5/2/2023 0 Comments Qcad purge xrefHow so many got there in the first place is astonishing considering none of them were “visible.” Not only did my Civil 3D drawing work faster, it also decreased in file size!Ĭompatible Drawing Versions That Can Be Purged Once I ran this routine on one of my AutoCAD® Civil 3D® drawing files, literally thousands of DGN related-data was purged from my drawing. I have personally noticed that having unused/unpurgeable DGN can cause a drawing’s file size to increase as well as slow down the drawing. AutoCAD has had the ability to import DGN files since 2008, but it has always been a challenge to completely purge any unused DGN data (even after Autodesk supplied a Hot Fix to combat the problem). from an AutoCAD drawing, this routine does an excellent job of purging both regular and complex DGN linetypes. On top of the routine effectively purging unused AutoCAD data such as blocks, layers, linetypes, etc. On the surface, the function of a routine called “Drawing Purge” may sound rather obvious and this routine could easily get passed over, but as we dig deeper into what it is capable of, I promise you will be quick to add it. In this article, I will review the routine “Drawing Purge,” created by Ajilal Vijayan (with additional code created by Kean Walmsley), which is available through the Autodesk Exchange website. ![]() Now, nearly 30 years later, the new challenge has become finding that special routine within the vast number and types of routines readily available for download. This was LONG before there was an Internet where you can simply search and download a new routine, which brings us to the point of this review. Depending on the length of code, I could spend hours retyping the code into an ASCII editor so that I would have a copy for myself (and hoping you typed every character correctly the first time), thereby being the envy of many of my fellow CAD users in our local user group. I remember waiting eagerly for the latest CAD magazines to come in each month just to check out what new routines were introduced. ![]() “LISt Processing”)-aka “Lost In Silly Parentheses” for you old school users-was introduced in AutoCAD® version 2.18 way back in 1986, creating add-on routines for AutoCAD has been both an adventure and a challenge to make AutoCAD work a little more efficiently, and make AutoCAD users’ lives a lot better. Back July 24th, 2015 Drawing Purge: Quick, Efficient Clean UpĮver since the LISP programming language (i.e.
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