bool GeneralMatrix::CutIn2_Across(GeneralMatrix& Upper,GeneralMatrix& Lower,int iRow)
{
int i,j;
if (nCol()==0)
{
Upper.ReSize(0,0);
Lower.ReSize(0,0);
return TRUE;
}
if(iRow>nRow()||iRow<0) return FALSE;
if(!Upper.ReSize(iRow,nCol(),ERRORVAL))
return FALSE;
if(!Lower.ReSize(nRow()-iRow,nCol(),ERRORVAL))
return FALSE;
for(i=0;i<iRow;i++)
for(j=0;j<nCol();j++)
Upper[i][j] = GetElem(i,j);
for(i=0;i<Lower.nRow();i++)
for(j=0;j<nCol();j++)
Lower[i][j] = GetElem(i+iRow,j);
return TRUE;
}
bool GeneralMatrix::CutIn2_Vertical(GeneralMatrix& Left,GeneralMatrix& Right,int iCol)
{
int i,j;
if (nCol()==0)
{
Left.ReSize(0,0);
Right.ReSize(0,0);
return TRUE;
}
if(iCol>nCol()||iCol<0) return FALSE;
if(!Left.ReSize(nRow(),iCol,ERRORVAL))
return FALSE;
if(!Right.ReSize(nRow(),nCol()-iCol,ERRORVAL))
return FALSE;
for(i=0;i<nRow();i++)
for(j=0;j<iCol;j++)
Left[i][j] = GetElem(i,j);
for(i=0;i<nRow();i++)
for(j=0;j<Right.nCol();j++)
Right[i][j] = GetElem(i,j+iCol);
return TRUE;
}
GeneralMatrix GeneralMatrix::GetPart(int left,int top,int bottom,int right) const
{
int i,j;
GeneralMatrix result;
if(left>right||top>bottom||right>=nCol()||bottom>=nRow()||left<0||top<0||right<0||bottom<0) return result;
if(!result.ReSize(bottom-top+1,right-left+1,ERRORVAL))
return result;
for(i=0;i<result.nRow();i++)
for(j=0;j<result.nCol();j++)
result[i][j] = GetElem(i+left,j+top);
return result;
}