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From "Martin Desruisseaux (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SIS-165) Add an AngleRange class for latitude/longitude ranges
Date Tue, 11 Mar 2014 09:58:42 GMT
Martin Desruisseaux created SIS-165:
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             Summary: Add an AngleRange class for latitude/longitude ranges
                 Key: SIS-165
                 URL: https://issues.apache.org/jira/browse/SIS-165
             Project: Spatial Information Systems
          Issue Type: Improvement
          Components: Referencing, Utilities
            Reporter: Martin Desruisseaux
            Assignee: Martin Desruisseaux
            Priority: Minor
             Fix For: 0.5


The {{Range}} class has a {{NumberRange}} subclass for the special case of {{Number}} values,
which itself has a {{MeasurementRange}} subclass for numbers with a unit of measurement. We
would like an {{AngleRange}} subclass of {{Range}} for {{Angle}} values with units fixed to
degrees (the units used by the existing {{Angle}}). We can not use {{NumberRange}} for this
purpose because {{Angle}} does not extend {{Number}} (we could modify {{Angle}} class, but
extending {{Number}} has proven to be source of confusion in the past).

More specifically the work to do would be:

* Creates class {{AngleRange}} extends {{Range}}.
* Override {{unit()}} with a hard-coded {{NonSI.DEGREE_ANGLE}} return value.
* Consider making the {{unit()}} method a public one. If this change is applied, search for
{{Measurement.unit()}} usage and see if we should replace them by {{Range.unit()}}.
* Add {{createLongitude}} and {{createLatitude}} convenience methods in {{ParameterBuilder}}.
* Modify the {{DefaultParameterDescriptorGroup}}, {{ParameterBuilder}} and {{ParameterFormat}}
examples in javadoc for making use of angular values in _Latitude of natural origin_ and _Longitude
of natural origin_ parameters.




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