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ObjectAbstractOperation
Operation2D
Resample
public class Resample
Resample a grid coverage using a different grid geometry. This operation provides the following functionality:
Geotools extension:
The "Resample"
operation use the default
CoordinateOperationFactory
for creating a
transformation from the source to the destination coordinate reference systems.
If a custom factory is desired, it may be supplied as a rendering hint with the
Hints.COORDINATE_OPERATION_FACTORY
key. Rendering
hints can be supplied to org.geotools.coverage.processing.DefaultProcessor
at construction time.
Name: "Resample"
JAI operator: "Affine"
or "Warp"
Parameters:
Name | Class | Default value | Minimum value | Maximum value |
---|---|---|---|---|
"Source" |
GridCoverage2D |
N/A | N/A | N/A |
"InterpolationType" |
CharSequence |
"NearestNeighbor" | N/A | N/A |
"CoordinateReferenceSystem" |
CoordinateReferenceSystem |
Same as source grid coverage | N/A | N/A |
"GridGeometry" |
GridGeometry |
(automatic) | N/A | N/A |
"BackgroundValues" |
double[] |
N/A | N/A | N/A |
Operations.resample(org.opengis.coverage.Coverage, org.opengis.referencing.crs.CoordinateReferenceSystem)
,
WarpDescriptor
,
Serialized FormField Summary | |
---|---|
static ParameterDescriptor<double[]> |
BACKGROUND_VALUES
The parameter descriptor for the BackgroundValues. |
static ParameterDescriptor<CoordinateReferenceSystem> |
COORDINATE_REFERENCE_SYSTEM
The parameter descriptor for the coordinate reference system. |
static String |
GRID_DIMENSIONS
Key for the warp grid dimensions, available only if a WarpGrid is being used. |
static ParameterDescriptor<GridGeometry> |
GRID_GEOMETRY
The parameter descriptor for the grid geometry. |
static ParameterDescriptor<Object> |
INTERPOLATION_TYPE
The parameter descriptor for the interpolation type. |
static String |
OPERATION
Key for the reprojection operation being used (null if no operation is performed) |
static String |
WARP_TYPE
Key for the warp operation Class , null otherwise |
Fields inherited from class Operation2D |
---|
PRIMARY_SOURCE_INDEX, SOURCE_0 |
Fields inherited from class AbstractOperation |
---|
descriptor |
Constructor Summary | |
---|---|
Resample()
Constructs a "Resample" operation. |
Method Summary | |
---|---|
static GridGeometry |
computeGridGeometry(GridCoverage source,
Envelope target)
Computes a grid geometry from a source coverage and a target envelope. |
Coverage |
doOperation(ParameterValueGroup parameters,
Hints hints)
Resamples a grid coverage. |
Methods inherited from class Operation2D |
---|
computeOnGeophysicsValues, extractSources, getFactory |
Methods inherited from class AbstractOperation |
---|
equals, getDescription, getDocURL, getName, getNumSources, getParameters, getVendor, getVersion, hashCode, toString |
Methods inherited from class Object |
---|
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
---|
public static final ParameterDescriptor<Object> INTERPOLATION_TYPE
public static final ParameterDescriptor<CoordinateReferenceSystem> COORDINATE_REFERENCE_SYSTEM
public static final ParameterDescriptor<GridGeometry> GRID_GEOMETRY
public static final ParameterDescriptor<double[]> BACKGROUND_VALUES
public static final String OPERATION
public static final String WARP_TYPE
Class
, null otherwise
public static final String GRID_DIMENSIONS
Dimension
object
Constructor Detail |
---|
public Resample()
"Resample"
operation.
Method Detail |
---|
public Coverage doOperation(ParameterValueGroup parameters, Hints hints)
org.geotools.coverage.processing.DefaultProcessor
for the "Resample"
operation.
doOperation
in class AbstractOperation
parameters
- List of name value pairs for the parameters required for the operation.hints
- A set of rendering hints, or null
if none. The DefaultProcessor
may provides hints for the following keys: Hints.COORDINATE_OPERATION_FACTORY
and Hints.JAI_INSTANCE
.
public static GridGeometry computeGridGeometry(GridCoverage source, Envelope target) throws TransformException
GRID_GEOMETRY
argument of a "resample"
operation
from an envelope. The target envelope may contains a different coordinate reference system,
in which case a reprojection will be performed.
source
- The source coverage.target
- The target envelope, including a possibly different coordinate reference system.
TransformException
- If a transformation was required and failed.
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