draw arcs

main.h

@@ -35,7 +35,10 @@ typedef struct {
 	int show_boxes2;
 	int show_attractors;
 	int show_reflectors;
+	int show_rotated_reflectors;
 	int show_limit;
+	int show_dual_limit;
+	int show_text;
 	int use_rotation_basis;
 	int limit_with_lines;
 	int use_repelling;
@@ -46,12 +49,17 @@ typedef struct {
 
 	// computed stuff
 	double *limit_curve; // x, y, angle triples
-	int limit_curve_valid;
+	int limit_curve_count;
 
 	// temporary; matrices can only be freed from the top, but that's enough for us
 	workspace_t *ws;
 } DrawingContext;
 
+typedef enum {
+	VT_POINT,
+	VT_LINE
+} vector_type_t;
+
 // implemented in limit_set.c
 void cartanMatrix(gsl_matrix *cartan, double a1, double a2, double a3, double s);
 void initializeTriangleGenerators(gsl_matrix **gen, gsl_matrix *cartan);