/*******************************************************************************
* Copyright (c) MOBAC developers
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
package mobac.program.model;
import java.awt.Point;
import mobac.gui.mapview.JMapViewer;
import mobac.mapsources.AbstractMultiLayerMapSource;
import mobac.program.interfaces.MapInterface;
import mobac.program.interfaces.MapSource;
import mobac.program.interfaces.MapSpace;
public class MapSelection {
public static final int LAT_MAX = 85;
public static final int LAT_MIN = -85;
public static final int LON_MAX = 179;
public static final int LON_MIN = -179;
private final MapSource mapSource;
private final MapSpace mapSpace;
private final int mapSourceTileSize;
private final int zoom;
private int minTileCoordinate_x;
private int minTileCoordinate_y;
private int maxTileCoordinate_x;
private int maxTileCoordinate_y;
public MapSelection(MapSource mapSource, EastNorthCoordinate max, EastNorthCoordinate min) {
super();
this.mapSource = mapSource;
this.mapSpace = mapSource.getMapSpace();
mapSourceTileSize = this.mapSpace.getTileSize();
zoom = JMapViewer.MAX_ZOOM;
//int x1 = mapSpace.cLonToX(min.lon, zoom);
//int x2 = mapSpace.cLonToX(max.lon, zoom);
//int y1 = mapSpace.cLatToY(min.lat, zoom);
//int y2 = mapSpace.cLatToY(max.lat, zoom);
Point p1 = mapSpace.cLonLatToXY(min.lon, min.lat, zoom);
Point p2 = mapSpace.cLonLatToXY(max.lon, max.lat, zoom);
int x1 = p1.x;
int x2 = p2.x;
int y1 = p1.y;
int y2 = p2.y;
setCoordinates(x1, x2, y1, y2);
}
public MapSelection(MapInterface map) {
this(map.getMapSource(), map.getMaxTileCoordinate(), map.getMinTileCoordinate(), map.getZoom());
}
/**
* @param mapSource
* @param p1
* tile coordinate
* @param p2
* tile coordinate
* @param zoom
*/
public MapSelection(MapSource mapSource, Point p1, Point p2, int zoom) {
super();
this.mapSource = mapSource;
this.mapSpace = mapSource.getMapSpace();
mapSourceTileSize = mapSpace.getTileSize();
this.zoom = zoom;
setCoordinates(p1.x, p2.x, p1.y, p2.y);
}
public MapSelection(MapSource mapSource, MercatorPixelCoordinate c1, MercatorPixelCoordinate c2) {
if (c1.getZoom() != c2.getZoom())
throw new RuntimeException("Different zoom levels - unsuported!");
this.mapSource = mapSource;
this.mapSpace = mapSource.getMapSpace();
mapSourceTileSize = mapSpace.getTileSize();
this.zoom = c1.getZoom();
setCoordinates(c1.getX(), c2.getX(), c1.getY(), c2.getY());
}
protected void setCoordinates(int x1, int x2, int y1, int y2) {
maxTileCoordinate_x = Math.max(x1, x2);
minTileCoordinate_x = Math.min(x1, x2);
maxTileCoordinate_y = Math.max(y1, y2);
minTileCoordinate_y = Math.min(y1, y2);
}
/**
* Is an area selected or only one point?
*
* @return
*/
public boolean isAreaSelected() {
boolean result = maxTileCoordinate_x != minTileCoordinate_x && maxTileCoordinate_y != minTileCoordinate_y;
return result;
}
/**
* Warning: maximum lat/lon is the top right corner of the map selection!
*
* @return maximum lat/lon
*/
public EastNorthCoordinate getMax() {
return new EastNorthCoordinate(mapSpace, zoom, maxTileCoordinate_x, minTileCoordinate_y);
}
/**
* Warning: minimum lat/lon is the bottom left corner of the map selection!
*
* @return minimum lat/lon
*/
public EastNorthCoordinate getMin() {
return new EastNorthCoordinate(mapSpace, zoom, minTileCoordinate_x, maxTileCoordinate_y);
}
/**
* Returns the top left tile x- and y-tile-number (minimum) of the selected area marked by the {@link MapSelection}.
*
* @param aZoomLevel
* @return tile number [0..2<sup>zoom</sup>]
*/
public Point getTopLeftTileNumber(int aZoomlevel) {
Point tlc = getTopLeftPixelCoordinate(aZoomlevel);
tlc.x /= mapSourceTileSize;
tlc.y /= mapSourceTileSize;
return tlc;
}
public MercatorPixelCoordinate getTopLeftPixelCoordinate() {
return new MercatorPixelCoordinate(mapSpace, minTileCoordinate_x, minTileCoordinate_y, zoom);
}
/**
* Returns the top left tile x- and y-tile-coordinate (minimum) of the selected area marked by the
* {@link MapSelection}.
*
* @param aZoomlevel
* @return tile coordinate [0..(256 * 2<sup>zoom</sup>)]
*/
public Point getTopLeftPixelCoordinate(int aZoomlevel) {
int zoomDiff = this.zoom - aZoomlevel;
int x = minTileCoordinate_x;
int y = minTileCoordinate_y;
if (zoomDiff < 0) {
zoomDiff = -zoomDiff;
x <<= zoomDiff;
y <<= zoomDiff;
} else {
x >>= zoomDiff;
y >>= zoomDiff;
}
return new Point(x, y);
}
/**
* Returns the bottom right tile x- and y-tile-number (minimum) of the selected area marked by the
* {@link MapSelection}.
*
* @param aZoomlevel
* @return tile number [0..2<sup>zoom</sup>]
*/
public Point getBottomRightTileNumber(int aZoomlevel) {
Point brc = getBottomRightPixelCoordinate(aZoomlevel);
brc.x = brc.x / mapSourceTileSize;
brc.y = brc.y / mapSourceTileSize;
return brc;
}
/**
* Returns the bottom right tile x- and y-tile-coordinate (minimum) of the selected area regarding the zoom level
* specified at creation time of this {@link MapSelection} instance.
*
* @return tile coordinate [0..(256 * 2<sup>zoom</sup>)]
*/
public MercatorPixelCoordinate getBottomRightPixelCoordinate() {
return new MercatorPixelCoordinate(mapSpace, maxTileCoordinate_x, maxTileCoordinate_y, zoom);
}
/**
* Returns the bottom right tile x- and y-tile-coordinate (minimum) of the selected area marked by the
* {@link MapSelection}.
*
* @param aZoomlevel
* @return tile coordinate [0..(256 * 2<sup>zoom</sup>)]
*/
public Point getBottomRightPixelCoordinate(int aZoomlevel) {
int zoomDiff = this.zoom - aZoomlevel;
int x = maxTileCoordinate_x;
int y = maxTileCoordinate_y;
if (zoomDiff < 0) {
zoomDiff = -zoomDiff;
x <<= zoomDiff;
y <<= zoomDiff;
} else {
x >>= zoomDiff;
y >>= zoomDiff;
}
return new Point(x, y);
}
/**
* Return the amount of tiles for the current selection in the specified zoom level.
*
* @param zoom
* is the zoom level to calculate the amount of tiles for
* @return the amount of tiles in the current selection in the supplied zoom level
*/
public long calculateNrOfTiles(int zoom) {
Point max = getBottomRightTileNumber(zoom);
Point min = getTopLeftTileNumber(zoom);
long width = max.x - min.x + 1;
long height = max.y - min.y + 1;
long tileCount = width * height;
if (mapSource instanceof AbstractMultiLayerMapSource) {
int mapLayerCount = ((AbstractMultiLayerMapSource) mapSource).getLayerMapSources().length;
tileCount *= mapLayerCount;
}
return tileCount;
}
public long[] calculateNrOfTilesEx(int zoom) {
Point max = getBottomRightTileNumber(zoom);
Point min = getTopLeftTileNumber(zoom);
long width = max.x - min.x + 1;
long height = max.y - min.y + 1;
long tileCount = width * height;
if (mapSource instanceof AbstractMultiLayerMapSource) {
int mapLayerCount = ((AbstractMultiLayerMapSource) mapSource).getLayerMapSources().length;
tileCount *= mapLayerCount;
}
return new long[] { tileCount, width, height };
}
@Override
public String toString() {
EastNorthCoordinate max = getMax();
EastNorthCoordinate min = getMin();
return String.format("lat/lon: max(%6f/%6f) min(%6f/%6f)", new Object[] { max.lat, max.lon, min.lat, min.lon });
}
}