/usr/include/root/TArcBall.h is in libroot-graf3d-gl-dev 5.34.30-0ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | // @(#)root/gl:$Id$
// Author: Timur Pocheptsov 03/08/2004
/*************************************************************************
* Copyright (C) 1995-2004, Rene Brun and Fons Rademakers. *
* All rights reserved. *
* *
* For the licensing terms see $ROOTSYS/LICENSE. *
* For the list of contributors see $ROOTSYS/README/CREDITS. *
*************************************************************************/
#ifndef ROOT_TArcBall
#define ROOT_TArcBall
#ifndef ROOT_Rtypes
#include "Rtypes.h"
#endif
class TPoint;
class TArcBall {
private:
Double_t fThisRot[9];
Double_t fLastRot[9];
Double_t fTransform[16];
Double_t fStVec[3]; //Saved click vector
Double_t fEnVec[3]; //Saved drag vector
Double_t fAdjustWidth; //Mouse bounds width
Double_t fAdjustHeight; //Mouse bounds height
//Non-copyable
TArcBall(const TArcBall &);
TArcBall & operator = (const TArcBall &);
void ResetMatrices();
protected:
void MapToSphere(const TPoint &NewPt, Double_t *NewVec)const;
public:
TArcBall(UInt_t NewWidth = 100, UInt_t NewHeight = 100);
virtual ~TArcBall() { }
void SetBounds(UInt_t NewWidth, UInt_t NewHeight)
{
fAdjustWidth = 1.0f / ((NewWidth - 1.) * 0.5);
fAdjustHeight = 1.0f / ((NewHeight - 1.) * 0.5);
}
//Mouse down
void Click(const TPoint &NewPt);
//Mouse drag, calculate rotation
void Drag(const TPoint &NewPt);
const Double_t *GetRotMatrix()const
{
return fTransform;
}
ClassDef(TArcBall,0) //ArcBall manipulator
};
#endif
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