double x;
double y;
GString *label;
- /*the Bezier control point FROM HERE to the next point (P1)*/
- double bezier_from_x;
- double bezier_from_y;
- /*the Bezier control point from previous point TO HERE (P2)*/
- double bezier_to_x;
- double bezier_to_y;
+};
+
+/*Bezier line*/
+struct graph_line {
+ /*First point*/
+ double p0_x;
+ double p0_y;
+ /*Control pts*/
+ double p1_x;
+ double p1_y;
+ double p2_x;
+ double p2_y;
+ /*End point*/
+ double p3_x;
+ double p3_y;
};
typedef struct _Graph {
GObject parent_instance;
/*Array of n_points sets of x,y coords*/
GPtrArray *points;
- /*If you want to, this will override the lines between the points.*/
+ /*This draws all of the lines (generally between points)*/
GPtrArray *lines;
double maxx;
double minx;
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);
+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_ */