Adicionado as classes Tile e PointD

app/src/main/java/ufpr/inf/pet/geoloc/TilesManager.java

+package ufpr.inf.pet.geoloc;
+
+/**
+ * Created by vmocelin on 27/05/15.
+ */
+public class TilesManager {
+    private static double raioTerra = 6378137;
+    private double minLatitude;
+    private double maxLatitude;
+    private double minLongitude;
+    private double maxLongitude;
+    private int maxZoom = 5;
+    private int tamTile = 256;
+    private int viewWidth;
+    private int viewHeight;
+    private int tilesX;
+    private int tilesY;
+    private int zoom = 0;
+    private PointD location = new PointD();
+
+    private static double clip(double n, double minValue, double maxValue)
+    {
+        return Math.min(Math.max(n, minValue), maxValue);
+    }
+
+    public int tamanhoMapa(){
+        return (int) 256 << zoom;
+    }
+
+    public PointD longLatToXY(double latitude, double longitude){
+        latitude = clip(latitude, minLatitude, maxLatitude);
+        longitude = clip(longitude, minLongitude, maxLongitude);
+
+        double x = (longitude + 180) / 360;
+        double sinLatitude = Math.sin(latitude * Math.PI / 180);
+        double y = 0.5 - Math.log((1 + sinLatitude) / (1 - sinLatitude)) / (4 * Math.PI);
+
+        int mapSize = tamanhoMapa();
+        PointD pointD = new PointD();
+        pointD.setX((int) clip(x * mapSize + 0.5, 0, mapSize - 1));
+        pointD.setY((int) clip(y * mapSize + 0.5, 0, mapSize - 1));
+        return pointD;
+    }
+
+    public PointD xyToLongLat(int pixelX, int pixelY) {
+        double mapSize = tamanhoMapa();
+        double x = (clip(pixelX, 0, mapSize - 1) / mapSize) - 0.5;
+        double y = 0.5 - (clip(pixelY, 0, mapSize - 1) / mapSize);
+
+        PointD pointD = new PointD();
+        pointD.setX(90 - 360 * Math.atan(Math.exp(-y * 2 * Math.PI)) / Math.PI);
+        pointD.setY(360 * x);
+        return pointD;
+    }
+
+    public double getMinLatitude() {
+        return minLatitude;
+    }
+
+    public void setMinLatitude(double minLatitude) {
+        this.minLatitude = minLatitude;
+    }
+
+    public double getMaxLatitude() {
+        return maxLatitude;
+    }
+
+    public void setMaxLatitude(double maxLatitude) {
+        this.maxLatitude = maxLatitude;
+    }
+
+    public double getMinLongitude() {
+        return minLongitude;
+    }
+
+    public void setMinLongitude(double minLongitude) {
+        this.minLongitude = minLongitude;
+    }
+
+    public double getMaxLongitude() {
+        return maxLongitude;
+    }
+
+    public void setMaxLongitude(double maxLongitude) {
+        this.maxLongitude = maxLongitude;
+    }
+
+    public int getMaxZoom() {
+        return maxZoom;
+    }
+
+    public void setMaxZoom(int maxZoom) {
+        this.maxZoom = maxZoom;
+    }
+
+    public int getTamTile() {
+        return tamTile;
+    }
+
+    public void setTamTile(int tamTile) {
+        this.tamTile = tamTile;
+    }
+
+    public int getViewWidth() {
+        return viewWidth;
+    }
+
+    public void setViewWidth(int viewWidth) {
+        this.viewWidth = viewWidth;
+    }
+
+    public int getViewHeight() {
+        return viewHeight;
+    }
+
+    public void setViewHeight(int viewHeight) {
+        this.viewHeight = viewHeight;
+    }
+
+    public int getTilesX() {
+        return tilesX;
+    }
+
+    public void setTilesX(int tilesX) {
+        this.tilesX = tilesX;
+    }
+
+    public int getTilesY() {
+        return tilesY;
+    }
+
+    public void setTilesY(int tilesY) {
+        this.tilesY = tilesY;
+    }
+
+    public int getZoom() {
+        return zoom;
+    }
+
+    public void setZoom(int zoom) {
+        this.zoom = zoom;
+    }
+
+    public PointD getLocation() {
+        return location;
+    }
+
+    public void setLocation(PointD location) {
+        this.location = location;
+    }
+}