<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=us-ascii">
<STYLE type=text/css>DIV {
MARGIN: 0px
}
</STYLE>
<META content="MSHTML 6.00.6000.16544" name=GENERATOR></HEAD>
<BODY>
<DIV dir=ltr align=left><SPAN class=388000620-29112007><FONT face=Arial
color=#0000ff size=2>There is an error in MapGuide with multipolygon
selection</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=388000620-29112007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=388000620-29112007><FONT face=Arial
color=#0000ff size=2><A
href="http://trac.osgeo.org/mapguide/ticket/313">http://trac.osgeo.org/mapguide/ticket/313</A></FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=388000620-29112007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=388000620-29112007><FONT face=Arial
color=#0000ff size=2>but I don't believe that this is what you are seeing, or at
least not the only reason...</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=388000620-29112007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=388000620-29112007><FONT face=Arial
color=#0000ff size=2>I think that the primary problem that you are seeing is
because MySQL does not perform geometric operations on geometries, just their
bounding boxes. My understanding is that someone is working on this for a
future MySQL release, but it's a ways out yet?</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=388000620-29112007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=388000620-29112007><FONT face=Arial
color=#0000ff size=2>Jason</FONT></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> ary sucaya<BR><B>Subject:</B>
[mapguide-users] Insert Order In MySql Affect to the
MapGuideSelection?<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif">
<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif">I'm not
sure either this is a problem of MySql or MGOS 1.2. I created some
multipolygon in MySql 5.0.45 and I found a problem regarding to
interactive selection:</DIV>
<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif">Some
of my multipolygon selected when i clicked my mouse outside it's
boundary. Furthermore, MGOS give me a wrong selection result, for example, if i
do click on a small multipolygon A then the big multipolygon B would
be selected. It's look like the biggest part of small mpolygon A
occupied by the big mpolygon B. I made a little bit experiment on this
issue. I change the order of records insertion meaning that i insert the
smallest multipolygon first and bigger multipolygon subsequently and the problem
is gone. This problem doesn't happen if i store the data in sdf format instead
of MySql. What's wrong with MySql (or probably MGOS
1.2)?</DIV></DIV></BODY></HTML>