I was wondering what best way is to insert a raster image into Autodesk Civil 3D and is there a way to decrease the file size of a raster image with out changing or getting rid of its geolocation? I currently have an orthomosaic that is almost a 0.5gb in size and dramatically decreases the performance of my machine when I bring it in. The image is a tif. and has a very high resolution of 24000 by 16000 pixels but I honestly don't need all of that resolution. I think if i can decrease the file size of the tif. it would run great. What are your guys' ideas?
Thanks
Interesting idea. The RasterImageDef.Size will need to be changed along with the RasterImage.Orientation to accommodate the new size, of course the original image file will need to be renamed to a .BAK as it is rescaled and saved in the lower resolution.
Do you have Autodesk Raster Design, that should do it. If not there is a low cost add-on that should do it by the end of the day (in 64bit).
There is something called Lizzard Tech. Geoviewer, I think its free, that is helpfull in manipulating images, and I think you can change the resolution. It also lets you just take part of the image if you don't need all of it.
Those mosaics are a horse of a different color so to speak. However it looks like QGIS (mostly a GUI for GDAL) will do it.
- Layer > Add Layer > Add Raster Layer
- Raster > Conversion > Translate.
- Designate Output File (I used JPG)..
- Turn on OutSize and specify percentage.
It also writes an XML file so that Civil3D's MAPIINSERT command should put it in the right space.
