}
void
-xrchart_draw_piechart (const struct chart_item *chart_item, cairo_t *cr,
+xrchart_draw_piechart (const struct chart *chart, cairo_t *cr,
struct xrchart_geometry *geom)
{
- const struct piechart *pie = to_piechart (chart_item);
+ const struct piechart *pie = to_piechart (chart);
double total_magnitude;
double left_label, right_label;
double centre_x, centre_y;
radius = MIN (5.0 / 12.0 * (geom->axis[SCALE_ORDINATE].data_max - geom->axis[SCALE_ORDINATE].data_min),
1.0 / 4.0 * (geom->axis[SCALE_ABSCISSA].data_max - geom->axis[SCALE_ORDINATE].data_min));
- radius = MIN (5.0 / 12.0 * (geom->axis[SCALE_ORDINATE].data_max - geom->axis[SCALE_ORDINATE].data_min),
- 1.0 / 4.0 * (geom->axis[SCALE_ABSCISSA].data_max - geom->axis[SCALE_ORDINATE].data_min));
-
- xrchart_write_title (cr, geom, "%s", chart_item_get_title (chart_item));
+ xrchart_write_title (cr, geom, "%s", chart_get_title (chart));
total_magnitude = 0.0;
for (i = 0; i < pie->n_slices; i++)
/* Draw the segments */
angle = 0.0;
- for (i = 0; i < pie->n_slices ; ++i )
+ for (i = 0; i < pie->n_slices ; ++i)
{
const double segment_angle =
pie->slices[i].magnitude / total_magnitude * 2 * M_PI ;
obscure them.
*/
angle = 0.0;
- for (i = 0; i < pie->n_slices ; ++i )
+ for (i = 0; i < pie->n_slices ; ++i)
{
const double segment_angle =
pie->slices[i].magnitude / total_magnitude * 2 * M_PI ;
const double label_y = centre_y +
radius * sin (angle + segment_angle/2.0);
- if ( label_x < centre_x )
+ if (label_x < centre_x)
{
cairo_move_to (cr, label_x, label_y);
cairo_line_to (cr, left_label, label_y);