-/* PSPP - draws pie charts of sample statistics
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 2004, 2009 Free Software Foundation, Inc.
-Copyright (C) 2004 Free Software Foundation, Inc.
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
-This program is free software; you can redistribute it and/or
-modify it under the terms of the GNU General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-This program is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
int i;
double total_magnetude=0;
- struct chart *ch = chart_create();
+ struct chart *ch;
- const double left_label = ch->data_left +
- (ch->data_right - ch->data_left)/10.0;
+ double left_label;
+ double right_label;
- const double right_label = ch->data_right -
- (ch->data_right - ch->data_left)/10.0;
+ double centre_x;
+ double centre_y;
- const double centre_x = (ch->data_right + ch->data_left ) / 2.0 ;
- const double centre_y = (ch->data_top + ch->data_bottom ) / 2.0 ;
+ double radius;
- const double radius = MIN(
- 5.0 / 12.0 * (ch->data_top - ch->data_bottom),
- 1.0 / 4.0 * (ch->data_right - ch->data_left)
- );
+ ch = chart_create ();
+ if (ch == NULL)
+ return;
+ left_label = ch->data_left + (ch->data_right - ch->data_left)/10.0;
+ right_label = ch->data_right - (ch->data_right - ch->data_left)/10.0;
+ centre_x = (ch->data_right + ch->data_left ) / 2.0;
+ centre_y = (ch->data_top + ch->data_bottom ) / 2.0;
+ radius = MIN (5.0 / 12.0 * (ch->data_top - ch->data_bottom),
+ 1.0 / 4.0 * (ch->data_right - ch->data_left));
- chart_write_title(ch, title);
+ chart_write_title(ch, "%s", title);
for (i = 0 ; i < n_slices ; ++i )
total_magnetude += slices[i].magnetude;
draw_segment(ch,
centre_x, centre_y, radius,
angle, segment_angle,
- data_colour[i]);
+ data_colour[i % N_CHART_COLOURS]);
/* Now add the labels */
if ( label_x < centre_x )
pl_line_r(ch->lp, label_x, label_y,
left_label, label_y );
pl_moverel_r(ch->lp,0,5);
- pl_alabel_r(ch->lp,0,0,slices[i].label);
+ pl_alabel_r (ch->lp, 0, 0, ds_cstr (&slices[i].label));
}
else
{
right_label, label_y
);
pl_moverel_r(ch->lp,0,5);
- pl_alabel_r(ch->lp,'r',0,slices[i].label);
+ pl_alabel_r (ch->lp, 'r', 0, ds_cstr (&slices[i].label));
}
angle += segment_angle;