GeneralEnvelope should accepts envelopes crossing the antimeridian
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Key: GEOT-1724
URL: http://jira.codehaus.org/browse/GEOT-1724
Project: GeoTools
Issue Type: Improvement
Components: core referencing
Affects Versions: 2.5-M0
Reporter: Martin Desruisseaux
Assignee: Martin Desruisseaux
Priority: Minor
{{GeneralEnvelope.setRange(int, double, double)}} currently contains this code:
{code:java}
if (minimum > maximum) {
// Make an empty envelope (min == max)
// while keeping it legal (min <= max).
minimum = maximum = 0.5 * (minimum + maximum);
}
{code}
This approach has two problems:
* It is a cause of bug that may be long to identify, since the coordinates are
silently modified. An exception, or at the very least a warning could save
developper time.
* WCS authorizes (with special treatment) cases where {{maximum < minimum}} at
least in the longitude case. They are envelope crossing the antimeridian.
We should accept {{maximum < minimum}} only for axis declared with
{{RangeMeaning.WRAPAROUND}}. For other axis, we need to decide if we should
throws an exception, reorder the minimum and maximum or just log a warning.
Every {{GeneralEnvelope}} methods like {{contains}} will need to be updated for
taking the antimeridian crossing case in account.
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