[Geoserver-devel] [JIRA] (GEOS-8893) WCS 2.0 subsetting may return smaller images than expected by the standard

[_Failed_to_Retrieve]

Andrea Aime created an issue

GeoServer / GEOS-8893

WCS 2.0 subsetting may return smaller images than expected by the standard

Issue Type:	Bug
Assignee:	Unassigned
Attachments:	Selezione_340.png
Components:	WCS
Created:	14/Aug/18 5:10 PM
Priority:	Medium
Reporter:	Andrea Aime

This happens over sparse image mosaics that are not fully covering their bounding box. By specification, the returned area must be the intersection between the requested area, and the bounds declared in DescribeCoverage. However, if the mosaic is sparse the requested area might intersect only a subset of the images and leave a empty data area on a side, in this case the mosaic won’t return pixels in that portion, and the WCS machinery won’t pad it either, returning less data than expected. In the picture: In blue, requested area In red, area currently returned In salmon, area that GeoServer should be returning by specification

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