41. As a result, the answer is independent of which map projection is used or where it is centered. 42. Since any map projection is a representation of one of those surfaces on a plane, all map projections distort. 43. But the term " cylindrical " as used in the field of map projections relaxes the last constraint entirely. 44. Imagine a map projection showing the whole surface of the earth on a flat screen, such as this image. 45. Since any map projection is a representation of one of those surfaces on a plane, all map projections distort. 46. The environment has a state that includes parameters such as the geographic region covered and the map projection in use. 47. Common conversion tasks include conversion between geodetic and ECEF coordinates and conversion from one type of map projection to another. 48. The main lobe of the pattern is flanked by two sidelobes, which appear curved due to the global map projection . 49. All geographic coordinates being scaled and referenced to the Universal Transverse Mercator Map Projection and the North American Datum of 1983. 50. Superimposing these distortion ellipses on the map projection conveys the way in which the point scale is changing over the map.
