데이터베이스에 있는 위도 경도 값을 읽어오는 것은 되는데요ㅠㅠㅠㅠㅠ그 위치에 표시하는 게 안되요ㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠ제발 도와주세요요요요요요요요용

import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Point;
import android.os.Bundle;
import android.widget.Toast;

import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.Overlay;

public class Map extends MapActivity {

 MapView mapview;
 Cursor mCursor;

 SQLiteDatabase DBgb;
 dbGB DBgbHelper;

 int count = 0;

 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.maps);
  mapview = (MapView) findViewById(R.id.map);
  mapview.setBuiltInZoomControls(true);
  mapview.setSatellite(false);
  GeoPoint gpoint = new GeoPoint((int) (37.588391 * 1000000.0),
    (int) (126.976547 * 1000000.0));
  MapController controller = mapview.getController();

  controller.animateTo(gpoint);

  controller.setZoom(16);

  controller.setCenter(gpoint);

  mapview.getOverlays().add(new MapOverlay());

  DBHelper = new db(this);
  DB= DBHelper.getWritableDatabase();
  mCursor = DB.rawQuery("select * from Gyoung", null);

 }

 @Override
 protected boolean isRouteDisplayed() {
  return true;
 }

 class MapOverlay extends Overlay {

  @Override
  public void draw(Canvas canvas, MapView mapView, boolean shadow) {
   // TODO Auto-generated method stub
   super.draw(canvas, mapView, shadow);

   Paint paint1 = new Paint();
   Paint paint2 = new Paint();

   paint1.setARGB(255, 255, 0, 0); // a, r, g, b
   paint2.setARGB(255, 255, 0, 0);
   GeoPoint geoPoint = new GeoPoint(37588391, 126976547);

   Point pixPoint = new Point();

   mapView.getProjection().toPixels(geoPoint, pixPoint);

   // drawCircle(float cx, float cy, float radius, Paint paint) ;
   // drawLine(float startX, float startY, float stopX, float stopY,
   // Paint
   // paint) ;
   // drawText(String text, float x, float y, Paint paint) ;
   Point[] position =new Point[mCursor.getCount()];

   while (mCursor.moveToNext()) {

    double latitude = Double.parseDouble(mCursor.getString(2));
    double longitude = Double.parseDouble(mCursor.getString(3));
    /*Toast.makeText(MapGB.this, "" + latitude + "" + longitude , Toast.LENGTH_LONG)
      .show();*/
    position[count] = mapView.getProjection().toPixels(new GeoPoint(
      (int) (latitude * 1E6), (int) (longitude * 1E6)), null);

    canvas.drawCircle(position[count].x,position[count].y,10,paint1);

    count++;
   }
  }
 }
}