Point Cloud Lat. & Long.

[Anonymous]

Is there any way to get the Lat. & Long. from a point cloud that an Las File has been used to create a surface, so that I can line up the Bing image correctly. I have no defined object in the surface file only contours and of course the cloud points.

When I originally download all the different files I was hoping to find a shape/breakline file of sorts that would show the existing building, roads ...ect.

I think the info may be in a file that has an *.IMG extension and properties says that it is a "Disk Image File". How do I get this file to work?

2015 In Use

Dave Z.

[AllenJessup]

Use this file. I don't think the path should be any different for you. If it is do a search for the .bat file.

C:\Program Files (x86)\FWTools2.4.7\openev.bat or C:\Program Files (x86)\FWTools2.4.7\bin\openevw.bat

For more fun and giggles. Right click on the file and select Edit. This is how everything used to happen on a computer before windows. I put a link to that file on my desktop.

[AllenJessup]

When using gdal_translate you may need to use the -of switch. See:http://www.gdal.org/gdal_translate.html

[Pointdump]

Allen,

Thank you. I finally fumbled around, found and stuck Open EV on my desktop. I opened the "img" file with Open EV and saved it as a gTiff. Then I could bring it into C3D and create a 25,000,000-point surface.

I'll keep plugging away with Microdem. It seems to be GUI, but at this point I find it completely unfathomable.

QGIS is easy. It accepts ".img" files and will re-project them with GDAL-Warp into a useable GeoTiff for C3D.

Dave

[AllenJessup]

---

Pointdump wrote:

QGIS is easy. It accepts ".img" files and will re-project them with GDAL-Warp into a useable GeoTiff for C3D.

---

Dave,

Sounds like something I should check out. But our IT doesn't like a lot of programs they don't approve installed. They overlook some things I do because I'm the CAD Manager. But I don't like to push it too far.

Allen