/// <summary>
/// 显示覆盖物信息
/// </summary>
/// <param name="intIndex">图片索引</param>
/// <param name="dblLon">经度</param>
/// <param name="dblLat">纬度</param>
/// <param name="intMapLevel">地图显示等级</param>
public void DisplayMulchImage(int intIndex, double dblLon, double dblLat, int intMapLevel)
{
if (picsDisplayMulchList != null)
{
PointD pointDisplatPos = new PointD(dblLon, dblLat);
PointD p = mapMain.WorldToImage(pointCurrentMapCenter, pointDisplatPos, CurrentMapLevel); //计算点在地图上的位置
picsDisplayMulchList[intIndex].Location = new Point(Convert.ToInt32(picMap.Width / 2 + p.X - 8), Convert.ToInt32(picMap.Height / 2 + p.Y - 8));
picsDisplayMulchList[intIndex].Visible = true;
PointAndLevel pl = new PointAndLevel();
pl.lon = dblLon;
pl.lat = dblLat;
pl.intMapLevel = intMapLevel;
picsDisplayMulchList[intIndex].Tag = pl;
}
}
/// <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, "");
}
}
