Comments by mengfei358

mengfei358 26-Sep-12 9:08am View

ok ，if I can find out the reason.i wouldnt ask the question.anyway,thank you.

mengfei358 26-Sep-12 8:52am View

yes ，so thats what I want to know,after debug ,I cant find out the reason

mengfei358 26-Sep-12 8:30am View

CRect rc;
rc.UnionRect(m_DMBR,entry->GetInterMBR());
CString str;
str.Format("leaf:%d,%d,entry:%d,%d,m_DMBR:%d,%d",rc.BottomRight(),entry->GetInterMBR().BottomRight(),m_DMBR.BottomRight());
AfxMessageBox(str);
using this to test.and get value as this:leaf:0,0 entry:53,550,m_DMBR:-858993460,-858993460,

mengfei358 26-Sep-12 8:07am View

the l, t, r, and b values of each of the rectangle is known.

mengfei358 26-Sep-12 4:51am View

sorry ,Maybe I dont understand whats your meaning ." the actual values of m_DMBR and childNode->GetDMBR() at this point?"?

mengfei358 26-Sep-12 4:24am View

M_DMBR is an object of CRect .and initialise it is null. and childNode->GetDMBR() get the value of one node's MBR.

mengfei358 25-Sep-12 20:31pm View

Rc is an object of CRect, It's empty,and after union Rc1 (35,35,112,112).this is not my question ,my question is why
CRect rc;
rc.UnionRect(m_DMBR,childNode->GetDMBR());
rc is empty after union .

mengfei358 25-Sep-12 10:04am View

CRect rt =CRect(35,35,112,112);
CRect rc,rc1;
rc1.UnionRect(rc,rt);
In this code ,after using UnionRect,rc1 is not empty.

mengfei358 23-Sep-12 21:10pm View

R-Tree is an algorithm，GIS is short form of Geographic Information System,and MBR is Minimum Bounding Rectangle

Comments by mengfei358 (Top 9 by date)