public _prop_SnapLtrans getAllData(double lat, double lon, double radius)
{
_prop_SnapLtrans data_gis = null;
PolylineDistanceInfo polylineDistanceInfo;
PointD pt = new PointD();
pt.X = lon;
pt.Y = lat;
if (!(sf.ShapeType == ShapeType.PolyLine || sf.ShapeType == ShapeType.PolyLineM))
{
return(null);
}
int index;
EGIS.ShapeFileLib.ConversionFunctions.RefEllipse = 23;
index = sf.GetClosestShape(pt, radius, out polylineDistanceInfo);
if (index >= 0)
{
Console.Out.WriteLine("LineSegmentSide:" + polylineDistanceInfo.LineSegmentSide);
if (sf.ShapeType == ShapeType.PolyLine)
{
data_gis = new _prop_SnapLtrans();
double total = 0;
PointD[] data = sf.GetShapeDataD(index)[0];
for (int i = 0; i < data.Length - 1; i++)
{
total = total + ConversionFunctions.DistanceBetweenLatLongPoints(INDEX_WGS_84, data[i].Y, data[i].X, data[i + 1].Y, data[i + 1].X);
}
double distance_to_end = 0;
for (int i = polylineDistanceInfo.PointIndex; i < data.Length - 1; i++)
{
distance_to_end = distance_to_end + ConversionFunctions.DistanceBetweenLatLongPoints(INDEX_WGS_84, data[i].Y, data[i].X, data[i + 1].Y, data[i + 1].X);
}
double distance_snap = ConversionFunctions.DistanceBetweenLatLongPoints(INDEX_WGS_84, lat, lon, polylineDistanceInfo.PolylinePoint.Y, polylineDistanceInfo.PolylinePoint.X);
string side_of_road = GetLineSegmentSideDescription(polylineDistanceInfo.LineSegmentSide);
double distance_to_start = total - distance_to_end;
data_gis.lattitude_on_line = polylineDistanceInfo.PolylinePoint.Y;
data_gis.lontitude_on_line = polylineDistanceInfo.PolylinePoint.X;
data_gis.side_of_line = side_of_road;
data_gis.snap_distance = distance_snap;
data_gis.index_shape = index;
data_gis.tVal = polylineDistanceInfo.TVal;
data_gis.calculate_length_line = total;
data_gis.distance_snap_to_start = distance_to_start;
data_gis.distance_snap_to_end = distance_to_end;
data_gis.data_db = this.dbr.GetFields(index);
data_gis.dt = DbfToTable(dbr.GetFieldNames(), data_gis.data_db);
if (data.Length > 0)
{
data_gis.lat_start = data[0].Y;
data_gis.lon_start = data[0].X;
data_gis.lat_end = data[data.Length - 1].Y;
data_gis.lon_end = data[data.Length - 1].X;
}
}
}
return(data_gis);
}
static public double DistanceBetweenLatLongPoints(double lat1, double lon1, double lat2, double lon2)
{
return(ConversionFunctions.DistanceBetweenLatLongPoints(INDEX_WGS_84, lat1, lon1, lat2, lon2));
}
