Re: imshow problem under OS X

[Pantxo]

Marius Schamschula-5 wrote
> Ben,
> 
> On Mar 8, 2015, at 7:13 PM, Ben Abbott <

> bpabbott@

> > wrote:
> 
>> On Mar 8, 2015, at 19:51, Marius Schamschula <

> lists@

> > wrote:
>> 
>>> Hi all,
>>> 
>>> I was just testing my latest build of tip (i.e. 4.0.0-rc1+ as of
>>> yesterday). I tried loading a gif image using imread, no problem here,
>>> except that GraphicsMagick is compiled with a quantum depth of 8 bits
>>> under MacPorts. I had build a local copy GraphicsMagick using gcc 4.9 to
>>> build 4.0.0-rc1, as the clang based build fails, using the same default
>>> strings as the MacPorts build.
>>> 
>>> The problem came when I tried to display the image, i.e.
>>> 
>>> imshow(I)
>>> 
>>> The gui immediately crashed. So I thought I should try the same
>>> procedure using the 3.8.2 gui build using MacPorts: same result. I then
>>> went into the 3.8.2 cli and found the following:
>>> 
>>> octave:22> imshow(I)
>>> 
>>> multiplot> et termoption dashed
>>>            ^
>>>            line 0: invalid command
>>> 
>>> Marius
>>> --
>>> Marius Schamschula
>> 
>> Marius,
>> 
>> If you can provide the options you used to configure, I can try on
>> Yosemite and report back.
>> 
>> Ben
> 
> 
> My current build uses:
> 
> ./configure \
> CC=/opt/local/bin/gcc-mp-4.9 \
> CFLAGS="-pipe -O2 -m64 -g -arch x86_64" \
> LDFLAGS="-L/usr/local/octave/lib -L/opt/local/lib" \
> CXX=/opt/local/bin/g++-mp-4.9 \
> CXXFLAGS="-pipe -O2 -m64 -arch x86_64" \
> CPPFLAGS="-D_THREAD_SAFE -I/usr/local/octave/include -I/opt/local/include"
> \
> FC="/opt/local/bin/gfortran-mp-4.9" \
> F77="/opt/local/bin/gfortran-mp-4.9" \
> FFLAGS="-pipe -O2 -m64 -arch x86_64" \
> CARBON_LIBS="-Wl,-framework -Wl,Carbon" \
> LIBS="-Wl,-framework -Wl,Carbon" \
> PKG_CONFIG_PATH=/usr/local/octave/lib/pkgconfig:$PKG_CONFIG_PATH \
> --disable-bounds-check \
> --disable-jit \
> --with-magick=GraphicsMagick \
> --with-lapack="-llapack -latlas -lgfortran" \
> --with-blas="-lcblas -lf77blas -latlas -lgfortran" \
> --prefix=/usr/local/octave/4.0.0-rc1 \
> --with-arpack \
> --disable-java \
> --enable-docs \
> --enable-gui \
> --with-opengl \
> --without-OSMesa \
> --with-framework-carbon \
> --without-x \
> --enable-link-all-dependencies \
> --with-arpack-includedir=/opt/local/include \
> --with-arpack-libdir=/opt/local/lib
> 
> but as I noted, I get the same error using the current MacPorts package
> (3.8.2). GraphicsMagick is under /usr/local/octave to keep it out of the
> way of MacPorts.
> 
> Marius
> --
> Marius Schamschula

Marius,

The imshow function doesn't make use of GraphicsMagick. It's just a
convenience function that creates an image object and plots it with image
specific axes configuration. Under Carlo's 3.8.2 binary the message you see
is due to gnuplot because OpenGL toolkits were voluntarily disabled as they
are known to crash Octave when the GUI is enabled on Mac. 
Are you able to do any kind of plotting or does "plot (1:10)" also crash
Octave?

Pantxo 



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