[Pspp-commits] [SCM] GNU PSPP branch, master, updated. v0.7.9-101-gfbed9cb

[John Darrington]

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- Log -----------------------------------------------------------------
commit fbed9cb6fdc9ca4d1c85a1b8138fedb0451a3aaa
Author: John Darrington <address@hidden>
Date:   Sat Mar 24 10:10:19 2012 +0100

    Avoid floating point precision problems in chart scale
    
    Some charts were being drawn with a tick mark at positions
    close to but not exactly zero Eg: 2.187433298e-27
    This change avoids this problem.

commit 084a3ed2450295a9f1ebfd30b9a93f1e3dac7bf1
Author: John Darrington <address@hidden>
Date:   Sat Mar 24 09:53:49 2012 +0100

    cairo-chart.c: new struct xrchart_axis
    
    This allows a bit of refactoring.

commit 9c37a8c675de65552001052edf159d6bdfbf18ac
Author: John Darrington <address@hidden>
Date:   Sat Mar 24 07:42:51 2012 +0100

    Histograms:  Ensure that the bins are aligned to an odd number of half bin 
widths
    
    This has the benefit that the centres of the bins are aligned to integer 
multiples
    of bin widths, and thus the labels are shorter.  For example, instead of 
labels
    -1.5 -0.5 0.5 1.5 2.5 we get -2 -1 0 1 2 which is more aesthetically 
pleasing.

-----------------------------------------------------------------------

Summary of changes:
 src/math/histogram.c                |   37 ++++++++++---
 src/output/cairo-chart.c            |  105 +++++++++++++++++------------------
 src/output/cairo-chart.h            |   29 +++++-----
 src/output/charts/boxplot-cairo.c   |   42 +++++++-------
 src/output/charts/piechart-cairo.c  |   16 +++---
 src/output/charts/plot-hist-cairo.c |   30 +++++-----
 6 files changed, 140 insertions(+), 119 deletions(-)


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