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From "Martin Desruisseaux (JIRA)" <>
Subject [jira] [Updated] (SIS-339) Feature attribute should verify the CRS of geometric value
Date Tue, 03 Oct 2017 12:33:00 GMT


Martin Desruisseaux updated SIS-339:
    Affects Version/s: 0.8
        Fix Version/s: 1.0

> Feature attribute should verify the CRS of geometric value
> ----------------------------------------------------------
>                 Key: SIS-339
>                 URL:
>             Project: Spatial Information Systems
>          Issue Type: Improvement
>          Components: Features
>    Affects Versions: 0.7, 0.8
>            Reporter: Martin Desruisseaux
>            Priority: Minor
>             Fix For: 1.0
> In the {{org.apache.sis.feature}} package, a {{DefaultFeature}} can contains an attribute
which itself contains a characteristic having the {{AttributeConvention.CRS_CHARACTERISTIC}}
name. The value of that characteristic is the Coordinate Reference System (CRS) of the geometry
that this attribute can contains. However there is currently no verification that a geometry
given to that attribute has the expected CRS. We should add a verification mechanism, compatible
with both JTS and ESRI API. This may require Java reflection code, since those two libraries
are optional.
> One open question is where to store the CRS information in the geometry object. JTS has
a SRID property, but it is only an {{int}} type. It could be decided that the integer value
is the EPSG code, but this is an arbitrary (while common) decision. Alternatively we could
use the JTS user object for storing the full {{CoordinateReferenceSystem}} object, but this
is another arbitrary decision.

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