Skip to main content
  • EN

This is what I am trying to accomplish in FME:

A. Read a .jpg file, clip collars, add GCPs.

B. Feed that into a GeoTiff reader to convert to GeoTiff.

C. Feed the GeoTiff into a CADRG writer (requires GeoTiff for input).

 

I've done this with some (limited) success using "reader to GeoTiff writer",

then "GeoTiff reader to CADRG writer". (see my previous post on how the resultant GeoTiff raster was flipped horizontally)

 

As the GeoTiff is an intermediate format, how can I streamline this flow?

 

Thanks

bill

 

 

You can use a FeatureWriter transformer to write a GeoTiff and then immediately a FeatureReader to read it back in and send it to the CADRG writer.

 

I haven't used CADRG myself but this does sound like an inefficient and non-FME way of doing it. From the documentation: "The CADRG writer accepts only rasters with a Red8 band, a Green8 band, and a Blue8 band.". This would indicate a JPG in RGB24 should work, have you tried a RasterInterpretationCoercer after processing the JPG so you can skip the whole GeoTiff detour?

You can use a FeatureWriter transformer to write a GeoTiff and then immediately a FeatureReader to read it back in and send it to the CADRG writer.

 

I haven't used CADRG myself but this does sound like an inefficient and non-FME way of doing it. From the documentation: "The CADRG writer accepts only rasters with a Red8 band, a Green8 band, and a Blue8 band.". This would indicate a JPG in RGB24 should work, have you tried a RasterInterpretationCoercer after processing the JPG so you can skip the whole GeoTiff detour?

redgeographics, thank you very much for this recommendation. I'll be giving it a try later today. Using the CADRG format because we have a large database of CADRG imagery that meshes with the Falconview viewer. In the process of filling in some of the missing maps.

Thanks again,

bill

You can use a FeatureWriter transformer to write a GeoTiff and then immediately a FeatureReader to read it back in and send it to the CADRG writer.

 

I haven't used CADRG myself but this does sound like an inefficient and non-FME way of doing it. From the documentation: "The CADRG writer accepts only rasters with a Red8 band, a Green8 band, and a Blue8 band.". This would indicate a JPG in RGB24 should work, have you tried a RasterInterpretationCoercer after processing the JPG so you can skip the whole GeoTiff detour?

Thanks, that saved a few steps, cleaner work flow, and worked well.

appreciated!

bill

Reply


Community Stats

30,366
Posts
115,373
Replies
38,151
Members
Terms & ConditionsCookie settings
A product of
Safe Software respectfully acknowledges that we live, learn and work on the traditional and unceded territories of the Kwantlen, Katzie, and Semiahmoo First Nations.