Package org.geotools.process
Interface RenderingProcess
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- All Superinterfaces:
Process
public interface RenderingProcess extends Process
An interface to be implemented by processes meant to be integrated as feature collection/grid coverage transformations in a rendering chain.The method provide information about how the data is altered so that the renderer can query the appropriate part of the input data that will feed the process
- Author:
- Andrea Aime - GeoSolutions
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Method Summary
All Methods Instance Methods Abstract Methods Default Methods Modifier and Type Method Description default GeneralParameterValue[]
customizeReadParams(Map<String,Object> input, GridCoverageReader reader, GeneralParameterValue[] params)
Allows the transformation to customize the read parameters (aslGridGeometry
invertGridGeometry(Map<String,Object> input, Query targetQuery, GridGeometry targetGridGeometry)
Given a target query and a target grid geometry returns the grid geometry to be used to read the input data of the process involved in rendering.Query
invertQuery(Map<String,Object> input, Query targetQuery, GridGeometry gridGeometry)
Given a target query and a target grid geometry returns the query to be used to read the input data of the process involved in rendering.
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Method Detail
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invertQuery
Query invertQuery(Map<String,Object> input, Query targetQuery, GridGeometry gridGeometry) throws ProcessException
Given a target query and a target grid geometry returns the query to be used to read the input data of the process involved in rendering. This method will be called only if the input data is a feature collection.- Parameters:
input
- The process inputstargetQuery
- The query against the transformation outputsgridGeometry
- The grid geometry desired for the outputs of the transformation- Returns:
- The transformed query, or null if no inversion is possible/meaningful
- Throws:
ProcessException
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invertGridGeometry
GridGeometry invertGridGeometry(Map<String,Object> input, Query targetQuery, GridGeometry targetGridGeometry) throws ProcessException
Given a target query and a target grid geometry returns the grid geometry to be used to read the input data of the process involved in rendering. This method will be called only if the input data is a grid coverage or a grid coverage reader- Parameters:
input
- The process inputstargetQuery
- The query against the transformation outputstargetGridGeometry
- The grid geometry desired for the outputs of the transformation- Returns:
- The transformed query, or null if no inversion is possible/meaningful
- Throws:
ProcessException
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customizeReadParams
default GeneralParameterValue[] customizeReadParams(Map<String,Object> input, GridCoverageReader reader, GeneralParameterValue[] params)
Allows the transformation to customize the read parameters (asl- Parameters:
input
- The process inputsreader
- The reader involvedparams
- The current parameters- Returns:
- The original parameters, or a customized version of them
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