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ChicagoLooper
en respuesta a: Anonymous

A planimetric map around the transmission line is merely a map that places all objects on the same plane, or where z=0. Planimetric maps do not have line work that is 'elevated' to its respective distance 'above mean sea level.'

 

Your Lidar data typically has x, y, and z data, i.e. a building's roof will be higher than its base footprint, tree canopy will be higher than trunk base and top of city furniture ( telepnoes poles, fire hydrants, street signs) are higher than ground level.

 

Since typical Lidar data provides you with enough info to draw in 3-dimensions, the requirement to draw a planimetric map is simply telling you to draw the map around the transmission lines in 2-D and not 3-D. Of course, when a map is viewed directly from above, plan view, it doesn't matter if you draw in 3-D or 2-D because your resulting deliverable will look the same. The effort involved, however, to draw in 3-D as opposed to 2-D, would be greater when drawing in 3-D. Generally speaking, there is no 'added value' to draw in 3-D when your deliverable is a plan view.   

Chicagolooper

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