[gradsusr] Grads 2.2.0 gxprint libpng error

[Jennifer M Adams]

Hi, Marco — 
Did you see this post http://gradsusr.org/pipermail/gradsusr/2017-December/041377.html ?

What is the output from 
> ldd /usr/util/grads/lib/libgxpCairo.so | grep png

Also, what size image are you trying to create? 

#     define PNG_USER_HEIGHT_MAX 1000000
#     define PNG_USER_WIDTH_MAX 1000000

—Jennifer

> On Mar 15, 2018, at 11:46 AM, Marco Biordi - PODOS3D <marcobiordi at podos3d.sm> wrote:
> 
> Hello users,
> 
> when I run grads and make an hardcopy with the command gxprint I get an empty PNG image and GrADS return the following error
> 
> 
> libpng warning: Image width exceeds user limit in IHDR
> libpng warning: Image height exceeds user limit in IHDR
> gd-png:  fatal libpng error: Invalid IHDR data
> 
> 
> I run GrADS 2.2.0, pre-built grads-2.2.0-bin-rhel6.4-x86_64.tar.gz.
> 
> My system (Centos-6.5-x86_64) is still on libpng-1.2.49; when I run grads, it fails with error "GX Package Error: dlopen failed to get a handle on gxprint plug-in named "Cairo", "libpng15.so.15: cannot open shared object file: No such file or directory".
> 
> So I have build myself libpng-1.15.12 and all commands except gxprint now seem to work.
> 
> 
> Before to run grads I do commands:
> 
> > setenv LD_LIBRARY_PATH /usr/util/grads/libpng-1.5.12/lib
> 
> > setenv GADDIR /usr/util/grads/data
> 
> > setenv GAUDPT /usr/util/grads/udpt [ maybe redundant ]
> 
> File udpt contains these lines:
> 
> # Type     Name     Full path to shared object file
> # ----     ----     -------------------------------
> gxdisplay  Cairo    /usr/util/grads/lib/libgxdCairo.so
> gxdisplay  X11      /usr/util/grads/lib/libgxdX11.so
> gxdisplay  gxdummy  /usr/util/grads/lib/libgxdummy.so
> *
> gxprint    Cairo    /usr/util/grads/lib/libgxpCairo.so
> gxprint    GD       /usr/util/grads/lib/libgxpGD.so
> gxprint    gxdummy  /usr/util/grads/lib/libgxdummy.so
> 
> 
> Folder /usr/util/grads/lib contains these files:
> 
> /usr/wrfems/util/grads/lib/libgxdCairo.la
> /usr/wrfems/util/grads/lib/libgxdCairo.so
> /usr/wrfems/util/grads/lib/libgxdCairo.so.0
> /usr/wrfems/util/grads/lib/libgxdCairo.so.0.0.0
> /usr/wrfems/util/grads/lib/libgxdummy.la
> /usr/wrfems/util/grads/lib/libgxdummy.so
> /usr/wrfems/util/grads/lib/libgxdummy.so.0
> /usr/wrfems/util/grads/lib/libgxdummy.so.0.0.0
> /usr/wrfems/util/grads/lib/libgxdX11.la
> /usr/wrfems/util/grads/lib/libgxdX11.so
> /usr/wrfems/util/grads/lib/libgxdX11.so.0
> /usr/wrfems/util/grads/lib/libgxdX11.so.0.0.0
> /usr/wrfems/util/grads/lib/libgxpCairo.la
> /usr/wrfems/util/grads/lib/libgxpCairo.so
> /usr/wrfems/util/grads/lib/libgxpCairo.so.0
> /usr/wrfems/util/grads/lib/libgxpCairo.so.0.0.0
> /usr/wrfems/util/grads/lib/libgxpGD.la
> /usr/wrfems/util/grads/lib/libgxpGD.so
> /usr/wrfems/util/grads/lib/libgxpGD.so.0
> /usr/wrfems/util/grads/lib/libgxpGD.so.0.0.0
> 
> Please can anybody help?
> 
> Thanks in advance
> 
> Marco
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--
Jennifer Miletta Adams
Center for Ocean-Land-Atmosphere Studies (COLA)
George Mason University