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The SEDRIS Data Representation Model
APPENDIX A - Classes Perimeter Related Geometry Topology |
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An instance of this DRM class is a <Geometry Topology Hierarchy> instance that spatially organizes its components into a collection of (potentially) irregularly shaped regions, each defined by a <Perimeter Data> link object.
Consider a plat of a residential subdivision whose streets and driveways are represented using <Polygon> instances organized by a <Perimeter Related Geometry> instance. To represent the geometric topology of the subdivision, the <Perimeter Related Geometry> instance has a <Perimeter Related Geometry Topology> component that represents the set of all <Geometry Topology> instances showing how the driveways of houses in the subdivision are connected to the streets of the subdivision.
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The geometry_topology_level field specifies the level of geometry topology that is present within the hierarchy represented by the <Geometry Topology Hierarchy> instance.
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