[Pkg-octave-devel] Bug#492038: octave3.0: pcolor does not show all data
Francesco Potorti`
Potorti at isti.cnr.it
Fri Jul 25 15:33:11 UTC 2008
package octave3.0
tags 492038 upstream
stop
Dear Octave maintainers,
The bug report reproduced below has been filed against the Debian
package and regards the upstream sources. The report is recorded at
http://bugs.debian.org/492038
Thanks,
Package: octave3.0
Version: 1:3.0.1-4
Severity: normal
If you try
pcolor(1:3,1:3,reshape(1:9,3,3))
you see that it only displays four colours. In general, pcolor does not
display anything for the last row and column. Those data are ignored as
far as plotting is concerned. However, they are taken into account as
far as axis limits are concerned, both for ticks and for colors. I
don't know if it is done for compatibility with Matlab. Anyway, this
function corrects the problem when pcolor is called with vector X and Y:
function mypcolor(x,y,z)
x0=3*x(1)-x(2);xe=3*x(end)-x(end-1);xm=x(1:end-1)+x(2:end);x=[x0;xm(:);xe]/2;
y0=3*y(1)-y(2);ye=3*y(end)-y(end-1);ym=y(1:end-1)+y(2:end);y=[y0;ym(:);ye]/2;
z=[z,z(:,end);z(end,:),z(end,end)];
pcolor(x,y,z);
endfunction
-- System Information:
Debian Release: lenny/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'testing-proposed-updates')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.25-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=it_IT at euro (charmap=ANSI_X3.4-1968) (ignored: LC_ALL set to C)
Shell: /bin/sh linked to /bin/bash
Versions of packages octave3.0 depends on:
ii libatlas3gf-base [libl 3.6.0-21.5 Automatically Tuned Linear Algebra
ii libblas3gf [libblas.so 1.2-1.6 Basic Linear Algebra Subroutines 3
ii libc6 2.7-10 GNU C Library: Shared libraries
ii libcurl3-gnutls 7.18.2-5 Multi-protocol file transfer libra
ii libfftw3-3 3.1.2-3.1 library for computing Fast Fourier
ii libgcc1 1:4.3.1-2 GCC support library
ii libgfortran3 4.3.1-2 Runtime library for GNU Fortran ap
ii libglpk0 4.28-3 linear programming kit with intege
ii libhdf5-serial-1.6.6-0 1.6.6-4 Hierarchical Data Format 5 (HDF5)
ii liblapack3gf [liblapac 3.1.1-0.5 library of linear algebra routines
ii libncurses5 5.6+20080308-1 Shared libraries for terminal hand
ii libpcre3 7.4-1+lenny2 Perl 5 Compatible Regular Expressi
ii libqhull5 2003.1-9 calculate convex hulls and related
ii libreadline5 5.2-3 GNU readline and history libraries
ii libstdc++6 4.3.1-2 The GNU Standard C++ Library v3
ii libsuitesparse-3.1.0 3.1.0-3 collection of libraries for comput
ii texinfo 4.11.dfsg.1-4 Documentation system for on-line i
ii zlib1g 1:1.2.3.3.dfsg-12 compression library - runtime
Versions of packages octave3.0 recommends:
ii gnuplot 4.2.2-1.1 A command-line driven interactive
ii libatlas3gf-base 3.6.0-21.5 Automatically Tuned Linear Algebra
-- no debconf information
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