Class Name: PS Location 2D

Superclass - Location 2D

Definition

A coordinate within the Polar Stereographic (PS) 2D Spatial Reference Frame (SRF).

The Polar Stereographic projection-based Spatial Reference Frame is a planar, conformal projection placed tangent to the Object Reference Model/ Earth Reference Model (ORM/ERM) at either of the two poles. When secant, intersection with the ORM/ERM occurs along a parallel of latitude; alternatively this can be expressed as a "central scale factor". The locations of the poles are defined by the ORM/ERM.

When used to define a 2D coordinate system, the resulting X and Y axes are measured in meters (rather than arc degrees), with the origin located at the parametrically specified pole. The Y axis lies along (and is positive along) a parametrically defined meridian; the X axis is perpendicular to the Y axis and is oriented to form a 2D right-handed coordinate system.

See the SEDRIS Spatial Reference Model (SRM) for additional details.

Primary Page in DRM Diagram:

• 15

Example

FAQs

Constraints

• Environment Root Spatial Reference Frame
• Locations Under Model

Component of (one-way)(inherited)

• optionally, some Arcs
• optionally, some Base Perimeter Data
• optionally, some Base Reference Vectors
• optionally, some Directional Light Behaviors
• optionally, a Distance Level of Detail Data (notes)
• optionally, some Ellipses
• optionally, some Elliptic Cylinders
• optionally, some Feature Edges
• optionally, a Feature Node
• optionally, some Image Anchors
• optionally, some Labels
• optionally, a Location Table
• optionally, some Morph Points
• optionally, some Point Geometries
• optionally, some Property Grid Hook Points
• optionally, a Reference Origin
• optionally, some Spatial Domains
• optionally, some Spatial Index Related Feature Topologies
• optionally, some Spatial Index Related Features
• optionally, some Spatial Index Related Geometries
• optionally, some Tack Points
• optionally, some Vertices
• optionally, some Vertex with Component Indices
• optionally, some World 3X3s
• optionally, some World Transformations

Field Elements

Notes

Component of Notes

Distance_Level_of_Detail_Data

 the center point for the LOD test

Fields Notes

x

 in meters

y

 in meters along meridian defined by the applicable PS
 Spatial Reference Frame (SRF) parameters