Spline

[scottsss]

Quick question to those who know more about AutoCad then me. How do you convert a line that is a spline to a Pline so I can join them. I need to do this so I can make a 3D model. I have read the help file but well that is just confusing me more. Thanks

[wjbzone]

I'm not sure if Autocad has a command to do that.

There is one if you have Toolpac (from dotsoft.com)

Bill.

[Mariss Freimanis]

Go to "Modify", pick "Polyline", then select the spline. On the command line "Enter an Option", enter "D" for De-curve and hit enter. It now becomes an ordinary p-line.

Mariss

[scottsss]

Tried that. Once I select Polyline it will not let me select the Spline. Says it is not a polyline.

[CNCadmin]

Post the file here and I'll give it a try.

[scottsss]

New to this group, do I just attach it like a picture? Or do I post it to the files section? WOuld it be easier to send to your e-mail?

[CNCadmin]

You attach it like a picture BUT you have to zip it.

[Mariss Freimanis]

OK,

Perhaps the spline was not generated by ACAD?

Try "explode", zoom in on an end line segment (there may be a LOT of them, depending on the spline).

From Modify pick "Polyline" and select an end line segment. Answer "yes" to "do you want to turn it into a polyline?", then enter "J" for "join" and select all the segments with a "crossing box" selection.

That should give you a multi-segment polyline you can join.

Mariss

[scottsss]

Here is the file.

I have only had one semester of AutoCAD. Not encountered this problem before. Thanks for the help.

[wjbzone]

I converted it to a polyline in layer polyline.

Used toolpac with 0.05 point spacing.

Bill

[ger21]

If you're going to extrude it, you don't have to join them together, you can make them a region and use that.


Gerry

[Mariss Freimanis]

Very interesting. It seems you may have used a 3D-polyline; a very nasty and hard to near-impossible to edit thing unless you really need 3D capability. Use an ordinary polyline in the future for 2D stuff.

The only way I was able to unravel it was to save your .dwg file as an R12 .dxf file, then re-open it and save it as an ACAD2000 .dwg file. It was then possible to explode everything into lines, convert one segment to a polyline, then join all the rest.

Because the former splines didn't exactly join your polylines, I had to use move endpoint to endpoint Osnap. The result is the attached .dwg file.

Hope that helps. I will draw up your part properly next. It should be a much smaller file.

Mariss