Hi Antonio,
I have been reported that this problem should be solved with the latest GDAL
version in the development
branch.
Corado, another one using ECW, told me an alternative solution:
---8<---------------------------------------
Hi Oliver,
I have found a solution. I was still using version 3.3 of the ECW
library since it is the last release for which source files are
available: it compiles, it links,... but it doesn't work.
Thus, I have downloaded the latest version of the ECW library (Release
5.0.1). Unfortunately, only binaries are available and the installer
only extracts the files (it does not install them). Thus, I have
manually installed the library according to the following procedure
$ cd /usr/local
$ sudo cp -r /(path to ecwjp2_sdk)/etc/ ./
$ sudo cp -r /(path to ecwjp2_sdk)/include/ ./
$ sudo cp -r /(path to ecwjp2_sdk)/lib/ ./
$ cd ./lib
$ sudo ln -s ./x64/release/libNCSEcw.so.5.0.1 libNCSEcw.so
or, depending on your architecture,
$ sudo ln -s ./x86/release/libNCSEcw.so.5.0.1 libNCSEcw.so
$ sudo ldconfig
Then, I downloaded and compiled gdal-1.10.0 by following the usual procedure
cd /(path to gdal)
./configure --with-ecw=/usr/local
make
sudo make install (or checkinstall)
Finally, I compiled QLGT and... I'm newly able to open ECW files!!
I hope it can be useful for someone else.
Corrado
--->8---------------------------------------
HTH
Oliver
> Hi,
> I've compiled GDAL 1.9.2 with ecw support on ubuntu 12.04.
>
> $ gdalinfo --formats|grep ECW
> ECW (rw): ERMapper Compressed Wavelets
> JP2ECW (rw+): ERMapper JPEG2000
>
>
>
> Then I've compiled QLGT 1.7.1, but when I try to open an ecw map, it
> crashes:
>
> "Warning: Qt has caught an exception thrown from an event handler. Throwing
> exceptions from an event handler is not supported in Qt. You must
> reimplement QApplication::notify() and catch all exceptions there.
>
> terminate called after throwing an instance of 'std::length_error'
> what(): basic_string::_S_create
> Annullato (core dump creato)"
>
>
> What can I do?
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