>From which file from JTS did you extract the test ? I haven't seen the geometries visually, did you ? The default precision model is FLOATING (double), right, but for XML tests the precision model can be specified with the <precisionModel> tag.
--strk; On Mon, Jun 12, 2006 at 03:43:36PM -0500, Howard Butler wrote: > According to the JTS Test builder the results of this union should be > as follows: > > A > -------------------------- > POLYGON ((601289.2369585614651442 4621930.3517169132828712, > 601296.6117308996617794 4621943.1251973006874323, > 601331.2527470423374325 4621943.1251973006874323, > 601348.5732551137916744 4621913.1251973006874323, > 601331.2527470423374325 4621883.1251973006874323, > 601296.6117308996617794 4621883.1251973006874323, > 601284.4943894973257557 4621904.1130482675507665, > 601277.1196171591291204 4621891.3395678801462054, > 601242.4786010164534673 4621891.3395678801462054, > 601225.1580929449992254 4621921.3395678801462054, > 601242.4786010164534673 4621951.3395678801462054, > 601244.3377801323076710 4621951.3395678801462054, > 601235.3788347869412974 4621966.8569164043292403, > 601252.6993428583955392 4621996.8569164043292403, > 601287.3403590010711923 4621996.8569164043292403, > 601304.6608670725254342 4621966.8569164043292403, > 601287.3403590010711923 4621936.8569164043292403, > 601285.4811798851005733 4621936.8569164043292403, > 601289.2369585614651442 4621930.3517169132828712)) > > B > -------------------------- > POLYGON ((601289.3684807127574459 4621895.6708746394142509, > 601279.5020359900081530 4621895.4660383407026529, > 601284.4943894973257557 4621904.1130482675507665, > 601289.3684807127574459 4621895.6708746394142509)) > > Result > -------------------------- > POLYGON ((601289.2369585615 4621930.351716913, 601296.6117308997 > 4621943.125197301, 601331.2527470423 4621943.125197301, > 601348.5732551138 4621913.1251973, 601331.2527470423 > 4621883.125197301, 601296.6117308997 4621883.125197301, > 601289.3684807126 4621895.67087464, 601279.5020359906 > 4621895.466038343, 601277.1196171591 4621891.33956788, > 601242.4786010165 4621891.33956788, 601225.158092945 > 4621921.33956788, 601242.4786010165 4621951.339567881, > 601244.3377801323 4621951.339567881, 601235.3788347867 > 4621966.856916403, 601252.6993428584 4621996.856916403, > 601287.3403590011 4621996.856916403, 601304.6608670725 > 4621966.856916403, 601287.3403590011 4621936.856916404, > 601285.4811798851 4621936.856916404, 601289.2369585615 4621930.351716913)) > > GEOS CVS HEAD is currently giving this as a result (using C++ API and > the default precision for the geometry factory... double, right?) > > MULTIPOLYGON (((601289.2369585614651442 4621930.3517169132828712, > 601296.6117308996617794 4621943.1251973006874323, > 601331.2527470423374325 4621943.1251973006874323, > 601348.5732551137916744 4621913.1251973006874323, > 601331.2527470423374325 4621883.1251973006874323, > 601296.6117308996617794 4621883.1251973006874323, > 601284.4943894973257557 4621904.1130482675507665, > 601277.1196171591291204 4621891.3395678801462054, > 601242.4786010164534673 4621891.3395678801462054, > 601225.1580929449992254 4621921.3395678801462054, > 601242.4786010164534673 4621951.3395678801462054, > 601244.3377801323076710 4621951.3395678801462054, > 601235.3788347869412974 4621966.8569164043292403, > 601252.6993428583955392 4621996.8569164043292403, > 601287.3403590010711923 4621996.8569164043292403, > 601304.6608670725254342 4621966.8569164043292403, > 601287.3403590010711923 4621936.8569164043292403, > 601285.4811798851005733 4621936.8569164043292403, > 601289.2369585614651442 4621930.3517169132828712)), > ((601289.3684807127574459 4621895.6708746394142509, > 601279.5020359900081530 4621895.4660383407026529, > 601284.4943894973257557 4621904.1130482675507665, > 601289.3684807127574459 4621895.6708746394142509))) > > Any ideas what might be going on? > > Howard _______________________________________________ geos-devel mailing list geos-devel@geos.refractions.net http://geos.refractions.net/mailman/listinfo/geos-devel
