But first, let’s start with 3 examples of cylindrical projections. 1. Mercator Projection. The legendary Flemish cartographer Gerardus Mercator created the Mercator projection by mathematically projecting a vertically oriented cylinder tangent to the Equator.

A Miller cylindrical projection maps the globe onto a cylinder. A surface that can be unfolded or unrolled into a plane or sheet without stretching, tearing or shrinking is called a developable surface .

Cylindrical projection, in cartography, any of numerous map projections of the terrestrial sphere on the surface of a cylinder that is then unrolled as a plane. Originally, this and other map projections were achieved by a systematic method of drawing the Earth’s meridians and latitudes on the flat

The only normal cylindrical projections that preserve area have a north-south compression precisely the reciprocal of east-west stretching (cos φ). This divides north-south distances by a factor equal to the secant of the latitude, preserving area but distorting shapes.

The central cylindrical projection is a perspective cylindrical map projection. It corresponds to projecting the Earth's surface onto a cylinder tangent to the equator as if from a light source at Earth's center.

Cylindrical Projections. A cylindrical projection is produced by wrapping a cylinder around a globe representing the Earth. The map projection is the image of the globe projected onto the cylindrical surface, which is then unwrapped into a flat surface.

Cylindrical projections are a family of map projections that transform the globe onto a cylinder, which is then unrolled into a flat map. These projections are characterized by meridians (lines of longitude) that are equally spaced parallel lines, and parallels (lines of latitude) that are straight lines perpendicular to the meridians [ Kumar ...

1997年5月9日 · What is a cylindrical projection? A cylindrical projection can be imagined in its simplest form as a cylinder that has been wrapped around a globe at the equator. If the graticule of latitude and longitude are projected onto the cylinder and the cylinder unwrapped, then a grid-like pattern of straight lines of latitude and longitude would result.

i. The three classes of map projections are cylindrical, conical and azimuthal. The Earth's reference surface projected on a map wrapped around the globe as a cylinder produces a cylindrical map projection. Projected on a map formed into a cone gives a conical map projection.

On a cylindrical projection map, the longitude and latitude lines are straight. The Mercator, Mollweide, and Robinson world maps shown below illustrate three popular cylindrical map projections.