Re: [gdal-dev] OZI Raster Driver - new ozf4 file format support

2020-09-28 Thread jratike80
Hi, As far as I know the ozf format has never been open but fundamentally it is rather simple. Version 3 introduced encryption but it was also simple and reverse engineered soon https://www.globalmapperforum.com/uploads/attachments/3/1298.txt. Since that the author of Ozi Explorer made ozf4 versio

Re: [gdal-dev] Using GDALRPCTransform with a pre-loaded DEM

2020-09-28 Thread Frank Warmerdam
Julien, The least disruptive approach to this would be for you to store your DEM in a "memory dataset" and reference that. I've done this in the past when I had it in a numpy array by using the numpy driver. The "MEM" dataset can be used to reference approximately arbitrary in-memory arrays. Be

[gdal-dev] Using GDALRPCTransform with a pre-loaded DEM

2020-09-28 Thread Julien Osman
Dear GDAL community, I use the RPC transformer available in GDAL (GDALCreateRPCTransformer and GDALRPCTransform). To provide a DEM to the transformer, one needs to set the option "RPC_DEM" with the path to the DEM file. In my workflow, this is not very convenient because the DEM is already loaded

[gdal-dev] OZI Raster Driver - new ozf4 file format support

2020-09-28 Thread Ivars Grinbergs
Hi, Img2Ozf utility program since version 3.17 produces OZF4 format files. Since then, when I try to convert my calibrated map, I get an error message like "ERROR 4: `somefile.ozf4' not recognised as a supported file format.". Conversion of calibrated map ultimately results in the following comma