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<DIV>All</DIV>
<DIV> </DIV>
<DIV>When I make two polygon booled operation for example union
operation, somtimes one exception happened.</DIV>
<DIV> </DIV>
<DIV>the two polygon is all valid, I think it shouldn't get a excetion if I
union two polygon anyway.</DIV>
<DIV> </DIV>
<DIV>Why it happened and how to solve it?</DIV>
<DIV><BR><BR> </DIV>
<DIV>the following is test.xml written by me:</DIV>
<DIV> </DIV>
<DIV><run><BR> <precisionModel type="FLOATING" />
<BR><case><BR> <desc>A/A-3-2-1: two polygons touching at
multiple points [dim(0){A.A.Bdy.CP = B.A.Bdy.CP}, dim(0){A.A.Bdy.V =
B.A.Bdy.V}]</desc> <BR> <a>POLYGON( (-40489.278096372727
4372.207298020518,-40296.371428571423 4384.328571428571,-40288.871021184132
4292.242313959804,-40473.478571428568 4280.385714285714,-40489.278096372727
4372.207298020518))</a> <BR> <b>POLYGON( (-40539.639285714278
4369.042857142857,-40372.370476402626 4379.553177980468,-40369.146156502444
4148.052935215692,-40519.282142857141 4149.947619047619,-40539.639285714278
4369.042857142857))</b> <BR><test><BR> <op name="union"
arg1="A" arg2="B" arg3="FF2F01212">true</op> <BR>
</test><BR> </case><BR></run></DIV>
<DIV> </DIV>
<DIV>this is the exception message:</DIV>
<DIV> </DIV>
<DIV>Exception: TopologyException: no outgoing dirEdge found
(-40539.6,4369.04,1.7e-3<BR>08)</DIV>
<DIV> </DIV>
<DIV>thanks</DIV>
<DIV>jingping xie</DIV>
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