System.Types.TSmallPoint
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) _ALWAYS_INLINE {
TSmallPoint sp;
sp.x = x;
sp.y = y;
return sp;
}
TSmallPoint& init(short ix, short iy) _ALWAYS_INLINE {
x = ix;
y = iy;
return *this;
}
bool operator ==(const TSmallPoint& sp) const _ALWAYS_INLINE {
return x == sp.x && y == sp.y;
}
bool operator !=(const TSmallPoint& sp) const _ALWAYS_INLINE {
return !(*this == sp );
}
TSmallPoint operator +(const TSmallPoint& sp) const _ALWAYS_INLINE {
TSmallPoint res;
return res.init((short)(this->x + sp.x), (short)(this->y + sp.y));
}
TSmallPoint operator -(const TSmallPoint& sp) const _ALWAYS_INLINE {
TSmallPoint res;
return res.init((short)(this->x - sp.x), (short)(this->y - sp.y));
}
TSmallPoint& operator +=(const TSmallPoint& rhs) _ALWAYS_INLINE {
this->x += rhs.x;
this->y += rhs.y;
return *this;
}
TSmallPoint& operator -=(const TSmallPoint& rhs) _ALWAYS_INLINE {
this->x -= rhs.x;
this->y -= rhs.y;
return *this;
}
bool IsZero() const _ALWAYS_INLINE {
return !x && !y;
}
double Distance(const TSmallPoint& p2) const _ALWAYS_INLINE {
return hypot(static_cast<double>(p2.x - this->x), static_cast<double>(p2.y - this->y));
}
};
Propriétés
| Type | Visibilité | Source | Unité | Parent |
|---|---|---|---|---|
record struct |
public | System.Types.pas SystemTypes.h |
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.