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Extrusion direction relative to UCS?

10 REPLIES 10
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Message 1 of 11
steven_wang
5825 Views, 10 Replies

Extrusion direction relative to UCS?

I have a polyline, when I list the polyline, the coordinates and elevations are right, but show me "Extrusion direction relative to UCS: X= -0.012 Y= 0.018 Z= 0.958". when I viewed the polylines in Properties, the coordinates are still right, but the Elevations are totally wrong. Could anyone know how to fix the problem? Can I remove "Extrusion direction ..."? I need these polylines to generate a surface in Civil 3D or LDD.

Thanks!

Steven Wang
10 REPLIES 10
Message 2 of 11
Anonymous
in reply to: steven_wang

steven_wang wrote:

> Could anyone know how to fix the problem?

ToolPac's Object UCS Fix fill handle this. If this is a one time show,
send me the drawing to dotson at dotsoft.com and I'll fix it.

Terry
--
The Ultimate Productivity Add-On for AutoCAD
ToolPac 9.0 from http://www.dotsoft.com
Message 3 of 11
Anonymous
in reply to: steven_wang

Steven hi,

You can try a workaround I used once with points that had the same problem:

Export the geometry to ArcView Shape file and import it back again. It
should be "clean" now.

Arad



wrote in message news:5094548@discussion.autodesk.com...
I have a polyline, when I list the polyline, the coordinates and elevations
are right, but show me "Extrusion direction relative to UCS: X= -0.012 Y=
0.018 Z= 0.958". when I viewed the polylines in Properties, the coordinates
are still right, but the Elevations are totally wrong. Could anyone know how
to fix the problem? Can I remove "Extrusion direction ..."? I need these
polylines to generate a surface in Civil 3D or LDD.

Thanks!

Steven Wang
Message 4 of 11
steven_wang
in reply to: steven_wang

hi Arad

Could you please give me more detail instruction about that. I try to export the drawing by using export ArcInfo coverage or *.e00 under map menu in LDD. but I always got the results with 0 elevation. Did i miss something?

thanks

Steven Wang
Message 5 of 11
Anonymous
in reply to: steven_wang

Hi Steven,

Let me see if I remember correctly.

I had a file with a cloud of points that was not oriented to the WCS.

I created a UCS that was correct relative to the point cloud, and used
WBLOCK to export all the points to a new file.

This solved the orientation problem, but left the points with an extrusion.

The last step was to export all the points to a Shape file (ArcView, 3D).
Importing the Shape back to a clean file got me a fresh set of points that
were oriented correctly and with no extrusion.
Strange problem and a strange solution, but it worked for me. Try it.

Good luck,
Arad
Message 6 of 11
steven_wang
in reply to: steven_wang

hi Arad

Thanks for your help. I exported the all points to a Shape file (*.shp) and imported it to a new drawing, all the coordinates is correct but the elevations are converted to zero for all points. I don't know how to handle it.

My original problem is I have many breaklines (3dpoly) with various ucs directions. when I list them, the elevation is correct. Now I have to convert them to lines by exploring, then I utilized "drawing cleanup" and chose "delete original objects and creat new objects" to get rid of these extrusion direction. this is not a good way since I can not get the original 3dpoly back automatically.

thanks

Steven Wang
Message 7 of 11
Anonymous
in reply to: steven_wang

Hi Steven,

I think you might want to check the settings of the EXPORT command.

See the attached picture.

Arad
Message 8 of 11
steven_wang
in reply to: steven_wang

hi Arad

Finally, I got it. It is wonderful.

Thank you very much for your help.

Steven Wang
Message 9 of 11
Anonymous
in reply to: steven_wang

Steven,

You are most welcome.

Arad


wrote in message news:5097960@discussion.autodesk.com...
hi Arad

Finally, I got it. It is wonderful.

Thank you very much for your help.

Steven Wang
Message 10 of 11
refiq.pv
in reply to: steven_wang

Try this way.

 

work on a duplicate file to avoid any missing of datas. once you got the result you can save as with the original name.

----------------------------------------------------------------------------------------------------------------------------------------------------------

1. Explode the polylines.

2. Type "FLATTEN" and enter

3. Now you can join with polyline edit.

 

 

I hope this will work.

Message 11 of 11
chris_brenton
in reply to: refiq.pv

I recently was using the LINEWORKSHIRKWRAP on 3dline work and the command would be a LWPolyline that was drawn with extrusion direction relative to UCS.

 

The flatten command did not work and modified the line work with different x:and y: coordinates.

 

The solution I found is to use Civil3d's CONVERTPLINES.  Then use CONVERT3DPOLYS.  After doing these two commands, it generated a LWPolyline with a Z elevation that I was able to change back to Zero and removed the "relative to UCS".  This also kept the x and y coordinates the same.

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