The standard parallel with no scale distortion can be specified with the Polar stereographic variant B shares implementation with the stereographic variant but matches the EPSG parameter definitions.It is available in ArcGIS Pro 1.2 and later and in ArcGIS Desktop 10.4 and later. TheĬircular arc with no scale distortion can be specified with the Polar stereographic variant A shares implementation with the stereographic variant but matches the EPSG parameter definitions.It is available in ArcGIS Pro 1.0 and later and in ArcGIS Desktop 9.3 and later. Not maintained when an ellipsoid is used in this variant. Sphere-based equations with a sphere specified by the Auxiliary Sphere Type parameter. The only variant that does not support an ellipsoid, instead using It is available in ArcGIS Pro 1.0 and later and in ArcGIS Desktop 8.1.2 and later. Stereographic South Pole is limited to the South Pole.Stereographic North Pole is limited to the North Pole.It is available in ArcGIS Pro 1.0 and later and in ArcGIS Desktop 8.0 and later. Stereographic supports any aspect of the projection.There are seven variants available in ArcGIS: It is used by Universal Polar Stereographic (UPS) maps showing areas north of 84° north and south of 80° south that aren't included in the Universal Transverse Mercator (UTM) coordinate system. The stereographic projection is appropriate for mapping the polar regions at large scales, such as navigational and topographic maps. Distortion values are the same along circular arcs surrounding the center point. Area, distance, and scale distortions rapidly grow with the distance from the standard parallel. The circular arc with no scale distortion is specified with the standard parallel or scale factor parameter. It does not maintain true directions, but angles and shapes are maintained at infinitesimal scale. Stereographic is a conformal map projection. The antipodal point of the projection's center cannot The other meridians are circular arcs intersectingĪt the poles. The other parallels are concave toward the poles on either side of the The central latitude and the central meridian are straight lines. In the oblique aspect, only the parallel with the opposite sign to Parallels are unequally spaced curves, concave toward the central Projected as two perpendicular straight lines. In the equatorial aspect, the equator and the central meridian are Their spacing rapidly increases from the pole. The parallelsĪre shown as concentric circular arcs. Originating at the pole and all angles between them are true. In the polar aspect, the meridians project as straight lines Stereographic is an azimuthal projection. The subsections below describe the stereographic projection properties. The stereographic map projection is shown centered on the South Pole. The stereographic projection is available in ArcGIS Pro 1.0 and later and in ArcGIS Desktop 8.0 and later. The most well-known are Universal Polar Stereographic (UPS) maps showing areas north of 84° north and south of 80° south that aren't included in the Universal Transverse Mercator (UTM) coordinate system. The projection is most commonly used in polar aspects for topographic maps of polar regions. It projects points on a spheroid directly to the plane and it is the only azimuthal conformal projection. Stereographic is a planar perspective projection, viewed from the point on the globe opposite the point of tangency.
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