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A digital elevation model (DEM) or digital surface model (DSM) is a 3D computer graphics representation of elevation data to represent terrain or overlaying objects, commonly of a planet, moon, or asteroid.
Comparison of several types of graphical projection, including elevation and plan views. To render each such picture, a ray of sight (also called a projection line, projection ray or line of sight) towards the object is chosen, which determines on the object various points of interest (for instance, the points that are visible when looking at the object along the ray of sight); those points of ...
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Download as PDF; Printable version ... higher elevation. In geology, 3D fold evolution is the ... to the diagram. Based on He and Li (2009). Elevation of wind gaps ...
3D projections use the primary qualities of an object's basic shape to create a map of points, that are then connected to one another to create a visual element. The result is a graphic that contains conceptual properties to interpret the figure or image as not actually flat (2D), but rather, as a solid object (3D) being viewed on a 2D display.
GSI3D software interface. GSI3D (Geological Surveying and Investigation in 3 dimensions) is a methodology and associated software tool for 3D geologic modeling developed by Hans-Georg Sobisch (INSIGHT Geologische Softwaresysteme, Germany) over the last 20 years initially in collaboration with the Geological Survey of Lower Saxony (LBEG) and the Oldenburg-Ostfriesland Waterboard (OOWV) in ...
Classification of Axonometric projection and some 3D projections "Axonometry" means "to measure along the axes". In German literature, axonometry is based on Pohlke's theorem, such that the scope of axonometric projection could encompass every type of parallel projection, including not only orthographic projection (and multiview projection), but also oblique projection.
In 3D computer graphics, a wire-frame model (also spelled wireframe model) is a visual representation of a three-dimensional (3D) physical object. It is based on a polygon mesh or a volumetric mesh, created by specifying each edge of the physical object where two mathematically continuous smooth surfaces meet, or by connecting an object's constituent vertices using (straight) lines or curves.