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Splines to Plines and Back to Basics
March 24, 2005
The CAD Times
An AutoCAD Newsletter for CAD Users
The CAD Times brings you the latest AutoCAD tips, tricks and articles that can help you become a more efficient CAD user.
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AutoCAD 2006 - 20th Release
Autodesk announced on March 15, 2005, that
AutoCAD 2006 ®, the 20th release of it’s global design software, is now
Some of our favorite new features include... Please click here to read the full AutoCAD 2006 ® new features article.
This month's tips!
Splines to Polylines
I recently had the need to convert splines to polylines. I wanted to create closed polylines within the boundaries of the splines.
My attempt to create closed polylines, using the boundary command, only resulted in the creation of regions ... which was of no use to me.
After scratching my head for a while, I scoured the net and some CAD forums to find an answer. What I found was third party software to convert splines to polylines.
"Come on!", I thought to myself, "There must be a way to do this in AutoCAD".
So on the phone I went to talk with an old co-worker of mine that I periodically exchange CAD problems/solutions with.
"DXFOUT it to release 12", my old pal said, "Then DXFIN the file and those splines should be converted to polylines".
"Great!", I shouted as I thanked him, and off I went to DXF land.
And you know what? It did work... BUT, what I got was a BAZILLION polylines! That didn't help create closed polylines using the boundary command too much.
So I traced the splines as best as I could for the next 3 hours or so, and was finally able to create closed polylines using the boundary command.
My point? Time is money.
One hour surfing the net, phone time, plus 3 hours of tracing: X my hourly rate of $400/hr (he he, just kidding, that would be nice though ;) = do I consider buying some 3rd party software help?
If that project had been big enough to justify a third-party purchase I would have made the leap, but it didn't.
I learned a good lesson though -- every now and then you need to bite the bullet and take the leap; whether it's 3rd party software or farming out for some programming help. Sometimes it's not worth the time and money to try to do it all yourself.
Some Useful System Variables
Now you would like to mirror the left onto the right and include the text.
Problem is – the text now looks backwards (you
know, as it would look in a MIRROR ;)
Some Useful Commands
Chances are, the last user of the drawing
either had a slow computer or the file size is pretty big.
LTSCALE and PSLTSCALE
Until next month :)
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