This actor extract a submatrix from an input matrix.
For example, if the input matrix is
<pre>
1 2 3
4 5 6
7 8 9
</pre>
then the parameters <i>row</i> = 1,
<i>column</i> = 0,
<i>rowSpan</i> = 2, and
<i>columnSpan</i> = 1,
yield the following submatrix
<pre>
4
7
</pre>
If the submatrix specified is not entirely
contained by the input matrix, or if the resulting submatrix
is empty, then this actor will throw an exception.
Edward Lee
$Id: SubMatrix.java 70398 2014-10-22 23:44:32Z cxh $
Ptolemy II 6.1
Yellow (eal)
Red (neuendor)
The starting column number. This is an integer that
defaults to 0.
The span of columns. This is an integer that defaults
to 1.
The starting row number. This is an integer that
defaults to 0.
The span of rows. This is an integer that defaults
to 1.