The SEDRIS Data Representation Model
APPENDIX A - Classes
Spatial Domain
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Class Name: Spatial Domain
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
- 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).
- 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
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
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Copyright © 2002 SEDRIS
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