use of edu.rit.mp.buf.ByteMatrixBuf in project ffx by mjschnie.
the class ByteBuf method colSliceBuffer.
/**
* Create a buffer for one column slice of the given byte matrix. The
* returned buffer encompasses all the rows, and <TT>theColRange</TT> of
* columns, in <TT>theMatrix</TT>. The range's stride may be 1 or greater
* than 1.
*
* @param theMatrix Matrix.
* @param theColRange Range of columns to include.
* @return Buffer.
* @exception NullPointerException (unchecked exception) Thrown if
* <TT>theMatrix</TT> is null or
* <TT>theColRange</TT> is null.
* @exception IndexOutOfBoundsException (unchecked exception) Thrown if
* <TT>theMatrix</TT>'s allocation does not include <TT>theColRange</TT>.
*/
public static ByteBuf colSliceBuffer(byte[][] theMatrix, Range theColRange) {
if (theMatrix == null) {
throw new NullPointerException("ByteBuf.colSliceBuffer(): theMatrix is null");
}
int nr = Arrays.rowLength(theMatrix);
int nc = Arrays.colLength(theMatrix, 0);
if (0 > theColRange.lb() || theColRange.ub() >= nc) {
throw new IndexOutOfBoundsException("ByteBuf.colSliceBuffer(): theMatrix column index range = 0.." + (nc - 1) + ", theColRange = " + theColRange);
}
if (theColRange.stride() == 1) {
return new ByteMatrixBuf_1(theMatrix, new Range(0, nr - 1), theColRange);
} else {
return new ByteMatrixBuf(theMatrix, new Range(0, nr - 1), theColRange);
}
}
use of edu.rit.mp.buf.ByteMatrixBuf in project ffx by mjschnie.
the class ByteBuf method rowSliceBuffer.
/**
* Create a buffer for one row slice of the given byte matrix. The returned
* buffer encompasses <TT>theRowRange</TT> of rows, and all the columns, in
* <TT>theMatrix</TT>. The range's stride may be 1 or greater than 1.
*
* @param theMatrix Matrix.
* @param theRowRange Range of rows to include.
* @return Buffer.
* @exception NullPointerException (unchecked exception) Thrown if
* <TT>theMatrix</TT> is null or
* <TT>theRowRange</TT> is null.
* @exception IndexOutOfBoundsException (unchecked exception) Thrown if
* <TT>theMatrix</TT>'s allocation does not include <TT>theRowRange</TT>.
*/
public static ByteBuf rowSliceBuffer(byte[][] theMatrix, Range theRowRange) {
if (theMatrix == null) {
throw new NullPointerException("ByteBuf.rowSliceBuffer(): theMatrix is null");
}
int nr = Arrays.rowLength(theMatrix);
if (0 > theRowRange.lb() || theRowRange.ub() >= nr) {
throw new IndexOutOfBoundsException("ByteBuf.rowSliceBuffer(): theMatrix row index range = 0.." + (nr - 1) + ", theRowRange = " + theRowRange);
}
int nc = Arrays.colLength(theMatrix, theRowRange.lb());
if (theRowRange.stride() == 1) {
return new ByteMatrixBuf_1(theMatrix, theRowRange, new Range(0, nc - 1));
} else {
return new ByteMatrixBuf(theMatrix, theRowRange, new Range(0, nc - 1));
}
}
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