Document Type : Research Paper

Author

• Fereydun Khajenoori

Abstract

Relief maps are three-dimensional topographic representation of the earth on which the elevations are measured relative to a flat surface. Therefore, they will be different from a fully similar image of the earth, because except in special cases, the curvature of the base surface or the spherical shape of the earth is not considered in them. Moreover, on such maps the scale of altitude is sometimes not the same as the horizontal scale. These maps share some qualities with flat topographic maps, such as flat drawing, writings, elevation points and, possibly, contours and coloring.