Package org.geotools.coverage.processing.operation

Class Add

Object
AbstractOperation
Operation2D
OperationJAI
BaseMathOperationJAI
Add
All Implemented Interfaces:
Serializable, Operation
public class Add extends BaseMathOperationJAI
Create a new coverage as the sum of two source coverages by doing pixel by pixel addition: result[0][0] = source0[0][0] + source1[0][0] ... ... result[i][j] = source0[i][j] + source1[i][j] ... ... result[n-1][m-1] = source0[n-1][m-1] + source1[n-1][m-1]

Make sure coverages have same envelope and same resolution before using this operation.

Name: "Add"
JAI operator: "Add"
Parameters:

Name Class Default value Minimum value Maximum value
"Source0" GridCoverage2D N/A N/A N/A
"Source1" GridCoverage2D N/A N/A N/A
Since:
8.x
See Also:

  • Constructor Details

    • Add

      public Add()
      Constructs a default "Add" operation.

  • Method Details

    • getName

      public String getName()
      Description copied from class: AbstractOperation
      Returns the name of the processing operation. The default implementation returns the AbstractOperation.descriptor code name.
      Specified by:
      getName in interface Operation
      Overrides:
      getName in class AbstractOperation
      Returns:
      The name of the processing operation.

    • deriveRange

      protected NumberRange<? extends Number> deriveRange(NumberRange<? extends Number>[] ranges, OperationJAI.Parameters parameters)
      Returns the expected range of values for the resulting image.
      Overrides:
      deriveRange in class OperationJAI
      Parameters:
      ranges - The range of values from every sources. For unary operations this array has a length of 1. For binary operations like "add" and "multiply", this array has a length of 2.
      parameters - Parameters, rendering hints and coordinate reference system to use.
      Returns:
      The range of values to use in the destination image, or null if unknow.

    • handleJAIEXTParams

      protected void handleJAIEXTParams(ParameterBlockImageN parameters, ParameterValueGroup parameters2)
      Description copied from class: OperationJAI
      Extension point for adding to the ImageN ParameterBlockImageN object the parameters defined in the ParameterValueGroup, which can be read by the JAI-EXT operations.

      Notice that if you are using JAI, the new parameters will not be accepted by the ParameterBlockImageN instance.

      Overrides:
      handleJAIEXTParams in class OperationJAI
      Parameters:
      parameters - ParameterBlockImageN instance used by the current JAI-EXT/JAI operation
      parameters2 - ParameterValueGroup instance containing input operation parameters

    • getProperties

      protected Map<String,?> getProperties(RenderedImage data, CoordinateReferenceSystem crs, InternationalString name, MathTransform gridToCRS, GridCoverage2D[] sources, OperationJAI.Parameters parameters)
      Description copied from class: OperationJAI
      Prepares the properties to be given to the coverage created by the deriveGridCoverage method. The default implementation returns null.
      Overrides:
      getProperties in class OperationJAI
      Parameters:
      data - The RenderedImage created by this operation.
      crs - The coordinate reference system assigned to the coverage this OperationJAI will produce.
      name - The name assigned to the coverage this OperationJAI will produce.
      gridToCRS - The transform from grid to crs to be assigned to the coverage this OperationJAI will produce.
      sources - The sources to be assigned to the coverage this OperationJAI will produce.
      parameters - The parameters that were used by this OperationJAI.
      Returns:
      a Map with the properties generated by this OperationJAI or null if we haven't any.