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Incorrect ECW coordinates

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Message 1 of 2
Vasily_BC
478 Views, 1 Reply

Incorrect ECW coordinates

I've created same topic in Civil 3D, but I think here I'll an answer faster.

 

I have GeoPDF that I can't attach properly to drawing in Civil 3D.

So with Global Mapper I exported it to geo-referenced ECW.

I checked ECW in Global Mapper and ArcMap, everything just fine.

However when I did mapiinsert in Civil 3D, image appeared with shifted coordinates.

The original coordinate system of PDF and ECW is BC/Albers and coordinate grid is Lat/ Longs.

I've uploaded ECW, if somebody could try it.

https://docs.google.com/open?id=0B5LTHGXLBfyscnpfUHlEYm1tczQ

 

This is a picture from Civil 3D with Lat Long grid above the image.

Example.jpg

 

Thanks.

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Message 2 of 2
antoniovinci
in reply to: Vasily_BC

In my Map2006 CRS list, there is no BC Albers, so I created it by scratch basing on EPSG:3005 parameters (command _ADEDEFCRDSYS).

If I load your .ECW in this brand new CRS, and I draw a draft yellow line on the West coast, it fits exactly on Google Earth - check my .ZIP one, unpacking the content in the .ECW folder.


Now you should try to attach my DWG into a LL84 empty drawing (EPSG:4326) by means of _ADEDRAWINGS, then perform a draw query to check the conversion.

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