Martin Desruisseaux created SIS-210:
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Summary: Enforce precedence of EPSG codes over names
Key: SIS-210
URL: https://issues.apache.org/jira/browse/SIS-210
Project: Spatial Information Systems
Issue Type: Sub-task
Components: Referencing
Affects Versions: 0.6
Reporter: Martin Desruisseaux
Priority: Minor
The specification ยง9.3.2 said:
{quote}
If an identifier is provided as an attribute within the <map projection
conversion> object, because it is expected to describe a complete collection of
zone name, method, parameters and parameter values, it shall override any
identifiers given within the map projection method and map projection parameter
objects.
{quote}
However this would require the {{GeodeticObjectParser}} to hold a
{{CoordinateOperationAuthorityFactory}}, which we do not yet implement.
Likewise, EPSG code in {{Parameter}} elements are also supposed to have
precedence over the parameter name. This is not yet implemented in SIS, but may
be less critical since SIS implementation is quite lenient (without introducing
ambiguities) regarding parameter names.
For now, the only place where EPSG codes take precedence over names is when
fetching the {{OperationMethod}} objects, which is the most critical place
where we observed ambiguities in our experience.
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