FMX.InertialMovement.TPointD
Delphi
TPointD = record
X: Double;
Y: Double;
public
constructor Create(const P: TPointD); overload;
constructor Create(const P: TPointF); overload;
constructor Create(const P: TPoint); overload;
constructor Create(const X, Y: Double); overload;
procedure SetLocation(const P: TPointD);
class operator Equal(const Lhs, Rhs: TPointD): Boolean;
class operator NotEqual(const Lhs, Rhs: TPointD): Boolean; overload;
class operator Add(const Lhs, Rhs: TPointD): TPointD;
class operator Subtract(const Lhs, Rhs: TPointD): TPointD;
class operator Implicit(const APointF: TPointF): TPointD;
function Distance(const P2: TPointD): Double;
function Abs: Double;
procedure Offset(const DX, DY: Double);
end;
C++
struct DECLSPEC_DRECORD TPointD
{
public:
double X;
double Y;
__fastcall TPointD(const TPointD &P)/* overload */;
__fastcall TPointD(const System::Types::TPointF &P)/* overload */;
__fastcall TPointD(const System::Types::TPoint &P)/* overload */;
__fastcall TPointD(const double X, const double Y)/* overload */;
void __fastcall SetLocation(const TPointD &P);
static bool __fastcall _op_Equality(const TPointD &Lhs, const TPointD &Rhs);
bool __fastcall operator==(const TPointD& __rhs) { return TPointD::_op_Equality(*this, __rhs); };
static bool __fastcall _op_Inequality(const TPointD &Lhs, const TPointD &Rhs);
bool __fastcall operator!=(const TPointD& __rhs) { return TPointD::_op_Inequality(*this, __rhs); };
static TPointD __fastcall _op_Addition(const TPointD &Lhs, const TPointD &Rhs);
TPointD __fastcall operator+(const TPointD& __rhs) { return TPointD::_op_Addition(*this, __rhs); };
static TPointD __fastcall _op_Subtraction(const TPointD &Lhs, const TPointD &Rhs);
TPointD __fastcall operator-(const TPointD& __rhs) { return TPointD::_op_Subtraction(*this, __rhs); };
static TPointD __fastcall _op_Implicit(const System::Types::TPointF &APointF);
TPointD& __fastcall operator=(const System::Types::TPointF &APointF) { *this = TPointD::_op_Implicit(APointF); return *this; };
double __fastcall Distance(const TPointD &P2);
double __fastcall Abs();
void __fastcall Offset(const double DX, const double DY);
TPointD() {}
};
プロパティ
| 種類 | 可視性 | ソース | ユニット | 親 |
|---|---|---|---|---|
record struct |
public | FMX.InertialMovement.pas FMX.InertialMovement.hpp |
FMX.InertialMovement | FMX.InertialMovement |
説明
点の座標を論理単位で定義します。
TPointD 型では、点位置の X 座標と Y 座標（Double 浮動小数点型）を定義しています。コンテナの左上隅が座標の原点になっています。X と Y はそれぞれ、点の水平座標と垂直座標を指定します。通常、X 値と Y 値は、密度に依存しないピクセル数（DP）（論理単位）を表します。