Cartesian Graphs: use circular marker instead of square one.

Also slightly smaller.  This I think is a bit more aesthetically
pleasing.

diff --git a/src/output/cairo-chart.c b/src/output/cairo-chart.c
index 88e70493d6585c0f2e8b84f66c760f76e1bdd9db..8886b2642d7cf7d0b665385918f0761cc8d2d050 100644 (file)
--- a/src/output/cairo-chart.c
+++ b/src/output/cairo-chart.c
@@ -486,7 +486,7 @@ xrchart_datum (cairo_t *cr, const struct xrchart_geometry *geom,
   double x_pos = (x - geom->axis[SCALE_ABSCISSA].min) * geom->axis[SCALE_ABSCISSA].scale + geom->axis[SCALE_ABSCISSA].data_min;
   double y_pos = (y - geom->axis[SCALE_ORDINATE].min) * geom->axis[SCALE_ORDINATE].scale + geom->axis[SCALE_ORDINATE].data_min;
 
-  xrchart_draw_marker (cr, x_pos, y_pos, XRMARKER_SQUARE, 15);
+  xrchart_draw_marker (cr, x_pos, y_pos, XRMARKER_CIRCLE, 10);
 }
 
 void