AnyCAD.Foundation.GMat2d类 参考

Describes a two column, two row matrix. This sort of object is used in various vectorial or matrix computations. 更多...

类 AnyCAD.Foundation.GMat2d 继承关系图:

Public 成员函数
	GMat2d (global::System.IntPtr cPtr, bool cMemoryOwn)
	仅供内部使用
void	Dispose ()
	GMat2d ()
	Creates a matrix with null coefficients.
	GMat2d (GXY theCol1, GXY theCol2)
	theCol1, theCol2 are the 2 columns of the matrix.
void	SetCol (int theCol, GXY theValue)
	Assigns the two coordinates of theValue to the column of range theCol of this matrix Raises OutOfRange if theCol < 1 or theCol > 2.
void	SetCols (GXY theCol1, GXY theCol2)
	Assigns the number pairs theCol1, theCol2 to the two columns of this matrix
void	SetDiagonal (double theX1, double theX2)
void	SetIdentity ()
	Modifies this matrix, so that it represents the Identity matrix.
void	SetRotation (double theAng)
	Modifies this matrix, so that it represents a rotation. theAng is the angular value in radian of the rotation.
void	SetRow (int theRow, GXY theValue)
	Assigns the two coordinates of theValue to the row of index theRow of this matrix. Raises OutOfRange if theRow < 1 or theRow > 2.
void	SetRows (GXY theRow1, GXY theRow2)
	Assigns the number pairs theRow1, theRow2 to the two rows of this matrix.
void	SetScale (double theS)
	Modifies the matrix such that it represents a scaling transformation, where theS is the scale factor :<code> | theS 0.0 | &lt;me&gt; = | 0.0 theS |</code>
void	SetValue (int theRow, int theCol, double theValue)
	Assigns <theValue> to the coefficient of row theRow, column theCol of this matrix. Raises OutOfRange if theRow < 1 or theRow > 2 or theCol < 1 or theCol > 2
GXY	Column (int theCol)
	Returns the column of theCol index. Raises OutOfRange if theCol < 1 or theCol > 2
double	Determinant ()
	Computes the determinant of the matrix.
GXY	Diagonal ()
	Returns the main diagonal of the matrix.
GXY	Row (int theRow)
	Returns the row of index theRow. Raised if theRow < 1 or theRow > 2
double	Value (int theRow, int theCol)
	Returns the coefficient of range (ttheheRow, theCol) Raises OutOfRange if theRow < 1 or theRow > 2 or theCol < 1 or theCol > 2
bool	IsSingular ()
	Returns true if this matrix is singular (and therefore, cannot be inverted). The Gauss LU decomposition is used to invert the matrix so the matrix is considered as singular if the largest pivot found is lower or equal to Resolution from gp.
void	Add (GMat2d Other)
GMat2d	Added (GMat2d theOther)
void	Divide (double theScalar)
GMat2d	Divided (double theScalar)
	Divides all the coefficients of the matrix by a scalar.
void	Invert ()
GMat2d	Inverted ()
	Inverses the matrix and raises exception if the matrix is singular.
GMat2d	Multiplied (GMat2d theOther)
void	Multiply (GMat2d theOther)
	Computes the product of two matrices <me> * <theOther>
void	PreMultiply (GMat2d theOther)
	Modifies this matrix by premultiplying it by the matrix Other <me> = theOther * <me>.
GMat2d	Multiplied (double theScalar)
void	Multiply (double theScalar)
	Multiplies all the coefficients of the matrix by a scalar.
void	Power (int theN)
GMat2d	Powered (int theN)
	computes <me> = <me> * <me> * .......* <me>, theN time. if theN = 0 <me> = Identity if theN < 0 <me> = <me>.Invert() *...........* <me>.Invert(). If theN < 0 an exception can be raised if the matrix is not inversible
void	Subtract (GMat2d theOther)
GMat2d	Subtracted (GMat2d theOther)
	Computes for each coefficient of the matrix :<code> &lt;me&gt;.Coef(i,j) - &lt;theOther&gt;.Coef(i,j)</code>
void	Transpose ()
GMat2d	Transposed ()
	Transposes the matrix. A(j, i) -> A (i, j)

详细描述

Describes a two column, two row matrix. This sort of object is used in various vectorial or matrix computations.

成员函数说明

Added()

GMat2d AnyCAD.Foundation.GMat2d.Added

(

GMat2d

theOther

)

Computes the sum of this matrix and the matrix theOther.for each coefficient of the matrix :<code> &lt;me&gt;.Coef(i,j) + &lt;theOther&gt;.Coef(i,j)</code> Note: - operator += assigns the result to this matrix, while - operator + creates a new one.

SetDiagonal()

void AnyCAD.Foundation.GMat2d.SetDiagonal	(	double	theX1,
		double	theX2 )

Modifies the main diagonal of the matrix.<code> &lt;me&gt;.Value (1, 1) = theX1 &lt;me&gt;.Value (2, 2) = theX2</code> The other coefficients of the matrix are not modified.