plplot-general — PLplot user discussion group

Re: Re: [Plplot-general] (no subject)

[<so...@sy...>]

I meant implementing native jave APIs similar to plplot APIs rather than java binding.

-Ali

> 
> From: Andrew Ross <and...@us...>
> Date: 2004/11/08 Mon AM 10:24:17 EST
> To: so...@sy...
> CC: plp...@li...
> Subject: Re: [Plplot-general] (no subject)
> 
> On Mon, Nov 08, 2004 at 09:57:47AM -0500, so...@sy... wrote:
> > Hi,
> > 
> > I was wondering if anybody has considered implementing plplot apis into java (java2d or 3d). I am ready to dedicate some of my time for this. My C programming is very rusty. I need help from somebody who is very familiar with the plplot architecture and code. 
> > 
> 
> Ali,
> 
> Can you explain exactly what you mean by this? More or less all the plplot 
> common API is already available in Java provided you are using the
> latest versions of plplot. Which version are you using?
> 
> Regards
> 
> Andrew
> 

Re: [Plplot-general] Java / JVM Exception

[Alan W. I. <ir...@be...>]

On 2004-11-08 09:41-0500 so...@sy... wrote:

> When I open multiple plots using PLStream on Windows using Java, I get
funny behaviour. If I close couple of windows, I get the JVM crash with
following error messages.

> An unexpected exception has been detected in native code outside the VM.
> Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred at PC=0x1D6F34FF
[...]

Hi Ali:

Thanks for your report.

I suspect this is a memory management problem for the particular pattern of
plplot calls that you are using. Does the same error occur for the
postscript device?  If so, then it is probably an error in the core of
plplot that we might be able to reproduce for the Java/Linux platform.  If
you cannot reproduce the error for the postscript device, then it is
probably a memory management error in the special interactive device you use
on the windows platform, and you (or Arjen) might be able to reproduce it in
C for the windows platform thus substantially simplifying debugging efforts.

We need java code from you that generates this error.  That way, Arjen can
attempt to reproduce your error on the windows platform, and if the error
occurs for the postscript device, we should be able to reproduce it for
the Linux platform as well (and also help to debug it with valgrind).

Please make the requested example code as simple as possible, say ~10 plplot
calls or less (while still reproducing the error for your platform).

Alan
__________________________
Alan W. Irwin
email: ir...@be...
phone: 250-727-2902

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the Yorick front-end to PLplot (yplot.sf.net); the
Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
__________________________

Linux-powered Science
__________________________

Re: [Plplot-general] (no subject)

[Andrew R. <and...@us...>]

On Mon, Nov 08, 2004 at 09:57:47AM -0500, so...@sy... wrote:
> Hi,
> 
> I was wondering if anybody has considered implementing plplot apis into java (java2d or 3d). I am ready to dedicate some of my time for this. My C programming is very rusty. I need help from somebody who is very familiar with the plplot architecture and code. 
> 

Ali,

Can you explain exactly what you mean by this? More or less all the plplot 
common API is already available in Java provided you are using the
latest versions of plplot. Which version are you using?

Regards

Andrew

[Plplot-general] (no subject)

[<so...@sy...>]

Hi,

I was wondering if anybody has considered implementing plplot apis into java (java2d or 3d). I am ready to dedicate some of my time for this. My C programming is very rusty. I need help from somebody who is very familiar with the plplot architecture and code. 

Please comment.

Regards,

-Ali

[Plplot-general] Java / JVM Exception

[<so...@sy...>]

Hi,

When I open multiple plots using PLStream on Windows using Java, I get funny behaviour. If I close couple of windows, I get the JVM crash with following error messages.

An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred at PC=0x1D6F34FF
Function=[Unknown.]
Library=C:\Documents and Settings\MQWF\Local Settings\Temp\jplplot55579.dll

NOTE: We are unable to locate the function name symbol for the error
      just occurred. Please refer to release documentation for possible
      reason and solutions.


Current Java thread:
	at plplot.core.plplotjavacJNI.plend1(Native Method)
	at plplot.core.plplotjavac.plend1(plplotjavac.java:74)
	at plplot.core.PLStream.end1(PLStream.java:193)
	at org.jmatlab.toolbox.AbstractPLPlot.run(AbstractPLPlot.java:49)

Dynamic libraries:
0x00400000 - 0x00407000 	C:\Program Files\Java\j2re1.4.2_03\bin\javaw.exe
0x77F80000 - 0x77FFD000 	C:\WINNT\system32\ntdll.dll
0x7C2D0000 - 0x7C332000 	C:\WINNT\system32\ADVAPI32.dll
0x7C570000 - 0x7C623000 	C:\WINNT\system32\KERNEL32.DLL
0x77D30000 - 0x77DA1000 	C:\WINNT\system32\RPCRT4.DLL
0x77E10000 - 0x77E75000 	C:\WINNT\system32\USER32.dll
0x77F40000 - 0x77F7B000 	C:\WINNT\system32\GDI32.DLL
0x78000000 - 0x78046000 	C:\WINNT\system32\MSVCRT.dll
0x75E60000 - 0x75E7A000 	C:\WINNT\system32\IMM32.DLL
0x6CA60000 - 0x6CA68000 	C:\WINNT\system32\LPK.DLL
0x66650000 - 0x666A4000 	C:\WINNT\system32\USP10.dll
0x08000000 - 0x08138000 	C:\Program Files\Java\j2re1.4.2_03\bin\client\jvm.dll
0x77570000 - 0x775A0000 	C:\WINNT\system32\WINMM.dll
0x10000000 - 0x10007000 	C:\Program Files\Java\j2re1.4.2_03\bin\hpi.dll
0x007F0000 - 0x007FE000 	C:\Program Files\Java\j2re1.4.2_03\bin\verify.dll
0x00800000 - 0x00819000 	C:\Program Files\Java\j2re1.4.2_03\bin\java.dll
0x00820000 - 0x0082D000 	C:\Program Files\Java\j2re1.4.2_03\bin\zip.dll
0x18270000 - 0x1837F000 	C:\Program Files\Java\j2re1.4.2_03\bin\awt.dll
0x77800000 - 0x7781E000 	C:\WINNT\system32\WINSPOOL.DRV
0x76620000 - 0x76630000 	C:\WINNT\system32\MPR.DLL
0x77A50000 - 0x77B3F000 	C:\WINNT\system32\ole32.dll
0x18580000 - 0x185D0000 	C:\Program Files\Java\j2re1.4.2_03\bin\fontmanager.dll
0x51000000 - 0x51044000 	C:\WINNT\system32\ddraw.dll
0x728A0000 - 0x728A6000 	C:\WINNT\system32\DCIMAN32.dll
0x5C000000 - 0x5C0C7000 	C:\WINNT\system32\D3DIM700.DLL
0x60000000 - 0x60045000 	C:\WINNT\system32\MSCTF.dll
0x1D6C0000 - 0x1D70D000 	C:\Documents and Settings\MQWF\Local Settings\Temp\jplplot55579.dll
0x1D890000 - 0x1D897000 	C:\Program Files\Lotus\SameTime Client\autoaway.dll
0x77920000 - 0x77943000 	C:\WINNT\system32\imagehlp.dll
0x72A00000 - 0x72A2D000 	C:\WINNT\system32\DBGHELP.dll
0x690A0000 - 0x690AB000 	C:\WINNT\system32\PSAPI.DLL

Heap at VM Abort:
Heap
 def new generation   total 576K, used 259K [0x10010000, 0x100b0000, 0x104f0000)
  eden space 512K,  39% used [0x10010000, 0x100422b0, 0x10090000)
  from space 64K,  92% used [0x10090000, 0x1009ec38, 0x100a0000)
  to   space 64K,   0% used [0x100a0000, 0x100a0000, 0x100b0000)
 tenured generation   total 1408K, used 924K [0x104f0000, 0x10650000, 0x14010000)
   the space 1408K,  65% used [0x104f0000, 0x105d71f8, 0x105d7200, 0x10650000)
 compacting perm gen  total 7168K, used 6915K [0x14010000, 0x14710000, 0x18010000)
   the space 7168K,  96% used [0x14010000, 0x146d0d08, 0x146d0e00, 0x14710000)

Local Time = Mon Nov 08 09:22:23 2004
Elapsed Time = 33
#
# The exception above was detected in native code outside the VM
#
# Java VM: Java HotSpot(TM) Client VM (1.4.2_03-b02 mixed mode)
#
# An error report file has been saved as hs_err_pid2312.log.
# Please refer to the file for further information.

Re: [Plplot-general] New CVS snapshot available at http://plplot.sourceforge.net/cvs-tarball/

[Koen v. d. D. <kvd...@ea...>]

Hi,

A  recent update of the hdf5 package in fink fixed the problems I had 
when building plplot with octave. Thanks Jeff. The package now builds 
fine again on Mac OS X. I have not yet tested the examples of the 
recent snapshot, though.


- Koen.

Re: [Plplot-general] problems installing PDL with PLplot

[Rafael L. <rla...@us...>]

* Albert Kottke <al...@ac...> [2004-11-01 13:21]:

> I am running gentoo with perl and plplot installed.
> $ perl -v
> This is perl, v5.8.4 built for i686-linux
> 
> $plplot-config  --version
> 5.3.1
> 
> However, I can't get PDL to install through either Gentoo's emerge or 
> cpan install.  The bothersome thing is that I had plplot and PDL working 
> about a week and ahlaf ago, but I tried to install PDL with Slatec and I 
> haven't been able to get it to work since.  Here is the end of the 
> install log.
> 
> Any help would be great. Thanks.  Albert

Your problem seems to be related actually to PDL rather than to PLplot.
Could you please send your bug report to the PerlDL mailing list
(pe...@ja...)?

-- 
Rafael

[Plplot-general] problems installing PDL with PLplot

[Albert K. <al...@ac...>]

I am running gentoo with perl and plplot installed.
$ perl -v
This is perl, v5.8.4 built for i686-linux

$plplot-config  --version
5.3.1

However, I can't get PDL to install through either Gentoo's emerge or 
cpan install.  The bothersome thing is that I had plplot and PDL working 
about a week and ahlaf ago, but I tried to install PDL with Slatec and I 
haven't been able to get it to work since.  Here is the end of the 
install log.

Any help would be great. Thanks.  Albert

/usr/bin/perl5.8.4 -I/var/tmp/portage/PDL-2.4.0-r2/work/PDL-2.4.0 
"-MPDL::PP qw/PDL::Graphics::PLplot PDL::Graphics::PLplot P
ot/" plplot.pd
Can't locate PDL/PP.pm in @INC (@INC contains: 
/var/tmp/portage/PDL-2.4.0-r2/work/PDL-2.4.0 /etc/perl 
/usr/lib/perl5/site_per
.8.4/i686-linux /usr/lib/perl5/site_perl/5.8.4 /usr/lib/perl5/site_perl 
/usr/lib/perl5/vendor_perl/5.8.4/i686-linux /usr/lib/
l5/vendor_perl/5.8.4 /usr/lib/perl5/vendor_perl 
/usr/lib/perl5/5.8.4/i686-linux /usr/lib/perl5/5.8.4 
/usr/local/lib/site_perl
.
BEGIN failed--compilation aborted.
make[2]: *** [PLplot.pm] Error 2
make[2]: Leaving directory 
`/var/tmp/portage/PDL-2.4.0-r2/work/PDL-2.4.0/Graphics/PLplot'
make[1]: *** [subdirs] Error 2
make[1]: Leaving directory 
`/var/tmp/portage/PDL-2.4.0-r2/work/PDL-2.4.0/Graphics'
make: *** [subdirs] Error 2

!!! ERROR: dev-perl/PDL-2.4.0-r2 failed.
!!! Function perl-module_src_compile, Line 65, Exitcode 2
!!! compilation failed
!!! If you need support, post the topmost build error, NOT this status 
message.

Re: [Plplot-general] New CVS snapshot available at http://plplot.sourceforge.net/cvs-tarball/

[Koen v. d. D. <kvd...@ea...>]

On Oct 30, 2004, at 2:03 PM, Alan W. Irwin wrote:

> Important question:
>
> Is everything okay for your current Mac OS X development environment
> if you use ./configure --disable-octave ..... ?
>

No problems in that case.

Regarding Jeff's suggestion, there is no lhdf5 used in plplot (unless I 
missed it). So I suspect that the error is not plplot related, but hdf5 
and/or octave, both of which were recently updated in fink.

- Koen.

Re: [Plplot-general] New CVS snapshot available at http://plplot.sourceforge.net/cvs-tarball/

[Koen v. d. D. <kvd...@ea...>]

On Oct 30, 2004, at 2:03 PM, Alan W. Irwin wrote:

>
> In fact, looking at http://fink.sourceforge.net/pdb/package.php/octave 
> it
> appears the fink version of octave is out of date; it is version 2.1.53
> while the recommended version for a number of months now has been 
> 2.1.57,
> and in fact our high-level octave interface won't work (at least for 
> the
> most recent cvs snapshot tarball) unless you have version 2.1.57 or 
> higher
> installed.  (See the thread on plplot-devel that we have today).  Once 
> you
> get access to an up-to-date version of octave, the build problem might 
> go
> away as well.

Hi alan,

Actually, 2.1.57 is available through fink, see the right most column 
on the link you posted. I already got a reply from Jeff, and he thought 
it could be related to a new upstream version of hdf5 which uses the 
szip library. He also suggested to add -lsz after the -lhdf5 as a 
possible fix. I haven't had a change to try it out yet.


- Koen.

Re: [Plplot-general] New CVS snapshot available at http://plplot.sourceforge.net/cvs-tarball/

[Alan W. I. <ir...@be...>]

On 2004-10-30 01:51-0400 Koen van der Drift wrote:

>
> On Oct 30, 2004, at 12:18 AM, Alan W. Irwin wrote:
>
>> Could you please go back to a PLplot version that you have tried
>> successfully before (5.3.1 or a later cvs snapshot if you tried one of
>> those) to see whether you can still build that old version successfully?
>> That will help us pin down whether it is a PLplot change or a change of 
>> your
>> Mac OS X system that is the source of the current problem.
>> 
>
>
> Hi Alan,
>
> The same error occured indeed with the release version 5.3.1. Apple released 
> new dev tools (including an updated gcc) a while ago, and there have been 
> reports on the fink list that compilation of some programs are effected by 
> it. I wil look into this further and discuss it on the fink mailinglist. When 
> I know more I will let you know.
>

Thanks, Koen.  Looking at your error report again, I have noticed all the
problems concern the octave interface.  Just to remind you, for most
language interfaces to our PLplot library we let libtool figure out how to
do the linking, but octave is a special case where we use mkoctfile to do
this job and it seems quite possible to me that on the Mac OS X platform
mkoctfile has not yet been updated to be consistent with the new Mac OS X
development tool versions that are now installed on your system.

In fact, looking at http://fink.sourceforge.net/pdb/package.php/octave it
appears the fink version of octave is out of date; it is version 2.1.53
while the recommended version for a number of months now has been 2.1.57,
and in fact our high-level octave interface won't work (at least for the
most recent cvs snapshot tarball) unless you have version 2.1.57 or higher
installed.  (See the thread on plplot-devel that we have today).  Once you
get access to an up-to-date version of octave, the build problem might go
away as well.

You might want to write the fink package maintainer, Jeff Whitaker,
to see when he is going to update to 2.1.57.  Until he does that, you might
as well simply disable octave (see below) for Mac OS X.

Important question:

Is everything okay for your current Mac OS X development environment
if you use ./configure --disable-octave ..... ?

Alan
__________________________
Alan W. Irwin
email: ir...@be...
phone: 250-727-2902

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the Yorick front-end to PLplot (yplot.sf.net); the
Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
__________________________

Linux-powered Science
__________________________

Re: [Plplot-general] New CVS snapshot available at http://plplot.sourceforge.net/cvs-tarball/

[Koen v. d. D. <kvd...@ea...>]

On Oct 30, 2004, at 12:18 AM, Alan W. Irwin wrote:

> Could you please go back to a PLplot version that you have tried
> successfully before (5.3.1 or a later cvs snapshot if you tried one of
> those) to see whether you can still build that old version 
> successfully?
> That will help us pin down whether it is a PLplot change or a change 
> of your
> Mac OS X system that is the source of the current problem.
>


Hi Alan,

The same error occured indeed with the release version 5.3.1. Apple 
released new dev tools (including an updated gcc) a while ago, and 
there have been reports on the fink list that compilation of some 
programs are effected by it. I wil look into this further and discuss 
it on the fink mailinglist. When I know more I will let you know.

- Koen.

Re: [Plplot-general] New CVS snapshot available at http://plplot.sourceforge.net/cvs-tarball/

[Alan W. I. <ir...@be...>]

On 2004-10-29 19:41-0400 Koen van der Drift wrote:

> Hi,
>
> On Mac OS X it fails during the octave part of the compilation:

Hi Koen.  Your prolific Mac OS X testing of PLplot is much appreciated.

Could you please go back to a PLplot version that you have tried
successfully before (5.3.1 or a later cvs snapshot if you tried one of
those) to see whether you can still build that old version successfully?
That will help us pin down whether it is a PLplot change or a change of your
Mac OS X system that is the source of the current problem.

Alan
__________________________
Alan W. Irwin
email: ir...@be...
phone: 250-727-2902

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the Yorick front-end to PLplot (yplot.sf.net); the
Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
__________________________

Linux-powered Science
__________________________

Re: [Plplot-general] New CVS snapshot available at http://plplot.sourceforge.net/cvs-tarball/

[Koen v. d. D. <kvd...@ea...>]

Hi,

On Mac OS X it fails during the octave part of the compilation:

...
Making all in octave
Making all in PLplot
Making all in support
make[5]: Nothing to be done for `all'.
make[5]: Nothing to be done for `all-am'.
Making all in demos
make[4]: Nothing to be done for `all'.
Making all in misc
make[4]: Nothing to be done for `all'.
if gcc -DHAVE_CONFIG_H -I. -I. -I../.. -I../../include -I../../include   
  -I/sw/include  -Wno-long-double -MT massage.o -MD -MP -MF  
".deps/massage.Tpo" -c -o massage.o massage.c; \
then mv -f ".deps/massage.Tpo" ".deps/massage.Po"; else rm -f  
".deps/massage.Tpo"; exit 1; fi
/bin/sh ../../libtool --mode=link gcc  -Wno-long-double  -L/sw/lib -o  
massage  massage.o  -lm
mkdir .libs
gcc -Wno-long-double -o massage massage.o  -L/sw/lib -lm
perl  
/Volumes/MoreStuff/.src/plplot-5.3.1.cvs.20041028-1/plplot 
-5.3.1.cvs.20041028/bindings/octave/matwrap/matwrap -language octave -o  
plplot_octave.cc     -stub tmp_stub \
-cpp_ignore . -cpp_ignore plplot_octave_rej.h -cpp gcc \
-E -I. -C plplot_octave.h
mv -f plplot_octave.cc tmp_plplot_octave.cc
sed 's/ string / std::string /' tmp_plplot_octave.cc > plplot_octave.cc
LD_RUN_PATH=../../src/.libs:../../lib/csa/.libs:../../lib/nn/.libs  \
     mkoctfile -v -I. -I. plplot_octave.cc -L../../src/.libs -lplplotd  
`../../scripts/get-dependency-libs.sh ../../src/.libs/libplplotd.la`
g++ -c -I/sw/include -I/sw/include/octave-2.1.57  
-I/sw/include/octave-2.1.57/octave -I/sw/include -g -O2 -I. -I.  
plplot_octave.cc -o plplot_octave.o
g++ -bundle -bundle_loader /sw/bin/octave-2.1.57 -o plplot_octave.oct  
plplot_octave.o -L../../src/.libs -lplplotd -L/sw/lib  
-L/Volumes/MoreStuff/.src/plplot-5.3.1.cvs.20041028-1/plplot 
-5.3.1.cvs.20041028/lib/csa  
-L/Volumes/MoreStuff/.src/plplot-5.3.1.cvs.20041028-1/plplot 
-5.3.1.cvs.20041028/lib/csa/.libs -lcsirocsa  
-L/Volumes/MoreStuff/.src/plplot-5.3.1.cvs.20041028-1/plplot 
-5.3.1.cvs.20041028/lib/nn  
-L/Volumes/MoreStuff/.src/plplot-5.3.1.cvs.20041028-1/plplot 
-5.3.1.cvs.20041028/lib/nn/.libs -lcsironn -lqhull -ldl -lm  
-L/sw/lib/octave-2.1.57 -loctinterp -loctave -lcruft -L/sw/lib  
-framework vecLib -lfftw3 -lreadline -lncurses -lhdf5 -lz -lm -L/sw/lib  
-lg2c
ld: warning -prebind has no effect with -bundle
ld: warning multiple definitions of symbol _xerbla_
/sw/lib/octave-2.1.57/liboctinterp.dylib(single module) definition of  
_xerbla_
/sw/lib/octave-2.1.57/libcruft.dylib(single module) definition of  
_xerbla_
ld: warning multiple definitions of symbol _round
/sw/lib/octave-2.1.57/liboctave.dylib(single module) definition of  
_round
/usr/lib/libdl.dylib(rndint.o) definition of _round
/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/ 
vecLib.framework/Versions/A/libBLAS.dylib(single module) definition of  
_xerbla_
ld: Undefined symbols:
_SZ_BufftoBuffCompress
_SZ_BufftoBuffDecompress
make[4]: *** [plplot_octave.oct] Error 1
make[3]: *** [all-recursive] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2
### execution of make failed, exit code 2
Failed: compiling plplot-5.3.1.cvs.20041028-1 failed


Also in the configure phase I get:

checking for octave... yes
checking Octave version... dyld: octave Undefined symbols:
_SZ_BufftoBuffCompress
_SZ_BufftoBuffDecompress

checking Octave prefix... dyld: octave Undefined symbols:
_SZ_BufftoBuffCompress
_SZ_BufftoBuffDecompress

checking Octave m dir... dyld: octave Undefined symbols:
_SZ_BufftoBuffCompress
_SZ_BufftoBuffDecompress
/sw/
checking Octave oct dir... dyld: octave Undefined symbols:
_SZ_BufftoBuffCompress
_SZ_BufftoBuffDecompress


cheers,

- Koen.






On Oct 29, 2004, at 12:09 PM, Alan W. Irwin wrote:

> Yesterday, Rafael generated a snapshot of our CVS version of PLplot  
> and put
> it in the usual place, http://plplot.sourceforge.net/cvs-tarball/ .  I  
> have
> done some testing (build, install, and build and execution of all  
> installed
> examples) of this tarball on my Linux Debian testing distribution, and  
> there
> were no obvious problems.  I encourage PLplot users to give this
> experimental tarball a try.  Your feedback about your normal use of  
> this
> tarball will provide us with useful tests for a large variety of  
> different
> platforms that are not accessible to the developers and will make our  
> next
> official release that much better.
>
> Alan
> __________________________
> Alan W. Irwin
> email: ir...@be...
> phone: 250-727-2902
>
> Astronomical research affiliation with Department of Physics and  
> Astronomy,
> University of Victoria (astrowww.phys.uvic.ca).
>
> Programming affiliations with the FreeEOS equation-of-state  
> implementation
> for stellar interiors (freeeos.sf.net); PLplot scientific plotting  
> software
> package (plplot.org); the Yorick front-end to PLplot (yplot.sf.net);  
> the
> Loads of Linux Links project (loll.sf.net); and the Linux Brochure  
> Project
> (lbproject.sf.net).
> __________________________
>
> Linux-powered Science
> __________________________
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by:
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[Plplot-general] New CVS snapshot available at http://plplot.sourceforge.net/cvs-tarball/

[Alan W. I. <ir...@be...>]

Yesterday, Rafael generated a snapshot of our CVS version of PLplot and put
it in the usual place, http://plplot.sourceforge.net/cvs-tarball/ .  I have
done some testing (build, install, and build and execution of all installed
examples) of this tarball on my Linux Debian testing distribution, and there
were no obvious problems.  I encourage PLplot users to give this
experimental tarball a try.  Your feedback about your normal use of this
tarball will provide us with useful tests for a large variety of different
platforms that are not accessible to the developers and will make our next
official release that much better.

Alan
__________________________
Alan W. Irwin
email: ir...@be...
phone: 250-727-2902

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the Yorick front-end to PLplot (yplot.sf.net); the
Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
__________________________

Linux-powered Science
__________________________

RE: [Plplot-general] [Plplot] keeping item sizes during zooming

[Lehmann, E. {TR-I~Penzberg} <eck...@Ro...>]

Hi,

Thanks for your response.


> - preserve aspect ratio when zooming.  It may take some getting used
to, but for me it's the only way to go now.

That is not possible, unfortunately. For my application I often need to
plot the whole or a very big part of the y-axis against a little part of
the x-axis, because the relevant information can only be seen this way.

> - take control of the zooming process.  There are now hooks in the CVS
HEAD version of plwidget.tcl for the user to set a zoom handler.  Of
course this means you'll be responsible for replotting the data
yourself, but the cool thing is that you can then drop all sorts of
stuff "on top" of the zoomed data, like scales, labels, etc.  Also gets
around precision problems that appear when zooming to fine scales, due
to the 16-bit driver data representation.

That would be better... I was thinking about writing such a kind of user
zoom handler as well, but when there is already one to use/test/patch,
even better. How can I use the plwidget.tcl, is it possible to copy just
this file from the CVS HEAD into my plplotter5.3.1 extension directory
in Tcl/lib? Until now I was using plframe in a self defined Itk widget
for all plotting tasks, but it seems that this is not the right way?


Eckhard

Re: [Plplot-general] [Plplot] keeping item sizes during zooming

[<mj...@ga...>]

Lehmann, Eckhard {TR-I~Penzberg} writes:
 > Hi,
 > 
 > I am using the plplotter Tcl/Tk extension on windows. In the application
 > I write, the user should be able to zoom an xy plot of data. This works
 > so far, but I need to label some points in the plot. So I do that with
 > plptex..., maybe adjust the character size via plschr before. I cannot
 > preserve the aspect ratio during the zoom operation.
 > The problem is now, that whenever the user zooms some part of the plot,
 > the labels get zoomed as well - and look abolutely warped. This comes to
 > a stage where they are totally useless.
 > 
 > Is there a way to keep particular items - such as text labels - at
 > original size or resize them different from the rest of the plot? If not
 > - is it a big change to get this working? (When it isn't, I could do it
 > maybe...).

While I haven't used "the plplotter Tcl/Tk extension on windows", I have
plenty of experience with Tcl/TK & zooming under *ix.  So my suggestions
would be, in order of ease:

 - preserve aspect ratio when zooming.  It may take some getting used to, but
for me it's the only way to go now.

 - take control of the zooming process.  There are now hooks in the CVS HEAD
version of plwidget.tcl for the user to set a zoom handler.  Of course this
means you'll be responsible for replotting the data yourself, but the cool
thing is that you can then drop all sorts of stuff "on top" of the zoomed
data, like scales, labels, etc.  Also gets around precision problems that
appear when zooming to fine scales, due to the 16-bit driver data
representation.

-- 
Maurice LeBrun    mj...@ga...

[Plplot-general] [Plplot] keeping item sizes during zooming

[Lehmann, E. {TR-I~Penzberg} <eck...@Ro...>]

Hi,

I am using the plplotter Tcl/Tk extension on windows. In the application
I write, the user should be able to zoom an xy plot of data. This works
so far, but I need to label some points in the plot. So I do that with
plptex..., maybe adjust the character size via plschr before. I cannot
preserve the aspect ratio during the zoom operation.
The problem is now, that whenever the user zooms some part of the plot,
the labels get zoomed as well - and look abolutely warped. This comes to
a stage where they are totally useless.

Is there a way to keep particular items - such as text labels - at
original size or resize them different from the rest of the plot? If not
- is it a big change to get this working? (When it isn't, I could do it
maybe...).

Thanks in advance -=20

Eckhard

Re: [Plplot-general] vector field

[Arjen M. <arj...@wl...>]

Paulo Cortes wrote:
> 
> Hi
> 
> thanks for the reply I wasn't that explicit because I wasn't sure if the
> list was alive :). Here is little piece of my code.
> PMap(i,j).getDensity() is an angle (polarization angle). I get the shape
> that I should; except for a line like this:
> 
> |      *
> |    *
> |  *
> |*
> _ _ _ _
> 
> in front of the vector field. Thanks!!!
> 
> Paulo
> 
> ps. Is it politically correct to include an image as an attachment?
> so I can include my problem?
> 

Hm, I can not see anything obviously wrong with your code. 
Perhaps the data have something strange about them? Very large
values perhaps? (As internally the float coordinates are translated
to integer pixel coordinates, you could be suffering from integer 
overflows)

(If you want to send a single picture related to the problem at 
hand :), I guess it will not be considered rude)

Regards,

Arjen

Re: [Plplot-general] vector field

[Paulo C. <co...@as...>]

Hi

thanks for the reply I wasn't that explicit because I wasn't sure if the
list was alive :). Here is little piece of my code. 
PMap(i,j).getDensity() is an angle (polarization angle). I get the shape 
that I should; except for a line like this:

|      *
|    *
|  *
|*
_ _ _ _

in front of the vector field. Thanks!!!

Paulo

ps. Is it politically correct to include an image as an attachment?
so I can include my problem?


      nx=33;ny=33;nz=33;
      for (j = 0; j<ny; j++) {
         for (i = 0; i<nx; i++) {
             x = (i-nx/2)*dx;
             y = (j-ny/2)*dy;
             cgrid2.xg[i][j] = (i-nx/2);
             cgrid2.yg[i][j] = (j-ny/2);
             printf("y=%3.1f z=%3.1f Qmap=%3.8f Umap=%3.8f\n",y,z,
                     QMap(i,j).getDensity(),UMap(i,j).getDensity());
             fpol   = 
sqrt(QMap(i,j).getDensity()*QMap(i,j).getDensity()+
                        UMap(i,j).getDensity()*UMap(i,j).getDensity())/
                        IMap(i,j).getDensity();
             u[i][j]= fpol*cos(PMap(i,j).getDensity());
             v[i][j]= fpol*sin(PMap(i,j).getDensity());
                 pp = sqrt(u[i][j]*u[i][j] + v[i][j]*v[i][j]);
         }
     }


     pls->env(xmin, xmax, ymin, ymax, 0, 0);
     pls->lab("(x)", "(y)", "#frPLplot B field");
     pls->col0(2);
     pls->vect(u,v,nx,ny,1.0,plstream::tr2,(void *)&cgrid2);
     pls->col0(1);


Andrew Ross wrote:
> On Thu, Oct 14, 2004 at 04:20:53PM -0500, Paulo Cortes wrote:
> 
>>Hi
>>
>>I am using plplot to plot  a vector field, but
>>am having problems. I get the vector field, but I also
>>get a line that goes from the lower left corner to the
>>upper right corner of the plot, I can't get rid of it.
>>any ideas?
> 
> 
> Could it possibly be your array size is not quite right?  Otherwise it 
> is hard to tell from your description. Can so provide us with a simple 
> example code?
> 
> Andrew
> 
> 
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Re: [Plplot-general] vector field

[Andrew R. <and...@us...>]

On Thu, Oct 14, 2004 at 04:20:53PM -0500, Paulo Cortes wrote:
> Hi
> 
> I am using plplot to plot  a vector field, but
> am having problems. I get the vector field, but I also
> get a line that goes from the lower left corner to the
> upper right corner of the plot, I can't get rid of it.
> any ideas?

Could it possibly be your array size is not quite right?  Otherwise it 
is hard to tell from your description. Can so provide us with a simple 
example code?

Andrew

[Plplot-general] vector field

[Paulo C. <co...@as...>]

Hi

I am using plplot to plot  a vector field, but
am having problems. I get the vector field, but I also
get a line that goes from the lower left corner to the
upper right corner of the plot, I can't get rid of it.
any ideas?

Thanks!!!!!

Paulo

[Plplot-general] Legend

[Richard S. <jr...@ca...>]

Hi,

I'm looking for a bit of help. I'm plotting a graph with two series using 
plpoin. I'd like to add a legend to the graph (it's not entirely obvious 
which series is which).

The first thing I thought of using was plmtex. But I can't see how to get the 
relevant plpoin symbols drawn without resorting to setting explicit mapping 
between them and their ascii equivalents (some of the later ones don't even 
have equivalents)?

Any help would be appreciated.

Richard

[Plplot-general] dynamic creation of plots

[Joe G. <jge...@ll...>]

Is there any way to create and/or delete plots dynamically?  The 
applicaton I am writing needs to react to some external process, and can 
go from 4 to 12 plots.  Ideally I would like the base window to resize 
accordingly.

Thanks,
Joe

[Plplot-general] PLplot 5.3.1 avialble for Mac OS X

[Koen v. d. D. <kvd...@ea...>]

Hi,

PLplot 5.3.1 is now available through fink on Mac OS X. Compared to 
version 5.3.0, octave is now also supported, so expect some additional 
packages to be installed as well. If you experience any difficulties 
installing it, please report it to me and/or here and/or the fink 
mailing list.


enjoy,

- Koen.