1 files changed, 44 insertions, 0 deletions
diff --git a/NvBlast/tools/CurveEditor/source/Internal/Curve/CatmullRomSpline.h b/NvBlast/tools/CurveEditor/source/Internal/Curve/CatmullRomSpline.h
new file mode 100644
index 0000000..71573a9
--- /dev/null
+++ b/NvBlast/tools/CurveEditor/source/Internal/Curve/CatmullRomSpline.h
@@ -0,0 +1,44 @@
+#ifndef CatmullRomSpline_h__
+#define CatmullRomSpline_h__
+
+#include <QtCore/QPoint>
+#include <vector>
+#include "Spline.h"
+
+namespace nvidia {
+namespace CurveEditor {
+
+class CatmullRomSpline : public Spline
+{
+public:
+    static float splineInterpolate(float v0, float v1, float v2, float v3, float u);
+    static QPointF splineInterpolate(const QPointF& p0, const QPointF& p1, const QPointF& p2, const QPointF& p3, float u);
+    static std::vector<QPointF> sample(const std::vector<QPointF>& inControlPoints, int numSegments = 100);
+private:
+    static void _computeSplineBasis(float u, float* basis);
+
+public:
+    CatmullRomSpline(long segmentCount = 100);
+    CatmullRomSpline(int numControlPoints, long segmentCount = 100);
+    virtual ~CatmullRomSpline(void);
+
+    int getControlPointCount()  {   return (int)_controlPoints.size(); }
+    // add a spline point to last
+    void appendControlPoint(QPointF point) { _controlPoints.push_back(point); }
+    void setControlPoint(int index, const QPointF& point);
+    QPointF getControlPoint(int index);
+    std::vector<QPointF> getControlPoints();
+    void reset(void);
+    void insertControlPointAt(int index);
+    void removeControlPoints(std::vector<int>& points);
+
+private:
+    virtual void _doSample();
+private:
+    std::vector<QPointF>         _controlPoints;
+};
+
+} // namespace CurveEditor
+} // namespace nvidia
+
+#endif // CatmullRomSpline_h__