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Projection types—ArcMap | Documentation - Esri
See results only from desktop.arcgis.comCylindrical Projections
Like conic projections, cylindrical projections can also have tangent or …
Projection Types
A planar projection is tangential to the globe at one point. Tangential cones and …
Conic projections—ArcMap
Conic projections are used for midlatitude zones that have an east–west …
The Three Main Families of Map Projections
Learn how map projections are based on different geometric shapes: cylinders, cones, and planes. See examples of projections that are equal-area, conformal, equidistant, and more.
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Characteristics of Projections | GEOG 486: …
If the developable surface touches the globe at only one point or line, this is called a tangent projection. If it touches at two, this is called a secant projection. Figure 5.4.3 illustrates the difference between a tangent and secant projection.
ArcGIS Help 10.1 - Projection types
Tangents and secants
Some map projections contact the earth's surface along a point or line, called a tangent, while other map projections contact the earth's surface along two lines, called secants. Both tangents and secants represent locations on the map …
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2.4. Map Projections — Introduction to Geospatial …
Distance Distortion: Tangent projections provide the most accurate distances along the line of tangency. Secant projections offer true scale along two lines of intersection, leading to more accurate distance measurements over a larger …
4. Map projections - Universiteit Twente
On a secant map projection - the application of a scale factor of less than 1.0000 to the central point or the central meridian has the effect of making the projection secant - the overall distortions are less than on one that uses a tangent map …
5. Map Projections - Kutztown University of Pennsylvania
There are two projection cases, Tangent and Secant. Tangent case means that the developable surface comes into contact with only the surface of the globe (see below). For the Azimuthal class, tangent case means that the paper …
Map projection - Wikipedia
Comparison of tangent and secant cylindrical, conic and azimuthal map projections with standard parallels shown in red. The developable surface may also be either tangent or secant to the sphere or ellipsoid. Tangent means the …
Projected Coordinate Systems | Geospatial | USU
In some projections, the projection surface touches in one location, called a Tangent or line of tangency. Projections can also intersect or cut ‘behind’ the globe’s surface creating two locations or lines where the projection surface …
GEOG370 Module 1 Lesson 2-1 - University of Wisconsin–Madison
How do you know if a projection is tangent or secant?
Conic projections—ArcMap | Documentation - Esri
Map projection animations - Esri
Cylindrical projections—ArcMap | Documentation - Esri
Tangent Projection Definition | GIS Dictionary - Esri Support
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