Gnomonic projection - Wikipedia
A gnomonic projection, also known as a central projection or rectilinear projection, is a perspective projection of a sphere, with center of projection at the sphere's center, onto any plane not passing through the center, most commonly a tangent plane.
Gnomonic Projection -- from Wolfram MathWorld
3 天之前 · The gnomonic projection is a nonconformal map projection obtained by projecting points P_1 (or P_2) on the surface of sphere from a sphere's center O to point P in a plane that is tangent to a point S (Coxeter 1969, p. 93). In the above figure, S is the south pole, but can in general be any point on the sphere.
Interactive Gnomonic Map - GEOGRAPHY EDUCATION
2015年9月30日 · As stated on USGS map projections page: “[Gnomonic maps are] used by some navigators to find the shortest path between two points. Any straight line drawn on the map is on a great circle, but directions are true only from center point of projection.” This interactive is a very fun way to visualize this and to understand distortion.
Gnomonic—ArcMap | Documentation - Esri
Gnomonic is an azimuthal projection that uses the center of the earth as its perspective point. It projects great circles as straight lines, regardless of the aspect. The projection is not conformal nor is it equal-area. This is a useful projection for navigation because great circles highlight routes with the shortest distance.
Projection Properties | GEOG 486: Cartography and Visualization
In Figure 5.5.7 below, a gnomonic projection occurs when the point of projection is Earth’s center. Stereographic maps have a point of projection on the side of Earth opposite the plane’s point of tangency; the point of projection for an orthographic map is at infinity.
Gnomonic—ArcGIS Pro | Documentation - Esri
Gnomonic is an azimuthal projection that uses the center of the earth as its perspective point. It projects great circles as straight lines, regardless of the aspect. The projection is not conformal nor is it equal-area. This is a useful projection for navigation because great circles highlight routes with the shortest distance.
Azimuthal Projection: Orthographic, Stereographic and Gnomonic
The azimuthal projection plots the surface of Earth using a flat plane. For example, common azimuthal projections are gnomonic, stereographic & orthographic
gnomonic - MathWorks
This is a perspective projection from the center of the globe on a plane tangent at the center point, which is a pole in the common polar aspect, but can be any point. Less than one hemisphere can be shown with this projection, regardless of its center point.
22. Gnomonic projection | Eu, Mircea - neacsu.net
The Gnomonic is the perspective projection of the globe from the center onto a plane tangent to the surface. It was used by Thales (636?-546?B.C.) of Miletus for star maps. Called “horologium” (sundial or clock) in early times, it was given the name “gnomonic” in the 19th century.
Gnomonic projection - GeoGebra
A gnomonic map projection displays all great circles as straight lines, resulting in any straight line segment on a gnomonic map showing a geodesic, the shortest route between the segment's two endpoints.