System.Types.TSmallPoint

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Delphi

  TSmallPoint = record
    x: SmallInt;
    y: SmallInt;
  public
    constructor Create(P : TSmallPoint); overload;
    constructor Create(const X, Y : Word); overload;
    constructor Create(const X, Y : SmallInt); overload;
    class operator Equal(const Lhs, Rhs : TSmallPoint) : Boolean;
    class operator NotEqual(const Lhs, Rhs : TSmallPoint): Boolean;
    class operator Add(const Lhs, Rhs : TSmallPoint): TSmallPoint;
    class operator Subtract(const Lhs, Rhs : TSmallPoint): TSmallPoint;
    function Add(const Point: TSmallPoint): TSmallPoint;
    function Distance(const P2 : TSmallPoint) : Double;
    function IsZero : Boolean;
    function Subtract(const Point: TSmallPoint): TSmallPoint;
  end;

C++

struct TSmallPoint {short x;
short y;
static TSmallPoint Create(const short x, const short y)
{
TSmallPoint sp;
sp.x = x;
sp.y = y;
return sp;
}
TSmallPoint& init(short ix, short iy)
{
x = ix;
y = iy;
return *this;
}
bool operator ==(const TSmallPoint& sp) const
{
return x == sp.x && y == sp.y;
}
bool operator !=(const TSmallPoint& sp) const
{
return !(*this == sp );
}
TSmallPoint operator +(const TSmallPoint& sp) const
{
TSmallPoint res;
return res.init((short)(this->x + sp.x), (short)(this->y + sp.y));
}
TSmallPoint operator -(const TSmallPoint& sp) const
{
TSmallPoint res;
return res.init((short)(this->x - sp.x), (short)(this->y - sp.y));
}
TSmallPoint& operator +=(const TSmallPoint& rhs)
{
this->x += rhs.x;
this->y += rhs.y;
return *this;
}
TSmallPoint& operator -=(const TSmallPoint& rhs)
{
this->x -= rhs.x;
this->y -= rhs.y;
return *this;
}
bool IsZero() const
{
return !x && !y;
}
double Distance(const TSmallPoint& p2) const
{
return hypot(p2.x - this->x, p2.y - this->y);
}
};

Propriétés

Type	Visibilité	Source	Unité	Parent
struct class	public	System.Types.pas System.Types.hpp	System.Types	System.Types

Description

Le type TSmallPoint définit un point avec deux coordonnées de 16 bits.

Le type TSmallPoint définit un point avec deux coordonnées de 16 bits. x spécifie la coordonnée horizontale du point et y la coordonnée verticale.

Voir aussi

• Routines de conversion des types