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Translation between Civil 3D and Google Earth

4 REPLIES 4
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Message 1 of 5
ckarako3
338 Views, 4 Replies

Translation between Civil 3D and Google Earth

Hi,

I have a shape file that is state plane coordinates with a NAD83 datum - but is referenced in a document (PDF) that gives me a lat/long in WGS84 datum. The shapefile lat/long is correct when opened in Google Earth. However, when I mapimport the shapefile into Civil 3D - it does not have the correct lat/long when I place a cogo point - though the graphics are the same. My questions are - why does this happen? And how do I get the lat/long to be correct in Civil 3D and Google Earth?

Thank you,

Christina

4 REPLIES 4
Message 2 of 5
antoniovinci
in reply to: ckarako3


ckarako3 wrote:
but is referenced in a document (PDF) that gives me a lat/long in WGS84 datum

Would you please elaborate the above point..?

Message 3 of 5
ckarako3
in reply to: antoniovinci

Sure. I have a PDF drawing that shows the same graphic - was not supplied the dwg file of the PDF file, but only the shape file. The PDF shows the lat/long and that it is WGS84. Does that help? We want to match the PDF drawing lat/long - but I do not think it is possible with the datum differences....

Message 4 of 5
enpope
in reply to: ckarako3


Christina;
Have you double checked the drawing setting in ToolSpace to make sure the Datum and Projection are set correctly for the drawing?
Message 5 of 5
antoniovinci
in reply to: ckarako3

I'd try to automatically transform the SP shape into Lat/Long_WGS84, madame.

 

1] open up an empty drawing

2] set the current CRS as LL84 (command _ADESETCRDSYS)

3] finally _MAPIMPORT the State Plane shape, by declaring its CRS as follows:

 

mapimport.gif

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