library: libTable
#include "TPointsArray3D.h"

TPointsArray3D


class description - source file - inheritance tree (.pdf)

class TPointsArray3D : public TPoints3DABC

Inheritance Chart:
TObject
<-
TPoints3DABC
<-
TPointsArray3D

    public:
TPointsArray3D() TPointsArray3D(Int_t n, Option_t* option = "") TPointsArray3D(Int_t n, Float_t* p, Option_t* option = "") TPointsArray3D(Int_t n, Float_t* x, Float_t* y, Float_t* z, Option_t* option = "") TPointsArray3D(const TPointsArray3D& points) virtual ~TPointsArray3D() static TClass* Class() virtual void Copy(TObject& points) const virtual Int_t DistancetoPrimitive(Int_t px, Int_t py) virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py) virtual Int_t GetLastPosition() const virtual Int_t GetN() const virtual Option_t* GetOption() const virtual Float_t* GetP() const virtual Float_t GetX(Int_t idx) const virtual Float_t* GetXYZ(Float_t* xyz, Int_t idx, Int_t num = 1) const virtual const Float_t* GetXYZ(Int_t idx) const virtual Float_t GetY(Int_t idx) const virtual Float_t GetZ(Int_t idx) const virtual Bool_t Is3D() const virtual TClass* IsA() const virtual void ls(Option_t* option = "") const TPointsArray3D& operator=(const TPointsArray3D&) virtual void PaintPoints(Int_t, Float_t*, Option_t*) virtual void Print(Option_t* option = "") const virtual Int_t SetLastPosition(Int_t idx) virtual void SetOption(Option_t* option = "") virtual Int_t SetPoint(Int_t point, Float_t x, Float_t y, Float_t z) virtual Int_t SetPoints(Int_t n, Float_t* p = 0, Option_t* option = "") virtual void ShowMembers(TMemberInspector& insp, char* parent) virtual Int_t Size() const virtual void Streamer(TBuffer& b) void StreamerNVirtual(TBuffer& b)

Data Members


    protected:
Int_t fN Number of points Float_t* fP Array of 3-D coordinates (x,y,z) TString fOption options UInt_t fGLList The list number for OpenGL view Int_t fLastPoint The index of the last filled point

Class Description

 TPointsArray3D is an abstract class of the array of 3-dimensional points.
 It has 4 different constructors.

 This class has no implementation for Paint, Draw, and SavePrimitive methods

   First one, without any parameters TPointsArray3D(), we call 'default
 constructor' and it's used in a case that just an initialisation is
 needed (i.e. pointer declaration).

       Example:
                 TPointsArray3D *pl1 = new TPointsArray3D;


   Second one is 'normal constructor' with, usually, one parameter
 n (number of points), and it just allocates a space for the points.

       Example:
                 TPointsArray3D pl1(150);


   Third one allocates a space for the points, and also makes
 initialisation from the given array.

       Example:
                 TPointsArray3D pl1(150, pointerToAnArray);


   Fourth one is, almost, similar to the constructor above, except
 initialisation is provided with three independent arrays (array of
 x coordinates, y coordinates and z coordinates).

       Example:
                 TPointsArray3D pl1(150, xArray, yArray, zArray);


TPointsArray3D()
*-*-*-*-*-*-*-*-*-*-*-*-*3-D PolyLine default constructor*-*-*-*-*-*-*-*-*-*-*
*-*                      ================================

TPointsArray3D(Int_t n, Option_t *option)
*-*-*-*-*-*3-D PolyLine normal constructor without initialisation*-*-*-*-*-*-*
*-*        ======================================================
*-*  If n < 0 the default size (2 points) is set
*-*

TPointsArray3D(Int_t n, Float_t *p, Option_t *option)
*-*-*-*-*-*-*-*-*-*-*-*-*3-D Point3D normal constructor*-*-*-*-*-*-*-*-*-*-*-*
*-*                      ===============================
*-*  If n < 0 the default size (2 points) is set
*-*

TPointsArray3D(Int_t n, Float_t *x, Float_t *y, Float_t *z, Option_t *option)
*-*-*-*-*-*-*-*-*-*-*-*-*3-D PolyLine normal constructor*-*-*-*-*-*-*-*-*-*-*-*
*-*                      ===============================
*-*  If n < 0 the default size (2 points) is set
*-*

~TPointsArray3D()
*-*-*-*-*-*-*-*-*-*-*-*-*3-D PolyLine default destructor*-*-*-*-*-*-*-*-*-*-*-*
*-*                      ===============================

TPointsArray3D(const TPointsArray3D &point) : TPoints3DABC(point)

void Copy(TObject &obj) const
*-*-*-*-*-*-*-*-*-*-*-*-*Copy this TPointsArray3D to another *-*-*-*-*-*-*-*-*-*-*-*
*-*                      ==============================

Int_t DistancetoPrimitive(Int_t px, Int_t py)
*-*-*-*-*-*-*Compute distance from point px,py to a 3-D points *-*-*-*-*-*-*
*-*          =====================================================
*-*
*-*  Compute the closest distance of approach from point px,py to each segment
*-*  of the polyline.
*-*  Returns when the distance found is below DistanceMaximum.
*-*  The distance is computed in pixels units.
*-*
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*

void ExecuteEvent(Int_t event, Int_t px, Int_t py)
*-*-*-*-*-*-*-*-*-*Execute action corresponding to one event*-*-*-*-*-*-*-*-*-*
*-*                =========================================

void ls(Option_t *option) const
*-*-*-*-*-*-*-*-*-*List this 3-D polyline with its attributes*-*-*-*-*-*-*
*-*                ==========================================

void Print(Option_t *option) const
*-*-*-*-*-*-*-*-*-*Dump this 3-D polyline with its attributes*-*-*-*-*-*-*-*-*
*-*                ==========================================

Int_t SetLastPosition(Int_t idx)

Int_t SetPoint(Int_t n, Float_t x, Float_t y, Float_t z)
*-*-*-*-*-*-*-*-*-*Initialize one point of the 3-D polyline*-*-*-*-*-*-*-*-*-*
*-*                ========================================
*-*  if n is more then the current TPointsArray3D size (n > fN) - re-allocate this
*-*  The new size of the object will be fN += min(10,fN/4)
*-*
*-*  return the total number of points introduced
*-*

Int_t SetPoints(Int_t n, Float_t *p, Option_t *option)
*-*-*-*-*-*-*-*-*-*-*Set new values for this 3-D polyline*-*-*-*-*-*-*-*-*-*-*
*-*                  ====================================
*-* return the total number of points introduced
*-*

void Streamer(TBuffer &b)
*-*-*-*-*-*-*-*-*Stream a class object*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*              =========================================



Inline Functions


                  Int_t GetLastPosition() const
                  Int_t GetN() const
               Float_t* GetP() const
                Float_t GetX(Int_t idx) const
                Float_t GetY(Int_t idx) const
                Float_t GetZ(Int_t idx) const
               Float_t* GetXYZ(Float_t* xyz, Int_t idx, Int_t num = 1) const
         const Float_t* GetXYZ(Int_t idx) const
              Option_t* GetOption() const
                 Bool_t Is3D() const
                   void PaintPoints(Int_t, Float_t*, Option_t*)
                   void SetOption(Option_t* option = "")
                  Int_t Size() const
                TClass* Class()
                TClass* IsA() const
                   void ShowMembers(TMemberInspector& insp, char* parent)
                   void StreamerNVirtual(TBuffer& b)
        TPointsArray3D& operator=(const TPointsArray3D&)


Author: Valery Fine(fine@mail.cern.ch) 24/04/99
Last update: root/star:$Name: $:$Id: TPointsArray3D.cxx,v 1.5 2003/02/11 12:17:19 rdm Exp $


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