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Hello, I'm in need of advice. A consultant (of our office roofing department) provided CAD drawings of roofs depicting various roof symbols to represent equipment, this survey was years ago so I had no hands in it. The office roof inspector is hoping I may be able to change all the symbols to be industry standard symbols as the consultant used their own. Originally I told the roofing department it would be easy as I would just write a lisp and a script to change all the symbols to the new blocks...or so I thought. As soon as I opened one of the consultant's files, those symbols...were not blocks, they were all comprised of lines, circles and hatches. In my frustration, I contacted the consultant and wanted a clarification on this, I got an apology that they simply drew the lines in and copied and pasted the symbols over and over again. I got 240 drawings to literally update overtime. Each drawing can have an average of 30 symbols. I was wondering if anyone has ever dealt with such an issue. Do you have any suggestions for me other than to shoot the consultant? kidding of course. Is there a way for autocad to recognize certain line patterns or hatch patterns (actually only the solids were used) and then store the x,y co-ordinates? Anything would be appreciated.