gvsig-raster / org.gvsig.raster / trunk / org.gvsig.raster / org.gvsig.raster.lib / org.gvsig.raster.lib.impl / src / main / java / org / gvsig / raster / impl / provider / RasterProvider.java @ 1791
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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package org.gvsig.raster.impl.provider; |
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import java.awt.Image; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.Point2D; |
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import org.cresques.cts.IProjection; |
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import org.gvsig.compat.net.ICancellable; |
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import org.gvsig.fmap.dal.coverage.dataset.Buffer; |
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import org.gvsig.fmap.dal.coverage.datastruct.Extent; |
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import org.gvsig.fmap.dal.coverage.datastruct.GeoPointList; |
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import org.gvsig.fmap.dal.coverage.datastruct.NoData; |
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import org.gvsig.fmap.dal.coverage.exception.BandAccessException; |
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import org.gvsig.fmap.dal.coverage.exception.CloneException; |
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import org.gvsig.fmap.dal.coverage.exception.FileNotOpenException; |
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import org.gvsig.fmap.dal.coverage.exception.InfoByPointException; |
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import org.gvsig.fmap.dal.coverage.exception.InvalidSetViewException; |
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import org.gvsig.fmap.dal.coverage.exception.InvalidSourceException; |
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import org.gvsig.fmap.dal.coverage.exception.ProcessInterruptedException; |
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import org.gvsig.fmap.dal.coverage.exception.RasterDriverException; |
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import org.gvsig.fmap.dal.coverage.exception.RemoteServiceException; |
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import org.gvsig.fmap.dal.coverage.exception.RmfSerializerException; |
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import org.gvsig.fmap.dal.coverage.store.RasterQuery; |
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import org.gvsig.fmap.dal.coverage.store.parameter.RasterDataParameters; |
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import org.gvsig.fmap.dal.coverage.store.props.ColorInterpretation; |
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import org.gvsig.fmap.dal.coverage.store.props.ColorTable; |
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import org.gvsig.fmap.dal.coverage.store.props.Histogramable; |
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import org.gvsig.fmap.dal.coverage.store.props.Metadata; |
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import org.gvsig.fmap.dal.coverage.store.props.Statistics; |
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import org.gvsig.fmap.dal.coverage.store.props.TimeSeries; |
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import org.gvsig.fmap.dal.coverage.store.props.Transparency; |
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import org.gvsig.fmap.dal.raster.spi.CoverageStoreProvider; |
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import org.gvsig.raster.cache.tile.provider.TileServer; |
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/**
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* Interfaz que deben implementar cualquier fuente de datos raster. Estas pueden estar
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* compuestas por N datasets. B?sicamente hay dos fuentes que deben implementar este interfaz,
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* MultiRasterDataset y CompositeDataset. La primera es un dataset compuesto por varios ficheros
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* con el mismo Extent de N bandas cada uno. MultiRasterDataset proporciona una encapsulaci?n al acceso
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* a datos de todos ellos. CompositeDataset es un dataset compuesto de N MultiRasterDatasets cuya extensi?n
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* es continua formando un Grid de datasets con continuidad espacial. IRasterDataSource proporciona
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* una visi?n de acceso a datos com?n para ambos.
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*
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*
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*/
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public interface RasterProvider extends CoverageStoreProvider, Histogramable { |
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/**
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* Gets a list of sizes. If the provider doesn't have files it will return null.
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* If the provider has one file it will return an array of one element with the
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* size of this file. If the provider contains others with one file each one.
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* @return
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*/
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public long[] getFileSizeByProvider(); |
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/**
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* Gets a list of file names or URI. Each element of this array is the name of a
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* provider
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* @return
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*/
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public String[] getURIByProvider(); |
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/**
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* Gets the URI of the first provider.
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* @return String
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* File name or URI
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*/
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public String getURIOfFirstProvider(); |
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/**
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* Gets the number of bands by provider.
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* @return
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*/
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public int[] getBandCountByProvider(); |
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/**
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* Selecting a number of band this function returns the number of band
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* inside the file. If this provider has only one file the result
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* will be band parameter.
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* @param band
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* @return
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*/
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public int getBandPositionByProvider(int band); |
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/**
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* Returns the number of internal providers that it has
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* @return
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*/
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public int getInternalProviderCount(); |
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/**
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* Gets the internal provider of the i position
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* @param i
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* @return
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*/
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public RasterProvider getInternalProvider(int i); |
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/**
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* Gets the URI of the source. If the provider has only one band
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* the result will be the URI. If it is multifile will have to choose
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* among several sources.
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* @param band
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* @return
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*/
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public String getURIByBand(int band); |
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/**
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* Gets the uniform resource identifier
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* @return
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*/
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public String getURI(); |
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/**
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* Gets the number of subdatasets
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* @return
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*/
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public int getSubdatasetCount(); |
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/**
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* Adds a new file. The behavior of this function depends on
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* the kind of provider and its implementation.
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* @param file
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* @throws InvalidSourceException
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*/
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public void addFile(String file) throws InvalidSourceException; |
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/**
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* Removes a file. The behavior of this function depends on
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* the kind of provider and its implementation.
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* @param file
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*/
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public void removeFile(String file); |
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/**
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* Obtiene el n?mero de bandas del raster
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* @return N?mero de bandas
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*/
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public int getBandCount(); |
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/**
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* Obtiene el tipo de dato por banda
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* @return tipo de dato por banda
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*/
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public int[] getDataType(); |
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/**
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* Obtiene la altura del raster en p?xeles.
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* @return altura
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*/
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public double getHeight(); |
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/**
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* Obtiene la anchura del raster en p?xeles.
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* @return anchura
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*/
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public double getWidth(); |
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/**
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* Devuelve si el Dataset es reproyectable
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* @return
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*/
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public boolean isReproyectable(); |
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/**
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* Returns true if this raster has rotation and false if don't
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*/
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public boolean isRotated(); |
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/**
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* Returns true if this provider is open and false if don't
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* @return
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*/
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public boolean isOpen(); |
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/**
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* Returns true if this provider supports time.
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* @return
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*/
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public boolean isTimeSupported(); |
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/**
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* Returns true if the provider support tiles
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* @return
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*/
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public boolean isTiled(); |
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/**
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* Informa de si el dataset soporta overviews o no.
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* @return true si soporta overviews y false si no las soporta.
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*/
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public boolean isOverviewsSupported(); |
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/**
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* Obtiene el n?mero de overviews de una banda
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* @return
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*/
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public int getOverviewCount(int band) throws BandAccessException, RasterDriverException; |
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/**
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* Obtiene el ancho de una overview de una banda
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* @return
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*/
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public int getOverviewWidth(int band, int overview) throws BandAccessException, RasterDriverException; |
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/**
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* Obtiene el alto de una overview de una banda
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* @return
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*/
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public int getOverviewHeight(int band, int overview) throws BandAccessException, RasterDriverException; |
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/**
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* Informa de si el punto en coordenadas del mundo real pasado por par?metro cae dentro del
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* raster o fuera. Para este calculo cogeremos el punto a averiguar si est? dentro del raster
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* y le aplicaremos la transformaci?n inversa de la transformaci?n af?n aplicada. Una vez hecho
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* esto ya se puede comprobar si est? dentro de los l?mites del extent del raster.
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* @param p Punto a comprobar en coordenadas reales
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* @return true si el punto est? dentro y false si est? fuera.
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*/
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public boolean isInside(Point2D p); |
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/**
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* Gets the nodata value.
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* @return
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*/
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public NoData getNoDataValue();
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/**
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* Gets statistics of this provider
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* @return MultiFileStatistics
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*/
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public Statistics getStatistics();
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/**
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* Sets the statistics of this provider. Be careful using this method.
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* Statistics shouldn't be assigned unless you had cloned this provider.
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* @throws RmfSerializerException
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*/
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public void setStatistics(Statistics stats) throws RmfSerializerException; |
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/**
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* Obtiene el extent del raster.
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* @return Extent
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*/
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public Extent getExtent();
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/**
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* Gets the suffix of the source file
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* @return
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*/
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public String getFileSuffix(); |
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/**
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* Este es el extent sobre el que se ajusta una petici?n para que esta no
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* exceda el extent m?ximo del raster. Para un raster sin rotar ser? igual al
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* extent pero para un raster rotado ser? igual al extent del raster como si
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* no tuviera rotaci?n. Esto ha de ser as? ya que la rotaci?n solo se hace
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* sobre la vista y las peticiones han de hacerse en coordenadas de la imagen
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* sin shearing aplicado.
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* @return Extent
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*/
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public Extent getExtentWithoutRot();
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/**
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* Obtiene la matriz de transformaci?n del propio raster. Esta matriz es la
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* encargada de convertir las coordenadas de la petici?n en coordenadas a las
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* que se pide a la libreria. En gdal, por ejemplo, se piden las coordenadas a
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* la libreria en coordenadas pixel por lo que esta matriz tendr? la
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* georreferenciaci?n asociada en el worldfile o cabecera. Otras librerias
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* como ermapper la petici?n a la libreria se hace en coordenadas geograficas
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* que son las mismas en las que pide el usuario de gvSIG por lo que esta
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* matriz en este caso se inicializa con la identidad.
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* @return
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*/
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public AffineTransform getOwnAffineTransform(); |
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/**
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* Obtiene la transformaci?n afin aplicada en las peticiones con coordenadas
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* reales. Esta corresponde al producto matricial entre la transformaci?n de
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* la propia georreferenciaci?n del raster (ownTransformation) y la
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* transformaci?n que se le aplique de forma externa. Si esta ?ltima no existe
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* ser? la matriz identidad.
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* @return Matriz de la transformaci?n af?n.
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*/
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public AffineTransform getAffineTransform(); |
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/**
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* Sets the provider projection
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* @return IProjection
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*/
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public IProjection getProjection();
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/**
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* Gets the provider projection
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* @return IProjection
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*/
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public void setProjection(IProjection proj) throws RmfSerializerException; |
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/**
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* Obtiene el extent asignado
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* @return Extent
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*/
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public Extent getView();
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/**
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* Gets a DatasetMetadata object
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* @return
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*/
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public Metadata getMetadata();
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/**
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* Gets the object with the color interpretation by band
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* @return ColorInterpretation
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*/
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public ColorInterpretation getColorInterpretation();
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/**
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* Assigns the object with the color interpretation by band
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* @param ci
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*/
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public void setColorInterpretation(ColorInterpretation ci); |
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/**
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* Define el objeto paleta. Si se define null quiere decir que no tiene paleta
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* para su visualizaci?n.
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* @param value
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*/
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public void setColorTable(ColorTable value); |
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/**
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* Gets the {@link ColorTable} or null if the raster
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* does not have
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* @return
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*/
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public ColorTable getColorTable();
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/**
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* Gets the legend as a image. The store could not have implemented this method .
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* This is useful above all for WMS but whatever raster layer
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* could return a legend as image.
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* @return
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*/
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public Image getImageLegend(); |
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/**
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* Obtiene el estado de transparencia a partir de los estados de transparencia de todos
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* los ficheros que lo componen. Si varios de los ficheros que lo componen tienen banda de
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* transparencia estas tendr?n que ser mezcladas sobre una banda de transparencia ?nica.
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* @return Objeto FileTransparency con el estado de transparencia
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*/
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public Transparency getTransparency(); |
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/**
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* Cierra los raster asociados.
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*/
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public void close(); |
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/**
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* Convierte un punto desde coordenadas pixel a coordenadas del mundo.
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* @param pt Punto a transformar
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* @return punto transformado en coordenadas del mundo
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*/
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public Point2D rasterToWorld(Point2D pt); |
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/**
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* Convierte un punto desde del mundo a coordenadas pixel.
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* @param pt Punto a transformar
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* @return punto transformado en coordenadas pixel
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*/
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public Point2D worldToRaster(Point2D pt); |
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/**
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* Asigna una transformaci?n al raster para que se tenga en cuenta en la
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* asignaci?n del setView. Esta asignaci?n recalcula el extent, el
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* requestExtent y asigna el AffineTransform que se usar? para la
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* transformaci?n. Esta transformaci?n ser? considerada como si la imagen
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* tuviera asociado un rmf.
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* @param t Transformaci?n af?n a aplicar
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*/
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public void setAffineTransform(AffineTransform t); |
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/**
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* Gets the pixel size
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* @return
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*/
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public double getCellSize(); |
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/**
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* Obtiene el tama?o de pixel en X
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* @return tama?o de pixel en X
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*/
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public double getPixelSizeX(); |
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|
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/**
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* Obtiene el tama?o de pixel en Y
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* @return tama?o de pixel en Y
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*/
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public double getPixelSizeY(); |
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|
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/**
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* Obtiene el valor del raster en la coordenada que se le pasa.
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* El valor ser? Double, Int, Byte, etc. dependiendo del tipo de
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* raster.
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* @param x coordenada X
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* @param y coordenada Y
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* @return
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*/
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public Object getData(int x, int y, int band)throws InvalidSetViewException, FileNotOpenException, RasterDriverException; |
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|
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/**
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* Obtiene la proyecci?n asociada al raster. Como todos los dataset del
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* multiDataset deben tener la misma proyecci?n obtenemos esta del primer
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* dataset.
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* @return Proyecci?n en formato cadena
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* @throws RasterDriverException
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*/
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public String getWktProjection() throws RasterDriverException; |
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|
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/**
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* Dado unas coordenadas reales, un tama?o de buffer y un tama?o de raster.
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* Si el buffer es de mayor tama?o que el raster (supersampleo) quiere decir que
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* por cada pixel de buffer se repiten varios del raster. Esta funci?n calcula el
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* n?mero de pixels de desplazamiento en X e Y que corresponden al primer pixel del
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* buffer en la esquina superior izquierda. Esto es necesario porque la coordenada
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* solicitada es real y puede no caer sobre un pixel completo. Este calculo es
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* util cuando un cliente quiere supersamplear sobre un buffer y que no se lo haga
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* el driver autom?ticamente.
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* @param dWorldTLX Coordenada real X superior izquierda
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* @param dWorldTLY Coordenada real Y superior izquierda
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* @param nWidth Ancho del raster
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* @param nHeight Alto del raster
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* @param bufWidth Ancho del buffer
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* @param bufHeight Alto del buffer
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* @return Array de cuatro. Los dos primeros elementos son el desplazamiento en X e Y y los dos segundos
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* el tama?o en pixels de buffer de un pixel de la imagen en ancho y alto.
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*/
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public double[] calcSteps(double dWorldTLX, double dWorldTLY, double dWorldBRX, double dWorldBRY, |
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double nWidth, double nHeight, int bufWidth, int bufHeight); |
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|
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/**
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* Sets the nodata value
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* @return
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*/
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public void setNoDataValue(NoData value); |
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|
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/**
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* Obtiene el flag que dice si el raster est? o no georreferenciado
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* @return true si est? georreferenciado y false si no lo est?.
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*/
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public boolean isGeoreferenced(); |
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|
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/**
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* Returns true if the provider has several files and all of them has the same extension
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* @return
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*/
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public boolean isMultiFile(); |
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|
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/**
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* Returns true if the source of data is a mosaic of images
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* @return
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*/
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public boolean isMosaic(); |
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|
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/**
|
487 |
* Deletes the cache of this layer composed by the files in the provider list
|
488 |
*/
|
489 |
public void deleteLayerFromCache(); |
490 |
|
491 |
/**
|
492 |
* Clone this RasterProvider
|
493 |
* @return
|
494 |
*/
|
495 |
public RasterProvider cloneProvider() throws CloneException; |
496 |
|
497 |
/**
|
498 |
* Returs the DataParameters
|
499 |
* @return
|
500 |
*/
|
501 |
public RasterDataParameters getDataParameters();
|
502 |
|
503 |
/**
|
504 |
* Lee un bloque completo de datos del raster y devuelve un array tridimensional del tipo correcto. Esta funci?n es util
|
505 |
* para una lectura rapida de todo el fichero sin necesidad de asignar vista.
|
506 |
* @param pos Posici?n donde se empieza a leer
|
507 |
* @param blockHeight Altura m?xima del bloque leido
|
508 |
* @return Object que es un array tridimendional del tipo de datos del raster. (Bandas X Filas X Columnas)
|
509 |
* @throws InvalidSetViewException
|
510 |
* @throws FileNotOpenException
|
511 |
* @throws RasterDriverException
|
512 |
*/
|
513 |
public Object readBlock(int pos, int blockHeight, double scale) |
514 |
throws InvalidSetViewException, FileNotOpenException, RasterDriverException, ProcessInterruptedException;
|
515 |
|
516 |
|
517 |
/**
|
518 |
* Carga un objecto desde un serializador usando el tipo del mismo objeto pasado por parametro.
|
519 |
* Usa value para iniciar dicho serializador
|
520 |
* @param class1
|
521 |
* @param value
|
522 |
* @return
|
523 |
* @throws RmfSerializerException
|
524 |
*/
|
525 |
@SuppressWarnings("unchecked") |
526 |
public Object loadObjectFromRmf(Class class1, Object value) throws RmfSerializerException; |
527 |
|
528 |
/**
|
529 |
* Guarda en el RMF el objecto actual en caso de que exista un serializador para el.
|
530 |
* El tipo del objeto se especifica en el parametro class1.
|
531 |
* Esto nos puede permitir poder poner a null un valor y encontrar su serializador.
|
532 |
* @param class1
|
533 |
* @param value
|
534 |
* @throws RmfSerializerException
|
535 |
*/
|
536 |
@SuppressWarnings("unchecked") |
537 |
public void saveObjectToRmf(Class class1, Object value) throws RmfSerializerException; |
538 |
|
539 |
/**
|
540 |
* Sets the status information using other provider of the same type. The first action
|
541 |
* of this method should be to check the type of the parameter.
|
542 |
* @param provider
|
543 |
*/
|
544 |
public void setStatus(RasterProvider provider); |
545 |
|
546 |
/**
|
547 |
* Gets the information in a real point
|
548 |
* @param x
|
549 |
* @param y
|
550 |
* @return
|
551 |
* @throws RemoteServiceException
|
552 |
*/
|
553 |
public String getInfoByPoint(double x, double y, ICancellable cancellable) throws InfoByPointException; |
554 |
|
555 |
/**
|
556 |
* Gets the information in a pixel point. Some services need additional
|
557 |
* information as the window where the request is done
|
558 |
* @param x
|
559 |
* X Pixel position
|
560 |
* @param y
|
561 |
* Y pixel position
|
562 |
* @param bbox
|
563 |
* Bounding box of the window
|
564 |
* @param w
|
565 |
* Width in pixels of the window
|
566 |
* @param h
|
567 |
* Height in pixels of the window
|
568 |
* @param cancellable
|
569 |
* @return
|
570 |
* @throws RemoteServiceException
|
571 |
*/
|
572 |
public String getInfoByPoint(int x, int y, Extent bbox, int w, int h, ICancellable cancellable) throws InfoByPointException; |
573 |
|
574 |
/**
|
575 |
* Gets the tile cache data server
|
576 |
* @return
|
577 |
*/
|
578 |
public TileServer getTileServer();
|
579 |
|
580 |
/**
|
581 |
* Some sevices has neither limits nor pixel size. For instance, WebMapService
|
582 |
* is a service of this type if the size is not fixed. Other services, like
|
583 |
* WMTS are enclosed too but in this case it will have resolution by level.
|
584 |
* This method returns true if the data source is enclosed.
|
585 |
* @return
|
586 |
*/
|
587 |
public boolean isRasterEnclosed(); |
588 |
|
589 |
/**
|
590 |
* Gets the rmf file path. This method will have to be redefined by providers
|
591 |
* with a different path
|
592 |
* @return
|
593 |
*/
|
594 |
public String getRMFFile(); |
595 |
|
596 |
/**
|
597 |
* Selects the subdataset.
|
598 |
*/
|
599 |
public void selectSubdataset(); |
600 |
|
601 |
/**
|
602 |
* Gets the list of supported formats
|
603 |
* @return
|
604 |
*/
|
605 |
public String[] getFormatList(); |
606 |
|
607 |
/**
|
608 |
* Returns the source type (FILE, POSTGIS, REMOTE,...)
|
609 |
* @return
|
610 |
*/
|
611 |
public int getSourceType(); |
612 |
|
613 |
/**
|
614 |
* This function returns true if the image to be loaded needs a enhanced filter or
|
615 |
* doesn't. It depends on the format, number of bands, type of data and so on.
|
616 |
* @return The default value is false but each driver can change this value.
|
617 |
*/
|
618 |
public boolean needEnhanced(); |
619 |
|
620 |
/**
|
621 |
* Gets the time serial information
|
622 |
* @return
|
623 |
* @throws RmfSerializerException
|
624 |
*/
|
625 |
public TimeSeries getTimeSerials() throws RmfSerializerException; |
626 |
|
627 |
/**
|
628 |
* Sets the time serial information
|
629 |
* @throws RmfSerializerException
|
630 |
*/
|
631 |
public void setTimeSerials(TimeSeries serialInfo) throws RmfSerializerException; |
632 |
|
633 |
/**
|
634 |
* Gets the set of data selected in the {@link RasterQuery}
|
635 |
* @param q
|
636 |
* @return
|
637 |
* @throws RasterDriverException
|
638 |
* @throws ProcessInterruptedException
|
639 |
*/
|
640 |
public Buffer getDataSet(RasterQuery query) throws ProcessInterruptedException, RasterDriverException; |
641 |
|
642 |
/**
|
643 |
* Gets the list of geo points associated to this provider
|
644 |
* @return
|
645 |
*/
|
646 |
public GeoPointList getGeoPointList();
|
647 |
|
648 |
/**
|
649 |
* Sets the list of geo points associated to this provider
|
650 |
*/
|
651 |
public void setGeoPointList(GeoPointList geoPointList); |
652 |
} |