Package ptolemy.domains.sdf.lib

Class MatrixJoin

  • All Implemented Interfaces:
    java.lang.Cloneable, Actor, Executable, FiringsRecordable, Initializable, SequenceActor, TypedActor, Changeable, Debuggable, DebugListener, Derivable, Instantiable, ModelErrorHandler, MoMLExportable, Moveable, Nameable
    public class MatrixJoin
extends SDFTransformer
    This actor joins matrices into a single matrix by tiling. It reads N*M input matrices from the input port, where N is the value of the rows parameter, and M is the value of the columns parameter. The matrices read are arranged left-to-right, top-to-bottom, in a raster scan pattern. For example, if rows = columns = 2, then on each firing, four matrices, A, B, C, D, will be read from the input channel. Assuming A is the first one read, then the output matrix will be a matrix arranged as follows: 
       A B
   C D
    The size of the output depends on the matrices in the top row and left column. That is, in the above examples, the number of columns in the output will equal the sum of the number of columns in A and B. The number of rows will equal the sum of the number of rows in A and C. The matrices are tiled in raster-scan order, first A, then B, then C, and then D. Gaps are zero filled, and overlaps are overwritten, where later matrices in the raster-scan order overwrite earlier matrices. For example, if B has more rows than A, then the bottom rows of B will be overwritten by rows of D.

    Since:
    Ptolemy II 6.1
    Version:
    $Id$
    Author:
    Edward Lee
    Pt.AcceptedRating:
    Red (neuendor)
    Pt.ProposedRating:
    Yellow (eal)