class TPointsArray3D: public TPoints3DABC
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);
Function Members (Methods)
public:
protected:
| virtual void | TObject::DoError(int level, const char* location, const char* fmt, va_list va) const |
| void | TObject::MakeZombie() |
Data Members
private:
| enum TObject::EStatusBits { | kCanDelete | |
| kMustCleanup | ||
| kObjInCanvas | ||
| kIsReferenced | ||
| kHasUUID | ||
| kCannotPick | ||
| kNoContextMenu | ||
| kInvalidObject | ||
| }; | ||
| enum TObject::[unnamed] { | kIsOnHeap | |
| kNotDeleted | ||
| kZombie | ||
| kBitMask | ||
| kSingleKey | ||
| kOverwrite | ||
| kWriteDelete | ||
| }; |
Class Charts
Function documentation
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 -
void Copy(TObject& points) 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 SetPoint(Int_t point, 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 = 0, 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*-*-*-*-*-*-*- *-* =========================================