nuclear@0: #ifndef CURVE_H_
nuclear@0: #define CURVE_H_
nuclear@0: 
nuclear@0: #include <string>
nuclear@0: #include <vector>
nuclear@0: #include "vmath/vmath.h"
nuclear@0: #include "mesh.h"
nuclear@0: 
nuclear@15: namespace goatgfx {
nuclear@15: 
nuclear@0: class Curve {
nuclear@0: private:
nuclear@0: 	std::string name;
nuclear@0: 
nuclear@0: 	std::vector<Vector3> cv;
nuclear@0: 	float thickness;
nuclear@0: 
nuclear@0: 	int segm_subdiv, ring_subdiv;
nuclear@0: 
nuclear@0: 	/// normalized arc-lengths of each control vertex from the beginning
nuclear@0: 	mutable std::vector<float> length;
nuclear@0: 	mutable bool lengths_valid;
nuclear@0: 
nuclear@0: 	mutable Vector3 bbmin, bbmax;
nuclear@0: 	mutable bool bbox_valid;
nuclear@0: 
nuclear@0: 	mutable Mesh mesh;
nuclear@0: 	mutable bool mesh_valid;
nuclear@0: 
nuclear@0: 	float reparametrize(float t) const;
nuclear@0: 
nuclear@0: 	void calc_cvlengths() const;
nuclear@0: 	void update_mesh() const;
nuclear@0: 
nuclear@0: public:
nuclear@0: 	Curve();
nuclear@0: 	Curve(const Vector3 *points, int num_points);
nuclear@0: 	Curve(const Vector2 *points, int num_points);
nuclear@0: 
nuclear@0: 	void set_name(const char *name);
nuclear@0: 	const char *get_name() const;
nuclear@0: 
nuclear@0: 	bool empty() const;
nuclear@0: 
nuclear@0: 	void set_thickness(float thickness);
nuclear@0: 	void set_subdiv(int seg, int ring);
nuclear@0: 
nuclear@0: 	void clear();
nuclear@0: 	void add_point(const Vector3 &pt);
nuclear@0: 	Vector3 &get_point(int idx);
nuclear@0: 	const Vector3 &get_point(int idx) const;
nuclear@0: 	int get_count() const;
nuclear@0: 
nuclear@0: 	Vector3 &operator[] (int idx);
nuclear@0: 	const Vector3 &operator[] (int idx) const;
nuclear@0: 
nuclear@0: 	void get_bbox(Vector3 *bbmin, Vector3 *bbmax) const;
nuclear@0: 	void normalize();
nuclear@0: 
nuclear@0: 	Vector3 get_pos(float t) const;
nuclear@0: 	Vector3 operator() (float t) const;
nuclear@0: 
nuclear@0: 	void draw() const;
nuclear@0: };
nuclear@0: 
nuclear@15: }	// namespace goatgfx
nuclear@15: 
nuclear@0: #endif	// CURVE_H_