* Bowing params are working better.

[scdataviz] / graph.h

diff --git a/graph.h b/graph.h
index 3930845..cbdfe5d 100644 (file)
--- a/graph.h
+++ b/graph.h
@@ -52,6 +52,14 @@ struct graph_line {
   double p3_y;
 };
 
+struct graph_axis {
+  double start;
+  double step;
+  int xminor;
+  int subminor;
+  GString title;
+};
+
 typedef struct _Graph {
   GObject parent_instance;
   /*Array of n_points sets of x,y coords*/
@@ -63,6 +71,8 @@ typedef struct _Graph {
   double maxy;
   double miny;
   graph_symbol symbol;
+  struct graph_axis *xaxis;
+  struct graph_axis *yaxis;
 } Graph;
 
 typedef struct _GraphClass {
@@ -80,6 +90,13 @@ Graph *graph_new(void);
 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);
+int graph_add_graph_line(Graph* graph, struct graph_line *l);
 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_quadratic_to_cubic(double x0, double x3, double *x1, double *x2);
+
+
 
 #endif             /* !GRAPHCLASS_H_ */