private Area createMapViewAreaForCenterImg(MapView mapView)
{
Point centerImgLocation = mapView.getCenterImgPosition();
GpsLocation gpsLoc = mapView.getGpsLocation();
int pixelsToLeftEdge = centerImgLocation.X;
int pixelsToTopEdge = centerImgLocation.Y;
Image centerPart = mapView.getImgByPoint(new Point(1, 1));
int pixelsToRightEdge = centerPart.Width - centerImgLocation.X;
int pixelsToBottomEdge = centerPart.Height - centerImgLocation.Y;
double latitudePerPixel = this.currentMapPkg.getLatitudePerPixel();
double longitudePerPixel = this.currentMapPkg.getLongitudePerPixel();
double topLeftLatitude = gpsLoc.getLatitude() + pixelsToTopEdge * latitudePerPixel;
double topLeftLongitude = gpsLoc.getLongitude() - pixelsToLeftEdge * longitudePerPixel;
double bottomRightLatitude = gpsLoc.getLatitude() - pixelsToBottomEdge * latitudePerPixel;
double bottomRightLongitude = gpsLoc.getLongitude() + pixelsToRightEdge * longitudePerPixel;
return new Area(topLeftLatitude, topLeftLongitude, bottomRightLatitude, bottomRightLongitude);
}
// TODO: this method is too big
public void createNew()
{
Debug.WriteLine("----- createCurrentView -----", ToString());
// container to keep map parts which create current map view
Hashtable viewParts = new Hashtable();
// get current gps coordinates
double latitude = this.currentGpsLocation.getLatitude();
double longitude = this.currentGpsLocation.getLongitude();
//Debug.WriteLine("latitude: " + latitude + ", longitude: " + longitude, this.ToString());
// get point which indicates part image for the location
Point partPoint = this.currentMapPkg.getPartPoint(latitude, longitude);
Debug.WriteLine("partPoint: " + PointUtil.pointStr(partPoint), ToString());
// get location (pixel coordinates) inside part image
Point insidePartPosition = this.currentMapPkg.getInsidePartPosition(latitude, longitude);
//Debug.WriteLine("insidePartPosition: (" + insidePartPosition.X + "; " + insidePartPosition.Y + ")", this.ToString());
// add center MapView point
Point centerViewPoint = new Point(1, 1);
viewParts[centerViewPoint] = this.currentMapPkg.getPart(partPoint);
// map view has only sense when there is center map part
if (viewParts[centerViewPoint] == null)
{
Debug.WriteLine("Can't get center part! viewParts[centerViewPoint] is null - skipping.", this.ToString());
// return when center part is null
this.currentMapVeiw = null;
return;
}
// add neighbours of center point
foreach (DictionaryEntry entry in this.pointSurroundings)
{
Point directionPoint = (Point)entry.Value;
Debug.WriteLine("directionPoint: " + PointUtil.pointStr(directionPoint), ToString());
Point viewNeighbour = PointMath.addPoints(centerViewPoint, directionPoint);
Point mapNeighbour = PointMath.addPoints(partPoint, directionPoint);
try
{
viewParts[viewNeighbour] = this.currentMapPkg.getPart(mapNeighbour);
if (viewParts[viewNeighbour] == null)
{
Debug.WriteLine("looking for view neighbour:", this.ToString());
MapPackage neighbourPkg = null;
int neighbourDirectionX = 0;
if (mapNeighbour.X > this.currentMapPkg.getMaxX())
neighbourDirectionX = 1;
if (mapNeighbour.X < 0)
neighbourDirectionX = -1;
int neighbourDirectionY = 0;
if (mapNeighbour.Y > this.currentMapPkg.getMaxY())
neighbourDirectionY = 1;
if (mapNeighbour.Y < 0)
neighbourDirectionY = -1;
Point neighbourDirection = new Point(neighbourDirectionX, neighbourDirectionY);
try
{
Debug.WriteLine(" trying to get neighbour pkg for neighbour point: " + PointUtil.pointStr(neighbourDirection), ToString());
// get neighbour map package
neighbourPkg = this.mapPkgRepository.getNeighbourMapPkg(this.currentMapPkg,
neighbourDirection, this.currentZoom);
}
catch (MapNotFoundException e)
{
Debug.WriteLine(" Can't get neighbour pkg for: " + this.currentMapPkg
+ ", dircetion: (" + directionPoint.X + "; " + directionPoint.Y + "), ERROR: " + e.Message, this.ToString());
}
if (neighbourPkg != null)
{
if (mapNeighbour.X > this.currentMapPkg.getMaxX())
mapNeighbour.X = 0;
if (mapNeighbour.X < 0)
mapNeighbour.X = neighbourPkg.getMaxX();
if (mapNeighbour.Y > this.currentMapPkg.getMaxY())
mapNeighbour.Y = 0;
if (mapNeighbour.Y < 0)
mapNeighbour.Y = neighbourPkg.getMaxY();
Debug.WriteLine(" getting map part from neighbour pkg for point: " + PointUtil.pointStr(mapNeighbour), this.ToString());
viewParts[viewNeighbour] = neighbourPkg.getPart(mapNeighbour);
}
}
else
Debug.WriteLine("view neighbour ok", this.ToString());
}
catch (Exception e)
{
Debug.WriteLine("Can't get neighbour(" + entry.Key + ")! ERROR: " + e.Message, this.ToString());
}
}
// create map view
MapView mapView = new MapView(this.currentGpsLocation, insidePartPosition,
viewParts, this.orderingPoints);
mapView.setLatitudePerPixel(this.currentMapPkg.getLatitudePerPixel());
mapView.setLongitudePerPixel(this.currentMapPkg.getLongitudePerPixel());
Area mapViewArea = createMapViewArea(mapView);
Area centerImgArea = createMapViewAreaForCenterImg(mapView);
mapView.setArea(mapViewArea);
mapView.setCenterImgArea(centerImgArea);
Debug.WriteLine("-----------------------------\n", ToString());
this.currentMapVeiw = mapView;
}
private Area createMapViewArea(MapView mapView)
{
Area afci = createMapViewAreaForCenterImg(mapView);
Image topLeftPart = mapView.getImgByPoint(new Point(0, 0));
double latitudeTopEdgeFix = topLeftPart.Size.Height * this.currentMapPkg.getLatitudePerPixel();
double longitudeLeftEdgeFix = topLeftPart.Size.Width * this.currentMapPkg.getLongitudePerPixel();
Image bottomRightPart = mapView.getImgByPoint(new Point(2, 2));
double latitudeBottomEdgeFix = bottomRightPart.Height * this.currentMapPkg.getLatitudePerPixel();
double longitudeRghtEdgeFix = bottomRightPart.Width * this.currentMapPkg.getLongitudePerPixel();
return new Area(afci.getTopLeftLatitude() + latitudeTopEdgeFix,
afci.getTopLeftLongitude() - longitudeLeftEdgeFix,
afci.getBottomRightLatitude() - latitudeBottomEdgeFix,
afci.getBottomRightLongitude() + longitudeRghtEdgeFix);
}
