I have had some experience working in GIS software, I'm especially fond of the querying and automating capabilities that GIS offers. Im curious as to whether CAD has something similar. Specifically, I am trying to develop a routine that can query a building plan for intersecting lines, extract coordinates to spreadsheet format, assign attributes to various lines/polylines/drawing elements. Basically GIS type functionality but for buildings. I've looked into dbConnect and AutoLISP but neither seems to offer these capabilities.
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Queries on AutoCAD
- Thread starter awa5114
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You can do that with Autolisp (and vlisp functions). I recall "hot tip Harry" of Cadence posted a routine many years ago that found all points of intersection of all objects in a drawing. Will need to add checks to filter out matching endpoints vs intersections. Easy to write results to a text file or csv file. Can add information to objects as xdata or to a dictionary.
AutoCad Map has GIS functionality. There are also AutoCad add-ons from various sources such as:
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