Thanks guys.

mvn worked fine with Java 1.5, Eclipse still not happy with Java 1.5
Compatibility mode, but builds the project allright.

I commented the JIRA task,  note that the WKT being used in the test
is ambiguous, so maybe there is a simple iterator thing lurking
somewhere?

Rob

On Tue, Nov 11, 2008 at 8:36 PM, Martin Desruisseaux
<[EMAIL PROTECTED]> wrote:
> Hello all
>
> The issue is reported here:
>
>    http://jira.codehaus.org/browse/GEOT-1917
>
> I don't think it is related to iteration order, since I'm usually careful 
> about
> avoiding iteration-order dependant code with HashMap/Set. Last time I looked 
> at
> this issue, I had the feeling that it may be related to the way floating point
> numerical values are computed. Floating point arithmetic are not as 
> determinist
> than integer arithmetic - this is one of the few areas in the Java language
> where the behavior is allowed to change slightly on different platforms. When
> used in non-linear equations - especially in formulas like Math.exp(double), 
> and
> the projection code do have this kind of expression - a very small departure 
> may
> be amplified.
>
> I'm right now working on projections in geotidy. I'm adding tests that the
> referencing module never had before. I'm especially stretching right now 
> (today)
> what is happening close to poles where small departures get big 
> amplifications.
> As a benefit to the Geotools community, I think that we will get projections
> that are more "mathematically smooth" (I means less discontinuities in the 
> form
> of "if" statement or ProjectionException).
>
> As for the backport to Java 5, I commit myself to help with that.
>
>        Martin
>

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