gegl r2736 - in trunk: . gegl/property-types

[ok svn gnome org]

Author: ok
Date: Wed Nov 12 23:17:21 2008
New Revision: 2736
URL: http://svn.gnome.org/viewvc/gegl?rev=2736&view=rev

Log:
* gegl/property-types/gegl-path.[ch]: (path_calc_values): use the same
approach as the stroker when computing the values. Added function to
compute closest point for coordinates.


Modified:
   trunk/ChangeLog
   trunk/gegl/property-types/gegl-path.c
   trunk/gegl/property-types/gegl-path.h

Modified: trunk/gegl/property-types/gegl-path.c
==============================================================================
--- trunk/gegl/property-types/gegl-path.c	(original)
+++ trunk/gegl/property-types/gegl-path.c	Wed Nov 12 23:17:21 2008
@@ -502,6 +502,11 @@
                     traveled_length += spacing;
                     i++;
                   }
+              if (!iter->next)
+                {
+                  xs[num_samples-1]=b.x;
+                  ys[num_samples-1]=b.y;
+                }
 
               need_to_travel += distance;
 
@@ -1510,13 +1515,13 @@
   gint   closest_val = 0;
   gdouble  *samples_x;
   gdouble  *samples_y;
-  n = length;
+  n = ceil(length);
   samples_x = g_malloc (sizeof (gdouble)* n);
   samples_y = g_malloc (sizeof (gdouble)* n);
 
   gegl_path_calc_values (path, n, samples_x, samples_y);
 
-  for (i=0;i<length;i++)
+  for (i=0;i<n;i++)
     {
       gdouble dist = (samples_x[i]-x) * (samples_x[i]-x)  +
                      (samples_y[i]-y) * (samples_y[i]-y);

Modified: trunk/gegl/property-types/gegl-path.h
==============================================================================
--- trunk/gegl/property-types/gegl-path.h	(original)
+++ trunk/gegl/property-types/gegl-path.h	Wed Nov 12 23:17:21 2008
@@ -122,11 +122,20 @@
                                                       guint        num_samples,
                                                       gdouble     *samples);
 
-gdouble              gegl_path_get_length     (GeglPath     *self);
+gdouble              gegl_path_get_length     (GeglPath     *path);
+gdouble              gegl_path_closest_point  (GeglPath     *path,
+                                               gdouble       x,
+                                               gdouble       y,
+                                               gdouble      *dx,
+                                               gdouble      *dy);
 void                 gegl_path_calc           (GeglPath     *path,
                                                gdouble       pos,
                                                gdouble      *dest_x,
                                                gdouble      *dest_y);
+void                 gegl_path_node           (GeglPath     *path,
+                                               gdouble       pos,
+                                               gdouble      *dest_x,
+                                               gdouble      *dest_y);
 void                 gegl_path_get_bounds     (GeglPath     *self,
                                                gdouble      *min_x,
                                                gdouble      *max_x,