Examples of ptolemy.data.MatrixToken

ptolemy.data.MatrixToken
Abstract base class for tokens that contain a 2-D matrix. This class defines methods for type conversion among different matrix tokens. The implementation in this base class just throws an exception. Derived classes should override those methods where the corresponding conversion can be achieved without loss of information. Derived classes should call _elementIsNil() when they encounter a nil token during construction. @author Yuhong Xiong, Steve Neuendorffer, contributor: Christopher Brooks @version $Id: MatrixToken.java,v 1.124 2007/12/07 06:31:36 cxh Exp $ @since Ptolemy II 0.2 @Pt.ProposedRating Yellow (cxh) @Pt.AcceptedRating Red (cxh) nil token code


            // Check the argument lengths.
            for (int i = 0; i < argValues.length; i++) {
                if (_reducedArgs[i]) {
                    if (argValues[i] instanceof MatrixToken) {
                        MatrixToken matrixToken = (MatrixToken) argValues[i];


                        if ((xdim != 0)
                                && (ydim != 0)
                                && ((matrixToken.getRowCount() != ydim) || (matrixToken
                                        .getColumnCount() != xdim))) {
                            throw new IllegalActionException("Argument " + i
                                    + " is a reducible matrixToken that "
                                    + "does not have compatible size!");
                        } else {
                            ydim = matrixToken.getRowCount();
                            xdim = matrixToken.getColumnCount();
                        }
                    } else {
                        throw new IllegalActionException("Argument " + i
                                + " is not an instance of " + "MatrixToken!");
                    }

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        }
        int[] rowsValue = new int[rows.length()];
        for (int i = 0; i < rowsValue.length; i++) {
            rowsValue[i] = ((IntToken) rows.getElement(i)).intValue();
        }
        MatrixToken inputValue = (MatrixToken) input.get(0);
        MatrixToken[][] result = inputValue.split(rowsValue, columnsValue);
        for (int i = 0; i < result.length; i++) {
            for (int j = 0; j < result[i].length; j++) {
                output.send(0, result[i][j]);
            }
        }

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     *  the dot product.
     *  @exception IllegalActionException If the input matrices have
     *  unequal sizes.
     */
    private void _matrixFire() throws IllegalActionException {
        MatrixToken token1 = (MatrixToken) input1.get(0);
        MatrixToken token2 = (MatrixToken) input2.get(0);


        int columnCount1 = token1.getColumnCount();
        int rowCount1 = token1.getRowCount();
        int columnCount2 = token2.getColumnCount();
        int rowCount2 = token2.getRowCount();


        Token element1;
        Token element2;
        Token sum;


        if ((columnCount1 == columnCount2) && (rowCount1 == rowCount2)) {
            sum = token1.getElementAsToken(0, 0).zero();


            for (int i = 0; i < rowCount1; i += 1) {
                for (int j = 0; j < columnCount1; j += 1) {
                    element1 = token1.getElementAsToken(i, j);
                    element2 = token2.getElementAsToken(i, j);
                    sum = sum.add(element1.multiply(element2));
                }
            }


            output.send(0, sum);

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        if (!input.hasToken(0)) {
            return;
        }


        MatrixToken token = (MatrixToken) input.get(0);
        int actualRowCount = token.getRowCount();
        int actualColumnCount = token.getColumnCount();
        boolean enforce = ((BooleanToken) enforceMatrixSize.getToken())
                .booleanValue();


        if (enforce) {
            int rowsValue = ((IntToken) rows.getToken()).intValue();
            int columnsValue = ((IntToken) columns.getToken()).intValue();


            if ((actualRowCount != rowsValue)
                    || (actualColumnCount != columnsValue)) {
                throw new IllegalActionException(this, "The input matrix size "
                        + actualRowCount + "x" + actualColumnCount
                        + " does not match what the actor requires, "
                        + rowsValue + "x" + columnsValue);
            }
        }


        for (int i = 0; i < actualRowCount; i++) {
            for (int j = 0; j < actualColumnCount; j++) {
                output.send(0, token.getElementAsToken(i, j));
            }
        }
    }

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        int columnSpanValue = ((IntToken) columnSpan.getToken()).intValue();
        int rowSpanValue = ((IntToken) rowSpan.getToken()).intValue();


        // FIXME: We are not enforcing that the input is a matrix.
        // How to do this?
        MatrixToken inputValue = (MatrixToken) input.get(0);
        output.send(0, inputValue.crop(rowValue, columnValue, rowSpanValue,
                columnSpanValue));
    }

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