Vector.GetCol Method

Overload List

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

Overload 1: function GetCol(const Mtx: TMtx; aCol: Integer): TVec;

Copies a column from matrix.

#	Name	Type	Description
1	Mtx	TMtx
2	aCol	Integer

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

Remarks:

Copies the Col-th column 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 Col is greater than Mtx.Cols-1.

Examples

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

See Also: Vector.GetRow, Matrix.SetCol

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

Copy the Col-th column elements [Row]..[Row+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 GetCol(const Mtx: TMtx; aRow: Integer; aCol: Integer; Index: Integer; Len: Integer): TVec;

Copy the Col-th column elements [Row]..[Row+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.