AutoCAD Map 3D General Discussion

AutoCAD Map 3D General Discussion

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Contributor
indianadarren
Posts: 22
Registered: ‎07-30-2011
Message 1 of 6 (252 Views)

Coordinate tracker cycling, digitizing not working

252 Views, 5 Replies
04-25-2012 08:11 PM

Oh, I am drawing a map of my campus. I drew it to scale, tracing a raster image from Google Earth, but with no coordinate system assigned. Then I  assigned a Coord system (L-L, no datum) and tried to MOVE the geometry, based on the Google Earth coords of one of the building corners. 

Something is very wrong. When trying to digitize points with the Coordinate tracker  to where they ought to go, nothing is working. Also, the Coordinate tracker goes WILD as it moves across the screen, cycling many times though all 360 degrees of longitude over and over. File is attached. Any ideas?

 

*Expert Elite*
antoniovinci
Posts: 1,657
Registered: ‎06-03-2011
Message 2 of 6 (248 Views)

Re: Coordinate tracker cycling, digitizing not working

04-26-2012 12:32 AM in reply to: indianadarren

If you give us a Google Earth placement of your campus, I bet that someone will calibrate your existing beautiful map correctly, sir. 

Contributor
indianadarren
Posts: 22
Registered: ‎07-30-2011
Message 3 of 6 (236 Views)

Re: Coordinate tracker cycling, digitizing not working

04-26-2012 06:17 PM in reply to: indianadarren

That would be very nice, however, I still need to know HOW to do it in the end. I though by setting a coordinate system and then entering points with the digitizer they would automatically go to where they were assigned. Now the coordinate tracker seems like a joke. The campus is located at 118d58'18"W,  35d24'25"N.

thanks for the help...

 

*Expert Elite*
antoniovinci
Posts: 1,657
Registered: ‎06-03-2011
Message 4 of 6 (229 Views)

Re: Coordinate tracker cycling, digitizing not working

04-27-2012 12:10 AM in reply to: indianadarren

First rate the attached one, then we're gonna talk about the right workflow.

In advance, I apologize 'cause I don't know imperial units, so I hope I guessed all.

Basing on your GPS pair, I assigned a CA83-VF coordinate system reference, so I'd like this forum's USA gurus to check it out.

Valued Mentor
parkr4st
Posts: 449
Registered: ‎03-24-2004
Message 5 of 6 (226 Views)

Re: Coordinate tracker cycling, digitizing not working

04-27-2012 03:10 AM in reply to: antoniovinci

setting google earth to utm (tools, options, 3d view tab, show lat,long)   get  11s as the geo coord sys.  you can pick a few points on GE at street intersections, building corners, etc. new dwg set to 11s, draw the points &  move, rotate and scale your line work to the points.  it fit pretty well. attached a sdf.  This is close, not precise, nice picture fit unworthy of close measurements type map. 

 

I would set the 11s in a new dwg and find a georeferenced photo to work over.  GPS points would be helpful also.

 

dave

 

 

 

 

Contributor
indianadarren
Posts: 22
Registered: ‎07-30-2011
Message 6 of 6 (202 Views)

Re: Coordinate tracker cycling, digitizing not working

04-30-2012 08:36 PM in reply to: parkr4st

I am having major troubles with the file you sent. Nothing measures out correctly, and the UTM numbers don't match Google Earth. Help!  Please see the attached document and tell me what you think.

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