public Point GetScreenPoint(GoogleRectangle screenView)
{
if (Level != screenView.Level)
{
screenView = new GoogleRectangle(new CoordinateRectangle(screenView.LeftTop, screenView.RightBottom), Level);
}
return(new Point((int)(X - screenView.Left), (int)(Y - screenView.Top)));
}
public Point GetScreenPoint(GoogleRectangle screenView)
{
if (Level != screenView.Level)
{
screenView = new GoogleRectangle(new CoordinateRectangle(screenView.LeftTop, screenView.RightBottom), Level);
}
return new Point((int)(X - screenView.Left), (int)(Y - screenView.Top));
}
public Rectangle GetScreenRect(GoogleRectangle screenView)
{
if (Level != screenView.Level)
{
screenView = new GoogleRectangle(
new CoordinateRectangle(screenView.LeftTop, screenView.RightBottom), Level);
}
var pt1 = LeftTop.GetScreenPoint(screenView);
var pt2 = RightBottom.GetScreenPoint(screenView);
return(Rectangle.FromLTRB(pt1.X, pt1.Y, pt2.X, pt2.Y));
}
public Rectangle GetScreenRect(GoogleRectangle screenView)
{
return new GoogleRectangle(this, screenView.Level).GetScreenRect(screenView);
}
private void RedrawCables(GoogleRectangle localScreenView)
{
try
{
_lockCr.EnterReadLock();
if (_rCableTree.NodeCount == 0) return;
var res = _rCableTree.Query(localScreenView);
foreach (var node in res)
{
var row = (SimpleMapDb.CablesRow) node.Row;
var cabRect = new CoordinateRectangle(row.Longitude1, row.Latitude1, row.Longitude2, row.Latitude2);
var rect = cabRect.GetScreenRect(localScreenView);
DrawLine(rect, 2, Color.Blue);
if (Level >= 14)
{
var caption = row.Caption;
if (!String.IsNullOrEmpty(caption))
{
var coordinate = cabRect.LineMiddlePoint;
var point = coordinate.GetScreenPoint(localScreenView);
DrawString(caption, HalfVertexSize.Height, Point.Add(point, HalfVertexSize));
}
}
}
}
catch(Exception ex)
{
//do nothing
System.Diagnostics.Trace.WriteLine(ex.Message);
}
finally
{
_lockCr.ExitReadLock();
}
}
private void RedrawVertexes(GoogleRectangle localScreenView)
{
try
{
_lockVr.EnterReadLock();
if (_rVertexTree.NodeCount == 0) return;
var res = _rVertexTree.Query(localScreenView);
foreach (var node in res)
{
var row = (SimpleMapDb.VertexesRow) node.Row;
var coordinate = new Coordinate(row.Longitude, row.Latitude);
var pt = coordinate.GetScreenPoint(localScreenView);
DrawBitmap(Vertex, Point.Subtract(pt, HalfVertexSize));
if (Level >= 14)
{
var caption = row.Caption;
if (!String.IsNullOrEmpty(caption))
DrawString(caption, HalfVertexSize.Height, Point.Add(pt, HalfVertexSize));
}
}
}
catch (Exception ex)
{
//do nothing
System.Diagnostics.Trace.WriteLine(ex.Message);
}
finally
{
_lockVr.ExitReadLock();
}
}
public Rectangle GetScreenRect(GoogleRectangle screenView)
{
if (Level != screenView.Level)
{
screenView = new GoogleRectangle(
new CoordinateRectangle(screenView.LeftTop, screenView.RightBottom), Level);
}
var pt1 = LeftTop.GetScreenPoint(screenView);
var pt2 = RightBottom.GetScreenPoint(screenView);
return Rectangle.FromLTRB(pt1.X, pt1.Y, pt2.X, pt2.Y);
}
virtual protected void TranslateCoords()
{
_screenView = _centerCoordinate.GetScreenViewFromCenter(Width, Height, _level);
_coordinateView = ScreenView;
}
public static Coordinate GetCoordinateFromScreen(GoogleRectangle screenView, Point point)
{
return screenView.LeftTop + new GoogleCoordinate(point.X, point.Y, screenView.Level);
}
public Point GetScreenPoint(GoogleRectangle screenView)
{
return new GoogleCoordinate(this, screenView.Level).GetScreenPoint(screenView);
}
private bool DrawImages(Rectangle localBlockView, GoogleRectangle localScreenView)
{
for (var x = localBlockView.Left; x <= localBlockView.Right; x++)
{
for (var y = localBlockView.Top; y <= localBlockView.Bottom; y++)
{
var block = new GoogleBlock(x, y, Level);
var pt = ((GoogleCoordinate)block).GetScreenPoint(localScreenView);
var bmp = FindImage(block);
if (bmp != null)
{
DrawBitmap(bmp, pt);
}
else
{
DrawBitmap(_emptyBlock, pt);
PutMapThreadEvent(WorkerEventType.DownloadImage, block, EventPriorityType.Idle);
}
if (Terminating) return true;
if (localScreenView.CompareTo(ScreenView) != 0) return false;
}
}
return true;
}
