Hello,
I am trying to attach multiple raster images totaling around 1 GB of data. The rasters are aerial images that were taken from NearMaps. I am having trouble with how slowly the rasters are loading. It can take up to 15 minutes for a few rasters to load, and I have never gotten all of the rasters to load (50 images) at the same time.
Does anyone have any suggestions on how I can get these aerials to load faster?
Thanks in advance.
I'm using Microstation V8i with Geopak SS3. The rasters are in jpeg format, and are being attached through the Raster Manager with a sister file.
I apologize, the total of all of the pictures is about 1 GB, not per picture.
Julie S said:I apologize, the total of all of the pictures is about 1 GB
How much physical memory is installed on your computer? What operating system? What bit-ness (32-bit or 64-bit)?
Regards, Jon Summers LA Solutions
32 GB of RAM, 64-bit OS, Windows 7 Professional.
have you created a holding file and attached all the rasters to it then use this holding file as a reference file with the ref manager...
Another trick is to convert the jpgs to .TIFF ( georeferenced) via the raster manager then make new holding file and reattach the geo tiffs no sister files needed... I chose the no loss uncompressed option... seems to load faster for me..
another option from old school days still works well
create a map grid by attach one raster at a time, then trace its edges on a non print level and type in the name of the jpg as text inside the tile, turn off and proceed with next jpg untill all are mapped.. now you can use this as a grid or tile index and work out what jps to use or just have all turned off when attached as xref and use the raster manager to only turn on the tiles you actually need turn on...
one more option... look up package to join all the rasters together and let it join all the tiles together as one raster , this them loads faster for me than lots of little ones I dont get why but it does for me...
I use AU_ECW compressor
To compress one image file To compress several image files of the same size and shape into one file To add geo-referencing to an image file
no longer available.. web site gone, was free .. I have it installed but I dont have the install file any more...
Ok more digging around and found you can do it in GDAL but its not gui driven so hard to learn best next option is QGIS free gis can combine some geo ref rasters into one merged raster..
http://www.qgistutorials.com/en/docs/raster_mosaicing_and_clipping.html
Lorys
Started msnt work 1990 - Retired Nov 2022 ( oh boy am I old )
But was long time user V8iss10 (8.11.09.919) dabbler CE update 16 (10.16.00.80)
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