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Coordinate Question in CAD
I received a .dwg from a client. It contains a centerline they need staked out. They also sent a .txt with control points. When I open the .dwg I see the centerline with stationing. I created a .crd, brought in the .txt control, and drew the points. The control points land in a positions that are consistent with a existing conditions survey. The control is State Plane.
I hoped I could create points using the centerline and stationing they sent over. When I snap on the cl to create a point the point that is created is something like N 4000 E 24000 nothing close to State Plane.
Why is this happening. Why did the control come in correctly if the line work is no where near it?
Any help would be great. I have Carlson 2015 intellicad.
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5 Replies
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When I snap on the points in the drawing and list properties the N and E are 4000 24000 but when I list points the cords are state plane.
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update drawing from coordinate file is what I would try
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UCS enter
W enter?
It may be on a user coordinate system.
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I would ask for great details like if combined scale state plane and ground or one of them also datum and geoid used some you might not need but it’s good to know if scaled from where?
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I’m probably not going to explain this very well, but you can set up a drawing to work in state plane coordinates but all the distances you would list in the drawing would be ground distances. If you use this system, you end up with two sets of coordinates, one set that matches the screen, and another set that you could upload into your data collector that would be state plane coordinates. In other words, every points has two sets of coordiantes.
That might be how this drawing is setup.
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