Typically you will find the hatch files in this directory (folder):Ĭ:\Documents and Settings\(your username)\Application Data\Autodesk\(AutoCAD or LT version)\enu\support Hatch pattern files (.pat) are just ordinary text files consisting mainly of numbers, which is the code AutoCAD uses to draw the hatches. The patterns in both files are the same except for the dimensions used. acad.pat contains the hatch patterns used in imperial drawings, and acadiso.pat contains the hatch patterns used in metric drawings. The standard AutoCAD hatch files are acad.pat and acadiso.pat (aclt.pat and acltiso.pat for LT).
You need to locate your existing two standard AutoCAD (or LT) hatch files, open them in a text editor, then copy the hatch pattern code from my file (hatch_pattern_code.txt) into them. You will then see the new hatch patterns alongside the standard AutoCAD patterns in the "Other Predefined" tab when using the BHATCH command.
Make sure there is a carriage return at the end of the last line. And that's when I decided that it might be more expedient to come onto this newsgroup and beg for help.For newer versions of AutoCAD please use this tutorial for help with installing hatch patternsįor AutoCAD 2009, 2008, 2007, 2006, 2005, 2004 LT 2009, 2008, 2007, 2006, 2005, 2004Ĭopy and paste the entire contents of my file hatch_pattern_code.txt into your acad.pat hatch file and your acadiso.pat hatch file (aclt.pat and acltiso.pat hatch files for LT). Then it occurred to me that there maybe should have been other hatch patterns in the dialogue box after the "texture" pattern, since in they are displayed alphabetically and surely there would have been patterns whose names started with "U, V,W Y,Z". "Okay, so it appears that the acad.pat file is in the right place." In any case, I tried hatching with a few other patterns and there was no problem. If that were the case, then I would have been screwed because I couldn't remember where the file was supposed to go. (ie It used to be with older versions the acad.pat file would simply be placed in the \autocad\support directory but with this r 2005, I have vague memories of having to put it in some obscure (to me) place w-a-a-y outside of the autocad directory.) I then wondered if perhaps I had neglected to put the enhanced acad.pat file in all the places that it was supposed to go, way back when I added the extra hatch patterns. I wondered if perhaps the polyline wasn't closed and that that might have created problems so I drew a circle and tried to hatch that with the same pattern - same error message. It's been a while since I last used AutoCAD (r 2005) and I was making a quick sketch while critting a drawing and wanted to use a "texture" hatch pattern.Īfter having selected the "Object" to hatch as being a closed polyline I wanted to preview the hatch but received the "MIssing parameter on line 3702" message, and no visible hatching.
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