org.geotools.coverage.grid.io

Class ReadResolutionCalculator

Object

ReadResolutionCalculator

public class ReadResolutionCalculator
extends Object

Class that supports readers in computing the proper reading resolution for a given grid geometry

Constructor Summary

Constructors

Constructor and Description
ReadResolutionCalculator(GridGeometry2D requestedGridGeometry, CoordinateReferenceSystem nativeCrs, double[] fullResolution)

Method Summary

Modifier and Type	Method and Description
double[]	computeRequestedResolution(ReferencedEnvelope readBounds) Computes the requested resolution which is going to be used for selecting overviews and or deciding decimation factors on the target coverage.
boolean	isAccurateResolution()
void	setAccurateResolution(boolean accurateResolution)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ReadResolutionCalculator

public ReadResolutionCalculator(GridGeometry2D requestedGridGeometry,
                                CoordinateReferenceSystem nativeCrs,
                                double[] fullResolution)
                         throws FactoryException

Throws:

FactoryException

Method Detail

computeRequestedResolution

public double[] computeRequestedResolution(ReferencedEnvelope readBounds)

Computes the requested resolution which is going to be used for selecting overviews and or deciding decimation factors on the target coverage.

In case the requested envelope is in the same CoordinateReferenceSystem of the coverage we compute the resolution using the requested MathTransform. Notice that it must be a LinearTransform or else we fail.

In case the requested envelope is not in the same CoordinateReferenceSystem of the coverage we

Throws:

DataSourceException - in case something bad happens during reprojections and/or intersections.

isAccurateResolution

public boolean isAccurateResolution()

setAccurateResolution

public void setAccurateResolution(boolean accurateResolution)