Archive for April, 2010

Importing AutoCAD Objects as Surface data points

Do you receive drawings from Land surveyors intended for Layout or Plot purposes only? Containing Text or Block insertions with Text Attributes describing the elevation of the existing ground, but as flat objects with a zero elevation? And you want to create a surface of these objects with their corresponding values?
Then here is a short tutorial how to migrate these objects into data points fit for surface creation purposes.

 My first example shows a text object representing the existing ground elevation.

For Text objects Civil 3D will take the insertion point of the text as the (Northing, Easting) location for your C3D point and the text value as the elevation of that N, E point.

Here’s how to do it.

  1. Go to the Modify tab on the Ribbon and select Surface in the Ground Data panel.
  2. An extra Ribbon tab appears with the name Surface.
  3. Now go to the Surface Tools panel drop down menu and select the “Move Text to Elevation” command.
  4. Now select the text objects in the drawing editor.
    Note that the selected text doesn’t have any special characters or quotations included or it will not be elevated.
  5. Check (with the list command) if the moved Text Objects have an elevation corresponding the Text Value. If not, there’s probably special characters present in the text value. Resolve this before continuing.
  6. Create a surface via the Toolspace > Prospector tab and give it a proper name.
  7. Go to Toolspace > Prospector > Surface and expand the newly created surface and go to the Definition branch.
  8. In the Definition branch go to Drawing Objects and right-click to Add.
  9. In the Add Points From Drawing Objects dialog select Text as the Object type.

    If needed you can add a Description for the selected text to distinguish the imported points from other imported points. In the Preview pane of the Toolspace these points can then be edited (deleted) from the surface.
    Note: the description can’t be used to filter with Point Groups.
    Click OK.
  10. Select the text objects you want to add to the surface.

 
My second example include Block insertions with Attribute tags with a value representing the elevation.

For Blocks with Attribute Tags objects Civil 3D will take the insertion point of the Block Insertion as the (Northing, Easting) location for your C3D point and the text value of the chosen Attribute Tag as the elevation of that N, E point.

Here’s how we do it.

  1. Go back to step 3 in previous exercise but then select “Move Blocks to Attribute Elevation”.
  2. In the Move Blocks to Attribute Elevation dialog select the Block that has the associated attribute tag and a list of available attribute tags will appear where you can select from.
    Click OK to accept the selection of block insertions.
  3. Check (with the list command) if the moved Block Objects have an elevation corresponding the Text Value of the Attribute Tag. If not, there’s probably special characters present in the text value. Resolve this before continuing.
  4. Now create a surface and go to the created surfaces Definition branch and right-click to Add.
  5. In the Add Points From Drawing Objects dialog select Text as the Object type.

    If needed you can add a Description for the selected Block Attribute Tags.
    Note: like the the Descriptions with Text Objects this can’t be used to filter with Point Groups.
    Click OK.
  6. Select the block insertion objects you want to add to the surface.

I’ve only explained two types of AutoCAD Objects that you can import into Civil 3D as Surface Data. Other AutoCAD objects that you can import from are listed below:

April 27, 2010 at 6:55 pm 3 comments

Autodesk Subscription download source

If you are on Subscription, you probably know that you can download the software you’re subscribed to. Working as a technical CAD application administrator at work we make several deployment images of several Autodesk software like AutoCAD (vanilla), Map 3D, Civil 3D, Inventor Suite and more of these apllications where the install source on the media is getting bigger and bigger in size by the years. So to speed up the installations of the software we create ISO files of each install media and mount them though virtual media CD/DVD drivers. During one of our preparations of a deployment of Inventor Suite we discovered that the client deployment missed all the selected content libraries. This was a fault on the deployment and a work a round was soon published by Autodesk via their Knowledge Base.
Since it is possible to download the install media source we recently make use of this feature. Lately my collegae at work notified me that the download source is different then the the original delivered install media on CD/DVD. He discovered that the libraries of the Inventor 2010 Suite deployment were deployed correctly with the selected libraries when he uses the install source from the Subscription download pages.
We also had the same kind of problems with the content libraries of Civil 3D 2010. So knowing this I presumed that the download source would be changed for Civil 3D 2010 too.
And yes, it is. I just created a client deployment of Civil 3D 2010 with the downloaded install source from Autodesk Subscription web and the content libraries are correctly installed.

So the following install source from the Subscription web and from what I know now has changed to their benefits:

  • Inventor 2010 Suite
  • Civil 3D 2010

Thanks Autodesk.

April 2, 2010 at 11:08 pm Leave a comment


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