public void Draw(BMapControl c, Graphics g)
{
if (DrawMode != EditMode.None)
{
Point lastPoint = Point.Empty;
if (LstMarkPoint.Count > 0)
{
lastPoint = c.LatLngToPoint(LstMarkPoint.Last());
}
string editModeMsg = string.Empty;
switch (DrawMode)
{
case EditMode.None:
break;
case EditMode.DrawLine:
if (LstMarkPoint.Count == 1)
{
var p1 = c.LatLngToPoint(LstMarkPoint[0]);
DrawDashLine(g, p1, _curMousePoint);
}
else if (LstMarkPoint.Count == 2)
{
var p1 = c.LatLngToPoint(LstMarkPoint[0]);
var p2 = c.LatLngToPoint(LstMarkPoint[1]);
g.DrawLine(DrawPen, p1, p2);
_drawCompleteToolTip.ShowPoint = p2;
}
editModeMsg = "画线模式（测距，测正北角）";
break;
case EditMode.DrawLines:
if (LstMarkPoint.Count > 0)
{
var lst = new List <Point>();
//double dist = 0;
//var tempLatLng = new PointLatLng();
foreach (var item in LstMarkPoint)
{
lst.Add(c.LatLngToPoint(item));
}
if (lst.Count > 1)
{
g.DrawLines(DrawPen, lst.ToArray());
}
}
if (IsCompleted)
{
_drawCompleteToolTip.ShowPoint = lastPoint;
}
editModeMsg = "画折线模式（测距）";
break;
case EditMode.DrawRect:
if (LstMarkPoint.Count == 1)
{
var p1 = c.LatLngToPoint(LstMarkPoint[0]);
DrawDashLine(g, p1, _curMousePoint);
DrawPen.DashStyle = DashStyle.Solid;
}
else if (LstMarkPoint.Count == 2)
{
var p1 = c.LatLngToPoint(LstMarkPoint[0]);
var p2 = c.LatLngToPoint(LstMarkPoint[1]);
var rect = DrawHelper.GetRect(p1, p2);
g.FillRectangle(FillBrush, rect);
g.DrawRectangle(DrawPen, rect);
//_drawCompleteToolTip.ShowPoint = p2;
}
editModeMsg = "画矩形模式";
break;
case EditMode.DrawPolyon:
if (LstMarkPoint.Count > 1)
{
List <Point> lstp = new List <Point>();
foreach (var item in LstMarkPoint)
{
lstp.Add(c.LatLngToPoint(item));
}
PolyonPath = new GraphicsPath();
var ps = lstp.ToArray();
if (!IsCompleted)
{
g.DrawLines(DrawPen, ps);
//DrawDashLine(g, lastPoint, _curMousePoint);
}
else
{
if (ps.Length > 2)
{
g.DrawPolygon(DrawPen, ps);
}
}
if (ps.Length > 2)
{
PolyonPath.AddPolygon(ps);
PolyonPath.CloseFigure();
g.FillPolygon(FillBrush, ps);
}
}
editModeMsg = "画多边形模式";
break;
case EditMode.DrawCircle:
if (LstMarkPoint.Count == 1)
{
var p1 = c.LatLngToPoint(LstMarkPoint[0]);
var rect = DrawHelper.GetEllipseRect(p1, _curMousePoint);
DrawPen.DashStyle = DashStyle.DashDot;
DrawPen.DashPattern = new float[] { 5, 2 };
g.FillEllipse(FillBrush, rect);
g.DrawEllipse(DrawPen, rect);
DrawPen.DashStyle = DashStyle.Solid;
}
else if (LstMarkPoint.Count == 2)
{
var p1 = c.LatLngToPoint(LstMarkPoint[0]);
var p2 = c.LatLngToPoint(LstMarkPoint[1]);
var rect = DrawHelper.GetEllipseRect(p1, p2);
g.FillEllipse(FillBrush, rect);
g.DrawEllipse(DrawPen, rect);
//g.FillEllipse(DrawPen.Brush, new Rectangle(p1.GetOffSet(-5, -5), new Size(10, 10)));//画圆心
DrawDashLine(g, p1, p2);
_drawCompleteToolTip.ShowPoint = p2;
}
editModeMsg = "画圆模式";
break;
case EditMode.DrawPie:
switch (LstMarkPoint.Count)
{
case 1:
{
var p1 = c.LatLngToPoint(LstMarkPoint[0]);
var curLatLng = c.MouseLatLng;
DrawPen.DashStyle = DashStyle.DashDot;
DrawPen.DashPattern = new float[] { 5, 2 };
DrawPie(g, p1, _curMousePoint);
DrawDashLine(g, p1, _curMousePoint);
_curMouseToolTip.Info = string.Format("距离：{0:0.00}米\r\n正北角：{1:0.00}°", MercatorHelper.GetDistance(LstMarkPoint[0], curLatLng), MercatorHelper.GetBearing(LstMarkPoint[0], curLatLng));
}
break;
case 2:
{
var p1 = c.LatLngToPoint(LstMarkPoint[0]);
var p2 = c.LatLngToPoint(LstMarkPoint[1]);
var angle = DrawHelper.GetAngle(p1, p2, _curMousePoint);
float angleWidth = 2 * (float)angle;
DrawPen.DashStyle = DashStyle.DashDot;
DrawPen.DashPattern = new float[] { 5, 2 };
DrawPie(g, p1, p2, angleWidth);
DrawDashLine(g, p1, p2);
//DrawDashLine(g, p1, _curMousePoint);
_curMouseToolTip.Info = string.Format("角度：{0:0.00}°", angleWidth);
}
break;
case 3:
{
var p1 = c.LatLngToPoint(LstMarkPoint[0]);
var p2 = c.LatLngToPoint(LstMarkPoint[1]);
var p3 = c.LatLngToPoint(LstMarkPoint[2]);
var angle = DrawHelper.GetAngle(p1, p2, p3);
float angleWidth = 2 * (float)angle;
DrawPen.DashStyle = DashStyle.Solid;
DrawPie(g, p1, p2, angleWidth);
//g.DrawPie(DrawPen,)
_drawCompleteToolTip.ShowPoint = p1;
}
break;
default:
break;
}
editModeMsg = "画扇形模式";
break;
default:
break;
}
//画坐标点信息
_curMouseToolTip.Draw(c, g);
if (IsCompleted)
{
//_drawCompleteToolTip.ShowPoint = lastPoint;
_drawCompleteToolTip.Draw(c, g);//画完成信息
}
else if (!lastPoint.IsEmpty)
{
switch (DrawMode)
{
case EditMode.None:
break;
case EditMode.DrawLine:
case EditMode.DrawLines:
case EditMode.DrawPolyon:
case EditMode.DrawCircle:
//case EditMode.DrawPie:
//画虚线
DrawDashLine(g, lastPoint, _curMousePoint);
break;
default:
break;
}
}
var pMode = new Point(c.Width / 2 - 50, 10);
g.DrawString(editModeMsg, new Font("微软雅黑", 12, FontStyle.Bold), Brushes.White, pMode);//画模式
}
}
public void OnMouseClick(BMapControl c, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
if (IsCompleted)
{
ReSet(c);
}
switch (DrawMode)
{
case EditMode.DrawLine:
if (LstMarkPoint.Count < 2)
{
LstMarkPoint.Add(c.PointToLatLng(e.Location));
}
else
{
LstMarkPoint.Add(c.PointToLatLng(e.Location));
}
if (LstMarkPoint.Count == 2)
{
IsCompleted = true;
var p1 = LstMarkPoint[0];
var p2 = LstMarkPoint[1];
//c.Invalidate(DrawHelper.GetLineRegion(c.LatLngToPoint(p1), c.LatLngToPoint(p2)));
_drawCompleteToolTip.Info = string.Format("距离：{0:0.00} 米\r\n正北角：{1:0.0} °"
, MercatorHelper.GetDistance(p1, p2), MercatorHelper.GetBearing(p1, p2));
}
break;
case EditMode.DrawLines:
PointLatLng lastP = null;
if (LstMarkPoint.Count > 0)
{
lastP = LstMarkPoint.Last();
}
var curP = c.PointToLatLng(e.Location);
LstMarkPoint.Add(curP);
//计算距离
if (lastP != null)
{
_linesDist += MercatorHelper.GetDistance(lastP, curP);
}
_drawCompleteToolTip.Info = string.Format("总距离：{0:0.00} 米", _linesDist);
break;
case EditMode.DrawRect:
if (LstMarkPoint.Count < 2)
{
LstMarkPoint.Add(c.PointToLatLng(e.Location));
}
if (LstMarkPoint.Count == 2)
{
IsCompleted = true;
//var p1 = LstMarkPoint[0];
//var p2 = LstMarkPoint[1];
////c.Invalidate(DrawHelper.GetLineRegion(c.LatLngToPoint(p1), c.LatLngToPoint(p2)));
//_drawCompleteToolTip.Info = string.Format("面积：{0:0.00} m²\r\n正北角：{1:0.0} °"
// , MercatorHelper.GetDistance(p1, p2)* MercatorHelper.GetBearing(p1, p2));
}
break;
case EditMode.DrawPolyon:
LstMarkPoint.Add(c.PointToLatLng(e.Location));
break;
case EditMode.DrawCircle:
LstMarkPoint.Add(c.PointToLatLng(e.Location));
if (LstMarkPoint.Count == 2)
{
IsCompleted = true;
var p1 = LstMarkPoint[0];
var p2 = LstMarkPoint[1];
_drawCompleteToolTip.Info = string.Format("半径：{0:0.00}米", MercatorHelper.GetDistance(p1, p2));
}
break;
case EditMode.DrawPie:
LstMarkPoint.Add(c.PointToLatLng(e.Location));
if (LstMarkPoint.Count == 3)
{
IsCompleted = true;
var p1 = c.LatLngToPoint(LstMarkPoint[0]);
var p2 = c.LatLngToPoint(LstMarkPoint[1]);
var p3 = c.LatLngToPoint(LstMarkPoint[2]);
_drawCompleteToolTip.Info = string.Format("坐标：{0}\r\n半径：{1:0.00}米\r\n中线方向：{2:0.00}°\r\n角度宽：{3:0.00}°",
LstMarkPoint[0],
MercatorHelper.GetDistance(LstMarkPoint[0], LstMarkPoint[1]),
MercatorHelper.GetBearing(LstMarkPoint[0], LstMarkPoint[1]),
2 * DrawHelper.GetAngle(p1, p2, p3));
}
break;
case EditMode.None:
default:
break;
}
}
else if (e.Button == MouseButtons.Right)
{
IsCompleted = true;
}
if (DrawMode != EditMode.None)
{
c.Refresh();
}
if (IsCompleted)
{
if (DrawComplete != null)
{
DrawComplete(LstMarkPoint);
}
}
}