The SEDRIS Data Representation Model
APPENDIX A - Classes
Spatial Domain

Class Name: Spatial Domain

Superclass - <SEDRIS Abstract Base>

Subclasses

This DRM class is concrete and has no subclasses.

Definition

The spatial extent of the containing object.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

Example

  1. The spatial extent of an <Environment_Root> within a transmittal, defined by the minimum and maximum latitude and longitude values (i.e. southwest and northeast corners).
  2. The bounding parallelepiped of a <Model> of a building, in Local Space Rectangular coordinates.

FAQs

What is the purpose of this class?
This class provides [CSDGM]-compliant metadata that describes the location and spatial extent of a high-level SEDRIS object (e.g., <Transmittal Root>, <Model>, <Image>, etc.) <Spatial Domain> allows potential users of a SEDRIS transmittal to evaluate the region contained by the transmittal without necessarily having to actually obtain or examine the transmittal itself.

How is the spatial domain of an object defined?
The spatial domain of an object is a simple bounding rectangle or parallelepiped that includes all of the <Locations> contained within that object. The bounding rectangle or parallelepiped is defined by two coordinate locations: the "minimum" corner, and the "maximum" corner, which represent the minimum and maximum values, respectively, along each of the axes of the spatial reference frame within which the object is defined.

Constraints

None.

Composed of (two-way)

Component of (two-way)

Inherited Field Elements

This class has no inherited field elements.

Notes

Composed of Notes


Location

 The first <Location> is the "minimum" corner, that is, the southwest
 corner. In the case of a 3D <Spatial Domain>, the z / elevation value
 of this <Location> is the minimum elevation of the bounding volume
 being specified, rather than the elevation at the southwest corner.

 The second <Location> is the "maximum" corner, that is, the northeast
 corner. In the case of a 3D <Spatial Domain>, the z / elevation value
 of this <Location> is the maximum elevation of the bounding volume
 being specified, rather than the elevation at the northeast corner.

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Last updated: October 1, 2002 Copyright © 2002 SEDRIS™