public System.Drawing.Point getNewPixelOffsetOfLeftTop(int level, int row1, int col1)
{
BdCoodOffsetProvider p = BdCoodOffsetProvider.getInstance();
System.Drawing.Point org_leftBottom = getMetersFromRowCol(row1, col1, level);
LatLng lpt = MetersToLatLon(org_leftBottom);
LatLng testPoint = p.doAdjust(lpt, level);
LatLng meters = BdCoodOffsetProvider.BaiduGPS2BaiduMercator(new LatLng(testPoint.latitude, testPoint.longitude));
double resolution = GetResolutionForLevel(level);
System.Drawing.Point new_leftBottom = new System.Drawing.Point((int)(meters.longitude / resolution), (int)(meters.latitude / resolution));
return(new_leftBottom);
}
public RCRange getBaiduRCRangeFromGPS(Envelope area, int level)
{
int PIC_SIZE = 256;
double resolution = GetResolutionForLevel(level);
BdCoodOffsetProvider p = BdCoodOffsetProvider.getInstance();
LatLng leftTopLpt = new LatLng(area.YMax, area.XMin);
LatLng testPoint = p.doAdjust(leftTopLpt, level);
LatLng meters = BdCoodOffsetProvider.BaiduGPS2BaiduMercator(new LatLng(testPoint.latitude, testPoint.longitude));
System.Drawing.Point new_leftTop = new System.Drawing.Point((int)(meters.longitude / resolution), (int)(meters.latitude / resolution));
LatLng rightBottomLpt = new LatLng(area.YMin, area.XMax);
testPoint = p.doAdjust(rightBottomLpt, level);
meters = BdCoodOffsetProvider.BaiduGPS2BaiduMercator(new LatLng(testPoint.latitude, testPoint.longitude));
System.Drawing.Point new_rightBottom = new System.Drawing.Point((int)(meters.longitude / resolution), (int)(meters.latitude / resolution));
return(new RCRange()
{
MaxCol = (new_rightBottom.X + 5) / PIC_SIZE, MaxRow = (new_leftTop.Y + 5) / PIC_SIZE, MinCol = (new_leftTop.X - 5) / PIC_SIZE, MinRow = (new_rightBottom.Y - 5) / PIC_SIZE
});
}