Vector.GetRow Method

Overload List

#	Signature	Description
1	function GetRow(const Mtx: TMtx; aRow: Integer): TVec;	Copies a row from matrix.
2	function GetRow(const Mtx: TMtx; aRow: Integer; aCol: Integer; Len: Integer): TVec;	Copy the Row-th column elements [Col]..[Col+Len-1] to calling vector.
3	function GetRow(const Mtx: TMtx; aRow: Integer; aCol: Integer; Index: Integer; Len: Integer): TVec;	Copy the Row-th column elements [Col]..[Col+Len-1] to calling vector elements [Index]..[Index+Len-1].

Overload 1: function GetRow(const Mtx: TMtx; aRow: Integer): TVec;

Copies a row from matrix.

#	Name	Type	Description
1	Mtx	TMtx
2	aRow	Integer

Result: stored in self (calling object), returns self for chaining

Remarks:

Copies the Row-th row from Mtx matrix to calling vector. The Vector.Length and Vector.Complex properties of calling vector are adjusted automatically. An exception is raised if condition checking is enabled and Row is greater than Mtx.Rows-1.

Examples

var a: Vector;
    b: Matrix;
begin
    b.SetIt(2,2,False,[1,2,
        3,4]);
    a.GetRow(b,0); // a now contains [1,2]
end;

See Also: Vector.GetCol, Matrix.SetRow

Overload 2: function GetRow(const Mtx: TMtx; aRow: Integer; aCol: Integer; Len: Integer): TVec;

Copy the Row-th column elements [Col]..[Col+Len-1] to calling vector.

#	Name	Type	Description
1	Mtx	TMtx
2	aRow	Integer
3	aCol	Integer
4	Len	Integer	element count

Result: stored in self (calling object), returns self for chaining

Remarks:

The Vector.Length and Vector.Complex properties of calling vector are adjusted automatically. An exception is raised if condition checking is enabled and column array borders are overrun.

Overload 3: function GetRow(const Mtx: TMtx; aRow: Integer; aCol: Integer; Index: Integer; Len: Integer): TVec;

Copy the Row-th column elements [Col]..[Col+Len-1] to calling vector elements [Index]..[Index+Len-1].

#	Name	Type	Description
1	Mtx	TMtx
2	aRow	Integer
3	aCol	Integer
4	Index	Integer	start index
5	Len	Integer	element count

Result: stored in self (calling object), returns self for chaining

Remarks:

The Vector.Complex property of calling vector must be set explicitly. An exception is raised if condition checking is enabled and column array borders are overrun.