Archive for the ‘autocad’ Category

Blog Roundup

There’s some useful info out there:

Dave Dixon has some really useful info on Speeding Up Civil 3D.  I suspect these tips will work for vanilla AutoCAD as well.

Ellen Finkelstein on Clipping Blocks

Justin Zeimba on the downsides of ClearType

Donnie Gladfelter shows us how to Create Blocks with Multiple Insertion Points

Shaan Hurley links hatches to tables

Aleksandr Smirnov has a nice collection of LISP routines


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[update 9-Sep-2015: the AutoCAD coordinizer was down for a while, now it is back! More info here.]

Happy New Year!  I’m back, and I have present for you.

I’m proud to reveal my latest bit of coding handiwork, the AutoCAD Coordinizer.  I originally created this in PHP, but didn’t have a free web host for it, so I just ported it to Python and put it on Google’s Apps site.

What it does, basically, is take the output of a LIST or ID command (or series of commands) and extract the X and Y values, placing them in a handy list.  I wrote it to simplify the creation of coordinate tables.


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I’m running Civil 3D 2009 on a PC with an Nvidia Quadro 3500 video card. I’ve recently taken a few steps to speed things up. First, I disabled Communications Center, which speeds up start times. Second, I installed the latest Nvidia Drivers. Finally, I installed the Nvidia Powerdraft Drivers.

I didn’t do any benchmarking, so I can’t say exactly what effect these changes had, but if you are having problems with AutoCAD’s speed, you might want to try a few of these things.

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For Your Amusement

This is pretty off-topic, but I did a search on our network drive for AutoCAD script files.  Below are the filenames.  Enjoy.


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Fractals in AutoCAD

This is cool:

Alien Flower

image by Kean Walmsley

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Here’s a handy utility:


It’s a free compiled LISP script. Use APPLOAD to load it into AutoCAD.

What it does is export all blocks in a drawing into separate drawing files in a folder of your choice. I find this to be useful when looking for poorly-defined blocks. I stumbled across WblockAll the other day when I had a drawing with a file size that seemed like it was about twice as big as it should be. I WblockAll’d the drawing, and immediately found a block that was half the size of the original file. That was my culprit. I replaced it with a smaller block in the drawing and my problem was solved. Thanks, Xanadu!

I’m sure you can find your own uses for it.

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Sometimes we need to export our drawing files from Civil 3D to plain vanilla AutoCAD. This may be necessary for a variety of reasons: the client or another consultant doesn’t have Civil 3D and they aren’t able to install the Civil 3D Object Enabler, or you are producing an archive set and don’t want to risk future versions of AutoCAD being unable to read old Civil 3D data. Also, given that Civil 3D surfaces take longer to load, you might want to produce vanilla AutoCAD versions of your design surfaces and pipe networks for use as base files on your plan set.

export menu

I’ve discovered a few issues with exporting from Civil 3D 2008 to vanilla AutoCAD, and have some workarounds.


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