1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/curve.h	Thu Nov 14 05:27:09 2013 +0200
     1.3 @@ -0,0 +1,64 @@
     1.4 +#ifndef CURVE_H_
     1.5 +#define CURVE_H_
     1.6 +
     1.7 +#include <string>
     1.8 +#include <vector>
     1.9 +#include "vmath/vmath.h"
    1.10 +#include "mesh.h"
    1.11 +
    1.12 +class Curve {
    1.13 +private:
    1.14 +	std::string name;
    1.15 +
    1.16 +	std::vector<Vector3> cv;
    1.17 +	float thickness;
    1.18 +
    1.19 +	int segm_subdiv, ring_subdiv;
    1.20 +
    1.21 +	/// normalized arc-lengths of each control vertex from the beginning
    1.22 +	mutable std::vector<float> length;
    1.23 +	mutable bool lengths_valid;
    1.24 +
    1.25 +	mutable Vector3 bbmin, bbmax;
    1.26 +	mutable bool bbox_valid;
    1.27 +
    1.28 +	mutable Mesh mesh;
    1.29 +	mutable bool mesh_valid;
    1.30 +
    1.31 +	float reparametrize(float t) const;
    1.32 +
    1.33 +	void calc_cvlengths() const;
    1.34 +	void update_mesh() const;
    1.35 +
    1.36 +public:
    1.37 +	Curve();
    1.38 +	Curve(const Vector3 *points, int num_points);
    1.39 +	Curve(const Vector2 *points, int num_points);
    1.40 +
    1.41 +	void set_name(const char *name);
    1.42 +	const char *get_name() const;
    1.43 +
    1.44 +	bool empty() const;
    1.45 +
    1.46 +	void set_thickness(float thickness);
    1.47 +	void set_subdiv(int seg, int ring);
    1.48 +
    1.49 +	void clear();
    1.50 +	void add_point(const Vector3 &pt);
    1.51 +	Vector3 &get_point(int idx);
    1.52 +	const Vector3 &get_point(int idx) const;
    1.53 +	int get_count() const;
    1.54 +
    1.55 +	Vector3 &operator[] (int idx);
    1.56 +	const Vector3 &operator[] (int idx) const;
    1.57 +
    1.58 +	void get_bbox(Vector3 *bbmin, Vector3 *bbmax) const;
    1.59 +	void normalize();
    1.60 +
    1.61 +	Vector3 get_pos(float t) const;
    1.62 +	Vector3 operator() (float t) const;
    1.63 +
    1.64 +	void draw() const;
    1.65 +};
    1.66 +
    1.67 +#endif	// CURVE_H_