#ifndef jbt_twist_h
#define jbt_twist_h

#include "warp.h"


class jbt_twist : public jbt_warp
{
public:
    

    jbt_twist( jFlt theta = 180, jbt_blobtree* obj = 0 );


    jbt_twist( jFlt theta, jFlt ymin, jFlt ymax, jbt_blobtree* obj=0 );

    jbt_blobtree::Type type() const { return jbt_blobtree::jbtTwist; }

    void precompute( const jVec3& );
    jVec3 warp( const jVec3& ) const;
    jVec3 unwarp( const jVec3& ) const;

private:

    jFlt ymin, ymax;
    jFlt theta, wk, Ctheta, Stheta;
};

#endif