Martin Desruisseaux created SIS-574:
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Summary: Grid coverage dimensionality reduction
Key: SIS-574
URL: https://issues.apache.org/jira/browse/SIS-574
Project: Spatial Information Systems
Issue Type: Task
Components: Coverage
Reporter: Martin Desruisseaux
Assignee: Martin Desruisseaux
Fix For: 1.4
Provides methods for reducing the number of dimensions of a grid coverage. For
example it should be possible to see a slice of a three-dimensional
{{GridCoverage}} as two-dimensional {{GridCoverage}}.
We introduce a new public class, {{DimensionalityReduction}}, which contains
information about which grid axes to keep ({{select(…)} method) or remove
({{remove(…)} method). Other methods allow to specify which coordinates to use
in the removed axes for making a slice. That {{DimensionalityReduction}} class
contains {{apply(…)}} methods for applying dimensionality reduction on a
{{GridExtent}}, {{GridGeometry}}, {{GridCoverage}}, {{DirectPosition}} among
others, and also a few {{reverse(…)}} methods for "inflating" a {{GridExtent}}
or {{GridGeometry}} to the original number of dimensions. The latter are
necessary for delegating read operations of a slice to the original
{{DataStore}}.
This is part of the [pull request #32|https://github.com/apache/sis/pull/32],
refactored with the introduction of above-cited {{DimensionalityReduction}}
class.
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