AutoCAD Map 3D General Discussion

AutoCAD Map 3D General Discussion

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Active Member
navathayerram2002
Posts: 6
Registered: ‎05-04-2011
Message 1 of 9 (833 Views)
Accepted Solution

Extrusion command procedure

833 Views, 8 Replies
05-05-2011 04:31 AM

Shape file with the height as an attribute data is imported in Autocad map3D. Can these polygons be extruded at a stretch taking the height given in the attribute?

 Thanks

1. Open a new blank dwg.  Use mapiport to import the shape file and create object data during the import, make sure you check the box to create closed polylines from polygons.

2. Save that dwg and close it.

3. Open a new dwg or your project dwg. Use the maps dwg attach commad to attach the dwg you create in step 1. (Not Xref attach)

4. Create a query using location = all, and alter properties. in the alter properties section use the expression  :Elevation1@gpallyCopy.

5. Run the query in draw mode.

 

Query.png

*Expert Elite*
Murph
Posts: 2,086
Registered: ‎11-13-2006
Message 2 of 9 (827 Views)

Re: Extrusion command procedure

05-05-2011 05:44 AM in reply to: navathayerram2002

Yes. With an alter property query.

http://map3d.wordpress.com/2009/08/17/putting-3d-back-in-map3d/

Murph
Supportting the troops daily.
Active Member
navathayerram2002
Posts: 6
Registered: ‎05-04-2011
Message 3 of 9 (808 Views)

Re: Extrusion command procedure

05-06-2011 03:07 AM in reply to: navathayerram2002

Thank u very much for ur reply...... I have some doubts when i was executing the procedure that was given in the site. How can i write a LISP expressions and also the elevation is varying elevation for different polygons. I am attaching the shapefile where the blocks have to be extruded to the height given in the attribute table.

*Expert Elite*
Murph
Posts: 2,086
Registered: ‎11-13-2006
Message 4 of 9 (804 Views)

Re: Extrusion command procedure

05-06-2011 05:07 AM in reply to: navathayerram2002

1. Open a new blank dwg.  Use mapiport to import the shape file and create object data during the import, make sure you check the box to create closed polylines from polygons.

2. Save that dwg and close it.

3. Open a new dwg or your project dwg. Use the maps dwg attach commad to attach the dwg you create in step 1. (Not Xref attach)

4. Create a query using location = all, and alter properties. in the alter properties section use the expression  :Elevation1@gpallyCopy.

5. Run the query in draw mode.

 

Query.png

Murph
Supportting the troops daily.
Active Member
navathayerram2002
Posts: 6
Registered: ‎05-04-2011
Message 5 of 9 (802 Views)

Re: Extrusion command procedure

05-06-2011 05:59 AM in reply to: navathayerram2002

Thanks a lot.  U are a saviour for me. 

 

 Can u tell me how can i model a roof the extruded drawing. I need to model a tatched roof(inclined) like a hut. Please

Active Member
navathayerram2002
Posts: 6
Registered: ‎05-04-2011
Message 6 of 9 (799 Views)

Re: Extrusion command procedure

05-06-2011 06:05 AM in reply to: navathayerram2002

Also i have a doubt regarding the query that was made. After we run the query we get the extruded polylines. We have to hatch it and then can be seen as polygons. Now can this can be saved. I mean can this dwg can be saved as polygons only?  Will these stay as polygons when i open in Arc Map?

*Expert Elite*
Murph
Posts: 2,086
Registered: ‎11-13-2006
Message 7 of 9 (794 Views)

Re: Extrusion command procedure

05-06-2011 10:28 AM in reply to: navathayerram2002

1. You will have to model the roofs on each one individually with the 3d modeling tools in AutoCAD.

2. They are not extruded plines and not a 3d solid/surface object they are a 2d polyline with a thickness.

3. The dwg once saved is a standard AutoCAD dwg file, other than the object data it acts just like any other dwg file.

4. If you are wanting 3d objects in E$RI why not use the 3D analysis module and ArcInfo?

 

 

Murph
Supportting the troops daily.
Active Member
navathayerram2002
Posts: 6
Registered: ‎05-04-2011
Message 8 of 9 (790 Views)

Re: Extrusion command procedure

05-06-2011 10:28 PM in reply to: navathayerram2002

I have tried using Arc Scene and i got the 3D model. But the texture modeelling and also the exact shape modelling is not not comming there. I have used google sketch up for roof modelling. But the problem is that from some of the houses which are not exactly rectangle or sqare the roof is not comming properly. And hence i studied on paper where 3D modelling can be done in autocadd map#d or Civil 3D. 

New Member
azizulalamtoton
Posts: 1
Registered: ‎05-10-2012
Message 9 of 9 (611 Views)

Re: Extrusion command procedure

05-10-2012 05:21 AM in reply to: Murph

Hello, Thanks for your tutorial. I am following the whole process. But I failed. My data contain huge structure (Not lower like 10 as you mentioned in tutorial). Now I could not understand on thing. That is,

 

"First thing I did was assign a color to each layer, then hatched each closed polyline.  I then linked each hatch to the same record as the polylines. I did this manually seeing there were only 10 it wasn’t too much of a task."

 

I need not color it. SO skipped that step. But how could I link a huge number of hatch to the same record as the polylines? I even tried to liked one record but failed to do that. Could you say how to link OD of a shapefile to huge ammount of hatches (500 structure)?

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