* Added bezier routines.

[scdataviz] / graph.h

diff --git a/graph.h b/graph.h
index 3930845..68aa97b 100644 (file)
--- a/graph.h
+++ b/graph.h
@@ -81,5 +81,11 @@ int graph_add_point(Graph* graph, double x, double y, const GString *label);
 int graph_add_graph_point(Graph* graph, struct graph_point *pt);
 int graph_add_line(Graph* graph, double p0_x, double p0_y, double p1_x, double p1_y, double p2_x, double p2_y, double p3_x, double p3_y);
 void graph_add_linear_connectors(Graph* graph);
+/*Provide x0, x3; x1 and x2 will be set*/
+void graph_bezier_linear_to_cubic(double x0, double x3, double *x1, double *x2);
+/*Provide x0, x1, x2.  x1 and x2 will be set appropriately.*/
+void graph_bezier_qudratic_to_cubic(double x0, double x3, double *x1, double *x2);
+
+
 
 #endif             /* !GRAPHCLASS_H_ */