public HRURequestFeature(DbGeometry catchmentGeometry, HRURequestFeatureAttributes baseAttributes, int i)
{
var rings = new List <List <double[]> >();
var catchmentGeometryExteriorRing = catchmentGeometry.ExteriorRing;
var exteriorRingCoordinates = GetRingCoordinates(catchmentGeometryExteriorRing);
// need to account for interior rings
// need to skip geometries with exterior rings I guess
rings.Add(exteriorRingCoordinates);
for (var j = 1; j <= catchmentGeometry.InteriorRingCount; j++)
{
var interiorRing = catchmentGeometry.InteriorRingAt(j);
var interiorRingCoordinates = GetRingCoordinates(interiorRing);
rings.Add(interiorRingCoordinates);
}
Geometry = new EsriPolygonGeometry
{
Rings = rings
};
Attributes = new HRURequestFeatureAttributes
{
ObjectID = baseAttributes.ObjectID,
QueryFeatureID = i,
Area = baseAttributes.Area,
Length = baseAttributes.Length
};
}
public static Polygon PolygonFromDbGeometry(DbGeometry inp)
{
if (inp.SpatialTypeName != "Polygon")
{
throw new ArgumentException();
}
var linearRings = new List <LineString>();
// first get the exterior ring
var exteriorRing = LineStringFromDbGeometry(inp.ExteriorRing);
Check.Require(exteriorRing.IsLinearRing(), "We expect the exterior ring to be a Linear Ring for this to be a polygon!");
linearRings.Add(exteriorRing);
// then get any interior rings
for (var i = 1; i <= inp.InteriorRingCount; ++i)
{
linearRings.Add(LineStringFromDbGeometry(inp.InteriorRingAt(i)));
}
var polygon = new Polygon(linearRings);
return(polygon);
}
