Hi Martin,
a little further investigation showed that the comma was being stripped
out before WKTReader got to the String, but it still looks like NaN is
being treated as valid - is this correct?
Thanks for your help!
--john
public void testWktParse() throws ParseException{
String wkt = null;
Geometry geometry = null;
wkt = "POINT (10 10)";
geometry = wktReader.read(wkt);
assertNotNull(geometry);
assertTrue(geometry.isValid());
wkt = "POINT (10, 10)";
try {
geometry = wktReader.read(wkt);
fail("should have seen ParseException");
} catch (ParseException e) {
}
wkt = "POINT (10 NaN)";
geometry = wktReader.read(wkt);
assertNotNull(geometry);
assertFalse("NaN coordinate",geometry.isValid());
}
----- Original Message -----
From: Martin Davis <[email protected]>
Date: Monday, September 21, 2009 6:14 pm
Subject: Re: [jts-devel] Geometry#isValid
> If you're using 1.10 then I'm puzzled by what you're seeing.
>
> Can you post code that exhibits the problem?
>
> John Cartwright wrote:
> > Thanks for the prompt reply and sorry I omitted the version - 1.10.
> >
> > --john
> >
> >
> > Martin Davis wrote:
> >
> >> What version of JTS are you using?
> >>
> >> "POINT(1,2)" should not parse as correct WKT. And for several
> >> versions now isValid() has checked for Coordinates with NaN
> ordinate>> values.
> >>
> >> John Cartwright wrote:
> >>
> >>> Hello All,
> >>>
> >>> I notice that if I create a invalid geometry using a WKT string
> like>>> "POINT(1,2)", the resulting Geometry still returns true on
> a call to
> >>> it's isValid() method. point.getCoordinate.y in this case
> shows NaN.
> >>> Is the isValid procedure supposed to do this? Is there another
> way to
> >>> determine whether a Geometry does not contain NaN or a better
> way to
> >>> protect against invalid WKT strings?
> >>>
> >>> Thanks!
> >>>
> >>> --john
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> _______________________________________________
> >>> jts-devel mailing list
> >>> [email protected]
> >>> http://lists.refractions.net/mailman/listinfo/jts-devel
> >>>
> >>>
> >>>
> > _______________________________________________
> > jts-devel mailing list
> > [email protected]
> > http://lists.refractions.net/mailman/listinfo/jts-devel
> >
> >
>
> --
> Martin Davis
> Senior Technical Architect
> Refractions Research, Inc.
> (250) 383-3022
>
> _______________________________________________
> jts-devel mailing list
> [email protected]
> http://lists.refractions.net/mailman/listinfo/jts-devel
>
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