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 …

Dec 3, 2025 · In a gnomonic projection, great circles are mapped to straight lines. The gnomonic projection represents the image formed by a spherical lens, and is sometimes known as the …

May 28, 2025 · A gnomonic projection is a map projection that projects points from the surface of a sphere onto a tangent plane using lines originating from the center of the sphere, preserving …

Dec 16, 2025 · For a sphere, the gnomonic projection is a projection from the center of the sphere onto a plane tangent to the center point of the projection. This projects great circles to straight …

May 29, 2025 · 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.

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.

Its name is derived from the gnomon, the face of a sundial, since the meridians radiate like hour markings. This projection is also known as a gnomic or central projection. This implementation …

Sep 2, 2025 · An azimuthal projection that is a perspective projection and is neither conformal nor equal-area. Also called the Gnomic or Central projection and was known as the horologium …

A good mathematical description of the gnomonic projection can be found at Wolfram MathWorld. The following gives details of the maths used in our implementation of the projection in Java …

Dec 6, 2016 · noun : an azimuthal projection of a part of a hemisphere showing the earth's grid as projected by radials from a point at the center of the sphere onto a tangent plane so that all …