gvsig-raster / org.gvsig.raster.cache / trunk / org.gvsig.raster.cache / org.gvsig.raster.cache.lib.impl / src / main / java / org / gvsig / raster / cache / tile / impl / provider / DefaultCacheStruct.java @ 982
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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.cache.tile.impl.provider; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.util.ArrayList; |
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import org.gvsig.raster.cache.tile.Tile; |
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import org.gvsig.raster.cache.tile.TileCacheLocator; |
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import org.gvsig.raster.cache.tile.disk.ITileFileSystemStrategy; |
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import org.gvsig.raster.cache.tile.exception.TileBuildException; |
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import org.gvsig.raster.cache.tile.impl.TileImpl; |
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import org.gvsig.raster.cache.tile.provider.CacheStruct; |
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/**
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* Implementation for a structure of a cache
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class DefaultCacheStruct implements CacheStruct { |
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private TileMatrixSet tileMatrixSet = null; |
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private ArrayList<TileMatrixLimits> limits = null; |
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private String layerName = null; |
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private String uri = null; |
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private Rectangle2D worldExtent = null; |
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private String fileSuffix = null; |
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private String epsg = null; |
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private long fileSize = 0; |
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private double realPixelSize = 0; |
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private Rectangle2D layerExtent = null; |
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public DefaultCacheStruct(int typeOfCoords, |
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int levels,
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Rectangle2D layerExtent,
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double pixelSize,
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int tilePxWidth,
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int tilePxHeight,
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String uri,
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String layerName,
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ITileFileSystemStrategy strategy, |
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String baseDir,
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String fileSuffix,
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String epsg,
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long size) {
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this.uri = uri;
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this.layerName = layerName;
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this.fileSuffix = fileSuffix;
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this.fileSize = size;
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this.realPixelSize = pixelSize;
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this.layerExtent = layerExtent;
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if(epsg != null && epsg.startsWith("EPSG:")) |
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this.epsg = epsg;
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//Coordenadas del mundo en geogr?ficas y planas
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if(typeOfCoords == CacheStruct.GEOGRAFIC) {
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worldExtent = new Rectangle2D.Double(-180, -90, 360, 180); |
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} |
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if(typeOfCoords == CacheStruct.FLAT) {
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worldExtent = new Rectangle2D.Double(-20037508, -20037508, 40075016, 40075016); |
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} |
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double[] pixelSizeList = buildWorldMatrix(typeOfCoords, levels, tilePxWidth, tilePxHeight, worldExtent); |
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buildLayerMatrix(levels, tilePxWidth, tilePxHeight, worldExtent, layerExtent, pixelSizeList, pixelSize); |
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} |
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private void buildLayerMatrix(int levels, |
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int tilePxWidth,
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int tilePxHeight,
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Rectangle2D worldExtent,
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Rectangle2D layerExtent,
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double[] pixelSizeList, |
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double maxPixelSize) {
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limits = new ArrayList<TileMatrixLimits>(); |
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for (int i = 0; i < levels; i++) { |
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//Calculo de tiles para ese nivel en la capa actual
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int minTileCol = (int)(Math.abs(layerExtent.getMinX() - worldExtent.getMinX()) / pixelSizeList[i]) / tilePxWidth; |
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int minTileRow = (int)(Math.abs(layerExtent.getMaxY() - worldExtent.getMaxY()) / pixelSizeList[i]) / tilePxHeight; |
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int maxTileCol = (int)(Math.abs(layerExtent.getMaxX() - worldExtent.getMinX()) / pixelSizeList[i]) / tilePxWidth; |
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int maxTileRow = (int)(Math.abs(layerExtent.getMinY() - worldExtent.getMaxY()) / pixelSizeList[i]) / tilePxHeight; |
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//int imageTileWidth = (int)Math.ceil((layerExtent.getWidth() / pixelSizeList[i]) / tilePxWidth);
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//int imageTileHeight = (int)Math.ceil((layerExtent.getHeight() / pixelSizeList[i]) / tilePxHeight);
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TileMatrixLimits limit = new TileMatrixLimits();
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limit.setMinTileRow(minTileRow); |
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limit.setMinTileCol(minTileCol); |
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limit.setMaxTileRow(maxTileRow); |
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limit.setMaxTileCol(maxTileCol); |
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//Calcula las coordenadas de la esquina superior izquierda del TileMatrixLimits
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double ulx = worldExtent.getMinX() + (minTileCol * tilePxWidth * pixelSizeList[i]);
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double uly = worldExtent.getMaxY() - (minTileRow * tilePxHeight * pixelSizeList[i]);
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limit.getTileMatrix().setTopLeftCorner(new double[]{ulx, uly}); |
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limit.getTileMatrix().setScaleDenominator(pixelSizeList[i]); |
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limit.getTileMatrix().setTileWidth(tilePxWidth); |
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limit.getTileMatrix().setTileHeight(tilePxHeight); |
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limits.add(limit); |
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if(i == (levels - 1) || (maxPixelSize != Double.POSITIVE_INFINITY && maxPixelSize != Double.NEGATIVE_INFINITY && pixelSizeList[i] < maxPixelSize)) { |
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//System.out.println("Image res:" + maxPixelSize + " Real res:" + pixelSizeList[i]);
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break;
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} |
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} |
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} |
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private double[] buildWorldMatrix(int typeOfCoords, |
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int levels,
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int tilePxWidth,
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int tilePxHeight,
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Rectangle2D worldExtent) {
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double[] pixelSizeList = new double[levels]; |
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limits = new ArrayList<TileMatrixLimits>(); |
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tileMatrixSet = new TileMatrixSet();
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tileMatrixSet.setBbox(worldExtent); |
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int nTilesWidth = 0; |
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int nTilesHeight = 0; |
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for (int i = 0; i < levels; i++) { |
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TileMatrix tm = new TileMatrix();
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tm.setTileWidth(tilePxWidth); |
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tm.setTileHeight(tilePxHeight); |
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if(i == 0) { |
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nTilesWidth = (typeOfCoords == CacheStruct.FLAT) ? 1 : 2; |
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nTilesHeight = 1;
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} else {
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nTilesWidth *= 2;
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nTilesHeight *= 2;
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} |
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tm.setMatrixWidth(nTilesWidth); |
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tm.setMatrixHeight(nTilesHeight); |
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if((tilePxWidth * nTilesWidth) != 0) |
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pixelSizeList[i] = worldExtent.getWidth() / ((long)tilePxWidth * (long)nTilesWidth); |
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else
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pixelSizeList[i] = 0;
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//System.out.println("-Level:" + i + " " + nTilesWidth + " " + nTilesHeight + " " + pixelSizeList[i]);
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tm.setScaleDenominator(pixelSizeList[i]); |
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tileMatrixSet.getTileMatrix().add(tm); |
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} |
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return pixelSizeList;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getNumberOfLevels()
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*/
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public int getNumberOfLevels() { |
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return tileMatrixSet.getTileMatrix().size();
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getLayerName()
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*/
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public String getLayerName() { |
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return layerName;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getServerURL()
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*/
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public String getServerURL() { |
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return uri;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getFileSuffix()
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*/
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public String getFileSuffix() { |
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return fileSuffix;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getTileSizeByLevel(int)
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*/
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public int[] getTileSizeByLevel(int level) { |
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return new int[] { |
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tileMatrixSet.getTileMatrix().get(level).getTileWidth(), |
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tileMatrixSet.getTileMatrix().get(level).getTileHeight() |
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}; |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getTileSizeInRealCoordsByLevel(int)
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*/
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public double[] getTileSizeInRealCoordsByLevel(int level) { |
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return new double[] { |
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getPixelSizeByLevel(level) * tileMatrixSet.getTileMatrix().get(level).getTileWidth(), |
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getPixelSizeByLevel(level) * tileMatrixSet.getTileMatrix().get(level).getTileHeight() |
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}; |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getLayerWidthOfTileMatrixByLevel(int)
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*/
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public int getLayerWidthOfTileMatrixByLevel(int level) { |
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if(level < limits.size()) {
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TileMatrixLimits l = limits.get(level); |
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return (l.getMaxTileRow() - l.getMinTileRow()) + 1; |
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} |
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return 0; |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getLayerHeightOfTileMatrixByLevel(int)
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*/
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public int getLayerHeightOfTileMatrixByLevel(int level) { |
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if(level < limits.size()) {
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TileMatrixLimits l = limits.get(level); |
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return (l.getMaxTileCol() - l.getMinTileCol()) + 1; |
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} |
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return 0; |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getLayerInitXTilePositionByLevel(int)
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*/
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public int getLayerInitXTilePositionByLevel(int level) { |
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TileMatrixLimits l = limits.get(level); |
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return l.getMinTileCol();
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getLayerInitYTilePositionByLevel(int)
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*/
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public int getLayerInitYTilePositionByLevel(int level) { |
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TileMatrixLimits l = limits.get(level); |
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return l.getMinTileRow();
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getWorldHeightOfTileMatrixByLevel(int)
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*/
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public long getWorldHeightOfTileMatrixByLevel(int level) { |
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return tileMatrixSet.getTileMatrix().get(level).getMatrixWidth();
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getWorldWidthOfTileMatrixByLevel(int)
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*/
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public long getWorldWidthOfTileMatrixByLevel(int level) { |
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return tileMatrixSet.getTileMatrix().get(level).getMatrixHeight();
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getPixelSizeByLevel(int)
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*/
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public double getPixelSizeByLevel(int level) { |
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if(level < 0) |
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return realPixelSize;
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return tileMatrixSet.getTileMatrix().get(level).getScaleDenominator();
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getTileExtent(org.gvsig.raster.cache.tile.Tile)
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*/
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public Point2D[] getTileExtent(Tile tile) { |
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return limits.get(tile.getLevel()).getTileExtent(tile.getRow(), tile.getCol());
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getTileExtent(int, int, int)
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*/
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public Point2D[] getTileExtent(int level, int col, int row) { |
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return limits.get(level).getTileExtent(row, col);
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getTileStructure(int, int, int, java.awt.geom.Point2D, java.awt.geom.Point2D)
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*/
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public Tile getTileStructure(int level, int tileCol, int tileRow, Point2D ul, Point2D lr) throws TileBuildException { |
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int[] size = getTileSizeByLevel(level); |
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Tile tile = TileCacheLocator.getManager().createTile(level, tileRow, tileCol); |
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tile.setUl(ul); |
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tile.setLr(lr); |
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tile.setWidthPx(size[0]);
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tile.setHeightPx(size[1]);
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return tile;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getTileList(java.awt.geom.Rectangle2D)
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*/
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public ArrayList<Tile> getTileList(Rectangle2D r) { |
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int tilePxWidth = tileMatrixSet.getTileMatrix().get(0).getTileWidth(); |
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int tilePxHeight = tileMatrixSet.getTileMatrix().get(0).getTileHeight(); |
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int minTileCol = (int)(r.getX() / tilePxWidth); |
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int minTileRow = (int)(r.getY() / tilePxHeight); |
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int maxTileCol = (int)((r.getX() + r.getWidth()) / tilePxWidth); |
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int maxTileRow = (int)((r.getY() + r.getHeight()) / tilePxHeight); |
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double tileWCWidth = tilePxWidth * realPixelSize;
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double tileWCHeight = tilePxHeight * realPixelSize;
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//Calculo de tiles con sus coordenadas
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ArrayList<Tile> tileList = new ArrayList<Tile>(); |
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for (int i = minTileRow; i <= maxTileRow; i++) { |
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for (int j = minTileCol; j <= maxTileCol; j++) { |
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Point2D ulTile = new Point2D.Double( |
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layerExtent.getMinX() + (tileWCWidth * j), |
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layerExtent.getMaxY() - (tileWCHeight * i)); |
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Point2D lrTile = new Point2D.Double(ulTile.getX() + tileWCWidth, ulTile.getY() - tileWCHeight); |
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Tile t = new TileImpl(tilePxWidth, tilePxHeight, i, j, ulTile, lrTile);
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t.setLevel(-1);
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int initTileX = tilePxWidth * j;
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int initTileY = tilePxHeight * i;
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Rectangle2D rTile = new Rectangle2D.Double(initTileX, initTileY, tilePxWidth, tilePxHeight); |
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t.setCoordsPx(rTile); |
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tileList.add(t); |
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} |
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} |
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return tileList;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getTileList(java.awt.geom.Point2D, java.awt.geom.Point2D)
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*/
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public ArrayList<Tile> getTileList(Point2D ul, Point2D lr, double mtsPixelRequest) { |
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//Selecci?n de nivel de resoluci?n
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int tilePxWidth = 0; |
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int tilePxHeight = 0; |
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double tileWCWidth = 0; |
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double tileWCHeight = 0; |
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int level = 0; |
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double mtsPixelLevel = 0; |
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for (int i = 0; i < tileMatrixSet.getTileMatrix().size(); i++) { |
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mtsPixelLevel = tileMatrixSet.getTileMatrix().get(i).getScaleDenominator(); |
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if(mtsPixelRequest > mtsPixelLevel) {
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level = Math.max(i, 0); |
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//Se ajusta al m?ximo nivel disponible para esa capa
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if(level > (limits.size() - 1)) { |
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level = limits.size() - 1;
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mtsPixelLevel = tileMatrixSet.getTileMatrix().get(level).getScaleDenominator(); |
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} |
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tilePxWidth = tileMatrixSet.getTileMatrix().get(level).getTileWidth(); |
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tilePxHeight = tileMatrixSet.getTileMatrix().get(level).getTileHeight(); |
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//mtsPixelLevel = tileMatrixSet.getTileMatrix().get(i - 1).getScaleDenominator();
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tileWCWidth = tilePxWidth * mtsPixelLevel; |
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tileWCHeight = tilePxHeight * mtsPixelLevel; |
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break;
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} |
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} |
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//Calculo del rectangulo de tiles
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int minTileCol = (int)((Math.abs(ul.getX() - worldExtent.getMinX()) / mtsPixelLevel) / tilePxWidth); |
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int minTileRow = (int)((Math.abs(ul.getY() - worldExtent.getMaxY()) / mtsPixelLevel) / tilePxHeight); |
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double maxTC = ((Math.abs(lr.getX() - worldExtent.getMinX()) / mtsPixelLevel) / tilePxWidth); |
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double maxTR = ((Math.abs(lr.getY() - worldExtent.getMaxY()) / mtsPixelLevel) / tilePxHeight); |
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int maxTileCol = ((maxTC - ((int)maxTC)) == 0) ? (int)(maxTC - 1) : (int)maxTC; |
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int maxTileRow = ((maxTR - ((int)maxTR)) == 0) ? (int)(maxTR - 1) : (int)maxTR; |
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//Calculo de tiles con sus coordenadas
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ArrayList<Tile> tileList = new ArrayList<Tile>(); |
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for (int i = minTileRow; i <= maxTileRow; i++) { |
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for (int j = minTileCol; j <= maxTileCol; j++) { |
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Point2D ulTile = new Point2D.Double( |
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worldExtent.getMinX() + (tileWCWidth * j), |
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worldExtent.getMaxY() - (tileWCHeight * i)); |
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Point2D lrTile = new Point2D.Double(ulTile.getX() + tileWCWidth, ulTile.getY() - tileWCHeight); |
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Tile t = new TileImpl(tilePxWidth, tilePxHeight, i, j, ulTile, lrTile);
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t.setLevel(level); |
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tileList.add(t); |
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} |
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} |
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return tileList;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.tile.provider.CacheStruct#compare(org.gvsig.raster.cache.tile.provider.CacheStruct)
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*/
|
| 412 |
public boolean compare(CacheStruct struct) { |
| 413 |
//Compara: n?mero de niveles, tama?o de tile,
|
| 414 |
//anchoXalto de la matriz, tama?o de pixel por nivel,
|
| 415 |
//coordenadas de al menos un tile de la matriz
|
| 416 |
if(struct.getNumberOfLevels() == getNumberOfLevels()) {
|
| 417 |
for (int i = 0; i < getNumberOfLevels(); i++) { |
| 418 |
if( struct.getTileSizeByLevel(i)[0] == getTileSizeByLevel(i)[0] && |
| 419 |
struct.getTileSizeByLevel(i)[1] == getTileSizeByLevel(i)[1] && |
| 420 |
struct.getWorldHeightOfTileMatrixByLevel(i) == getWorldHeightOfTileMatrixByLevel(i) && |
| 421 |
struct.getWorldWidthOfTileMatrixByLevel(i) == getWorldWidthOfTileMatrixByLevel(i) && |
| 422 |
clipDecimals(struct.getPixelSizeByLevel(i), 2) == clipDecimals(getPixelSizeByLevel(i), 2) && |
| 423 |
compareExtents(struct.getTileExtent(i, 0, 0), getTileExtent(i, 0, 0))) { |
| 424 |
return true; |
| 425 |
} |
| 426 |
} |
| 427 |
} |
| 428 |
return false; |
| 429 |
} |
| 430 |
|
| 431 |
/*
|
| 432 |
* (non-Javadoc)
|
| 433 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getEPSG()
|
| 434 |
*/
|
| 435 |
public String getEPSG() { |
| 436 |
return epsg;
|
| 437 |
} |
| 438 |
|
| 439 |
/*
|
| 440 |
* (non-Javadoc)
|
| 441 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getFileSize()
|
| 442 |
*/
|
| 443 |
public String getFileSize() { |
| 444 |
return fileSize + ""; |
| 445 |
} |
| 446 |
|
| 447 |
private boolean compareExtents(Point2D[] p, Point2D[] p1) { |
| 448 |
return (p[0].getX() == p1[0].getX() && p[0].getY() == p1[0].getY() && |
| 449 |
p[1].getX() == p1[1].getX() && p[1].getY() == p1[1].getY()); |
| 450 |
} |
| 451 |
|
| 452 |
public double clipDecimals(double num, int n) { |
| 453 |
long m = (long) Math.pow(10, n); |
| 454 |
long aux = Math.round(num * m); |
| 455 |
return (double) aux / (double) m; |
| 456 |
} |
| 457 |
|
| 458 |
} |