各类投影方法(国外英文资料).docVIP

各种投影方式(国外英文资料) Penner projection, which is the same as the false conic projection. For the French, penner. The central meridian is a straight line, and other lines are symmetrical to the curve of the central meridian. The weft line is a concentric arc. There is no distortion in the central meridian and the standard parallel, and the farther from these two lines the greater the deformation. All of the weft lines on the graph have the same length and the same area. The penna projection is commonly used as a map of continents. Cylindrical projection of equal Angle cylindrical projection is a cylindrical projection with no deformation of the Angle and shape. It was created in 1569 by the Dutch cartographer Mercator, or Mercator projection or equiangular cylindrical projection. The longitude and latitude of the graph are parallel lines of direct interconnection, the intervals of the meridians are equal, and the spacing of the weft line increases with the latitude. At the equator, there is no error in the Angle, shape, and the greater the error of the higher latitude. The surface of the azimuth is a straight line, so it is widely used for plotting charts. Significantly, but the projection area of deformation in warp and weft latitude 60 ° area 2 times bigger than all, area ratio than the actual expanded four times. Near the 80 ° latitude, longitude and latitude scale is expanding, nearly six times the area expanded 33 times. So on the Mercator projection, more than 80 ° latitude region is not painted out. The map of the time zone and the map of southeast Asia in the world atlas used by middle schools are drawn from this projection The transverse Mercator (pseudo cylindrical projection) is a projection of the map. Its a conditional projection. It is modified by a certain condition. The projection of the latitude is a set of parallel lines, and the poles represent points or lines. The longitude line, except the central longitude line is one line, the other longitude lines