added MapLensOverlay

src/org/oscim/core/MapPosition.java

@@ -21,7 +21,10 @@ public class MapPosition {
 	public double lon;
 	public double lat;
 
-	public int zoomLevel;
+	public double absX;
+	public double absY;
+	public double absScale;
+
 	public float scale;
 	public float angle;
 	public float tilt;
@@ -29,6 +32,7 @@ public class MapPosition {
 	// map center in tile coordinates of current zoom-level
 	public double x;
 	public double y;
+	public int zoomLevel;
 
 	public MapPosition() {
 		this.zoomLevel = (byte) 1;

src/org/oscim/renderer/PolygonRenderer.java

@@ -294,7 +294,7 @@ public final class PolygonRenderer {
 		}
 	}
 
-	public static void drawOver(Matrices m) {
+	public static void drawOver(Matrices m, boolean drawColor, int color) {
 		if (GLState.useProgram(polygonProgram)) {
 
 			GLState.enableVertexArrays(hPolygonVertexPosition, -1);
@@ -310,9 +310,13 @@ public final class PolygonRenderer {
 		 * a quad with func 'always' and op 'zero'
 		 */
 
+		if (drawColor) {
+			GlUtils.setColor(hPolygonColor, color, 1);
+			GLState.blend(true);
+		} else {
 			// disable drawing to framebuffer (will be re-enabled in fill)
 			glColorMask(false, false, false, false);
-
+		}
 		// always pass stencil test:
 		glStencilFunc(GL_ALWAYS, 0x00, 0x00);
 		// write to all bits
@@ -321,6 +325,8 @@ public final class PolygonRenderer {
 		glStencilOp(GLES20.GL_KEEP, GLES20.GL_KEEP, GLES20.GL_ZERO);
 
 		glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+
+		if (!drawColor)
 			glColorMask(true, true, true, true);
 	}
 

src/org/oscim/renderer/TileRenderer.java

@@ -22,6 +22,7 @@ import org.oscim.core.MapPosition;
 import org.oscim.renderer.GLRenderer.Matrices;
 import org.oscim.renderer.layer.Layer;
 import org.oscim.utils.FastMath;
+import org.oscim.utils.Matrix4;
 
 import android.opengl.GLES20;
 
@@ -44,10 +45,17 @@ public class TileRenderer {
 
 	private static Matrices mMatrices;
 
+	private static final Matrix4 mProjMatrix = new Matrix4();
+
 	static void draw(MapTile[] tiles, int tileCnt, MapPosition pos, Matrices m) {
 		mDrawCnt = 0;
 		mMatrices = m;
 
+		mProjMatrix.copy(m.viewproj);
+		// discard z projection from tilt
+		mProjMatrix.setValue(10, 0);
+		mProjMatrix.setValue(14, 0);
+
 		GLES20.glDepthFunc(GLES20.GL_LESS);
 
 		// load texture for line caps
@@ -116,11 +124,11 @@ public class TileRenderer {
 		Matrices m = mMatrices;
 		m.mvp.setTransScale(x * scale, y * scale, scale / GLRenderer.COORD_SCALE);
 
-		m.mvp.multiplyMM(m.viewproj, m.mvp);
+		m.mvp.multiplyMM(mProjMatrix, m.mvp);
 
 		// set depth offset (used for clipping to tile boundaries)
 		GLES20.glPolygonOffset(1, mDrawCnt++);
-		if (mDrawCnt > 20)
+		if (mDrawCnt == 100)
 			mDrawCnt = 0;
 
 		// simple line shader does not take forward shortening into account
@@ -160,7 +168,7 @@ public class TileRenderer {
 		}
 
 		// clear clip-region and could also draw 'fade-effect'
-		PolygonRenderer.drawOver(m);
+		PolygonRenderer.drawOver(m, true, 0x22000000);
 	}
 
 	private static int drawProxyChild(MapTile tile, MapPosition pos) {

src/org/oscim/view/MapView.java

@@ -38,14 +38,13 @@ import org.oscim.generator.JobTile;
 import org.oscim.generator.MapWorker;
 import org.oscim.generator.TileGenerator;
 import org.oscim.overlay.BuildingOverlay;
-import org.oscim.overlay.GenericOverlay;
 import org.oscim.overlay.LabelingOverlay;
+import org.oscim.overlay.MapLensOverlay;
 import org.oscim.overlay.Overlay;
 import org.oscim.overlay.OverlayManager;
 import org.oscim.renderer.GLRenderer;
 import org.oscim.renderer.GLView;
 import org.oscim.renderer.TileManager;
-import org.oscim.renderer.overlays.TileOverlay;
 import org.oscim.theme.ExternalRenderTheme;
 import org.oscim.theme.InternalRenderTheme;
 import org.oscim.theme.RenderTheme;
@@ -197,8 +196,8 @@ public class MapView extends RelativeLayout {
 		mOverlayManager.add(new LabelingOverlay(this));
 
 
-		mOverlayManager.add(new GenericOverlay(this, new TileOverlay(this)));
+		//mOverlayManager.add(new GenericOverlay(this, new TileOverlay(this)));
-
+		mOverlayManager.add(new MapLensOverlay(this));
 
 		//mOverlayManager.add(new GenericOverlay(this, new CustomOverlay(this)));
 

src/org/oscim/view/MapViewPosition.java

@@ -157,6 +157,10 @@ public class MapViewPosition {
 		pos.angle = mRotation;
 		pos.tilt = mTilt;
 
+		pos.absX = mAbsX;
+		pos.absY = mAbsY;
+		pos.absScale = mAbsScale;
+
 		// for tiling
 		pos.scale = scale;
 		pos.zoomLevel = (byte) z;
@@ -312,28 +316,33 @@ public class MapViewPosition {
 		return bbox;
 	}
 
-//	/**
+	/**
-//	 * For x, y in screen coordinates set Point to map-tile
+	 * For x, y in screen coordinates set Point to map-tile
-//	 * coordinates at returned scale.
+	 * coordinates at returned scale.
-//	 *
+	 *
-//	 * @param x screen coordinate
+	 * @param x screen coordinate
-//	 * @param y screen coordinate
+	 * @param y screen coordinate
-//	 * @param out Point coords will be set
+	 * @param out Point coords will be set
-//	 * @return current map scale
+	 */
-//	 */
+	public synchronized void getScreenPointOnMap(float x, float y, double scale, PointD out) {
-//	public synchronized float getScreenPointOnMap(float x, float y, PointD out) {
+
-//
+		// scale to -1..1
-//		// scale to -1..1
+		float mx = 1 - (x / mWidth * 2);
-//		float mx = 1 - (x / mWidth * 2);
+		float my = 1 - (y / mHeight * 2);
-//		float my = 1 - (y / mHeight * 2);
+
-//
+		unproject(-mx, my, getZ(-my), mu, 0);
-//		unproject(-mx, my, getZ(-my), mu, 0);
+
-//
+		//out.x = mCurX + mu[0];
-//		out.x = mCurX + mu[0];
+		//out.y = mCurY + mu[1];
-//		out.y = mCurY + mu[1];
+
-//
+		out.x = mu[0];
-//		return (float) mAbsScale;
+		out.y = mu[1];
-//	}
+
+		if (scale != 0) {
+			out.x *= scale / mAbsScale;
+			out.y *= scale / mAbsScale;
+		}
+	}
 
 	/**
 	 * Get the GeoPoint for x,y in screen coordinates.
@@ -729,23 +738,23 @@ public class MapViewPosition {
 		mHandler.start(mDuration);
 	}
 
-
+	synchronized boolean fling(float adv) {
-	synchronized boolean fling(float adv){
 
 		//float delta = (mDuration - millisLeft) / mDuration;
-	adv = (float)Math.sqrt(adv);
+		adv = (float) Math.sqrt(adv);
 		float dx = mVelocityX * adv;
 		float dy = mVelocityY * adv;
 
-	if (dx != 0 || dy != 0){
+		if (dx != 0 || dy != 0) {
-		moveMap((float)(dx - mScrollX), (float)(dy - mScrollY));
+			moveMap((float) (dx - mScrollX), (float) (dy - mScrollY));
 
 			mMapView.redrawMap(true);
 			mScrollX = dx;
 			mScrollY = dy;
 		}
 		return true;
-}
+	}
+
 	private float mVelocityX;
 	private float mVelocityY;