Conic projections are not widely used in mapping because of their relatively small zone of reasonable accuracy the secant case, which produces two standard parallels, is more frequently used with conics.

Like the map-makers at big name outfits such as the national geographic society and rand mcnally--whose work he compares to carter-era chrysler cars, not up to world standards--imus begins with a computer-generated, two-dimensional conic projection. Conic projection [kŏn ′ ĭk] a map projection in which the surface features of a globe are depicted as if projected onto a cone typically positioned so as to rest on the globe along a parallel (a line of equal latitude.

A map projection is a systematic transformation of the latitudes and longitudes of locations from the surface of a sphere or an ellipsoid into locations on a plane maps cannot be created without map projections all map projections necessarily distort the surface in some fashion.

In the orthographic conic projection, all rays are parallel to that line and normal to the surface in the stereographic, they shoot from the antipodal point and in the centrographic, from the center of the sphere. Conic projection definition is - a projection based on the principle of a hollow cone placed over a sphere so that when the cone is unrolled the line of tangency becomes the central or standard parallel of the region mapped, all parallels being arcs of concentric circles and the meridians being straight lines drawn from the cone's vertex to the.

The most simple conic projection is tangent to the globe along a line of latitude this line is called the standard parallel the meridians are projected onto the conical surface, meeting at the apex, or point, of the cone parallel lines of latitude are projected onto the cone as rings the cone is. A lambert conformal conic projection (lcc) is a conic map projection used for aeronautical charts, portions of the state plane coordinate system, and many national and regional mapping systems. When you place a cone on the earth and unwrap it, this results in a conic projection examples are albers equal area conic and the lambert conformal conic.

Conic projections are general cases of azimuthal and cylindrical projections all maps above occupy the same area, because the three projections used (actually all particular versions of albers's conic) are equal-area and were applied at identical scaling factors.

- Conic projection conic projection or conical projection n a method of projecting maps of parts of the earth's spherical surface on a surrounding cone, which is then flattened to a plane surface having concentric circles as parallels of latitude and radiating lines from the apex as meridians conic projection or conical projection n (physical geography.

Conic projection

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