[geos-devel] is this a bug polygon intersection?

jingping xie jingping.xie at jicoux.com
Wed Nov 12 06:33:13 EST 2003


the following attached a test xml that intersects two polygons.

an exception was got:
Microsoft C++ exception: geos::TopologyException @ 0x0012e5e0。

is there a bug in polygon intersection?

xie

2003,11,12


attatched:

"test.xml"

<run>
  <precisionModel scale="1.0" offsetx="0.0" offsety="0.0"/>
<case>
  <desc>AA - simple polygons</desc>
  <a>
    POLYGON(
      (16196.722554 44994.293317, 16200.762720 45002.272645, 16199.651674
45000.050554, 16196.722554 44994.293317, 16184.703060
44971.365375,16182.985990 44968.032238, 16176.622728 44955.406719,
16174.905658 44952.174586, 16167.734363 44938.135009, 16168.744404
44935.003881, 16214.398280 44911.570918, 16230.760953 44943.488229,
16232.478023 44946.821366, 16259.749144 45000.050554, 16278.434912
45036.715060, 16258.739102 45048.330537, 16232.983044 45063.279152,
16231.973003 45062.774131, 16200.762720 45002.272645, 16199.651674
45000.050554, 16196.722554 44994.293317))
  </a>
  <b>
    POLYGON(
      (17000.000000 46000.000000, 17000.000000 45000.000000, 16000.000000
45000.000000, 16000.000000 45000.000000, 17000.000000 46000.000000))
  </b>
<test>
  <op name="intersection" arg1="A" arg2="B">
    POLYGON(
      (50 50, 50 100, 100 100, 100 50, 50 50))
  </op>
</test>
</case>
</run>




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