[GIS] How to open a georeferenced JPG file in OCAD

file formatsgeoreferencingocad

I have a georeferenced .jpg file with the .jgw file containing the coordinates. I want to use it as a background in OCAD. But when I open the file as a background, the jpg file is not georeferenced to any coordinates. How can I open it and reference it to the right coordinates in OCAD?

I have done the same thing with a georeferenced .tif and a .tfw file containing the coordinates.

Best Answer

Map>Scale and Coordinates System>Real World Coordinates

Video (Flash)

http://www.ocad.com/howtos/113_georeference_a_map_ocad10.htm

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[GIS] How to transform a georeferenced JPG to a georeferenced TIF

You could use gdaltranslate.

gdal_translate -of GTiff  myFile.jpg myFile.tif

This will actually give you a geoTiff, not a tiff with a world file.

You could also try renaming your 'TGW' file to a 'TFW'.

[GIS] Why are JPG files invisible in Georeferencer

When you save your JPEG in GIMP, expand the 'Advanced Options' when the 'Export as JPEG' dialog box comes up. Un-check the 'Progressive' box and then click 'Export'. Your JPEG is then readable in QGIS.

"Progressive" changes the encoding to display the image at increasingly higher quality levels until the image is fully loaded. QGIS is expecting standard encoding. Progressive encoding appears to be on by default in GIMP (at least in GIMP 2 - I can't remember for earlier versions).

Best Answer

Related Solutions

[GIS] How to transform a georeferenced JPG to a georeferenced TIF

[GIS] Why are JPG files invisible in Georeferencer

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