Package nl.b3p.tailormap.api.geotools

Class TransformationUtil

java.lang.Object

nl.b3p.tailormap.api.geotools.TransformationUtil

public class TransformationUtil
extends Object

Method Summary

Modifier and Type	Method	Description
static org.geotools.api.referencing.operation.MathTransform	getTransformationToApplication(@NotNull Application application, @NotNull org.geotools.api.data.SimpleFeatureSource simpleFeatureSource)	Determine whether we need to transform geometries to the application CRS.
static org.geotools.api.referencing.operation.MathTransform	getTransformationToDataSource(@NotNull Application application, @NotNull org.geotools.api.data.SimpleFeatureSource simpleFeatureSource)	Determine whether we need to transform geometry to data source crs.

Methods inherited from class java.lang.Object

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

Method Detail

getTransformationToApplication

public static org.geotools.api.referencing.operation.MathTransform getTransformationToApplication(@NotNull
                                                                                                  @NotNull Application application,
                                                                                                  @NotNull
                                                                                                  @NotNull org.geotools.api.data.SimpleFeatureSource simpleFeatureSource)
                                                                                           throws org.geotools.api.referencing.FactoryException

Determine whether we need to transform geometries to the application CRS. Note that this uses the "default geometry" attribute of the feature source, in cases where a feature source has multiple geometry attributes (with possibly different CRSs) or heterogenous CRSs across a single geometry attribute this may not be accurate.

Parameters:

application - the referenced application

simpleFeatureSource - the feature source used in the application

Returns:

null when no transform is required and a valid transform otherwise

Throws:

org.geotools.api.referencing.FactoryException - when the CRS cannot be decoded

getTransformationToDataSource

public static org.geotools.api.referencing.operation.MathTransform getTransformationToDataSource(@NotNull
                                                                                                 @NotNull Application application,
                                                                                                 @NotNull
                                                                                                 @NotNull org.geotools.api.data.SimpleFeatureSource simpleFeatureSource)
                                                                                          throws org.geotools.api.referencing.FactoryException

Determine whether we need to transform geometry to data source crs. Note that this uses the "default geometry" attribute of the feature source, in cases where a feature source has multiple geometry attributes (with possibly different CRSs) or heterogenous CRSs across a single geometry attribute this may not be accurate.

Parameters:

application - the referenced application

simpleFeatureSource - the feature source used in the application

Returns:

null when no transform is required and a valid transform otherwise

Throws:

org.geotools.api.referencing.FactoryException - when the CRS cannot be decoded