Hi! I am new in this, so maybe I missed something, but is it possible to be something wrong with the new ( 3.0.0 (31.03.2016 8:00)) version of SNAP?
I tried to learn the basics from this site, but I had some problem also with the first lessons… I tried to calibrate my image, but it crashed 3 times… I tried this on windows 8.1, 64 bit, intel i7, with 8 gb ddr3 ram, so I think this is ok for this program, but, I don’t know how can I resolve this.
Many times crashed with message “Cannot construct DataBuffer”, type:“Operator Exception”; Once crashed with some java stack error… ; Once crashed the all program and I saw the created file, and it wasn’t ok… I had just some rows from the created image… Once completed, but the created file also had the same problems…
“Cannot construct DataBuffer” is a quiet common problem when processing S1 data (e.g. Error when calibrating Sentinel 1 data “cannot construct data buffer”).
You can try the performance tool. You find it at Tools / Options in the menu.
Choose one of the operators (Calibration is probably not a bad choice) and let it compute the best settings.
If it takes so long then there is probably one of the configurations which is not performing well.
Another options is to enable the cache for Sentinel-1 reader. You can find it in the S1TBX tab in the Options dialog.
Maybe @lveci can say something on how to find the best configuration.
I can’t get in touch with @lveci, I wrote a mail too, but nothing.
But I also tried many options in the calibration menu what You said. And I make once probably but, after then I tried again from radiometric calibrate and the error was the same…
Could you help me, what can I do then, or how to contact with @lveci, or any idea, how can I start if this not work?
Processing Sentinel-1 products can use a lot of memory because the Tiff reader we use puts everything into memory. If you have a number of swaths and dual polarizations this can be big somethings. If you are working with S1 SLC products, you can use the TOPS Split operator to select a single subswath and polarization. You can also use the file caching in Tools -> Options and S1TBX tab.
Also, please check that you don’t have a lot of other applications using your memory as well.