isxhy Posted January 16, 2013 Share Posted January 16, 2013 Dear Experts, I currently obtained a building plan map with rooms, doors, stairs,etc. My task is to extract the doors and tranform it as point. The doors have been represented as a connected arc and two lines. The size of map is fairly large and there is quite a lot of arcs, and so I have to use LISP to automatically extract the arcs based on specific algorithm. My current problems is quite simple: how to loop all drawing entities and extract the type of entities that I want? I want to know the AutoCAD commands, and if your can provide the algorithm, would be very appreciated! Many thanks for your help! Quote Link to comment Share on other sites More sharing options...
David Bethel Posted January 16, 2013 Share Posted January 16, 2013 (ssget) will be your friend here You can filter for entity type ("ARC") and layers ("0") if applicable A little more detail may help with your request. -David Quote Link to comment Share on other sites More sharing options...
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