Stitch together GEOMAP Bing imagery spanning coordinate systems?

[akstrum]

I'm working in C3D 2015 on a >300-mile pipeline project which spans from one coordinate system into the next. I need to stitch together GEOMAP captures for a key map sheet.

The Bing imagery looks great in both coordinate systems. I can't figure out how to re-project or reference or query one coordinate system's GEOMAP image into the other coordinate system's dwg file is such a way that the imagery appears contiguous.

Ideas?

[Anonymous]

You can use raster design if you have it available to you.... check out the following threads

https://forums.autodesk.com/t5/autocad-raster-design-general/merge-images/td-p/1773514

https://www.youtube.com/watch?v=dx7hw4VzQxs

Hope that helps

kudos are always welcome

[akstrum]

Thanks for the response.

I do have raster design, so that's a plus.

What I've not been able to do is place GEOMAP image captures from two different coordinate systems side by side in a dwg in order to perform an image merge. The image capture itself updates when I change the coordinate system of a drawing . . . so how can I capture two coordinate systems in one drawing?

I think what I need is a raster export with world file from CoordinateSystemA.dwg which I could MAPIINSERT into CoordinateSystemB.dwg. I have not been able to generate a world file for a GEOMAP image . . . and--beyond that--I'm not sure how the world file would place the raster in a different coordinate system. Of course, I could ALIGN the imported image and bully it into place . . .

[Anonymous]

This might be helpful...it discusses how to create a world file manually

http://www.cadtutor.net/forum/showthread.php?62013-export-a-clipped-georeferenced-image

Unless you have GIS there's no 'easy' workaround that I'm aware of.....

As an alternate suggestion, there should be free geo-referenced images available through USGS or other agencies (if you're in the USA) that may have a continuous geo-referenced image

Hmmmm...

[Pointdump · Accepted solution]

J,

You could create a custom map projection that includes the entire project: Transverse Mercator for north-south, Lambert for east-west, or Oblique for any other direction. Drawings from both coordinate systems can easily be brought into the new coordinate system.

Dave

[antoniovinci]

I fear you won't achieve your goal in a Cad environment, sir.

You need some Gis software, e.g. the free Qgis.

[Pointdump]

J,

Another possibility, from the Apps Store:
https://apps.autodesk.com/CIV3D/en/Detail/Index?id=appstore.exchange.autodesk.com%3aplexearth3%3aen

Dave

[akstrum]

Excellent! I created a custom coordinate system from an existing coordinate system, and extended the westerly longitude parameter to suit my needs. The GEOMAP image then covered the two standard coordinate systems; the BING imagery slipped right into place.

The solution (thanks PD!) is very quick and easy.

Thanks a million for the crew's many responses and ideas!