public Task <Stream> ReverseGeocodeStreamAsync(LatLngPoint latLng, IProgress prog = null)
{
return(Cache.GetStreamAsync(new ReverseGeocodingRequest(ApiKey)
{
Location = latLng
}, prog));
}
/// <summary>
/// 绘制方法
/// </summary>
/// <param name="g"></param>
/// <param name="center"></param>
/// <param name="zoom"></param>
/// <param name="screen_size"></param>
public override void Draw(Graphics g, LatLngPoint center, int zoom, Size screen_size)
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
using (SolidBrush sb = new SolidBrush(Color.FromArgb(100, Color.White)))
{
g.FillRectangle(sb, new Rectangle(LeftTop, new Size(Width, Height)));
}
using (Pen pen = new Pen(Color.Black))
{
g.DrawRectangle(pen, new Rectangle(LeftTop, new Size(Width, Height)));
}
using (SolidBrush sb = new SolidBrush(Color.Black))
{
//移动柄
g.FillRectangle(sb, new Rectangle(new Point(LeftTop.X - 3, LeftTop.Y - 3), new Size(6, 6)));
g.FillRectangle(sb, new Rectangle(new Point(LeftTop.X - 3 + Width / 2, LeftTop.Y - 3), new Size(6, 6)));
g.FillRectangle(sb, new Rectangle(new Point(LeftTop.X - 3 + Width, LeftTop.Y - 3), new Size(6, 6)));
g.FillRectangle(sb, new Rectangle(new Point(LeftTop.X - 3 + Width, LeftTop.Y - 3 + Height / 2), new Size(6, 6)));
g.FillRectangle(sb, new Rectangle(new Point(LeftTop.X - 3 + Width, LeftTop.Y - 3 + Height), new Size(6, 6)));
g.FillRectangle(sb, new Rectangle(new Point(LeftTop.X - 3 + Width / 2, LeftTop.Y - 3 + Height), new Size(6, 6)));
g.FillRectangle(sb, new Rectangle(new Point(LeftTop.X - 3, LeftTop.Y - 3 + Height), new Size(6, 6)));
g.FillRectangle(sb, new Rectangle(new Point(LeftTop.X - 3, LeftTop.Y - 3 + Height / 2), new Size(6, 6)));
//高宽
g.FillRectangle(sb, new Rectangle(new Point(LeftTop.X - 2, LeftTop.Y - 23), new Size(60, 18)));
using (Font f = new Font("微软雅黑", 9))
{
g.DrawString(Width + "×" + Height, f, Brushes.White, new PointF(LeftTop.X - 1, LeftTop.Y - 21));
}
}
}
/// <summary>
/// 更新最后一点
/// </summary>
/// <param name="p"></param>
public void UpdateTheEnd(LatLngPoint p)
{
if (Points != null)
{
Points[Points.Count - 1] = p;
}
}
/// <summary>
/// 更新最后一点
/// </summary>
/// <param name="p"></param>
public void UpdateTheEnd(LatLngPoint p)
{
if (Points != null)
{
Points[Points.Count - 1] = p;
}
}
private bool ParseSearchParams(string searchLocation, out string searchPano, out LatLngPoint searchPoint)
{
searchPano = null;
searchPoint = null;
if (!string.IsNullOrEmpty(searchLocation))
{
var panoMatch = GMAPS_URL_PANO_PATTERN.Match(searchLocation);
var latLngMatch = GMAPS_URL_LATLNG_PATTERN.Match(searchLocation);
if (panoMatch.Success && MetadataResponse.IsPano(panoMatch.Groups[1].Value))
{
searchPano = panoMatch.Groups[1].Value;
}
else if (MetadataResponse.IsPano(searchLocation))
{
searchPano = searchLocation;
}
if (latLngMatch.Success && LatLngPoint.TryParse(latLngMatch.Groups[1].Value, out var point))
{
searchPoint = point;
}
else if (LatLngPoint.TryParse(searchLocation, out var point2))
{
searchPoint = point2;
}
}
return(metadata == null ||
searchPano != null &&
metadata.Pano_ID != searchPano ||
searchPoint != null &&
searchPoint.Distance(metadata.Location) > 3f);
}
private static bool OutOfChina(LatLngPoint point)
{
double lng = point.LonX;
double lat = point.LatY;
return((lng < 72.004 || lng > 137.8347) || ((lat < 0.8293 || lat > 55.8271) || false));
}
/// <summary>
/// 绘制方法
/// </summary>
/// <param name="g">画布</param>
/// <param name="center">地图中心点</param>
/// <param name="zoom">地图缩放级别</param>
/// <param name="screen_size">地图大小</param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, System.Drawing.Size screen_size)
{
if (Points != null && Points.Count >= 2)
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
List <Point> l = new List <Point>();
foreach (LatLngPoint p in Points)
{
l.Add(MapHelper.GetScreenLocationByLatLng(p, center, zoom, screen_size));
}
using (Pen pen = new Pen(Color.FromArgb(150, Color.Blue), 4))
{
if (Points.Count == 2)
{
g.DrawLine(pen, l[0], l[1]);
}
else
{
using (SolidBrush sb = new SolidBrush(Color.FromArgb(30, Color.Blue)))
{
g.FillPolygon(sb, l.ToArray());
}
g.DrawPolygon(pen, l.ToArray());
}
}
}
}
public Bitmap ConvertToSquare(Bitmap img, Point leftTop, Point rightTop, Point leftBottom, Point rightBottom)
{
int WEIGHT = PIC_SIZE - 1;
loadBitMap(img);
destBitmap = new Bitmap(PIC_SIZE, PIC_SIZE);
double topSlopeX = ((double)(rightTop.X - leftTop.X)) / WEIGHT;
double bottomSlopeX = ((double)(rightBottom.X - leftBottom.X)) / WEIGHT;
double topSlopeY = ((double)(leftTop.Y - rightTop.Y)) / WEIGHT;
double bottomSlopeY = ((double)(leftBottom.Y - rightBottom.Y)) / WEIGHT;
LatLngPoint top, bottom;
for (int i = 0; i < PIC_SIZE; i++)
{
top = new LatLngPoint(i * topSlopeX + leftTop.X, leftTop.Y - i * topSlopeY);
bottom = new LatLngPoint(i * bottomSlopeX + leftBottom.X, leftBottom.Y - i * bottomSlopeY);
for (int j = 0; j < PIC_SIZE; j++)
{
SetPixel(i, j, FourSquareAvg(img, new LatLngPoint((top.Lng * (WEIGHT - j) + bottom.Lng * j) / WEIGHT, (top.Lat * (WEIGHT - j) + bottom.Lat * j) / WEIGHT)));
}
}
destBitmap = packetBitMap();
return(destBitmap);
}
public int FourSquareAvg(Bitmap img, LatLngPoint exactlyPoint)
{
int minX = Convert.ToInt32(Math.Floor(exactlyPoint.Lng));
int minY = Convert.ToInt32(Math.Floor(exactlyPoint.Lat));
int leftTopBytes = GetPixel(minX, minY);
int rightTopBytes = GetPixel(minX + 1, minY);
int leftBottomBytes = GetPixel(minX, minY + 1);
int rightBottomBytes = GetPixel(minX + 1, minY + 1);
double deltX = exactlyPoint.Lng - minX;
double deltY = exactlyPoint.Lat - minY;
int result;
unsafe
{
byte *leftTop = (byte *)&leftTopBytes, rightTop = (byte *)&rightTopBytes, leftBottom = (byte *)&leftBottomBytes, rightBottom = (byte *)&rightBottomBytes;
byte colorR = (byte)((leftTop[2] * (1 - deltX) + deltX * rightTop[2]) * (1 - deltY) + deltY * (leftBottom[2] * (1 - deltX) + deltX * rightBottom[2]));
byte colorB = (byte)((leftTop[0] * (1 - deltX) + deltX * rightTop[0]) * (1 - deltY) + deltY * (leftBottom[0] * (1 - deltX) + deltX * rightBottom[0]));
byte colorG = (byte)((leftTop[1] * (1 - deltX) + deltX * rightTop[1]) * (1 - deltY) + deltY * (leftBottom[1] * (1 - deltX) + deltX * rightBottom[1]));
byte colorA = (byte)((leftTop[3] * (1 - deltX) + deltX * rightTop[3]) * (1 - deltY) + deltY * (leftBottom[3] * (1 - deltX) + deltX * rightBottom[3]));
result = ((colorA << 24) | (colorR << 16) | (colorG << 8) | colorB);
}
if (result == 0)
{
result = 16777215;
}
return(result);
}
//百度坐标转墨卡托
private static PointF LatLng2Mercator(LatLngPoint p)
{
double[] arr = null;
double n_lat = p.Lat > 74 ? 74 : p.Lat;
n_lat = n_lat < -74 ? -74 : n_lat;
for (var i = 0; i < array1.Length; i++)
{
if (p.Lat >= array1[i])
{
arr = array2[i];
break;
}
}
if (arr == null)
{
for (var i = array1.Length - 1; i >= 0; i--)
{
if (p.Lat <= -array1[i])
{
arr = array2[i];
break;
}
}
}
double[] res = Convertor(p.Lng, p.Lat, arr);
return(new PointF((float)res[0], (float)res[1]));
}
/// <summary>
/// Calculate the position of the Sun at the given time as an azimuth and altitude bearing
/// from the given location on spaceship Earth. /// SEE: https://en.wikipedia.org/wiki/Position_of_the_Sun
/// </summary>
/// <param name="location">The position of the viewer on earth</param>
/// <param name="time">The time of day</param>
/// <returns>The position of the sun in the sky</returns>
public static HorizontalSphericalPosition ToSunPosition(this LatLngPoint location, DateTime time)
{
var n = time.ToJulianDays();
var ec = n.ToGeocentricEclipticSphericalFromJulianDay();
var eq = ec.ToEquitorial(n);
return(eq.ToHorizontal(location, n));
}
public Task <Stream> GetMetadataStreamAsync(LatLngPoint latLng, int searchRadius = 50, IProgress prog = null)
{
return(Cache.GetStreamAsync(new MetadataRequest(ApiKey, SigningKey)
{
Location = latLng,
Radius = searchRadius
}, prog));
}
/// <summary>
/// 绘制方法
/// </summary>
/// <param name="g">画布</param>
/// <param name="center">中心</param>
/// <param name="zoom">地图缩放级别</param>
/// <param name="screen_size">地图大小</param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, System.Drawing.Size screen_size)
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
if (_points_arounds == null)
{
_points_arounds = new List <LatLngPoint>();
}
}
private void _add1stLocation(object sender, RoutedEventArgs e, LatLngPoint lc)
{
MeasureLocation1 = lc;
if (_measureLocation2 != null)
{
MeasuredDistance = MeasureLocation1.GetDistance(MeasureLocation2);
}
}
/// <summary>
/// 绘制方法
/// </summary>
/// <param name="g"></param>
/// <param name="center"></param>
/// <param name="zoom"></param>
/// <param name="screen_size"></param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, System.Drawing.Size screen_size)
{
if (Points != null && Points.Count >= 2)
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
List <Point> l = new List <Point>();
foreach (LatLngPoint p in Points)
{
l.Add(MapHelper.GetScreenLocationByLatLng(p, center, zoom, screen_size)); //屏幕坐标
}
double total = 0; double step = 0;
using (Pen pen = new Pen(Color.FromArgb(150, Color.OrangeRed), 4))
{
for (int i = 0; i < l.Count - 1; ++i)
{
g.DrawLine(pen, l[i], l[i + 1]);
g.FillEllipse(Brushes.White, new Rectangle(new Point(l[i].X - 4, l[i].Y - 4), new Size(8, 8)));
g.DrawEllipse(Pens.OrangeRed, new Rectangle(new Point(l[i].X - 4, l[i].Y - 4), new Size(8, 8)));
if (i == 0) //起点
{
g.FillRectangle(Brushes.White, new Rectangle(l[i].X + 3, l[i].Y, 35, 20));
g.DrawRectangle(Pens.DarkGray, new Rectangle(l[i].X + 3, l[i].Y, 35, 20));
g.DrawString("起点", new Font("微软雅黑", 9), Brushes.OrangeRed, new PointF(l[i].X + 6, l[i].Y + 2));
if (i == l.Count - 2) //终点 只有两点的时候
{
step = MapHelper.GetDistanceByLatLng(Points[i], Points[i + 1]);
total += step;
g.FillRectangle(Brushes.White, new Rectangle(l[i + 1].X + 3, l[i + 1].Y, 90, 20));
g.DrawRectangle(Pens.DarkGray, new Rectangle(l[i + 1].X + 3, l[i + 1].Y, 90, 20));
g.DrawString("总长:" + Math.Round(total, 2) + "公里", new Font("微软雅黑", 9), Brushes.OrangeRed, new PointF(l[i + 1].X + 10, l[i + 1].Y + 2));
}
}
else //其它点
{
step = MapHelper.GetDistanceByLatLng(Points[i - 1], Points[i]);
total += step;
g.FillRectangle(Brushes.White, new Rectangle(l[i].X + 3, l[i].Y, 70, 20));
g.DrawRectangle(Pens.DarkGray, new Rectangle(l[i].X + 3, l[i].Y, 70, 20));
g.DrawString(Math.Round(step, 2) + "公里", new Font("微软雅黑", 9), Brushes.OrangeRed, new PointF(l[i].X + 10, l[i].Y + 2));
if (i == l.Count - 2) //终点
{
step = MapHelper.GetDistanceByLatLng(Points[i], Points[i + 1]);
total += step;
g.FillRectangle(Brushes.White, new Rectangle(l[i + 1].X + 3, l[i + 1].Y, 100, 20));
g.DrawRectangle(Pens.DarkGray, new Rectangle(l[i + 1].X + 3, l[i + 1].Y, 100, 20));
g.DrawString("总长:" + Math.Round(total, 2) + "公里", new Font("微软雅黑", 9), Brushes.OrangeRed, new PointF(l[i + 1].X + 10, l[i + 1].Y + 2));
}
}
}
}
}
}
/// <summary>
/// 绘制方法
/// </summary>
/// <param name="g"></param>
/// <param name="center"></param>
/// <param name="zoom"></param>
/// <param name="screen_size"></param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, System.Drawing.Size screen_size)
{
if (Points != null && Points.Count >= 2)
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
List<Point> l = new List<Point>();
foreach (LatLngPoint p in Points)
{
l.Add(MapHelper.GetScreenLocationByLatLng(p, center, zoom, screen_size)); //屏幕坐标
}
double total = 0; double step = 0;
using (Pen pen = new Pen(Color.FromArgb(150, Color.OrangeRed), 4))
{
for (int i = 0; i < l.Count - 1; ++i)
{
g.DrawLine(pen, l[i], l[i + 1]);
g.FillEllipse(Brushes.White, new Rectangle(new Point(l[i].X - 4, l[i].Y - 4), new Size(8, 8)));
g.DrawEllipse(Pens.OrangeRed, new Rectangle(new Point(l[i].X - 4, l[i].Y - 4), new Size(8, 8)));
if (i == 0) //起点
{
g.FillRectangle(Brushes.White, new Rectangle(l[i].X + 3, l[i].Y, 35, 20));
g.DrawRectangle(Pens.DarkGray, new Rectangle(l[i].X + 3, l[i].Y, 35, 20));
g.DrawString("起点", new Font("微软雅黑", 9), Brushes.OrangeRed, new PointF(l[i].X + 6, l[i].Y + 2));
if (i == l.Count - 2) //终点 只有两点的时候
{
step = MapHelper.GetDistanceByLatLng(Points[i], Points[i + 1]);
total += step;
g.FillRectangle(Brushes.White, new Rectangle(l[i + 1].X + 3, l[i + 1].Y, 90, 20));
g.DrawRectangle(Pens.DarkGray, new Rectangle(l[i + 1].X + 3, l[i + 1].Y, 90, 20));
g.DrawString("总长:" + Math.Round(total,2) + "公里", new Font("微软雅黑", 9), Brushes.OrangeRed, new PointF(l[i + 1].X + 10, l[i + 1].Y + 2));
}
}
else //其它点
{
step = MapHelper.GetDistanceByLatLng(Points[i-1], Points[i]);
total += step;
g.FillRectangle(Brushes.White, new Rectangle(l[i].X + 3, l[i].Y, 70, 20));
g.DrawRectangle(Pens.DarkGray, new Rectangle(l[i].X + 3, l[i].Y, 70, 20));
g.DrawString(Math.Round(step,2) + "公里", new Font("微软雅黑", 9), Brushes.OrangeRed, new PointF(l[i].X + 10, l[i].Y + 2));
if (i == l.Count - 2) //终点
{
step = MapHelper.GetDistanceByLatLng(Points[i], Points[i + 1]);
total += step;
g.FillRectangle(Brushes.White, new Rectangle(l[i + 1].X + 3, l[i + 1].Y, 100, 20));
g.DrawRectangle(Pens.DarkGray, new Rectangle(l[i + 1].X + 3, l[i + 1].Y, 100, 20));
g.DrawString("总长:" + Math.Round(total, 2) + "公里", new Font("微软雅黑", 9), Brushes.OrangeRed, new PointF(l[i + 1].X + 10, l[i + 1].Y + 2));
}
}
}
}
}
}
private async Task SearchData(string searchPano, LatLngPoint searchPoint, IProgress prog)
{
prog.Report(0);
metadata = await gmaps.SearchMetadataAsync(searchLocation, searchPano, searchPoint, searchRadius, prog)
.ConfigureAwait(false);
if (metadata != null)
{
searchPoint = metadata.Location;
searchLocation = searchPano = metadata.Pano_ID;
if (lastSphere == null)
{
origin = metadata.Location;
}
if (gps != null)
{
gps.FakeCoord = true;
gps.Coord = metadata.Location;
}
#if UNITY_EDITOR
if (locationInput != null)
{
locationInput.value = searchLocation;
}
#endif
loadingBar.Activate();
var curSphere = await GetPhotosphere();
if (lastSphere != null)
{
await JuniperSystem.OnMainThreadAsync(lastSphere.Deactivate);
}
await JuniperSystem.OnMainThreadAsync(curSphere.Activate);
if (lastSphere == null)
{
await prog.WaitOnAsync(curSphere, "Loading photosphere");
Complete();
}
await JuniperSystem.OnMainThreadAsync(() =>
{
avatar.transform.position = GetRelativeVector3(metadata);
curSphere.transform.position = avatar.Head.position;
});
prog.Report(1);
lastSphere = curSphere;
}
}
public void Add(LatLngPoint item)
{
if (item is null)
{
throw new ArgumentNullException(nameof(item));
}
Points.Add(item.ToString(CultureInfo.InvariantCulture));
}
/// <summary>
/// 计算瓦片地图的行列号范围
/// </summary>
/// <param name="startcoord">左下角经纬度</param>
/// <param name="endcoord">右上角经纬度</param>
/// <param name="z">地图层级</param>
/// <returns></returns>
public Tuple <int, int, int, int> GetTileBound(LatLngPoint startcoord, LatLngPoint endcoord, int z)
{
PointF StartMCPoint = CoordTransferHelper.LatLng2Mercator(startcoord);
Point StartTilePoint = GetTileCoord(StartMCPoint, z);
PointF EndPoint = CoordTransferHelper.LatLng2Mercator(endcoord);
Point EndTilePoint = GetTileCoord(EndPoint, z);
return(new Tuple <int, int, int, int>(StartTilePoint.X, StartTilePoint.Y, EndTilePoint.X, EndTilePoint.Y));
}
/// <summary>
/// 绘制方法
/// </summary>
/// <param name="g">画布</param>
/// <param name="center">中心</param>
/// <param name="zoom">地图缩放级别</param>
/// <param name="screen_size">地图大小</param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, System.Drawing.Size screen_size)
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
if (_points_arounds == null)
{
_points_arounds = new List<LatLngPoint>();
}
}
public bool Remove(LatLngPoint item)
{
if (item is null)
{
throw new ArgumentNullException(nameof(item));
}
return(Remove(item.ToString(CultureInfo.InvariantCulture)));
}
/// <summary>
/// Calculate a rough distance, in meters, between two LatLngPoints.
/// </summary>
/// <param name="p">The second point to which to measure</param>
/// <returns>The distance between the two points, after conversion to UTM</returns>
public static float Distance(this LatLngPoint A, LatLngPoint B)
{
var a = A.ToUTM();
var b = B.ToUTM();
var dx = b.X - a.X;
var dy = b.Y - a.Y;
return((float)Sqrt((dx * dx) + (dy * dy)));
}
protected GeometryViewport(SerializationInfo info, StreamingContext context)
{
if (info is null)
{
throw new ArgumentNullException(nameof(info));
}
SouthWest = info.GetValue <LatLngPoint>(SOUTHWEST_FIELD);
NorthEast = info.GetValue <LatLngPoint>(NORTHEAST_FIELD);
}
/// <summary>
/// 将BD-09坐标转换成GCJ-02坐标
/// </summary>
/// <param name="bdPoint">BD-09坐标</param>
/// <returns>GCJ-02坐标</returns>
public LatLngPoint BD09ToGCJ02(LatLngPoint bdPoint)
{
LatLngPoint _gcjPoint = new LatLngPoint();
double _x = bdPoint.LonX - 0.0065, _y = bdPoint.LatY - 0.006;
double _z = Math.Sqrt(_x * _x + _y * _y) - 0.00002 * Math.Sin(_y * pi);
double _theta = Math.Atan2(_y, _x) - 0.000003 * Math.Cos(_x * pi);
_gcjPoint.LonX = _z * Math.Cos(_theta);
_gcjPoint.LatY = _z * Math.Sin(_theta);
return(_gcjPoint);
}
/// <summary>
/// 将墨卡托坐标转换成地球坐标(WGS-84)
/// </summary>
/// <param name="mercator">墨卡托坐标</param>
/// <returns>球坐标(WGS-84)</returns>
public static LatLngPoint MercatorToWGS84(LatLngPoint mercator)
{
LatLngPoint _wgsPoint = new LatLngPoint();
double _lonX = mercator.LonX / 20037508.34 * 180;
double _latY = mercator.LatY / 20037508.34 * 180;
_latY = 180 / Math.PI * (2 * Math.Atan(Math.Exp(_latY * Math.PI / 180)) - Math.PI / 2);
_wgsPoint.LonX = _lonX;
_wgsPoint.LatY = _latY;
return(_wgsPoint);
}
/// <summary>
/// 将地球坐标(WGS-84)转换成墨卡托坐标
/// </summary>
/// <param name="wgsPoint">地球坐标(WGS-84)</param>
/// <returns>墨卡托坐标</returns>
public static LatLngPoint WGS84ToMercator(LatLngPoint wgsPoint)
{
LatLngPoint _mercatorPoint = new LatLngPoint();
double _lonX = wgsPoint.LonX * 20037508.34 / 180;
double _latY = Math.Log(Math.Tan((90 + wgsPoint.LatY) * Math.PI / 360)) / (Math.PI / 180);
_latY = _latY * 20037508.34 / 180;
_mercatorPoint.LonX = _lonX;
_mercatorPoint.LatY = _latY;
return(_mercatorPoint);
}
/// <summary>
/// 火星坐标转 (GCJ-02)地球坐标(WGS-84)
/// </summary>
/// <param name="gcjPoint">火星坐标转 (GCJ-02)</param>
/// <returns>地球坐标(WGS-84)</returns>
public static LatLngPoint GCJ02ToWGS84(LatLngPoint gcjPoint)
{
if (GeoHelper.OutOfChina(gcjPoint))
{
return(gcjPoint);
}
LatLngPoint _transPoint = Transform(gcjPoint);
return(new LatLngPoint(gcjPoint.LatY - _transPoint.LatY, gcjPoint.LonX - _transPoint.LonX));
}
/// <summary>
/// 将BD-09坐标转换成GCJ-02坐标
/// </summary>
/// <param name="bdPoint">BD-09坐标</param>
/// <returns>GCJ-02坐标</returns>
public LatLngPoint Bd09ToGcj02(LatLngPoint bdPoint)
{
var latLngPoint = new LatLngPoint();
double x = bdPoint.LonX - 0.0065, y = bdPoint.LatY - 0.006;
var z = Math.Sqrt(x * x + y * y) - 0.00002 * Math.Sin(y * Pi);
var theta = Math.Atan2(y, x) - 0.000003 * Math.Cos(x * Pi);
latLngPoint.LonX = z * Math.Cos(theta);
latLngPoint.LatY = z * Math.Sin(theta);
return(latLngPoint);
}
/// <summary>
/// 将GCJ-02坐标转换成BD-09坐标
/// </summary>
/// <param name="gcjPoint">GCJ-02坐标</param>
/// <returns>BD-09坐标</returns>
public LatLngPoint Gcj02ToBd09(LatLngPoint gcjPoint)
{
var latLng = new LatLngPoint();
double x = gcjPoint.LonX, y = gcjPoint.LatY;
var z = Math.Sqrt(x * x + y * y) + 0.00002 * Math.Sin(y * Pi);
var theta = Math.Atan2(y, x) + 0.000003 * Math.Cos(x * Pi);
latLng.LonX = z * Math.Cos(theta) + 0.0065;
latLng.LatY = z * Math.Cos(theta) + 0.006;
return(latLng);
}
/// <summary>
/// 地球坐标(WGS-84)转火星坐标 (GCJ-02)
/// </summary>
/// <param name="wgsPoint">地球坐标(WGS-84)</param>
/// <returns>火星坐标 (GCJ-02)</returns>
public static LatLngPoint WGS84ToGCJ02(LatLngPoint wgsPoint)
{
if (GeoHelper.OutOfChina(wgsPoint))
{
return(wgsPoint);
}
LatLngPoint _transPoint = Transform(wgsPoint);
return(new LatLngPoint(wgsPoint.LatY + _transPoint.LatY, wgsPoint.LonX + _transPoint.LonX));
}
/// <summary>
/// 将BD-09坐标转换成GCJ-02坐标
/// </summary>
/// <param name="bdPoint">BD-09坐标</param>
/// <returns>GCJ-02坐标</returns>
public LatLngPoint BD09ToGCJ02(LatLngPoint bdPoint)
{
LatLngPoint latLngPoint = new LatLngPoint();
double x = bdPoint.LonX - 0.0065, _y = bdPoint.LatY - 0.006;
double z = Math.Sqrt(x * x + _y * _y) - 0.00002 * Math.Sin(_y * pi);
double theta = Math.Atan2(_y, x) - 0.000003 * Math.Cos(x * pi);
latLngPoint.LonX = z * Math.Cos(theta);
latLngPoint.LatY = z * Math.Sin(theta);
return(latLngPoint);
}
/// <summary>
/// 将GCJ-02坐标转换成BD-09坐标
/// </summary>
/// <param name="gcjPoint">GCJ-02坐标</param>
/// <returns>BD-09坐标</returns>
public LatLngPoint GCJ02ToBD09(LatLngPoint gcjPoint)
{
LatLngPoint _bdPoint = new LatLngPoint();
double _x = gcjPoint.LonX, y = gcjPoint.LatY;
double _z = Math.Sqrt(_x * _x + y * y) + 0.00002 * Math.Sin(y * pi);
double _theta = Math.Atan2(y, _x) + 0.000003 * Math.Cos(_x * pi);
_bdPoint.LonX = _z * Math.Cos(_theta) + 0.0065;
_bdPoint.LatY = _z * Math.Cos(_theta) + 0.006;
return(_bdPoint);
}
private MapCoord QueryOffSetData(LatLngPoint point)
{
MapCoord _search = new MapCoord();
_search.Lat = (int)(point.LatY * 100);
_search.Lon = (int)(point.LonX * 100);
MapOffsetComparer rc = new MapOffsetComparer();
int _findedIndex = mapCoordArrayList.BinarySearch(0, mapCoordArrayList.Count, _search, rc);
MapCoord _findedCoord = (MapCoord)mapCoordArrayList[_findedIndex];
return(_findedCoord);
}
/// <summary>
/// 绘制
/// </summary>
/// <param name="g"></param>
/// <param name="center"></param>
/// <param name="zoom"></param>
/// <param name="screen_size"></param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, System.Drawing.Size screen_size)
{
Point p = MapHelper.GetScreenLocationByLatLng(Location, center, zoom, screen_size); //屏幕坐标
Bitmap b = null;
if (Type == PointType.RouteEnd)
{
b = Properties.BMap.ico_route_end;
}
else if (Type == PointType.RouteStart)
{
b = Properties.BMap.ico_route_start;
}
else if(Type == PointType.Strange)
{
b = Properties.BMap.ico_strange_point;
}
_rect = new Rectangle(p.X - b.Width / 2, p.Y - b.Height, b.Width, b.Height);
g.DrawImage(b, _rect);
}
/// <summary>
/// 绘制方法
/// </summary>
/// <param name="g">画布</param>
/// <param name="center">地图中心</param>
/// <param name="zoom">地图缩放级别</param>
/// <param name="screen_size">地图大小</param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, System.Drawing.Size screen_size)
{
if (Points != null && Points.Count >= 2)
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
List<Point> l = new List<Point>();
foreach (LatLngPoint p in Points)
{
l.Add(MapHelper.GetScreenLocationByLatLng(p, center, zoom, screen_size)); //屏幕坐标
}
using (Pen pen = new Pen(Color.FromArgb(150,Color.Blue), 4))
{
for (int i = 0; i < l.Count - 1; ++i)
{
g.DrawLine(pen, l[i], l[i + 1]);
}
}
}
}
/// <summary>
/// 绘制方法
/// </summary>
/// <param name="g">画布</param>
/// <param name="center">地图中心</param>
/// <param name="zoom">地图缩放级别</param>
/// <param name="screen_size">地图大小</param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, System.Drawing.Size screen_size)
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
Point theScreenCenter = MapHelper.GetScreenLocationByLatLng(Center, center, zoom, screen_size); //椭圆中心点的屏幕坐标
Point theScreenRightBottom = MapHelper.GetScreenLocationByLatLng(RightBottom, center, zoom, screen_size); //椭圆矩形任意一角的屏幕坐标
int width = Math.Abs(2 * (theScreenRightBottom.X - theScreenCenter.X));
int height = Math.Abs(2 * (theScreenRightBottom.Y - theScreenCenter.Y));
if (new Rectangle(new Point(0,0), screen_size).IntersectsWith(new Rectangle(theScreenCenter.X - width/2, theScreenCenter.Y - height/2, width, height))) //需要绘制
{
using (SolidBrush sb = new SolidBrush(Color.FromArgb(30, Color.Blue)))
{
g.FillEllipse(sb, new Rectangle(theScreenCenter.X - width / 2, theScreenCenter.Y - height / 2, width, height));
}
using (Pen pen = new Pen(Color.FromArgb(150,Color.Blue), 4))
{
g.DrawEllipse(pen, new Rectangle(theScreenCenter.X - width / 2, theScreenCenter.Y - height / 2, width, height));
}
}
}
/// <summary>
/// 绘制方法
/// </summary>
/// <param name="g"></param>
/// <param name="center"></param>
/// <param name="zoom"></param>
/// <param name="screen_size"></param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, System.Drawing.Size screen_size)
{
Point p = MapHelper.GetScreenLocationByLatLng(Location, center, zoom, screen_size); //屏幕坐标
Bitmap b;
if (_selected)
{
b = Properties.BMap.ico_blue_point_big;
}
else
{
b = Properties.BMap.ico_red_point_small;
}
g.DrawImage(b, new Rectangle(p.X - b.Width / 2, p.Y - b.Height, b.Width, b.Height));
using (Font f = new Font("微软雅黑", 10, FontStyle.Bold))
{
g.DrawString(((Char)(Index + 65)).ToString(), f, Brushes.White, new PointF(_selected ? (p.X - 5) : (p.X - 6), _selected ? (p.Y - 30) : (p.Y - 26)));
}
_rect = new Rectangle(p.X - b.Width / 2, p.Y - b.Height, b.Width, b.Height);
}
/// <summary>
/// 绘制方法
/// </summary>
/// <param name="g"></param>
/// <param name="center"></param>
/// <param name="zoom"></param>
/// <param name="screen_size"></param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, System.Drawing.Size screen_size)
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
Point theScreenLeftTop = MapHelper.GetScreenLocationByLatLng(LeftTop, center, zoom, screen_size); //矩形左上角屏幕坐标
Point theScreenRightBottom = MapHelper.GetScreenLocationByLatLng(RightBottom, center, zoom, screen_size); //矩形右下角屏幕坐标
int width = Math.Abs(theScreenRightBottom.X - theScreenLeftTop.X);
int height = Math.Abs(theScreenRightBottom.Y - theScreenLeftTop.Y);
Rectangle r = new Rectangle(Math.Min(theScreenLeftTop.X, theScreenRightBottom.X), Math.Min(theScreenLeftTop.Y, theScreenRightBottom.Y), width, height);
if (new Rectangle(new Point(0, 0), screen_size).IntersectsWith(r))
{
using (SolidBrush sb = new SolidBrush(Color.FromArgb(30, Color.Blue)))
{
g.FillRectangle(sb, r);
}
using (Pen pen = new Pen(Color.FromArgb(150,Color.Blue), 4))
{
g.DrawRectangle(pen, r);
}
}
}
/// <summary>
/// 绘制方法
/// </summary>
/// <param name="g"></param>
/// <param name="center"></param>
/// <param name="zoom"></param>
/// <param name="screen_size"></param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, System.Drawing.Size screen_size)
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
Point theScreenLeftTop = MapHelper.GetScreenLocationByLatLng(LeftTop, center, zoom, screen_size); //矩形左上角屏幕坐标
Point theScreenRightBottom = MapHelper.GetScreenLocationByLatLng(RightBottom, center, zoom, screen_size); //矩形右下角屏幕坐标
int width = Math.Abs(theScreenRightBottom.X - theScreenLeftTop.X);
int height = Math.Abs(theScreenRightBottom.Y - theScreenLeftTop.Y);
Rectangle r = new Rectangle(Math.Min(theScreenLeftTop.X, theScreenRightBottom.X), Math.Min(theScreenLeftTop.Y, theScreenRightBottom.Y), width, height);
if (new Rectangle(new Point(0, 0), screen_size).IntersectsWith(r))
{
using (SolidBrush sb = new SolidBrush(Color.FromArgb(15, Color.DarkBlue)))
{
g.FillRectangle(sb, r);
}
using (Pen pen = new Pen(Color.FromArgb(150,Color.DarkBlue), 2))
{
g.DrawRectangle(pen, r);
}
}
double d1 = MapHelper.GetDistanceByLatLng(LeftTop, new LatLngPoint(LeftTop.Lng, RightBottom.Lat));
double d2 = MapHelper.GetDistanceByLatLng(LeftTop, new LatLngPoint(RightBottom.Lng, LeftTop.Lat));
double d3 = MapHelper.GetDistanceByLatLng(new LatLngPoint(LeftTop.Lng, RightBottom.Lat), RightBottom);
double d4 = MapHelper.GetDistanceByLatLng(new LatLngPoint(RightBottom.Lng, LeftTop.Lat), RightBottom);
using (Font f = new Font("微软雅黑", 9))
{
g.FillRectangle(Brushes.DarkBlue, new Rectangle(theScreenLeftTop.X, (theScreenLeftTop.Y + theScreenRightBottom.Y) / 2 - 10, 60, 20));
g.DrawString(Math.Round(d1, 2).ToString() + "km", f, Brushes.White, new PointF(theScreenLeftTop.X + 5, (theScreenLeftTop.Y + theScreenRightBottom.Y) / 2 - 8));
g.FillRectangle(Brushes.DarkBlue, new Rectangle((theScreenLeftTop.X + theScreenRightBottom.X) / 2 - 30, theScreenLeftTop.Y, 60, 20));
g.DrawString(Math.Round(d2, 2).ToString() + "km", f, Brushes.White, new PointF((theScreenLeftTop.X + theScreenRightBottom.X) / 2 - 30 + 5, theScreenLeftTop.Y + 2));
g.FillRectangle(Brushes.DarkBlue, new Rectangle((theScreenLeftTop.X + theScreenRightBottom.X) / 2 - 30, theScreenRightBottom.Y - 20, 60, 20));
g.DrawString(Math.Round(d3, 2).ToString() + "km", f, Brushes.White, new PointF((theScreenLeftTop.X + theScreenRightBottom.X) / 2 - 30 + 5, theScreenRightBottom.Y + 4 - 20));
g.FillRectangle(Brushes.DarkBlue, new Rectangle(theScreenRightBottom.X - 60, (theScreenLeftTop.Y + theScreenRightBottom.Y) / 2 - 10, 60, 20));
g.DrawString(Math.Round(d4, 2).ToString() + "km", f, Brushes.White, new PointF(theScreenRightBottom.X - 60 + 3, (theScreenLeftTop.Y + theScreenRightBottom.Y) / 2 - 10));
}
}
/// <summary>
/// 绘制
/// </summary>
/// <param name="g"></param>
/// <param name="center"></param>
/// <param name="zoom"></param>
/// <param name="screen_size"></param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, System.Drawing.Size screen_size)
{
//不同路线绘制不一样 数据源结构也不一样
if (DataSource != null)
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality; //质量优先
LatLngPoint first, second;
Point s_first = new Point(), s_second = new Point();
if (Type == RouteType.Transit) //公交
{
using (Pen p = new Pen(Color.FromArgb(250, Color.Blue),6)) //蓝色
{
p.StartCap = System.Drawing.Drawing2D.LineCap.Round; //连接圆滑
p.EndCap = System.Drawing.Drawing2D.LineCap.Round;
p.LineJoin = System.Drawing.Drawing2D.LineJoin.Round;
JToken route = DataSource["scheme"][0];
foreach (JArray array in route["steps"])
{
if ((string)array[0]["type"] == "5") //步行
{
using (Pen p2 = new Pen(Color.FromArgb(250, Color.Gray), 6))
{
p2.StartCap = System.Drawing.Drawing2D.LineCap.Round; //连接圆滑
p2.EndCap = System.Drawing.Drawing2D.LineCap.Round;
p2.LineJoin = System.Drawing.Drawing2D.LineJoin.Round;
string[] points = ((string)array[0]["path"]).Split(';'); //每一步骤中的点
for (int i = points.Length - 1; i > 0; --i)
{
first = new LatLngPoint(double.Parse(points[i - 1].Split(',')[0]), double.Parse(points[i - 1].Split(',')[1]));
second = new LatLngPoint(double.Parse(points[i].Split(',')[0]), double.Parse(points[i].Split(',')[1]));
s_first = MapHelper.GetScreenLocationByLatLng(first, center, zoom, screen_size);
s_second = MapHelper.GetScreenLocationByLatLng(second, center, zoom, screen_size);
if (new Rectangle(new Point(0, 0), screen_size).Contains(s_first) || new Rectangle(new Point(0, 0), screen_size).Contains(s_second)) //在屏幕范围内
g.DrawLine(p2, s_first, s_second);
}
}
}
else //公交 地铁
{
string transits = "";
double duration = 0;
int type = 0; //公交 还是 地铁
string start_name = "";
duration = double.Parse((string)array[0]["duration"]);
type = int.Parse((string)array[0]["vehicle"]["type"]);
start_name = (string)array[0]["vehicle"]["start_name"];
foreach (JObject jo in array) //多种方案
{
transits += ((string)jo["vehicle"]["name"] + "/");
}
transits = transits.TrimEnd(new char[] { '/'});
//只绘制一个方案即可
string[] points = ((string)array[0]["path"]).Split(';'); //每一步骤中的点
for (int i = points.Length - 1; i > 0; --i)
{
first = new LatLngPoint(double.Parse(points[i - 1].Split(',')[0]), double.Parse(points[i - 1].Split(',')[1]));
second = new LatLngPoint(double.Parse(points[i].Split(',')[0]), double.Parse(points[i].Split(',')[1]));
s_first = MapHelper.GetScreenLocationByLatLng(first, center, zoom, screen_size);
s_second = MapHelper.GetScreenLocationByLatLng(second, center, zoom, screen_size);
if (new Rectangle(new Point(0, 0), screen_size).Contains(s_first) || new Rectangle(new Point(0, 0), screen_size).Contains(s_second)) //在屏幕范围内
g.DrawLine(p, s_first, s_second);
if (i == 1) //起点
{
using (Font f = new Font("微软雅黑", 8))
{
string info = start_name + " 上车\n乘坐" + transits + " \n车程约" + Math.Round(duration / 60, 0) + "分钟";
Size info_size = TextRenderer.MeasureText(info, f);
GraphicsPath pt = new GraphicsPath();
pt.AddPolygon(new Point[] { new Point(s_first.X - info_size.Width / 2 - 5, s_first.Y - 25),
new Point(s_first.X - info_size.Width / 2 - 5, s_first.Y - 25 - info_size.Height - 10),
new Point(s_first.X + info_size.Width / 2 + 5, s_first.Y - 25 - info_size.Height - 10),
new Point(s_first.X + info_size.Width / 2 + 5,s_first.Y - 25),
new Point(s_first.X + 8,s_first.Y - 25),
new Point(s_first.X,s_first.Y-15),
new Point(s_first.X - 8,s_first.Y-25)});
g.FillPath(Brushes.Wheat, pt);
g.DrawPath(Pens.LightGray, pt);
g.DrawString(info, new Font("微软雅黑", 9), Brushes.Black, new PointF(s_first.X - info_size.Width/2, s_first.Y - info_size.Height - 25 - 5));
Bitmap b = type == 0 ? Properties.BMap.ico_bybus : Properties.BMap.ico_bysubway; //0公交 1地铁轻轨
g.DrawImage(b, new Rectangle(s_first.X - b.Width / 2, s_first.Y - b.Height / 2, b.Width, b.Height));
}
}
if (i == points.Length - 1) //终点
{
Bitmap b = type == 0 ? Properties.BMap.ico_bybus : Properties.BMap.ico_bysubway; //0公交 1地铁轻轨
g.DrawImage(b, new Rectangle(s_second.X - b.Width / 2, s_second.Y - b.Height / 2, b.Width, b.Height));
}
}
}
}
}
}
else if (Type == RouteType.Driving) //驾车
{
using (Pen p = new Pen(Color.FromArgb(250, Color.Green), 6)) //绿色
{
p.StartCap = System.Drawing.Drawing2D.LineCap.Round; //连接圆滑
p.EndCap = System.Drawing.Drawing2D.LineCap.Round;
p.LineJoin = System.Drawing.Drawing2D.LineJoin.Round;
foreach (JObject step in DataSource["steps"])
{
first = new LatLngPoint(double.Parse((string)step["stepOriginLocation"]["lng"]), double.Parse((string)step["stepOriginLocation"]["lat"]));
s_first = MapHelper.GetScreenLocationByLatLng(first, center, zoom, screen_size); //第一点
string[] points = ((string)step["path"]).Split(';'); //每一步骤中的点
for (int i = 0; i < points.Length; ++i)
{
if (i == 0) //与前一点连接
{
second = new LatLngPoint(double.Parse(points[i].Split(',')[0]), double.Parse(points[i].Split(',')[1]));
s_second = MapHelper.GetScreenLocationByLatLng(second, center, zoom, screen_size);
if (new Rectangle(new Point(0, 0), screen_size).Contains(s_first) || new Rectangle(new Point(0, 0), screen_size).Contains(s_second)) //在屏幕范围内
g.DrawLine(p, s_first, s_second);
}
else
{
first = new LatLngPoint(double.Parse(points[i - 1].Split(',')[0]), double.Parse(points[i - 1].Split(',')[1]));
second = new LatLngPoint(double.Parse(points[i].Split(',')[0]), double.Parse(points[i].Split(',')[1]));
s_first = MapHelper.GetScreenLocationByLatLng(first, center, zoom, screen_size);
s_second = MapHelper.GetScreenLocationByLatLng(second, center, zoom, screen_size);
if (new Rectangle(new Point(0, 0), screen_size).Contains(s_first) || new Rectangle(new Point(0, 0), screen_size).Contains(s_second)) //在屏幕范围内
g.DrawLine(p, s_first, s_second);
}
}
s_first = s_second;
second = new LatLngPoint(double.Parse((string)step["stepDestinationLocation"]["lng"]), double.Parse((string)step["stepDestinationLocation"]["lat"]));
s_second = MapHelper.GetScreenLocationByLatLng(second, center, zoom, screen_size);
if (new Rectangle(new Point(0, 0), screen_size).Contains(s_first) || new Rectangle(new Point(0, 0), screen_size).Contains(s_second)) //在屏幕范围内
g.DrawLine(p, s_first, s_second); //最后一点
}
}
}
else //步行
{
using (Pen p = new Pen(Color.FromArgb(250, Color.Gray), 6)) //灰色
{
p.StartCap = System.Drawing.Drawing2D.LineCap.Round; //连接圆滑
p.EndCap = System.Drawing.Drawing2D.LineCap.Round;
p.LineJoin = System.Drawing.Drawing2D.LineJoin.Round;
foreach (JObject step in DataSource["steps"])
{
first = new LatLngPoint(double.Parse((string)step["stepOriginLocation"]["lng"]), double.Parse((string)step["stepOriginLocation"]["lat"]));
s_first = MapHelper.GetScreenLocationByLatLng(first, center, zoom, screen_size); //第一点
string[] points = ((string)step["path"]).Split(';'); //每一步骤中的点
for (int i = 0; i < points.Length; ++i)
{
if (i == 0) //与前一点连接
{
second = new LatLngPoint(double.Parse(points[i].Split(',')[0]), double.Parse(points[i].Split(',')[1]));
s_second = MapHelper.GetScreenLocationByLatLng(second, center, zoom, screen_size);
if (new Rectangle(new Point(0, 0), screen_size).Contains(s_first) || new Rectangle(new Point(0, 0), screen_size).Contains(s_second)) //在屏幕范围内
g.DrawLine(p, s_first, s_second);
}
else
{
first = new LatLngPoint(double.Parse(points[i - 1].Split(',')[0]), double.Parse(points[i - 1].Split(',')[1]));
second = new LatLngPoint(double.Parse(points[i].Split(',')[0]), double.Parse(points[i].Split(',')[1]));
s_first = MapHelper.GetScreenLocationByLatLng(first, center, zoom, screen_size);
s_second = MapHelper.GetScreenLocationByLatLng(second, center, zoom, screen_size);
if (new Rectangle(new Point(0, 0), screen_size).Contains(s_first) || new Rectangle(new Point(0, 0), screen_size).Contains(s_second)) //在屏幕范围内
g.DrawLine(p, s_first, s_second);
}
}
s_first = s_second;
second = new LatLngPoint(double.Parse((string)step["stepDestinationLocation"]["lng"]), double.Parse((string)step["stepDestinationLocation"]["lat"]));
s_second = MapHelper.GetScreenLocationByLatLng(second, center, zoom, screen_size);
if (new Rectangle(new Point(0, 0), screen_size).Contains(s_first) || new Rectangle(new Point(0, 0), screen_size).Contains(s_second)) //在屏幕范围内
g.DrawLine(p, s_first, s_second); //最后一点
}
}
}
if (HighlightPath != null)
{
using (Pen p3 = new Pen(Color.FromArgb(250, Color.Red), 6))
{
p3.StartCap = System.Drawing.Drawing2D.LineCap.Round; //连接圆滑
p3.EndCap = System.Drawing.Drawing2D.LineCap.Round;
p3.LineJoin = System.Drawing.Drawing2D.LineJoin.Round;
string[] points = HighlightPath.Split(';'); //高亮部分中的点
for (int i = points.Length - 1; i > 0; --i)
{
first = new LatLngPoint(double.Parse(points[i - 1].Split(',')[0]), double.Parse(points[i - 1].Split(',')[1]));
second = new LatLngPoint(double.Parse(points[i].Split(',')[0]), double.Parse(points[i].Split(',')[1]));
s_first = MapHelper.GetScreenLocationByLatLng(first, center, zoom, screen_size);
s_second = MapHelper.GetScreenLocationByLatLng(second, center, zoom, screen_size);
if (new Rectangle(new Point(0, 0), screen_size).Contains(s_first) || new Rectangle(new Point(0, 0), screen_size).Contains(s_second)) //在屏幕范围内
g.DrawLine(p3, s_first, s_second);
}
}
}
}
}
/// <summary>
/// 绘制
/// </summary>
/// <param name="g"></param>
/// <param name="center"></param>
/// <param name="zoom"></param>
/// <param name="screen_size"></param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, Size screen_size)
{
//偏移处理
//LatLngPoint offset = new LatLngPoint(MapHelper.OFFSET_LNG, MapHelper.OFFSET_LAT);
//PointF offset_p = MapHelper.GetLocationByLatLng(offset, zoom);
PointF center_p = MapHelper.GetLocationByLatLng(center, zoom); //中心点像素坐标
PointF toleft_p = new PointF(X * 256, (Y + 1) * 256); //瓦片左上角像素坐标
PointF p = new PointF((int)(screen_size.Width / 2 + (toleft_p.X - center_p.X)), (int)(screen_size.Height / 2 + (toleft_p.Y - center_p.Y) * (-1))); //屏幕坐标
//在绘制范围之内
if (!new Rectangle(-256, -256, screen_size.Width + 256, screen_size.Height + 256).Contains(new Point((int)p.X, (int)p.Y)))
{
return;
}
if (Mode == MapMode.Normal && _normal == null && !_loading) //开始下载普通瓦片
{
_loading = true;
if (!_load_error)
((Action)(delegate()
{
MapService ms = new MapService();
_normal = ms.LoadMapTile(X, Y, Zoom, Mode, LoadMode);
_loading = false;
if (_normal == null)
{
_load_error = true;
}
BMapControl.Invoke((Action)delegate()
{
BMapControl.Invalidate();
});
})).BeginInvoke(null, null);
}
if (Mode == MapMode.RoadNet && _road_net == null && !_loading) //开始下载道路网瓦片
{
_loading = true;
if (!_load_error)
((Action)(delegate()
{
MapService ms = new MapService();
_road_net = ms.LoadMapTile(X, Y, Zoom, Mode, LoadMode);
_loading = false;
if (_road_net == null)
{
_load_error = true;
}
BMapControl.Invoke((Action)delegate()
{
BMapControl.Invalidate();
});
})).BeginInvoke(null, null);
}
if (Mode == MapMode.Satellite && _sate == null && !_loading) //开始下载卫星图瓦片
{
_loading = true;
if (!_load_error)
((Action)(delegate()
{
MapService ms = new MapService();
_sate = ms.LoadMapTile(X, Y, Zoom, Mode, LoadMode);
_loading = false;
if (_sate == null)
{
_load_error = true;
}
BMapControl.Invoke((Action)delegate()
{
BMapControl.Invalidate();
});
})).BeginInvoke(null, null);
}
if (Mode == MapMode.Sate_RoadNet && _sate == null && !_loading) //开始下载卫星图瓦片
{
_loading = true;
if (!_load_error)
((Action)(delegate()
{
MapService ms = new MapService();
_sate = ms.LoadMapTile(X, Y, Zoom, MapMode.Satellite, LoadMode);
_loading = false;
if (_sate == null)
{
_load_error = true;
}
BMapControl.Invoke((Action)delegate()
{
BMapControl.Invalidate();
});
})).BeginInvoke(null, null);
}
if (Mode == MapMode.Sate_RoadNet && _road_net == null && !_loading) //开始下载道路网瓦片
{
_loading = true;
if (!_load_error)
((Action)(delegate()
{
MapService ms = new MapService();
_road_net = ms.LoadMapTile(X, Y, Zoom, MapMode.RoadNet, LoadMode);
_loading = false;
if (_road_net == null)
{
_load_error = true;
}
BMapControl.Invoke((Action)delegate()
{
BMapControl.Invalidate();
});
})).BeginInvoke(null, null);
}
string error = "正在加载图片...";
if (_load_error)
{
error = "图片加载失败...";
}
if (Mode == MapMode.Normal) //绘制普通地图
{
if (_normal == null)
{
g.FillRectangle(Brushes.LightGray, new RectangleF(p, new SizeF(256, 256)));
g.DrawRectangle(Pens.Gray, p.X, p.Y, 256, 256);
using (Font f = new Font("微软雅黑", 10))
{
g.DrawString(error, f, Brushes.Red, new PointF(p.X + 60, p.Y + 100));
}
}
else
{
g.DrawImage(_normal, new RectangleF(p, new SizeF(256, 256)));
}
}
if (Mode == MapMode.RoadNet) //绘制道路网
{
if (_road_net == null)
{
g.FillRectangle(Brushes.LightGray, new RectangleF(p, new SizeF(256, 256)));
g.DrawRectangle(Pens.Gray, p.X, p.Y, 256, 256);
using (Font f = new Font("微软雅黑", 10))
{
g.DrawString(error, f, Brushes.Red, new PointF(p.X + 60, p.Y + 100));
}
}
else
{
g.DrawImage(_road_net, new RectangleF(p, new SizeF(256, 256)));
}
}
if (Mode == MapMode.Satellite) //绘制卫星图
{
if (_sate == null)
{
g.FillRectangle(Brushes.LightGray, new RectangleF(p, new SizeF(256, 256)));
g.DrawRectangle(Pens.Gray, p.X, p.Y, 256, 256);
using (Font f = new Font("微软雅黑", 10))
{
g.DrawString(error, f, Brushes.Red, new PointF(p.X + 60, p.Y + 100));
}
}
else
{
g.DrawImage(_sate, new RectangleF(p, new SizeF(256, 256)));
}
}
if (Mode == MapMode.Sate_RoadNet) //绘制卫星图和道路网
{
if (_sate == null && _road_net == null)
{
g.FillRectangle(Brushes.LightGray, new RectangleF(p, new SizeF(256, 256)));
g.DrawRectangle(Pens.Gray, p.X, p.Y, 256, 256);
using (Font f = new Font("微软雅黑", 10))
{
g.DrawString(error, f, Brushes.Red, new PointF(p.X + 60, p.Y + 100));
}
}
else
{
//先绘制卫星图 再绘制道路网
if (_sate != null)
g.DrawImage(_sate, new RectangleF(p, new SizeF(256, 256)));
if(_road_net != null)
g.DrawImage(_road_net, new RectangleF(p, new SizeF(256, 256)));
}
}
}
/// <summary>
/// 绘制方法
/// </summary>
/// <param name="g"></param>
/// <param name="center"></param>
/// <param name="zoom"></param>
/// <param name="screen_size"></param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, System.Drawing.Size screen_size)
{
Point p = MapHelper.GetScreenLocationByLatLng(Location, center, zoom, screen_size); //屏幕坐标
Bitmap b = Properties.BMap.ico_marker;
g.DrawImage(b, new Rectangle(p.X - b.Width / 2, p.Y - b.Height, b.Width, b.Height));
using (Font f = new Font("微软雅黑", 9))
{
Size s = TextRenderer.MeasureText(Name, f); //字体占用像素
g.FillRectangle(Brushes.Wheat, new Rectangle(new Point(p.X + b.Width / 2 + 5, p.Y - b.Height), new Size(s.Width + 6, s.Height + 6)));
g.DrawRectangle(Pens.Gray, new Rectangle(new Point(p.X + b.Width / 2 + 5, p.Y - b.Height), new Size(s.Width + 6, s.Height + 6)));
g.DrawString(Name, f, Brushes.Black, new PointF(p.X + b.Width / 2 + 5 + 3, p.Y - b.Height + 3));
}
_rect = new Rectangle(p.X - b.Width / 2, p.Y - b.Height, b.Width, b.Height);
}
/// <summary> /// 绘制方法 /// </summary> /// <param name="g">画布</param> /// <param name="center">地图中心点坐标</param> /// <param name="zoom">当前地图缩放级别</param> /// <param name="screen_size">屏幕大小</param> public abstract void Draw(Graphics g, LatLngPoint center, int zoom, Size screen_size);
