curvedraw
annotate src/curve.h @ 2:ce7aa9a0594c
improved curve editing
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Thu, 17 Dec 2015 05:13:25 +0200 |
| parents | 8e524989c904 |
| children | 9f75208b81cd |
| rev | line source |
|---|---|
| nuclear@0 | 1 #ifndef CURVE_H_ |
| nuclear@0 | 2 #define CURVE_H_ |
| nuclear@0 | 3 |
| nuclear@0 | 4 #include <vector> |
| nuclear@0 | 5 #include <vmath/vmath.h> |
| nuclear@0 | 6 |
| nuclear@0 | 7 enum CurveType { |
| nuclear@0 | 8 CURVE_LINEAR, |
| nuclear@0 | 9 CURVE_HERMITE, |
| nuclear@0 | 10 CURVE_BSPLINE |
| nuclear@0 | 11 }; |
| nuclear@0 | 12 |
| nuclear@0 | 13 class Curve { |
| nuclear@0 | 14 private: |
| nuclear@0 | 15 std::vector<Vector3> cp; |
| nuclear@0 | 16 CurveType type; |
| nuclear@0 | 17 |
| nuclear@0 | 18 public: |
| nuclear@0 | 19 Curve(CurveType type = CURVE_HERMITE); |
| nuclear@0 | 20 |
| nuclear@0 | 21 void set_type(CurveType type); |
| nuclear@0 | 22 CurveType get_type() const; |
| nuclear@0 | 23 |
| nuclear@0 | 24 void add_point(const Vector2 &p, float weight = 1.0f); |
| nuclear@0 | 25 bool remove_point(int idx); |
| nuclear@0 | 26 |
| nuclear@0 | 27 int nearest_point(const Vector2 &p); |
| nuclear@0 | 28 |
| nuclear@2 | 29 bool empty() const; |
| nuclear@2 | 30 int size() const; |
| nuclear@2 | 31 Vector3 &operator [](int idx); |
| nuclear@2 | 32 const Vector3 &operator [](int idx) const; |
| nuclear@2 | 33 |
| nuclear@0 | 34 const Vector3 &get_homo_point(int idx) const; // homogeneous point |
| nuclear@0 | 35 Vector2 get_point(int idx) const; |
| nuclear@0 | 36 float get_weight(int idx) const; |
| nuclear@0 | 37 |
| nuclear@0 | 38 bool set_point(int idx, const Vector2 &p, float weight = 1.0f); |
| nuclear@0 | 39 bool set_weight(int idx, float weight); |
| nuclear@2 | 40 // move point without changing its weight |
| nuclear@2 | 41 bool move_point(int idx, const Vector2 &p); |
| nuclear@0 | 42 |
| nuclear@0 | 43 Vector2 interpolate(float t, CurveType type) const; |
| nuclear@0 | 44 Vector2 interpolate(float t) const; |
| nuclear@0 | 45 Vector2 operator ()(float t) const; |
| nuclear@2 | 46 |
| nuclear@2 | 47 void draw(int res = -1) const; |
| nuclear@2 | 48 void draw_cp(float sz = -1.0f) const; |
| nuclear@0 | 49 }; |
| nuclear@0 | 50 |
| nuclear@0 | 51 #endif // CURVE_H_ |