public InterseptResult LineContains(CoordinateRectangle line)
{
var iLeftTop = PointContains(line.LeftTop) != InterseptResult.None;
var iRightBottom = PointContains(line.RightBottom) != InterseptResult.None;
if (iLeftTop && iRightBottom)
{
return(InterseptResult.Contains);
}
if (iLeftTop || iRightBottom)
{
return(InterseptResult.Intersepts);
}
if (GoogleMapUtilities.CheckLinesInterseption(new CoordinateRectangle(Left, Top, Right, Top), line))
{
return(InterseptResult.Intersepts);
}
if (GoogleMapUtilities.CheckLinesInterseption(new CoordinateRectangle(Right, Top, Right, Bottom), line))
{
return(InterseptResult.Intersepts);
}
if (GoogleMapUtilities.CheckLinesInterseption(new CoordinateRectangle(Left, Bottom, Right, Bottom), line))
{
return(InterseptResult.Intersepts);
}
if (GoogleMapUtilities.CheckLinesInterseption(new CoordinateRectangle(Left, Top, Left, Bottom), line))
{
return(InterseptResult.Intersepts);
}
return(InterseptResult.None);
}
public static Coordinate GetNearestPoint(CoordinateRectangle line, Coordinate pt)
{
const double r2D = 180 / Math.PI; // Константа для преобразования радиан в градусы
var a = GetLength(line.LeftTop, line.RightBottom);
if (a <= 0)
return pt;
var b = GetLength(line.LeftTop, pt);
var c = GetLength(line.RightBottom, pt);
var enB = Math.Acos((Math.Pow(a, 2) + Math.Pow(b, 2) - Math.Pow(c, 2)) / (2 * a * b)) * r2D;
if (enB >= 90)
return pt;
var enC = Math.Acos((Math.Pow(a, 2) + Math.Pow(c, 2) - Math.Pow(b, 2)) / (2 * a * c)) * r2D;
if (enC >= 90)
return pt;
var x = ((line.Right - line.Left) * (line.Bottom - line.Top) * (pt.Latitude - line.Top) +
line.Left * Math.Pow(line.Bottom - line.Top, 2) + pt.Longitude*Math.Pow(line.Right - line.Left, 2)) /
(Math.Pow(line.Bottom - line.Top, 2) + Math.Pow(line.Right - line.Left, 2));
var y = (line.Bottom - line.Top) * (x - line.Left) / (line.Right - line.Left) + line.Top;
return new Coordinate(x,y);
}
public static Coordinate GetNearestPoint(CoordinateRectangle line, Coordinate pt)
{
const double r2D = 180 / Math.PI; // Константа для преобразования радиан в градусы
var a = GetLength(line.LeftTop, line.RightBottom);
if (a <= 0)
{
return(pt);
}
var b = GetLength(line.LeftTop, pt);
var c = GetLength(line.RightBottom, pt);
var enB = Math.Acos((Math.Pow(a, 2) + Math.Pow(b, 2) - Math.Pow(c, 2)) / (2 * a * b)) * r2D;
if (enB >= 90)
{
return(pt);
}
var enC = Math.Acos((Math.Pow(a, 2) + Math.Pow(c, 2) - Math.Pow(b, 2)) / (2 * a * c)) * r2D;
if (enC >= 90)
{
return(pt);
}
var x = ((line.Right - line.Left) * (line.Bottom - line.Top) * (pt.Latitude - line.Top) +
line.Left * Math.Pow(line.Bottom - line.Top, 2) + pt.Longitude * Math.Pow(line.Right - line.Left, 2)) /
(Math.Pow(line.Bottom - line.Top, 2) + Math.Pow(line.Right - line.Left, 2));
var y = (line.Bottom - line.Top) * (x - line.Left) / (line.Right - line.Left) + line.Top;
return(new Coordinate(x, y));
}
/// <summary>
/// Приблизительное растояние от точки до отрезка прямой
/// Передаваемые широта/долгота в градусах и сотых долях
/// </summary>
public static double GetDistance(CoordinateRectangle line, Coordinate pt)
{
const double r2D = 180 / Math.PI; // Константа для преобразования радиан в градусы
var a = GetLength(line.LeftTop, line.RightBottom);
var b = GetLength(line.LeftTop, pt);
var c = GetLength(line.RightBottom, pt);
if (a <= 0)
{
return((b + c) / 2);
}
var enB = Math.Acos((Math.Pow(a, 2) + Math.Pow(b, 2) - Math.Pow(c, 2)) / (2 * a * b)) * r2D;
if (enB >= 90)
{
return(b);
}
var enC = Math.Acos((Math.Pow(a, 2) + Math.Pow(c, 2) - Math.Pow(b, 2)) / (2 * a * c)) * r2D;
if (enC >= 90)
{
return(c);
}
var s = (a + b + c) / 2;
var ar = Math.Sqrt(s * (s - a) * (s - b) * (s - c));
return(ar * 2 / a);
}
public InterseptResult RectangleContains(CoordinateRectangle rectangle)
{
var iLeftTop = PointContains(rectangle.LeftTop) != InterseptResult.None;
var iRightBottom = PointContains(rectangle.RightBottom) != InterseptResult.None;
if (iLeftTop && iRightBottom)
{
return(InterseptResult.Contains);
}
if (iLeftTop || iRightBottom)
{
return(InterseptResult.Intersepts);
}
if (PointContains(rectangle.LeftBottom) != InterseptResult.None)
{
return(InterseptResult.Intersepts);
}
if (PointContains(rectangle.RightTop) != InterseptResult.None)
{
return(InterseptResult.Intersepts);
}
iLeftTop = rectangle.PointContains(LeftTop) != InterseptResult.None;
iRightBottom = rectangle.PointContains(RightBottom) != InterseptResult.None;
if (iLeftTop && iRightBottom)
{
return(InterseptResult.Supersets);
}
if (iLeftTop || iRightBottom)
{
return(InterseptResult.Intersepts);
}
if (rectangle.PointContains(LeftBottom) != InterseptResult.None)
{
return(InterseptResult.Intersepts);
}
if (rectangle.PointContains(RightTop) != InterseptResult.None)
{
return(InterseptResult.Intersepts);
}
if (GoogleMapUtilities.CheckLinesInterseption(new CoordinateRectangle(Left, Top, Left, Bottom),
new CoordinateRectangle(rectangle.Left, rectangle.Top, rectangle.Right, rectangle.Top)))
{
return(InterseptResult.Intersepts);
}
if (GoogleMapUtilities.CheckLinesInterseption(new CoordinateRectangle(Left, Top, Right, Top),
new CoordinateRectangle(rectangle.Left, rectangle.Top, rectangle.Left, rectangle.Bottom)))
{
return(InterseptResult.Intersepts);
}
return(InterseptResult.None);
}
public bool IncludeTo(CoordinateRectangle rect)
{
for (var i = 0; i < Coordinates.Count; i++)
{
if (rect.PointContains(Coordinates[i]) != InterseptResult.Contains)
return false;
}
return true;
}
public bool IncludeTo(CoordinateRectangle rect)
{
for (var i = 0; i < Coordinates.Count; i++)
{
if (rect.PointContains(Coordinates[i]) != InterseptResult.Contains)
{
return(false);
}
}
return(true);
}
public bool Add(Coordinate coordinate)
{
if (Count > 2)
{
var line1 = new CoordinateRectangle(First, coordinate);
var line2 = new CoordinateRectangle(Last, coordinate);
for (var i = 0; i < Count - 1; i++)
{
if (GoogleMapUtilities.CheckLinesInterseption(this[i], line1)
|| GoogleMapUtilities.CheckLinesInterseption(this[i], line2))
return false;
}
}
Coordinates.Add(coordinate);
return true;
}
public bool Add(Coordinate coordinate)
{
if (Count > 2)
{
var line1 = new CoordinateRectangle(First, coordinate);
var line2 = new CoordinateRectangle(Last, coordinate);
for (var i = 0; i < Count - 1; i++)
{
if (GoogleMapUtilities.CheckLinesInterseption(this[i], line1) ||
GoogleMapUtilities.CheckLinesInterseption(this[i], line2))
{
return(false);
}
}
}
Coordinates.Add(coordinate);
return(true);
}
/// <summary>
/// Приблизительное растояние от точки до отрезка прямой
/// Передаваемые широта/долгота в градусах и сотых долях
/// </summary>
public static double GetDistance(CoordinateRectangle line, Coordinate pt)
{
const double r2D = 180 / Math.PI; // Константа для преобразования радиан в градусы
var a = GetLength(line.LeftTop, line.RightBottom);
var b = GetLength(line.LeftTop, pt);
var c = GetLength(line.RightBottom, pt);
if (a <= 0)
return (b + c) / 2;
var enB = Math.Acos((Math.Pow(a, 2) + Math.Pow(b, 2) - Math.Pow(c, 2)) / (2 * a * b)) * r2D;
if (enB >= 90)
return b;
var enC = Math.Acos((Math.Pow(a, 2) + Math.Pow(c, 2) - Math.Pow(b, 2)) / (2 * a * c)) * r2D;
if (enC >= 90)
return c;
var s = (a + b + c) / 2;
var ar = Math.Sqrt(s * (s - a) * (s - b) * (s - c));
return ar * 2 / a;
}
public InterseptResult LineContains(CoordinateRectangle line)
{
var iLeftTop = PointContains(line.LeftTop) != InterseptResult.None;
var iRightBottom = PointContains(line.RightBottom) != InterseptResult.None;
if (iLeftTop && iRightBottom)
return InterseptResult.Contains;
if (iLeftTop || iRightBottom)
return InterseptResult.Intersepts;
if (GoogleMapUtilities.CheckLinesInterseption(new CoordinateRectangle(Left, Top, Right, Top), line))
return InterseptResult.Intersepts;
if (GoogleMapUtilities.CheckLinesInterseption(new CoordinateRectangle(Right, Top, Right, Bottom), line))
return InterseptResult.Intersepts;
if (GoogleMapUtilities.CheckLinesInterseption(new CoordinateRectangle(Left, Bottom, Right, Bottom), line))
return InterseptResult.Intersepts;
if (GoogleMapUtilities.CheckLinesInterseption(new CoordinateRectangle(Left, Top, Left, Bottom), line))
return InterseptResult.Intersepts;
return InterseptResult.None;
}
public InterseptResult RectangleContains(CoordinateRectangle coordinate)
{
//to do
return InterseptResult.None;
}
public InterseptResult RectangleContains(CoordinateRectangle rectangle)
{
var iLeftTop = PointContains(rectangle.LeftTop) != InterseptResult.None;
var iRightBottom = PointContains(rectangle.RightBottom) != InterseptResult.None;
if (iLeftTop && iRightBottom)
return InterseptResult.Contains;
if (iLeftTop || iRightBottom)
return InterseptResult.Intersepts;
if (PointContains(rectangle.LeftBottom) != InterseptResult.None)
return InterseptResult.Intersepts;
if (PointContains(rectangle.RightTop) != InterseptResult.None)
return InterseptResult.Intersepts;
iLeftTop = rectangle.PointContains(LeftTop) != InterseptResult.None;
iRightBottom = rectangle.PointContains(RightBottom) != InterseptResult.None;
if (iLeftTop && iRightBottom)
return InterseptResult.Supersets;
if (iLeftTop || iRightBottom)
return InterseptResult.Intersepts;
if (rectangle.PointContains(LeftBottom) != InterseptResult.None)
return InterseptResult.Intersepts;
if (rectangle.PointContains(RightTop) != InterseptResult.None)
return InterseptResult.Intersepts;
if (GoogleMapUtilities.CheckLinesInterseption(new CoordinateRectangle(Left, Top, Left, Bottom),
new CoordinateRectangle(rectangle.Left, rectangle.Top, rectangle.Right, rectangle.Top)))
return InterseptResult.Intersepts;
if (GoogleMapUtilities.CheckLinesInterseption(new CoordinateRectangle(Left, Top, Right, Top),
new CoordinateRectangle(rectangle.Left, rectangle.Top, rectangle.Left, rectangle.Bottom)))
return InterseptResult.Intersepts;
return InterseptResult.None;
}
public InterseptResult PoligonContains(CoordinateRectangle coordinate)
{
//to do
return(InterseptResult.None);
}
virtual protected void TranslateCoords()
{
_screenView = _centerCoordinate.GetScreenViewFromCenter(Width, Height, _level);
_coordinateView = ScreenView;
}
public HashItem[] FindNearestCable(Coordinate pt)
{
var list = new NearestSet();
try
{
_lockCr.EnterReadLock();
if (_rCableTree.NodeCount == 0)
return list.ToArray();
var res = _rCableTree.Distance(pt, CoordinateTolerance);
foreach (var node in res)
{
var row = (SimpleMapDb.CablesRow)node.Row;
var cableRect = new CoordinateRectangle(row.Longitude1, row.Latitude1, row.Longitude2, row.Latitude2);
var distance = cableRect.LineDistance(pt);
list.Add(new HashItem(distance, row.ID));
}
}
finally
{
_lockCr.ExitReadLock();
}
return list.OrderBy(item => item.Key).ToArray();
}
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 GenerateSampleData()
{
_netLayer.ClearData();
//--sample for show smothness
var rnd = new Random();
var rangeX = Convert.ToInt32((Settings.Default.RightMapBound - Settings.Default.LeftMapBound) * 100000);
var rangeY = Convert.ToInt32((Settings.Default.TopMapBound - Settings.Default.BottomMapBound) * 100000);
var longitude1 = Convert.ToDecimal(Settings.Default.LeftMapBound + (double) rnd.Next(0, rangeX)/100000);
var latitude1 = Convert.ToDecimal(Settings.Default.BottomMapBound + (double)rnd.Next(0, rangeY) / 100000);
var cableDbRows = new SimpleMapDb.CablesDataTable();
var vertexDbRows = new SimpleMapDb.VertexesDataTable();
while (cableDbRows.Count < 200)
{
var cableRow = cableDbRows.NewCablesRow();
cableRow.Longitude1 = longitude1;
cableRow.Latitude1 = latitude1;
cableRow.Longitude2 = Convert.ToDecimal(Settings.Default.LeftMapBound + (double)rnd.Next(0, rangeX) / 100000);
cableRow.Latitude2 = Convert.ToDecimal(Settings.Default.BottomMapBound + (double)rnd.Next(0, rangeY) / 100000);
var rect = new CoordinateRectangle(cableRow.Longitude1, cableRow.Latitude1, cableRow.Longitude2, cableRow.Latitude2);
cableRow.Length = Convert.ToDecimal(rect.LineLength);
if (cableRow.Length <= 5000 && cableRow.Length > 200)
{
longitude1 = cableRow.Longitude2;
latitude1 = cableRow.Latitude2;
cableRow.Caption = rect.ToString();
cableDbRows.AddCablesRow(cableRow);
var vertexRow = vertexDbRows.NewVertexesRow();
vertexRow.Longitude = longitude1;
vertexRow.Latitude = latitude1;
var pt = new Coordinate(vertexRow.Longitude, vertexRow.Latitude);
vertexRow.Caption = pt.ToString();
vertexDbRows.AddVertexesRow(vertexRow);
}
}
_netLayer.MergeData(vertexDbRows);
_netLayer.MergeData(cableDbRows);
//--end sample
}
private void DownloadThread(CancellationToken ct)
{
var leftBound = new Coordinate(Properties.Settings.Default.LeftMapBound, Properties.Settings.Default.TopMapBound);
var rightBound = new Coordinate(Properties.Settings.Default.RightMapBound, Properties.Settings.Default.BottomMapBound);
var rectBound = new CoordinateRectangle(leftBound, rightBound);
var mapBlockCount = 0;
for (var mapLevel = Properties.Settings.Default.MinZoomLevel; mapLevel <= Properties.Settings.Default.MaxZoomLevel; mapLevel++)
{
var mapWidth = Convert.ToInt32((new GoogleCoordinate(rectBound.RightTop, mapLevel)).X - (new GoogleCoordinate(rectBound.LeftTop, mapLevel)).X) + 2 * GoogleBlock.BlockSize;
var mapHeight = Convert.ToInt32((new GoogleCoordinate(rectBound.LeftBottom, mapLevel)).Y - (new GoogleCoordinate(rectBound.LeftTop, mapLevel)).Y) + 2 * GoogleBlock.BlockSize;
var viewBound = rectBound.LineMiddlePoint.GetScreenViewFromCenter(mapWidth, mapHeight, mapLevel);
var blockView = viewBound.BlockView;
mapBlockCount += (blockView.Right - blockView.Left + 1) * (blockView.Bottom - blockView.Top + 1);
}
var mapBlockNumber = 0;
BeginInvoke(ProgressEvent, new Object[] {mapBlockNumber * 100 / mapBlockCount, mapBlockNumber, mapBlockCount});
for (var mapLevel = Properties.Settings.Default.MinZoomLevel; mapLevel <= Properties.Settings.Default.MaxZoomLevel; mapLevel++)
{
var mapWidth = Convert.ToInt32((new GoogleCoordinate(rectBound.RightTop, mapLevel)).X - (new GoogleCoordinate(rectBound.LeftTop, mapLevel)).X) + 2 * GoogleBlock.BlockSize;
var mapHeight = Convert.ToInt32((new GoogleCoordinate(rectBound.LeftBottom, mapLevel)).Y - (new GoogleCoordinate(rectBound.LeftTop, mapLevel)).Y) + 2 * GoogleBlock.BlockSize;
var viewBound = rectBound.LineMiddlePoint.GetScreenViewFromCenter(mapWidth, mapHeight, mapLevel);
var blockView = viewBound.BlockView;
for (var x = blockView.Left; x <= blockView.Right; x++)
{
for (var y = blockView.Top; y <= blockView.Bottom; y++)
{
var block = new GoogleBlock(x, y, mapLevel);
var fileName = Properties.Settings.GetMapFileName(block);
if (!File.Exists(fileName))
MapLayer.DownloadImageFromGoogle(block, false);
mapBlockNumber++;
BeginInvoke(ProgressEvent, new Object[] {mapBlockNumber * 100 / mapBlockCount, mapBlockNumber, mapBlockCount});
if (ct.IsCancellationRequested)
return;
}
}
}
BeginInvoke(ProgressEvent, new Object[] {101, mapBlockNumber, mapBlockCount});
}
private void GetFullMapThread(CancellationToken ct)
{
var leftBound = new Coordinate(Properties.Settings.Default.LeftMapBound, Properties.Settings.Default.TopMapBound);
var rightBound = new Coordinate(Properties.Settings.Default.RightMapBound, Properties.Settings.Default.BottomMapBound);
var rectBound = new CoordinateRectangle(leftBound, rightBound);
try
{
var mapWidth = Convert.ToInt32((new GoogleCoordinate(rectBound.RightTop, _mapLevel)).X - (new GoogleCoordinate(rectBound.LeftTop, _mapLevel)).X) + 2 * GoogleBlock.BlockSize;
var mapHeight = Convert.ToInt32((new GoogleCoordinate(rectBound.LeftBottom, _mapLevel)).Y - (new GoogleCoordinate(rectBound.LeftTop, _mapLevel)).Y) + 2 * GoogleBlock.BlockSize;
var image = GraphicLayer.CreateCompatibleBitmap(null, mapWidth, mapHeight, _mapPiFormat);
var graphics = Graphics.FromImage(image);
var viewBound = rectBound.LineMiddlePoint.GetScreenViewFromCenter(mapWidth, mapHeight, _mapLevel);
var blockView = viewBound.BlockView;
var mapBlockCount = (blockView.Right - blockView.Left + 1) * (blockView.Bottom - blockView.Top + 1);
var mapBlockNumber = 0;
BeginInvoke(ProgressEvent, new Object[] {mapBlockNumber * 100 / mapBlockCount, mapBlockNumber, mapBlockCount});
for (var x = blockView.Left; x <= blockView.Right; x++)
{
for (var y = blockView.Top; y <= blockView.Bottom; y++)
{
var block = new GoogleBlock(x, y, _mapLevel);
var bmp = GraphicLayer.CreateCompatibleBitmap(
MapLayer.DownloadImageFromFile(block) ?? MapLayer.DownloadImageFromGoogle(block, true),
GoogleBlock.BlockSize, GoogleBlock.BlockSize, _mapPiFormat);
var rect = ((GoogleRectangle) block).GetScreenRect(viewBound);
graphics.DrawImageUnscaled(bmp, rect.Location.X, rect.Location.Y);
mapBlockNumber++;
BeginInvoke(ProgressEvent, new Object[]{mapBlockNumber * 100 / mapBlockCount, mapBlockNumber, mapBlockCount});
if (ct.IsCancellationRequested)
return;
}
}
BeginInvoke(SaveMapEvent, new Object[] {image});
}
catch (Exception e)
{
BeginInvoke(ProgressEvent, new Object[] { 101, 0, 0 });
MessageBox.Show(e.Message, @"Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}