Conic map projection pdf

This requires a systematic transformation of the latitudes and longitudes of locations from the surface of the globe into locations on a plane. Conic projections are appropriate for these cases because they show the mapped area with less distortion than other projections. If made smaller, the cone will intersect the earth twice, in which case it is called secant. All projections of a sphere on a plane necessarily distort the surface in some way and to some extent. Conic projection definition, a map projection based on the concept of projecting the earths surface on a conical surface, which is then unrolled to a plane surface. A map projection is used to portray all or part of the round earth on a flat surface. The stereographic map projection is another ancient projection, dating back to the second century b. Lambert conformal conic equidistant conic simple conic polyconic. Conic projection, the parallels near the northern and southern edges are closer together.

Conic map projections are appropriate for mapping regions at medium and large scales with eastwest extents at intermediate latitudes. Lambert conformal projection topography britannica. Map projection is the method of transferring the graticule of latitude and longitude on. Namely, the size of the li near deformatio ns is analy sed and show.

This presentation discusses the general properties of conic map projections and the concept of meridian convergence. Modified poly conic projection and t he lambert conic pro jectio n on the example of a geogr aphical map at scale 1. Apart from the best map projection, the paper also describes other conic projections still used in the official cartography of serbia. We will taker a closer look at the popular mercator projection and examine how the projection. Lambert conformal conic projection, whereas states. The stereographic map projection is conformal but not. Conic projection definition of conic projection by the. The most simple conic projection is tangent to the globe along a line of latitude. Although the earth is best represented by a spheroid. For the normal aspect, the apex of the cone lies on the polar axis of the earth. Projections created from different surfaces would include cylindrical, conical, and azimuthal projections. Conic projection definition of conic projection at. Regular cylindrical and conic projections orient the axis of the. Pdf in this paper, we introduce some known map projections from a model of.

However, it is neither a conformal nor an equalarea projection. In cartography, a map projection is a way to flatten a globes surface into a plane in order to make a map. A conic projection is derived from the projection of the globe onto a cone placed over it. Pdf optimal map conic projection a case study for the. The stereographic map projection is most useful for maps of polar regions for navigation purposes or large continentsized areas of similar extent in all directions. Map projections explained a beginners guide youtube.

In order to minimize the distortion of the mapped area, the two standard. Automating the selection of standard parallels for conic. Map projection a map projection is a systematic representation of a round body such as the earth or a flat plane surface. Understanding map projections landing page for kartoweb. Each map projection has specific properties that make it useful for specific purposes. Cylindrical map projections are more frequently used for land surveying and mapping at larger scales as in the case of topographic maps and conical projections. Lambert conformal projection, conic projection for making maps and charts in which a cone is, in effect, placed over the earth with its apex aligned with one of the geographic poles. Learn what a map projection is, why they are used and what impact they have on maps gis systems. A map projection is used to portray all or part of the. Rhumb linea rhumb line is a line on the surface of the earth cutting all meridians at the same. If the cone touches the earth at just one particular parallel of latitude, it is called tangent. The widthtoheight ratio grows from 1 at the topleft to 3 at the bottomright. The cone is so positioned that it cuts into the earth at one parallel and comes out again at a parallel closer to the equator.