026 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. The British National Grid uses the TM Surface SRF. The TM Surface SRF is often used to describe areas that have greater north-south than east-west extent, and that distortion of scale, distance, direction and area increase away from the central meridian.

FAQs

Where can users obtain further information on TM?

See the SRM for additional details.

Constraints

Component of (two-way) (inherited)

Inherited Field Elements

This class has no inherited field elements.

Field Elements

SRM_Map_Projection_Surface_Coordinate coordinate; (notes)

Notes

Fields Notes

coordinate

The coordinate field specifies the set of coordinate component values.

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Last updated: August 23, 2005 Copyright © 2005 SEDRIS™