Planar projection - Wikipedia
Planar projections are the subset of 3D graphical projections constructed by linearly mapping points in three-dimensional space to points on a two-dimensional projection plane. The projected point on the plane is chosen such that it is collinear with the corresponding three-dimensional point and the centre of projection .
What is a planar projection map in human geography?
2024年6月22日 · A planar projection, also known as an azimuthal or zenithal projection, is a map projection that transforms points from a spherical or spheroid surface onto a tangent or secant plane. This means that the curved surface of the Earth is represented on a flat surface, allowing for a more convenient analysis of geographical features and relationships.
Projection types—ArcMap | Documentation - Esri
A planar projection is tangential to the globe at one point. Tangential cones and cylinders touch the globe along a line. If the projection surface intersects the globe instead of merely touching its surface, the resulting projection is a secant rather than a tangent case.
2.3 What are Map Projections? | GEOG 160: Mapping our …
Planar projections also yield meridians that are straight and convergent, but parallels form concentric circles rather than arcs. Planar projections are also called azimuthal because every planar projection preserves the property of azimuthality, directions (azimuths) from one or two points to all other points on the map.
Planar projections—ArcMap | Documentation - Esri
A planar projection is also known as an azimuthal projection or a zenithal projection. This type of projection is usually tangent to the globe at one point but may be secant also. The point of contact may be the North Pole, the South Pole, a point on the equator, or any point in between.
解决纹理拉伸的办法——Triplanar Projection(三平面投影) - 知乎
Triplanar projection是一种基于表面法线的纹理投影技术，它可以在表面的三个平面方向上使用三个2D纹理来进行投影，从而创建出更加真实和自然的纹理映射效果。
Planar projections
Planar projections. Planar projections, also called azimuthal projections, project map data onto a flat surface. The simplest planar projection is tangent to the globe at one point. Although the point of contact may be any point on the earth's surface, the north and south poles are the most common contact points for most GIS databases.
29. Classifying Projection Methods | The Nature of Geographic …
Planar projections also yield meridians that are straight and convergent, but parallels form concentric circles rather than arcs. Planar projections are also called azimuthal because every planar projection preserves the property of azimuthality.
Projection Properties | GEOG 486: Cartography and Visualization
Azimuthal projections are planar projections on which correct directions from the center of the map to any other point location are maintained. The stereographic projection is another example of an azimuthal projection.
Stereo Projections: Background, Mathematics, and Use
Linear planar geometric projections refer to mappings of 3D geometry onto an infinite plane (the projection plane) using a family of straight lines called projectors. There is an excellent survey by Carlbom and Paciorek that describes the history, mathematics, and common uses of planar geometric projections.
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