Map and Model Types

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Map and Model Types

Several graphic topographic representations may be generated, including 2D maps, models of contours in 3D space, solid contour prisms and triangulated nets.

2D Maps

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Topographic maps consist of contour polygons on the XY plane, (Z = 0). Each contour is a separate 2D polygon. The height (Z value) of the contour appears as a text entity. Text size and attributes are determined by the current \atext settings.

3D Contour Models

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Models of 3D contours consist of contour polygons created at the appropriate height (Z value). The height (Z value) does not appear as a text entity. Each contour is a separate 2D polygon entity.

Solid Contour Prisms

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Solid contour prism models are sets of simple solid entities based on the 3D contours. Each prism is a separate 3D solid. The prisms produce more dramatic effect on the contour lines than the 3D contour model.