/*
$Id$
*/
+
+/*
+ Base class for defining large parts of the ITS geometry, v11.
+ */
#include <TObject.h>
+#include <AliLog.h>
class TGeoArb8;
class TGeoPcon;
class TGeoTube;
class AliITSv11Geometry : public TObject {
public:
- AliITSv11Geometry(){fDebug=kTRUE;};
- AliITSv11Geometry(Bool_t debug){fDebug=debug;};
+ AliITSv11Geometry():fDebug(AliDebugLevel()) {};
+ AliITSv11Geometry(Int_t debug):fDebug(debug) {};
virtual ~AliITSv11Geometry(){};
//
- void SetDebug(){fDebug=kTRUE;}
- void SetNoDebug(){fDebug=kFALSE;}
- static Double_t RmaxFrom2Points(TGeoPcon *p,Int_t i1,Int_t i2,Double_t z);
- static Double_t RminFrom2Points(TGeoPcon *p,Int_t i1,Int_t i2,Double_t z);
- static Double_t RFrom2Points(Double_t *p,Double_t *Z,Int_t i1,Int_t i2,
- Double_t z);
- static Double_t Zfrom2MinPoints(TGeoPcon *p,Int_t i1,Int_t i2,Double_t r);
- static Double_t Zfrom2MaxPoints(TGeoPcon *p,Int_t i1,Int_t i2,Double_t r);
- static Double_t Zfrom2Points(Double_t *Z,Double_t *p,Int_t i1,Int_t i2,
- Double_t r);
- static Double_t RmaxFromZpCone(TGeoPcon *p,int ip,Double_t tc,Double_t z,
- Double_t th=0.0);
- static Double_t RmaxFromZpCone(TGeoPcon *p,Double_t tc,Double_t z,
- Double_t th=0.0){
- return RmaxFromZpCone(p,4,tc,z,th);};
- static Double_t RFromZpCone(Double_t *Rmax,Double_t *Z,int ip,Double_t tc,
- Double_t z,Double_t th=0.0);
- static Double_t RmaxFromZpCone(Double_t *Rmax,Double_t *Z,Double_t tc,
- Double_t z,Double_t th=0.0){
- return RFromZpCone(Rmax,Z,4,tc,z,th);};
- static Double_t RminFromZpCone(TGeoPcon *p,Int_t ip,Double_t tc,Double_t z,
- Double_t th=0.0);
- static Double_t RminFromZpCone(TGeoPcon *p,Double_t tc,Double_t z,
- Double_t th=0.0){
- return RminFromZpCone(p,3,tc,z,th);};
- static Double_t RminFromZpCone(Double_t *Rmin,Double_t *Z,Double_t tc,
- Double_t z,Double_t th=0.0){
- return RFromZpCone(Rmin,Z,3,tc,z,th);};
- static Double_t ZFromRmaxpCone(TGeoPcon *p,int ip,Double_t tc,Double_t r,
- Double_t th=0.0);
- static Double_t ZFromRmaxpCone(TGeoPcon *p,Double_t tc,Double_t r,
- Double_t th=0.0)
- {return ZFromRmaxpCone(p,4,tc,r,th);};
- static Double_t ZFromRmaxpCone(Double_t *GetRmax,Double_t *GetZ,Int_t ip,
- Double_t tc,Double_t r,Double_t th=0.0);
- static Double_t ZFromRmaxpCone(Double_t *GetRmax,Double_t *GetZ,
- Double_t tc,Double_t r,Double_t th=0.0){
- return ZFromRmaxpCone(GetRmax,GetZ,4,tc,r,th);};
- static Double_t ZFromRminpCone(TGeoPcon *p,int ip,Double_t tc,Double_t r,
- Double_t th=0.0);
- static Double_t ZFromRminpCone(TGeoPcon *p,Double_t tc,Double_t r,
- Double_t th=0.0)
- {return ZFromRminpCone(p,3,tc,r,th);};
- static void InsidePoint(TGeoPcon *p,Int_t i1,Int_t i2,Int_t i3,
- Double_t Cthick,TGeoPcon *q,Int_t j1,Bool_t max);
- static void InsidePoint(Double_t x0,Double_t y0,Double_t x1,Double_t y1,
+ // Sets the debug flag for debugging output
+ void SetDebug(Int_t level=5){fDebug=level;}
+ // Clears the debug flag so no debugging output will be generated
+ void SetNoDebug(){fDebug=0;}
+ // Returns the debug flag value
+ Bool_t GetDebug(Int_t level=1)const {return fDebug>=level;}
+ //
+ // Static functions
+ //
+ // Define Trig functions for use with degrees (standerd TGeo angles).
+ // Sine function
+ Double_t SinD(Double_t deg)const{return TMath::Sin(deg*TMath::DegToRad());}
+ // Cosine function
+ Double_t CosD(Double_t deg)const{return TMath::Cos(deg*TMath::DegToRad());}
+ // Tangent function
+ Double_t TanD(Double_t deg)const{return TMath::Tan(deg*TMath::DegToRad());}
+ // Determine the intersection of two lines
+ void IntersectLines(Double_t m, Double_t x0, Double_t y0,
+ Double_t n, Double_t x1, Double_t y1,
+ Double_t &xi, Double_t &yi)const;
+ // Determine the intersection of a line and a circle
+ static Bool_t IntersectCircle(Double_t m, Double_t x0, Double_t y0,
+ Double_t rr, Double_t xc, Double_t yc,
+ Double_t &xi1, Double_t &yi1,
+ Double_t &xi2, Double_t &yi2);
+ // Given the line, defined by the two points (x0,y0) and (x1,y1) and the
+ // point x, return the value of y.
+ Double_t Yfrom2Points(Double_t x0,Double_t y0,
+ Double_t x1,Double_t y1,Double_t x)const;
+ // Given the line, defined by the two points (x0,y0) and (x1,y1) and the
+ // point y, return the value of x.
+ Double_t Xfrom2Points(Double_t x0,Double_t y0,
+ Double_t x1,Double_t y1,Double_t y)const;
+ // Given 2 points from a TGeoPcon(z and Rmax) finds Rmax at given z
+ Double_t RmaxFrom2Points(const TGeoPcon *p,Int_t i1,Int_t i2,
+ Double_t z)const;
+ // Given 2 points from a TGeoPcon(z and Rmin) finds Rmin at given z
+ Double_t RminFrom2Points(const TGeoPcon *p,Int_t i1,Int_t i2,
+ Double_t z)const;
+ // Give two points in the array ar and az, returns the value r
+ // corresponding z along the line defined by those two points
+ Double_t RFrom2Points(const Double_t *ar,const Double_t *az,
+ Int_t i1,Int_t i2,Double_t z)const;
+ // Given 2 points from a TGeoPcon(z and Rmax) finds z at given Rmin
+ Double_t Zfrom2MinPoints(const TGeoPcon *p,Int_t i1,Int_t i2,
+ Double_t r)const;
+ // Given 2 points from a TGeoPcon(z and Rmax) finds z at given Rmax
+ Double_t Zfrom2MaxPoints(const TGeoPcon *p,Int_t i1,Int_t i2,
+ Double_t r)const;
+ // Give two points in the array ar and az, returns the value z
+ // corresponding r along the line defined by those two points
+ Double_t Zfrom2Points(const Double_t *az,const Double_t *ar,
+ Int_t i1,Int_t i2,Double_t r)const;
+ // Given 1 point from a TGeoPcon(z and Rmax) the angle tc returns r for
+ // a given z, an offset (distnace perpendicular to line at angle tc) of
+ // th may be applied.
+ Double_t RmaxFromZpCone(const TGeoPcon *p,int ip,Double_t tc,
+ Double_t z,Double_t th=0.0)const;
+ Double_t RFromZpCone(const Double_t *ar,const Double_t *az,int ip,
+ Double_t tc,Double_t z,Double_t th=0.0)const;
+ // Given 1 point from a TGeoPcon(z and Rmin) the angle tc returns r for
+ // a given z, an offset (distnace perpendicular to line at angle tc) of
+ // th may be applied.
+ Double_t RminFromZpCone(const TGeoPcon *p,Int_t ip,Double_t tc,
+ Double_t z,Double_t th=0.0)const;
+ // Given 1 point from a TGeoPcon(z and Rmax) the angle tc returns z for
+ // a given Rmax, an offset (distnace perpendicular to line at angle tc) of
+ // th may be applied.
+ Double_t ZFromRmaxpCone(const TGeoPcon *p,int ip,Double_t tc,
+ Double_t r,Double_t th=0.0)const;
+ // General Outer cone Surface equation for z.
+ Double_t ZFromRmaxpCone(const Double_t *ar,const Double_t *az,
+ Int_t ip,Double_t tc,Double_t r,
+ Double_t th=0.0)const;
+ // Given 1 point from a TGeoPcon(z and Rmin) the angle tc returns z for
+ // a given Rmin, an offset (distnace perpendicular to line at angle tc) of
+ // th may be applied.
+ Double_t ZFromRminpCone(const TGeoPcon *p,int ip,Double_t tc,
+ Double_t r,Double_t th=0.0)const;
+ // Given two lines defined by the points i1, i2,i3 in the TGeoPcon
+ // class p that intersect at point p->GetZ(i2) return the point z,r
+ // that is Cthick away in the TGeoPcon class q. If points i1=i2
+ // and max == kTRUE, then p->GetRmin(i1) and p->GetRmax(i2) are used.
+ // if points i2=i3 and max=kTRUE then points p->GetRmax(i2) and
+ // p->GetRmin(i3) are used. If i2=i3 and max=kFALSE, then p->GetRmin(i2)
+ // and p->GetRmax(i3) are used.
+ void InsidePoint(const TGeoPcon *p,Int_t i1,Int_t i2,Int_t i3,
+ Double_t Cthick,TGeoPcon *q,Int_t j1,Bool_t max)const;
+ // Given two intersecting lines defined by the points (x0,y0), (x1,y1) and
+ // (x1,y1), (x2,y2) {intersecting at (x1,y1)} the point (x,y) a distance
+ // c away is returned such that two lines a distance c away from the
+ // lines defined above intersect at (x,y).
+ void InsidePoint(Double_t x0,Double_t y0,Double_t x1,Double_t y1,
Double_t x2,Double_t y2,Double_t c,
- Double_t &x,Double_t &y);
- static void RadiusOfCurvature(Double_t rc,Double_t theta0,Double_t z0,
- Double_t r0,Double_t theta1,Double_t &z1,
- Double_t &r1);
- void printArb8(TGeoArb8 *A);
- void printPcon(TGeoPcon *A);
- void printTube(TGeoTube *A);
- void printTubeSeg(TGeoTubeSeg *A);
- void printConeSeg(TGeoConeSeg *A);
- void printBBox(TGeoBBox *A);
- Bool_t GetDebug(){return fDebug;}
+ Double_t &x,Double_t &y)const;
+ // Given a initial point z0,r0, the initial angle theta0, and the radius
+ // of curvature, returns the point z1, r1 at the angle theta1. Theta
+ // measured from the r axis in the clock wise direction [degrees].
+ void RadiusOfCurvature(Double_t rc,Double_t theta0,Double_t z0,
+ Double_t r0,Double_t theta1,Double_t &z1,
+ Double_t &r1)const;
+ //
+ // Output functions for debugging
+ //
+ // Prints out the contents of the TGeoArb8
+ void PrintArb8(const TGeoArb8 *a) const;
+ // Prints out the contents of the TGeoPcon
+ void PrintPcon(const TGeoPcon *a) const;
+ // Prints out the contents of the TGeoTube
+ void PrintTube(const TGeoTube *a) const;
+ // Prints out the contents of the TGeoTubeSeg
+ void PrintTubeSeg(const TGeoTubeSeg *a) const;
+ // Prints out the contents of the TGeoConeSeg
+ void PrintConeSeg(const TGeoConeSeg *a) const;
+ // Prints out the contents of the TGeoBBox
+ void PrintBBox(const TGeoBBox *a) const;
+ // Draws a 2D crossection of the TGeoPcon r,z section
+ void DrawCrossSection(const TGeoPcon *p,Int_t fillc=7,Int_t fills=4050,
+ Int_t linec=3,Int_t lines=1,Int_t linew=4,
+ Int_t markc=2,Int_t marks=4,
+ Float_t marksize=1.0) const;
+ // Compute the angles where a line intersects a circle.
+ Bool_t AngleOfIntersectionWithLine(Double_t x0,Double_t y0,
+ Double_t x1,Double_t y1,
+ Double_t xc,Double_t yc,
+ Double_t rc,Double_t &t0,
+ Double_t &t1)const;
+ void AnglesForRoundedCorners(Double_t x0,Double_t y0,Double_t r0,
+ Double_t x1,Double_t y1,Double_t r1,
+ Double_t &t0,Double_t &t1)const;
+ // Define a general CreateMaterials function here so that if
+ // any specific subdetector does not define it this null function
+ // will due. This function is not declaired const so that a sub-
+ // detector's version may use class variables if they wish.
+ void CreateDefaultMaterials();
+ virtual void CreateMaterials(){};
+ // Function to create figure needed for this class' documentation
+ void MakeFigure1(Double_t x0=0.0,Double_t y0=0.0,Double_t r0=2.0,
+ Double_t x1=-4.0,Double_t y1=-2.0,Double_t r1=1.0);
+ protected:
+
+ // Units, Convert from k?? to cm,degree,GeV,seconds,
+ static const Double_t fgkmicron; // Convert micron to TGeom's cm.
+ static const Double_t fgkmm; // Convert mm to TGeom's cm.
+ static const Double_t fgkcm; // Convert cm to TGeom's cm.
+ static const Double_t fgkDegree; //Convert degrees to TGeom's degrees
+ static const Double_t fgkRadian; //To Radians
+ static const Double_t fgkgcm3; // Density in g/cm^3
+ static const Double_t fgkKgm3; // Density in kg/m^3
+ static const Double_t fgkKgdm3; // Density in kg/dm^3
+ static const Double_t fgkCelsius; // Temperature in degrees Celcius
+ static const Double_t fgkPascal; // Preasure in Pascal
+ static const Double_t fgkKPascal; // Preasure in KPascal
+ static const Double_t fgkeV; // Energy in eV
+ static const Double_t fgkKeV; // Energy in KeV
+ static const Double_t fgkMeV; // Energy in MeV
+ static const Double_t fgkGeV; // Energy in GeV
private:
- Bool_t fDebug; //! Debug flag
+ Double_t AngleForRoundedCorners0(Double_t dx,Double_t dy,
+ Double_t sdr)const;
+ Double_t AngleForRoundedCorners1(Double_t dx,Double_t dy,
+ Double_t sdr)const;
+ Int_t fDebug; //! Debug flag/level
ClassDef(AliITSv11Geometry,1) // Base class for ITS v11 geometry
};
-
-// Units, Convert from k?? to cm,degree,GeV,seconds,
-const Double_t kmm = 0.10; // Convert mm to TGeom's cm.
-const Double_t kcm = 1.00; // Convert cv to TGeom's cm.
-const Double_t kDegree = 1.0; // Convert degrees to TGeom's degrees
-const Double_t kRadian = TMath::DegToRad(); // conver to Radians
-
#endif
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