Relief Shading (or Hill Shading)
This technique was created to give a flat map a 3D visual impression. It is designed to simulate the effect of the shadow cast by relief features such as mountains, ranges and gorges.
relief shading
Shadows drawn on a map to simulate the effect of the sun's rays over the varied terrain of the land. Referenced by: Cartographic relief depiction.
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Natural Sun Angle, map oriented north-down With this map we can have a natural sun angle -- and effective relief shading -- at the expense of the cartographic convention for keeping north at the top of the map.
[cartography] A map that represents the vertical and horizontal positions of features, showing relief in some measurable form, such as contour lines, hypsometric tints, and relief shading.
Another method of showing topography is relief shading, an artistic impression of elevation, which creates a 3-dimensional view. The addition of colour between selected contour intervals also serves to highlight elevation or depth.
relief shading Technique for making hypsography on a map appear three dimensional by the use of graded shadow effects. Generally, the features are shaded as though illuminated from the northwest.
usage, this involves generation of elevation data in electronic form. It is often considered to include the graphic representation of the landform on a map by a variety of techniques, including contour lines, Hypsometric tints, and relief shading.
 See also: Relief, Map, Shading, Location, Area
  
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