public LongMatrix2D viewStrides(final int _rowStride, final int _columnStride) {
if (_rowStride <= 0 || _columnStride <= 0)
throw new IndexOutOfBoundsException("illegal stride");
WrapperLongMatrix2D view =
new WrapperLongMatrix2D(this) {
/** */
private static final long serialVersionUID = 1L;
public synchronized long getQuick(int row, int column) {
return content.getQuick(_rowStride * row, _columnStride * column);
}
public synchronized void setQuick(int row, int column, long value) {
content.setQuick(_rowStride * row, _columnStride * column, value);
}
public synchronized long get(int row, int column) {
return content.get(_rowStride * row, _columnStride * column);
}
public synchronized void set(int row, int column, long value) {
content.set(_rowStride * row, _columnStride * column, value);
}
};
if (rows != 0) view.rows = (rows - 1) / _rowStride + 1;
if (columns != 0) view.columns = (columns - 1) / _columnStride + 1;
view.isNoView = false;
return view;
}
public LongMatrix2D viewPart(final int row, final int column, int height, int width) {
checkBox(row, column, height, width);
WrapperLongMatrix2D view =
new WrapperLongMatrix2D(this) {
/** */
private static final long serialVersionUID = 1L;
public synchronized long getQuick(int i, int j) {
return content.getQuick(row + i, column + j);
}
public synchronized void setQuick(int i, int j, long value) {
content.setQuick(row + i, column + j, value);
}
public synchronized long get(int i, int j) {
return content.get(row + i, column + j);
}
public synchronized void set(int i, int j, long value) {
content.set(row + i, column + j, value);
}
};
view.rows = height;
view.columns = width;
view.isNoView = false;
return view;
}
public LongMatrix2D viewDice() {
WrapperLongMatrix2D view =
new WrapperLongMatrix2D(this) {
/** */
private static final long serialVersionUID = 1L;
public synchronized long getQuick(int row, int column) {
return content.getQuick(column, row);
}
public synchronized void setQuick(int row, int column, long value) {
content.setQuick(column, row, value);
}
public synchronized long get(int row, int column) {
return content.get(column, row);
}
public synchronized void set(int row, int column, long value) {
content.set(column, row, value);
}
};
view.rows = columns;
view.columns = rows;
view.isNoView = false;
return view;
}
public LongMatrix2D viewSelection(int[] rowIndexes, int[] columnIndexes) {
// check for "all"
if (rowIndexes == null) {
rowIndexes = new int[rows];
for (int i = rows; --i >= 0; ) rowIndexes[i] = i;
}
if (columnIndexes == null) {
columnIndexes = new int[columns];
for (int i = columns; --i >= 0; ) columnIndexes[i] = i;
}
checkRowIndexes(rowIndexes);
checkColumnIndexes(columnIndexes);
final int[] rix = rowIndexes;
final int[] cix = columnIndexes;
WrapperLongMatrix2D view =
new WrapperLongMatrix2D(this) {
/** */
private static final long serialVersionUID = 1L;
public synchronized long getQuick(int i, int j) {
return content.getQuick(rix[i], cix[j]);
}
public synchronized void setQuick(int i, int j, long value) {
content.setQuick(rix[i], cix[j], value);
}
public synchronized long get(int i, int j) {
return content.get(rix[i], cix[j]);
}
public synchronized void set(int i, int j, long value) {
content.set(rix[i], cix[j], value);
}
};
view.rows = rowIndexes.length;
view.columns = columnIndexes.length;
view.isNoView = false;
return view;
}