/// <summary>
/// 获取地图块拼接信息
/// </summary>
/// <param name="box"></param>
/// <param name="size"></param>
/// <param name="level"></param>
/// <returns></returns>
public ArrayList GetAllmapPieceInfo(BoundingBox box, int level)
{
ArrayList list = new ArrayList();
PauseMapViewInfo PI = new PauseMapViewInfo(box, level);
SogouMapInfo maptypeinfo = new SogouMapInfo();
//计算第一个图片块的左上角所处图像位置
PointD p = maptypeinfo.PixelToImage(PI.topPoint, new PointD(box.Min.X, box.Max.Y), level);
#region 计算图片
int Width = PI.maxColIndex - PI.minColIndex + 1;
int Height = PI.maxRowIndex - PI.minRowIndex + 1;
int centerX = (Width - 1) / 2;
int centerY = (Height - 1) / 2;
int intTest = 0;
for (int rowIndex = PI.minRowIndex; rowIndex <= PI.maxRowIndex; rowIndex++)
{
for (int colIndex = PI.minColIndex; colIndex <= PI.maxColIndex; colIndex++)
{
intTest++;
Rectangle destRect = new Rectangle((colIndex - PI.minColIndex) * maptypeinfo.tileSize + (int)Math.Round(p.X), (rowIndex - PI.minRowIndex) * maptypeinfo.tileSize + (int)Math.Round(p.Y), maptypeinfo.tileSize, maptypeinfo.tileSize);
string filename = ZYB.GIS.GoogleMapType.GetFileName(colIndex, rowIndex, level);
Rectangle srcRect = new Rectangle(0, 0, maptypeinfo.tileSize, maptypeinfo.tileSize);
MapPieceInfo mp = new MapPieceInfo();
int x = colIndex - PI.minColIndex;
int y = rowIndex - PI.minRowIndex;
mp.Priority = (x - centerX) * (x - centerX) + (y - centerY) * (y - centerY);
mp.filename = filename;
mp.destRect = destRect;
mp.srcRect = srcRect;
list.Add(mp);
}
}
string ww = intTest.ToString();
#endregion
return(RePrioritymapPiece(list));
}
/// <summary>
/// zyb081217 获取可见区域的地图块及相关信息
/// </summary>
/// <param name="pTop"></param>
/// <param name="level"></param>
/// <param name="width"></param>
/// <param name="height"></param>
public PauseMapViewInfo(BoundingBox box, int level)
{
SogouMapInfo maptypeinfo = new SogouMapInfo();
levelSize = (int)Math.Pow(2, level);
PointD maxPoint = maptypeinfo.projection.LatLngToPixel(box.Max);
PointD minPoint = maptypeinfo.projection.LatLngToPixel(box.Min);
minColIndex = (int)Math.Floor((minPoint.X - maptypeinfo.PixelMaxBox.Min.X) / (maptypeinfo.PixelMaxBox.Max.X - maptypeinfo.PixelMaxBox.Min.X) * (double)levelSize);
maxColIndex = (int)Math.Floor((maxPoint.X - maptypeinfo.PixelMaxBox.Min.X) / (maptypeinfo.PixelMaxBox.Max.X - maptypeinfo.PixelMaxBox.Min.X) * (double)levelSize);
minRowIndex = (int)Math.Floor((maptypeinfo.PixelMaxBox.Max.Y - maxPoint.Y) / (maptypeinfo.PixelMaxBox.Max.Y - maptypeinfo.PixelMaxBox.Min.Y) * (double)levelSize);
maxRowIndex = (int)Math.Floor((maptypeinfo.PixelMaxBox.Max.Y - minPoint.Y) / (maptypeinfo.PixelMaxBox.Max.Y - maptypeinfo.PixelMaxBox.Min.Y) * (double)levelSize);
if (minColIndex < 0)
{
minColIndex = 0;
}
if (minRowIndex < 0)
{
minRowIndex = 0;
}
if (maxColIndex >= levelSize)
{
maxColIndex = levelSize - 1;
}
if (maxRowIndex >= levelSize)
{
maxRowIndex = levelSize - 1;
}
float topX = ((float)minColIndex / (float)levelSize) * (float)(maptypeinfo.PixelMaxBox.Max.X - maptypeinfo.PixelMaxBox.Min.X) + (float)maptypeinfo.PixelMaxBox.Min.X;
float topY = (float)maptypeinfo.PixelMaxBox.Max.Y - ((float)minRowIndex / (float)levelSize) * (float)(maptypeinfo.PixelMaxBox.Max.Y - maptypeinfo.PixelMaxBox.Min.Y);
topPoint = new PointD(topX, topY);
this.nowColIndex = minColIndex;
this.nowRowIndex = minRowIndex;
}
public SogouMap(string strFilePathBin, string strFilePathInfo)
{
this.strFilePathBin = strFilePathBin;
this.strFilePathInfo = strFilePathInfo;
mapInfo = new SogouMapInfo();
}
