private void PointMove(MapPointInfo mapPoint)
{
if (PointMove_Evnet != null)
{
PointMove_Evnet(mapPoint);
}
}
private void SelectedMapPoint(MapPointInfo SelectedMapPointValue)
{
if (SelectedMapPointEvent != null)
{
SelectedMapPointEvent(this, SelectedMapPointValue);
}
}
public void SelectedMapPoint(MapPointInfo MapPointInfo)
{
if (SelectedMapPointEvent != null)
{
SelectedMapPointEvent(this, MapPointInfo);
}
}
/// <summary>
/// 显示地图_设置地图中心点
/// </summary>
/// <param name="pointDisplayMapCenter"></param>
public void DisplayMap_SetCenter(MapPointInfo point)
{
if (mapMain != null)
{
LegalLonAndLat(ref point.dblLon, ref point.dblLat);
pointCurrentMapCenter = new PointD(point.dblLon, point.dblLat);
DisplayMap();
}
}
/// <summary>
/// JS脚本调用用于显示标注的经纬度 160728
/// </summary>
/// <param name="lng"></param>
/// <param name="lat"></param>
/// <param name="level"></param>
public void Setlnglat(string lng, string lat, string level)
{
MapPointInfo mappointInfo = new MapPointInfo();
mappointInfo.dblLon = Convert.ToDouble(lng);
mappointInfo.dblLat = Convert.ToDouble(lat);
mappointInfo.intMapLevel = Convert.ToInt32(level);
mappointInfo.cordinateSyatem = Enum_CordinateSystem.BD_09;
SelectedMapPoint(mappointInfo);
}
/// <summary>
/// Html页面事件_显示标注点
/// </summary>
/// <param name="point"></param>
/// <param name="strIconFilePath"></param>
private void ToHtml_DisplayMarker(MapPointInfo point, string strIconFilePath)
{
if (Maploaded)
{
while (!this.IsDisposed)
{
if (wbMain.ReadyState == WebBrowserReadyState.Complete)
{
BeginInvoke(new EventHandler(delegate
{
wbMain.Document.InvokeScript("DisplayMarker", new object[] { point.dblLon, point.dblLat, strIconFilePath });
}));
break;
}
Delay(50); //系统延迟50毫秒
}
}
}
/// <summary>
/// 设置标注点
/// </summary>
public void DisplayMap_SetMarker(MapPointInfo point, string strImageFileName)
{
//设置图片位置，将状态置为显示
PointD pointDisplatPos = new PointD(point.dblLon, point.dblLat);
PointD p = mapMain.WorldToImage(pointCurrentMapCenter, pointDisplatPos, CurrentMapLevel); //计算点在地图上的位置
PictureBox pic = new PictureBox();
pic.Image = Image.FromFile(strMapIconPath + "\\" + strImageFileName);
pic.Size = new Size(32, 32);
pic.BackColor = Color.Transparent;
pic.Location = new Point(Convert.ToInt32(picMap.Width / 2 + p.X - pic.Width / 2), Convert.ToInt32(picMap.Height / 2 + p.Y - pic.Height));
pic.Tag = point;
if (dicPicValue.ContainsKey(intPicValueKey))
{
dicPicValue[intPicValueKey].Dispose();
}
dicPicValue[intPicValueKey] = pic;
intPicValueKey++;
picMap.Controls.Add(pic);
}
public MapPointInfo ToBD_09()
{
MapPointInfo result = new MapPointInfo();
result.intMapLevel = intMapLevel;
result.cordinateSyatem = Enum_CordinateSystem.BD_09;
double Temp_dblLon = dblLon;
double Temp_dblLat = dblLat;
if (cordinateSyatem == Enum_CordinateSystem.WGS_84)
{
WGSToBD_encrypt(dblLon, dblLat, out Temp_dblLon, out Temp_dblLat);
}
else if (cordinateSyatem == Enum_CordinateSystem.GCJ_02)
{
GCJToBD_encrypt(dblLon, dblLat, out Temp_dblLon, out Temp_dblLat);
}
result.dblLon = Temp_dblLon;
result.dblLat = Temp_dblLat;
return(result);
}
/// <summary>
/// 显示地图
/// </summary>
private void DisplayMap()
{
if (mapMain != null)
{
picMap.Image = mapMain.GetMapImage(pointCurrentMapCenter, picMap.Size, CurrentMapLevel);
if (dicPicValue != null && dicPicValue.Count > 0)
{
foreach (PictureBox pic in dicPicValue.Values)
{
if (pic != null && pic.Visible == true && pic.Parent == picMap)
{
MapPointInfo point = (MapPointInfo)pic.Tag;
PointD pointDisplatPos = new PointD(point.dblLon, point.dblLat);
PointD p = mapMain.WorldToImage(pointCurrentMapCenter, pointDisplatPos, CurrentMapLevel); //计算点在地图上的位置
pic.Location = new Point(Convert.ToInt32(picMap.Width / 2 + p.X - pic.Width / 2), Convert.ToInt32(picMap.Height / 2 + p.Y - pic.Height));
}
}
}
if (dicLabel != null && dicLabel.Count > 0)
{
foreach (Label pic in dicLabel.Values)
{
if (pic != null && pic.Visible == true && pic.Parent == picMap)
{
MapPointInfo point = (MapPointInfo)pic.Tag;
PointD pointDisplatPos = new PointD(point.dblLon, point.dblLat);
PointD p = mapMain.WorldToImage(pointCurrentMapCenter, pointDisplatPos, CurrentMapLevel); //计算点在地图上的位置
pic.Location = new Point(Convert.ToInt32(picMap.Width / 2 + p.X - pic.Width / 2), Convert.ToInt32(picMap.Height / 2 + p.Y - pic.Height) + 32);
}
}
}
if (picsDisplayPointList != null && picsDisplayPointList.Length > 0)
{
//存在显示点
foreach (PictureBox pic in picsDisplayPointList)
{
if (pic != null && pic.Visible == true && pic.Tag != null && pic.Parent == picMap)
{
PointD pointDisplatPos = (PointD)pic.Tag;
PointD p = mapMain.WorldToImage(pointCurrentMapCenter, pointDisplatPos, CurrentMapLevel); //计算点在地图上的位置
pic.Location = new Point(Convert.ToInt32(picMap.Width / 2 + p.X - 8), Convert.ToInt32(picMap.Height / 2 + p.Y - 8));
}
}
}
if (picsDisplayMulchList != null && picsDisplayMulchList.Length > 0)
{
//存在显示区域
foreach (PictureBox pic in picsDisplayMulchList)
{
if (pic != null && pic.Visible == true && pic.Tag != null && pic.Parent == picMap)
{
//PointD pointDisplatPos = (PointD)pic.Tag;
//PointD p = mapMain.WorldToImage(pointCurrentMapCenter, pointDisplatPos, CurrentMapLevel); //计算点在地图上的位置
//pic.Location = new Point(Convert.ToInt32(picMap.Width / 2 + p.X - 8), Convert.ToInt32(picMap.Height / 2 + p.Y - 8));
PointAndLevel pl = (PointAndLevel)pic.Tag;
PointD pointDisplatPos = new PointD(pl.lon, pl.lat);
PointD p = mapMain.WorldToImage(pointCurrentMapCenter, pointDisplatPos, CurrentMapLevel); //计算点在地图上的位置
pic.Location = new Point(Convert.ToInt32(picMap.Width / 2 + p.X - 8), Convert.ToInt32(picMap.Height / 2 + p.Y - 8));
//整体思路
//1.添加时设置显示等级，及默认大小
//2.在显示地图是判断当前等级及显示等级大小（比较）
//3.根据比较结果放大或者缩小图片
int intDisplayMapLevel = pl.intMapLevel;
//正数表示需要放大 0表示当前等级正常 负数表示需要缩小 以300px 为基准
Size sizeBasic = new Size(300, 300);
int intDisparity = intCurrentMapLevel - intDisplayMapLevel;
if (intDisparity > 0)
{
//放大
double Temp_dbl = Math.Pow(2, intDisparity);
sizeBasic = new Size(Convert.ToInt32(300 * Temp_dbl), Convert.ToInt32(300 * Temp_dbl));
}
else if (intDisparity < 0)
{
//缩小
intDisparity = Math.Abs(intDisparity);
double Temp_dbl = Math.Pow(2, intDisparity);
sizeBasic = new Size(Convert.ToInt32(300 / Temp_dbl), Convert.ToInt32(300 / Temp_dbl));
}
else if (intDisparity == 0)
{
//默认值
pic.Size = sizeBasic;
}
pic.Size = sizeBasic;
}
}
}
Display(pointCurrentMapCenter.X, pointCurrentMapCenter.Y, intCurrentMapLevel, "");
}
}
public void BaiduOnlineMap_SelectedMapPointEvent(object sender, MapPointInfo mappointInfo)
{
SelectedMapPoint(mappointInfo);
}
/// <summary>
/// 设置标注点
/// </summary>
public void DisplayMap_SetMarker(MapPointInfo point, string strImageFileName)
{
ToHtml_DisplayMarker(point, strMapIconPath + "\\" + strImageFileName);
}
/// 设置地图中心点
/// </summary>
/// <param name="dblLon"></param>
/// <param name="dblLat"></param>
public void DisplayMap_SetCenter(MapPointInfo point)
{
ToHtml_SetCenter(point);
}
