public IRI.Ham.Algebra.Matrix ReadQuarter(QuarterPart part)
{
int midRow = this.NumberOfRows % 2 == 0 ? this.NumberOfRows / 2 - 1 : this.NumberOfRows / 2;
int midColumn = this.NumberOfColumns % 2 == 0 ? this.NumberOfColumns / 2 - 1 : this.NumberOfColumns / 2;
switch (part)
{
case QuarterPart.UpperLeft:
return(this.ReadRegion(0, 0, midRow, midColumn));
case QuarterPart.UpperRight:
return(this.ReadRegion(0, midColumn + 1, midRow, this.NumberOfColumns - 1));
case QuarterPart.LowerLeft:
return(this.ReadRegion(midRow + 1, 0, this.NumberOfRows - 1, midColumn));
case QuarterPart.LowerRight:
return(this.ReadRegion(midRow + 1, midColumn + 1, this.NumberOfRows - 1, this.NumberOfColumns - 1));
default:
return(null);
}
}
public void SaveQuarter(string fileName, QuarterPart part)
{
int midRow = this.NumberOfRows % 2 == 0 ? this.NumberOfRows / 2 - 1 : this.NumberOfRows / 2;
int midColumn = this.NumberOfColumns % 2 == 0 ? this.NumberOfColumns / 2 - 1 : this.NumberOfColumns / 2;
IRI.Ham.Algebra.Matrix values;
switch (part)
{
case QuarterPart.UpperLeft:
values = this.ReadRegion(0, 0, midRow, midColumn);
SaveAsGRD(fileName,
values,
0 + this.LowerLeftX,
(this.NumberOfRows - values.NumberOfRows) * this.CellSize + this.LowerLeftY,
this.CellSize,
this.NoDataValue);
break;
case QuarterPart.UpperRight:
values = this.ReadRegion(0, midColumn + 1, midRow, this.NumberOfColumns - 1);
SaveAsGRD(fileName,
values,
(this.NumberOfColumns - values.NumberOfColumns) * this.CellSize + this.LowerLeftX,
(this.NumberOfRows - values.NumberOfRows) * this.CellSize + this.LowerLeftY,
this.CellSize,
this.NoDataValue);
break;
case QuarterPart.LowerLeft:
values = this.ReadRegion(midRow + 1, 0, this.NumberOfRows - 1, midColumn);
SaveAsGRD(fileName,
values,
0 + this.LowerLeftX,
0 + this.LowerLeftY,
this.CellSize,
this.NoDataValue);
break;
case QuarterPart.LowerRight:
values = this.ReadRegion(midRow + 1, midColumn + 1, this.NumberOfRows - 1, this.NumberOfColumns - 1);
SaveAsGRD(fileName,
values,
(this.NumberOfColumns - values.NumberOfColumns) * this.CellSize + this.LowerLeftX,
0 + this.LowerLeftY,
this.CellSize,
this.NoDataValue);
break;
default:
throw new NotImplementedException();
}
}
