Description:
3D Model of a map is a 3-dimensional graphic representation of a surface. This is also known as digital elevation model or digital terrain model. These are useful for surface analysis.
We are well experienced in creation of such 3D model of maps. We digitize the topographical maps with the contours. To prepare the 3D terrain on contours we provide Z-axis value to the digitized 2D contours. Sometimes customers provide the contour information as the survey data. We are equipped with the right software for the creation of contours and terrain models from the contours.
Hardcopies were scanned to use as a reference for heads-up digitization. Digitization of the all the maps was done using AutoCAD 3D Map. Different features such as roads, railways, rivers, streams and contours were digitized in individual layers. Z-axis value was assigned to each contour line. Customer had been consulted for the missing height of contours and data file was created using the AutoCAD Land Development Desktop. The Triangulated Irregular Network (TIN) was created from the contour map. Various 2D-thematic layers such as roads, railways, rivers, and streams were then overlaid over the TIN.
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