Copy3DLayerToMatrix

Declaration:	Copy3DLayerToMatrix(InMat: TDouble3DArray; Layer: integer; var TargetMat: TDouble2DArray): integer;
Copies the layer of the three dimensional open array InMat into the matrix TargetMat. The source layer is specified by the property Layer (0-based !). The function returns the following error codes:  0 ... everything is OK -1 ... InMat and TargetMat do not match -2 ... invalid Layer index