public Playground()
{
InitializeComponent();
Contracts.IObservable observable = new Observable();
Contracts.IObserver <MessageModel> observer = new BPoint();
observable.AddObserver(observer);
}
/// <summary>
/// 路线起点选中
/// </summary>
/// <param name="bPoint"></param>
void Origin_StepEndPointSelected(BPoint bPoint)
{
if (StepEndPointSelected != null)
{
StepEndPointSelected(bPoint);
}
}
public override void Draw()
{
foreach (var penLine in _penLines)
{
foreach (var point in penLine.GetPoints())
{
var pixelSize = penLine.Size;
var pointX = point.X;
var pointY = point.Y;
for (int i = pointX - pixelSize; i < pointX + pixelSize; i++)
{
for (int j = pointY - pixelSize; j < pointY + pixelSize; j++)
{
if (CanvasValidator.IsCursorOutsideCanvas(new Point(i, j)))
{
continue;
}
var newPoint = new BPoint(i, j, point.Color);
_bitmap.SetPixel(newPoint);
}
}
}
}
}
/// <summary>
/// 射线法判断点在任意多边形内
/// </summary>
/// <param name="p"></param>
/// <param name="polygon"></param>
/// <returns></returns>
public static bool IsPointInsidePolygon(BPoint <double> p, ref BPoint <double>[] polygon)
{
int cross_count = 0;
for (int i = 0; i < polygon.Length; i++)
{
BPoint <double> p1 = polygon[i];
BPoint <double> p2 = polygon[(i + 1) % polygon.Length];
//线段水平
if (p1.Y == p2.Y)
{
continue;
}
//射线在线段外
if (p.Y >= Math.Max(p1.Y, p2.Y) || p.Y <= Math.Min(p1.Y, p2.Y))
{
continue;
}
double dy = (p2.X - p1.X) / (p2.Y - p1.Y);
double x = (p.Y - p1.Y) * (p2.X - p1.X) / (p2.Y - p1.Y) + p1.X;;
if (x > p.X)
{
cross_count++;
}
}
return(cross_count % 2 == 1);
}
/// <summary>
/// 路线终点选中
/// </summary>
/// <param name="bPoint"></param>
void Destination_StepEndPointSelected(BPoint bPoint)
{
if (StepEndPointSelected != null)
{
StepEndPointSelected(bPoint);
}
}
//向量法判断点在凸多边形内
static public bool Compl_inside_convex(BPoint <double> p, ref BPoint <double>[] con, int n)
{
if (n < 3)
{
return(false);
}
if (cross(con[0], p, con[1]) >= 0)
{
return(false);
}
if (cross(con[0], p, con[n - 1]) <= 0)
{
return(false);
}
int i = 2, j = n - 1;
int line = -1;
while (i <= j)
{
int mid = (i + j) >> 1;
if (cross(con[0], p, con[mid]) >= 0)
{
line = mid;
j = mid - 1;
}
else
{
i = mid + 1;
}
}
return(cross(con[line - 1], p, con[line]) < 0);
}
/// <summary>
/// 路线起点终点选中
/// </summary>
/// <param name="bPoint"></param>
void item_StepEndPointSelected(BPoint bPoint)
{
//
if (BMapControl != null)
{
BMapControl.SelectBPoint(bPoint);
}
}
/// <summary>
/// On SaveDrawing perform color fill algorithm
/// </summary>
/// <param name="mousePositions"></param>
public override void SaveDrawing(HashSet <Point> mousePositions)
{
if (mousePositions.Count == 0)
{
return;
}
var startPoint = BPoint.ConvertPointToIBPoint(mousePositions.ElementAt(0));
startPoint.Color = _bitmap.GetPixel(startPoint.X, startPoint.Y);
_colorFillingAlgorithm.Fill(startPoint, _bitmap.GetPixel(startPoint.X, startPoint.Y));
}
public override void PreviewDrawing(HashSet <Point> mousePositions)
{
if (mousePositions.Count == 1)
{
_lastPreviewCirclePoints = new HashSet <IBPoint>();
}
foreach (var point in _lastPreviewCirclePoints)
{
_bitmap.SetPixel(point.X, point.Y, point.Color);
}
_lastPreviewCirclePoints = new HashSet <IBPoint>();
var startPoint = mousePositions.ElementAt(0);
var endPoint = mousePositions.ElementAt(mousePositions.Count - 1);
var center = new Point((startPoint.X + endPoint.X) / 2, (startPoint.Y + endPoint.Y) / 2);
var radius = (int)CustomPoint.GetDistance(startPoint.X, startPoint.Y, center.X, center.Y);
var points = _circleAlgorithm.GetCirclePoints(BPoint.ConvertPointToIBPoint(center), radius);
var finalPoints = new List <IBPoint>();
var pixelSize = Setting.SelectedPixelSize;
var pixelColor = Setting.SelectedColor;
foreach (var point in points)
{
for (int i = point.X - pixelSize; i < point.X + pixelSize; i++)
{
for (int j = point.Y - pixelSize; j < point.Y + pixelSize; j++)
{
if (CanvasValidator.IsCursorOutsideCanvas(new Point(i, j)))
{
continue;
}
var newPoint = new BPoint(i, j, pixelColor);
var currentPixel = _bitmap.GetPixel(i, j);
var bPoint = new BPoint(i, j, Color.FromArgb(currentPixel.A, currentPixel.R, currentPixel.G, currentPixel.B));
_lastPreviewCirclePoints.Add(bPoint);
_bitmap.SetPixel(newPoint);
}
}
}
}
public override void PreviewDrawing(HashSet <Point> mousePositions)
{
if (mousePositions.Count == 1)
{
_lastPreviewPoints = new HashSet <IBPoint>();
}
var startPoint = mousePositions.ElementAt(0);
var endPoint = mousePositions.ElementAt(mousePositions.Count - 1);
var linePoints = _bresenhamLine.GetPointsOnLine(startPoint.X, startPoint.Y, endPoint.X, endPoint.Y);
if (mousePositions.Count == 1)
{
_lastPreviewPoints = new HashSet <IBPoint>();
}
foreach (var point in _lastPreviewPoints)
{
_bitmap.SetPixel(point.X, point.Y, point.Color);
}
_lastPreviewPoints = new HashSet <IBPoint>();
var pixelSize = Setting.SelectedPixelSize;
var pixelColor = Setting.SelectedColor;
foreach (var point in linePoints)
{
for (int i = point.X - pixelSize; i < point.X + pixelSize; i++)
{
for (int j = point.Y - pixelSize; j < point.Y + pixelSize; j++)
{
if (CanvasValidator.IsCursorOutsideCanvas(new Point(i, j)))
{
continue;
}
var newPoint = new BPoint(i, j, pixelColor);
var currentPixel = _bitmap.GetPixel(i, j);
var bPoint = new BPoint(i, j, Color.FromArgb(currentPixel.A, currentPixel.R, currentPixel.G, currentPixel.B));
_lastPreviewPoints.Add(bPoint);
_bitmap.SetPixel(newPoint);
}
}
}
}
public override void PreviewDrawing(HashSet <Point> points)
{
if (points.Count < 0)
{
return;
}
if (points.Count == 1)
{
var point = points.ElementAt(0);
_bitmap.SetPixel(new BPoint(point.X, point.Y));
}
else
{
var startPoint = points.ElementAt(points.Count - 2);
var endPoint = points.ElementAt(points.Count - 1);
var linePoints = _bresenhamLine.GetPointsOnLine(startPoint.X, startPoint.Y, endPoint.X, endPoint.Y);
_bitmap.SetPixel(BPoint.ConvertPointToIBPoint(startPoint));
_bitmap.SetPixel(BPoint.ConvertPointToIBPoint(endPoint));
foreach (var point in linePoints)
{
var pixelSize = Setting.SelectedPixelSize;
var pointX = point.X;
var pointY = point.Y;
for (int i = pointX - pixelSize; i < pointX + pixelSize; i++)
{
for (int j = pointY - pixelSize; j < pointY + pixelSize; j++)
{
if (CanvasValidator.IsCursorOutsideCanvas(new Point(i, j)))
{
continue;
}
var newPoint = new BPoint(i, j, Setting.SelectedColor);
_bitmap.SetPixel(newPoint);
}
}
}
}
}
public override void SaveDrawing(HashSet <Point> mousePositions)
{
var startPoint = mousePositions.ElementAt(0);
var endPoint = mousePositions.ElementAt(mousePositions.Count - 1);
var center = new Point((startPoint.X + endPoint.X) / 2, (startPoint.Y + endPoint.Y) / 2);
var radius = (int)CustomPoint.GetDistance(startPoint.X, startPoint.Y, center.X, center.Y);
var points = _circleAlgorithm.GetCirclePoints(BPoint.ConvertPointToIBPoint(center), radius);
var finalPoints = new List <IBPoint>();
foreach (var point in points)
{
finalPoints.Add(new BPoint(point.X, point.Y));
}
var circle = new CircleModel(finalPoints, BPoint.ConvertPointToIBPoint(center), radius);
Add(circle);
}
public override void SaveDrawing(HashSet <Point> mousePositions)
{
var startPoint = mousePositions.ElementAt(0);
var endPoint = mousePositions.ElementAt(mousePositions.Count - 1);
var radius = (int)BPoint.GetDistance(startPoint.X, startPoint.Y, endPoint.X, endPoint.Y);
var leftPoint = new BPoint(0, 0);
var rightPoint = new BPoint(0, 0);
//Check if mouse is under start point or above
if (startPoint.Y > endPoint.Y)
{
leftPoint = new BPoint(startPoint.X - radius, startPoint.Y - radius);
rightPoint = new BPoint(startPoint.X + radius, startPoint.Y - radius);
}
else
{
leftPoint = new BPoint(startPoint.X - radius, startPoint.Y + radius);
rightPoint = new BPoint(startPoint.X + radius, startPoint.Y + radius);
}
var pointsFromStartToLeft = _bresenhamLine.GetPointsOnLine(startPoint.X, startPoint.Y, leftPoint.X, leftPoint.Y);
var pointsFromStartToRight = _bresenhamLine.GetPointsOnLine(startPoint.X, startPoint.Y, rightPoint.X, rightPoint.Y);
var pointsFromLeftToRight = _bresenhamLine.GetPointsOnLine(leftPoint.X, leftPoint.Y, rightPoint.X, rightPoint.Y);
var megredPoints = pointsFromStartToLeft.Concat(pointsFromStartToRight);
megredPoints = megredPoints.Concat(pointsFromLeftToRight);
var finalPoints = new List <IBPoint>();
foreach (var point in megredPoints)
{
finalPoints.Add(new BPoint(point.X, point.Y));
}
var triangle = new TriangleModel(finalPoints, BPoint.ConvertPointToIBPoint(startPoint), radius);
Add(triangle);
}
public override void PreviewDrawing(HashSet <Point> mousePositions)
{
if (mousePositions.Count == 1)
{
_lastPreviewPoints = new HashSet <IBPoint>();
}
foreach (var point in _lastPreviewPoints)
{
_bitmap.SetPixel(point.X, point.Y, point.Color);
}
var startPoint = mousePositions.ElementAt(0);
var endPoint = mousePositions.ElementAt(mousePositions.Count - 1);
var radius = (int)BPoint.GetDistance(startPoint.X, startPoint.Y, endPoint.X, endPoint.Y);
var leftPoint = new BPoint(0, 0);
var rightPoint = new BPoint(0, 0);
//Check if mouse is under start point or above
if (startPoint.Y > endPoint.Y)
{
leftPoint = new BPoint(startPoint.X - radius, startPoint.Y - radius);
rightPoint = new BPoint(startPoint.X + radius, startPoint.Y - radius);
}
else
{
leftPoint = new BPoint(startPoint.X - radius, startPoint.Y + radius);
rightPoint = new BPoint(startPoint.X + radius, startPoint.Y + radius);
}
var pointsFromStartToLeft = _bresenhamLine.GetPointsOnLine(startPoint.X, startPoint.Y, leftPoint.X, leftPoint.Y);
var pointsFromStartToRight = _bresenhamLine.GetPointsOnLine(startPoint.X, startPoint.Y, rightPoint.X, rightPoint.Y);
var pointsFromLeftToRight = _bresenhamLine.GetPointsOnLine(leftPoint.X, leftPoint.Y, rightPoint.X, rightPoint.Y);
var megredPoints = pointsFromStartToLeft.Concat(pointsFromStartToRight);
megredPoints = megredPoints.Concat(pointsFromLeftToRight);
foreach (var point in megredPoints)
{
var pixelSize = Setting.SelectedPixelSize;
var pointX = point.X;
var pointY = point.Y;
for (int i = pointX - pixelSize; i < pointX + pixelSize; i++)
{
for (int j = pointY - pixelSize; j < pointY + pixelSize; j++)
{
if (CanvasValidator.IsCursorOutsideCanvas(new Point(i, j)))
{
continue;
}
var newPoint = new BPoint(i, j, Setting.SelectedColor);
var currentPixel = _bitmap.GetPixel(i, j);
var bPoint = new BPoint(i, j, Color.FromArgb(currentPixel.A, currentPixel.R, currentPixel.G, currentPixel.B));
_lastPreviewPoints.Add(bPoint);
_bitmap.SetPixel(newPoint);
}
}
}
}
//向量叉积,判断P2是否在P1-P3向量右侧true，左侧false
static public double cross(BPoint <double> p1, BPoint <double> p2, BPoint <double> p3)
{
return((p2.X - p1.X) * (p3.Y - p1.Y) - (p3.X - p1.X) * (p2.Y - p1.Y));
}
/// <summary>
/// 开启搜索
/// </summary>
internal void StartSearch()
{
flpRoutes.Controls.Clear();
if (BMapControl != null)
{
BMapControl.SetRoute(null); //
BMapControl.SetRouteStartAndEnd(null, null);
}
if (BPlacesBoard != null) //位置列表初始化
{
BPlacesBoard.Clear();
}
_wait.Visible = true; //等待
((Action) delegate()
{
JObject routes;
DirectionV1Service ds = new DirectionV1Service();
if (_current_method == 0) //公交
{
if (bPlaceBoxSource.City != "" && bPlaceBoxDestination.City != "" && bPlaceBoxSource.City != bPlaceBoxDestination.City)
{
MessageBox.Show("公交导航时，两地城市必须一致！");
return;
}
routes = ds.DirectionByTransit(bPlaceBoxSource.QueryText, bPlaceBoxDestination.QueryText, _currentCity);
}
else if (_current_method == 1) //驾车
{
routes = ds.DirectionByDriving(bPlaceBoxSource.QueryText, bPlaceBoxDestination.QueryText, bPlaceBoxSource.City == "" ? bPlaceBoxSource.CurrentCity : bPlaceBoxSource.City
, bPlaceBoxDestination.City == "" ? bPlaceBoxDestination.CurrentCity : bPlaceBoxDestination.City);
}
else //步行
{
if (bPlaceBoxSource.City != "" && bPlaceBoxDestination.City != "" && bPlaceBoxSource.City != bPlaceBoxDestination.City)
{
MessageBox.Show("步行导航时，两地城市必须一致！");
return;
}
routes = ds.DirectionByWalking(bPlaceBoxSource.QueryText, bPlaceBoxDestination.QueryText, _currentCity);
}
if (routes != null && (string)routes["status"] == "0") //搜索成功
{
this.Invoke((Action) delegate()
{
_wait.Visible = false;
if ((string)routes["type"] == "2") //正常结果
{
//生成起点终点
BPoint start = new BPoint {
Type = PointType.RouteStart, Selected = false, Address = bPlaceBoxSource.QueryText, Location = new LatLngPoint(double.Parse((string)routes["result"]["origin"]["originPt"]["lng"]), double.Parse((string)routes["result"]["origin"]["originPt"]["lat"]))
};
BPoint end = new BPoint {
Type = PointType.RouteEnd, Selected = false, Address = bPlaceBoxDestination.QueryText, Location = new LatLngPoint(double.Parse((string)routes["result"]["destination"]["destinationPt"]["lng"]), double.Parse((string)routes["result"]["destination"]["destinationPt"]["lat"]))
};
if (BMapControl != null)
{
BMapControl.SetRouteStartAndEnd(start, end); //设置地图中对应的起点 终点
}
if (_current_method == 0) //公交
{
BTaxiTipControl taxi = new BTaxiTipControl();
taxi.DataSource = routes["result"]["taxi"]; //打车信息
taxi.Width = flpRoutes.Width - 25;
flpRoutes.Controls.Add(taxi);
foreach (JObject route in routes["result"]["routes"])
{
BTransitRouteItem item = new BTransitRouteItem();
BStepStartAndEndItem origin = new BStepStartAndEndItem();
origin.EndPoint = start;
item.Origin = origin; //起点
BStepStartAndEndItem destination = new BStepStartAndEndItem();
destination.EndPoint = end;
item.Destination = destination; //终点
item.DataSource = new BRoute {
Type = RouteType.Transit, DataSource = route
};
flpRoutes.Controls.Add(item);
item.Width = flpRoutes.Width - 25;
item.StepEndPointSelected += new StepEndPointSelectedEventHandler(item_StepEndPointSelected);
item.StepSelected += new StepSelectedEventHandler(item_StepSelected);
item.RouteSelected += new RouteSelectedEventHandler(item_RouteSelected);
}
}
else if (_current_method == 1) //驾车
{
BTaxiTipControl taxi = new BTaxiTipControl();
taxi.DataSource = routes["result"]["taxi"]; //打车信息
taxi.Width = flpRoutes.Width - 25;
flpRoutes.Controls.Add(taxi);
foreach (JObject route in routes["result"]["routes"])
{
BDrivingRouteItem item = new BDrivingRouteItem();
BStepStartAndEndItem origin = new BStepStartAndEndItem();
origin.EndPoint = start;
item.Origin = origin; //起点
BStepStartAndEndItem destination = new BStepStartAndEndItem();
destination.EndPoint = end;
item.Destination = destination; //终点
item.DataSource = new BRoute {
DataSource = route, Type = RouteType.Driving
};
flpRoutes.Controls.Add(item);
item.Width = flpRoutes.Width - 25;
item.StepEndPointSelected += new StepEndPointSelectedEventHandler(item_StepEndPointSelected);
item.StepSelected += new StepSelectedEventHandler(item_StepSelected);
item.RouteSelected += new RouteSelectedEventHandler(item_RouteSelected);
}
}
else //步行
{
//步行没有打车信息
foreach (JObject route in routes["result"]["routes"])
{
BWalkingRouteItem item = new BWalkingRouteItem();
BStepStartAndEndItem origin = new BStepStartAndEndItem();
origin.EndPoint = start;
item.Origin = origin; //起点
BStepStartAndEndItem destination = new BStepStartAndEndItem();
destination.EndPoint = end;
item.Destination = destination; //终点
item.DataSource = new BRoute {
DataSource = route, Type = RouteType.Walking
};
flpRoutes.Controls.Add(item);
item.Width = flpRoutes.Width - 25;
item.StepEndPointSelected += new StepEndPointSelectedEventHandler(item_StepEndPointSelected);
item.StepSelected += new StepSelectedEventHandler(item_StepSelected);
item.RouteSelected += new RouteSelectedEventHandler(item_RouteSelected);
}
}
}
else //地址模糊 需重新选择 具体json格式参见api文档
{
//
string start_keyword = (string)routes["result"]["originInfo"]["wd"];
string end_keyword = (string)routes["result"]["destinationInfo"]["wd"];
Label l = new Label();
l.AutoSize = false;
l.ForeColor = Color.Red;
l.Width = flpRoutes.Width - 25; l.Height = 20;
l.TextAlign = ContentAlignment.MiddleCenter;
l.Text = "请选择准确的位置";
flpRoutes.Controls.Add(l);
if (routes["result"]["origin"] != null) //起点模糊
{
if (routes["result"]["origin"] is JArray) //公交
{
BPlacesSuggestionControl sugg_start = new BPlacesSuggestionControl();
sugg_start.Type = PointType.RouteStart;
sugg_start.KeyWord = start_keyword;
sugg_start.Content = routes["result"]["origin"];
sugg_start.Width = flpRoutes.Width - 25;
sugg_start.EndPointSelected += new EndPointSelectedEventHandler(sugg_start_EndPointSelected);
flpRoutes.Controls.Add(sugg_start);
}
else //驾车 步行
{
BPlacesSuggestionControl sugg_start = new BPlacesSuggestionControl();
sugg_start.Type = PointType.RouteStart;
sugg_start.KeyWord = start_keyword;
sugg_start.Content = routes["result"]["origin"]["content"];
sugg_start.Width = flpRoutes.Width - 25;
sugg_start.EndPointSelected += new EndPointSelectedEventHandler(sugg_start_EndPointSelected);
flpRoutes.Controls.Add(sugg_start);
}
}
if (routes["result"]["destination"] != null) //终点模糊
{
if (routes["result"]["destination"] is JArray) //公交
{
BPlacesSuggestionControl sugg_end = new BPlacesSuggestionControl();
sugg_end.Type = PointType.RouteEnd;
sugg_end.KeyWord = end_keyword;
sugg_end.Content = routes["result"]["destination"];
sugg_end.Width = flpRoutes.Width - 25;
sugg_end.EndPointSelected += new EndPointSelectedEventHandler(sugg_end_EndPointSelected);
flpRoutes.Controls.Add(sugg_end);
}
else
{
BPlacesSuggestionControl sugg_end = new BPlacesSuggestionControl();
sugg_end.Type = PointType.RouteEnd;
sugg_end.KeyWord = end_keyword;
sugg_end.Content = routes["result"]["destination"]["content"];
sugg_end.Width = flpRoutes.Width - 25;
sugg_end.EndPointSelected += new EndPointSelectedEventHandler(sugg_end_EndPointSelected);
flpRoutes.Controls.Add(sugg_end);
}
}
}
});
}
}).BeginInvoke(null, null);
}
