Converting from 3TM to UTM coordinate system drawing features disappear

Converting from 3TM to UTM coordinate system drawing features disappear

Anonymous
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Converting from 3TM to UTM coordinate system drawing features disappear

Anonymous
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I was very excited when I learned how to convert a drawing from one coordinate system to another. However, the drawing features disappear as soon as I save it. I used the "attach" and then "query drawing" function in the Map Task Pane to accomplish the conversion and everything worked fine until I tried to save it.

 

Here were my issues:

1. I was given a drawing that uses 3TM - our city, in its infinite wisdom. has chosen this projection for whatever reason. (I'm sure there is a good one.) 

2. The problem is, I have hundreds of sample point locations that I need to bring into this drawing and they are in UTM NAD83. I know I could convert the points instead but I have a feeling there will be other dwg data coming and it will be in UTM.

3. The original drawing had hundreds of layers and I couldn't do the query all in the one go as suggested by @ChicagoLooper (who gives so much excellent advice BTW). So I decided to change all the layers to ONE layer, called CONVERT (after I exploded everything in the drawing - I know, a no-no but at this point I don't care.)

4. The conversion worked great! The drawing is now in UTM and I can bring in the air photo and points and all is well in the world. Except. When I go to save the drawing, the lines that I had brought in disappear. Upon further investigation is appears that these lines come in as one solid entity, like a block, or a preview! 

 

Is there another secret toggle that AutoCAD has skillfully hidden that I need to execute in order to have the conversion "stick"? Please help!

 

I am using AutoCAD Civil3D Infrastructure 2020

 

Thank you in advance,
Liesl

 

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Pointdump
Consultant
Consultant
Accepted solution

Hi Liesl,
Did you "Detach" the attached drawing after querying? It usually warns you that you need to do that before closing.
Dave

Dave Stoll
Las Vegas, Nevada

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Message 3 of 3

Anonymous
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AHA! Well not quite .... you choose "execute as defined" under current query. (The other option is "execute as preview" which I suspect is the default.)

 

Works like a charm now. Thank you Dave!