/// <summary>
/// Cast linearring to web linearring
/// </summary>
/// <param name="linearRing"></param>
/// <returns></returns>
public static WebLinearRing ToWebLinearRing(this ILinearRing linearRing)
{
return(new WebLinearRing
{
Points = (from c in linearRing.Coordinates select c.ToWebPoint()).ToList()
});
}
internal static Geometries.LinearRing ToSharpMapLinearRing(NTSLinearRing geom)
{
Collection <Geometries.Point> vertices = new Collection <Geometries.Point>();
foreach (Coordinate coordinate in geom.Coordinates)
{
vertices.Add(ToSharpMapPoint(coordinate));
}
return(new Geometries.LinearRing(vertices));
}
internal static DotSpatial.Topology.LinearRing ToDotSpatialLinearRing(GeoAPI.Geometries.ILinearRing geom)
{
Collection <DotSpatial.Topology.Point> vertices = new Collection <DotSpatial.Topology.Point>();
foreach (Coordinate coordinate in geom.Coordinates)
{
DotSpatial.Topology.Point p = ToDotSpatialPoint(coordinate);
vertices.Add(p);
}
return(new DotSpatial.Topology.LinearRing(vertices));
}
private static ILinearRing ReProject(this ILinearRing linearRing, ICoordinateTransformation transformator)
{
var pointCount = linearRing.NumPoints;
var coordinates = new Coordinate[pointCount];
for (var i = 0; i < pointCount; i++)
{
coordinates[i] = linearRing.GetCoordinateN(i).ReProject(transformator);
}
return(new LinearRing(coordinates));
}
internal static NTSPolygon ToNTSPolygon(Geometries.Polygon geom,
IGeometryFactory factory)
{
NTSLinearRing shell = ToNTSLinearRing(geom.ExteriorRing, factory);
NTSLinearRing[] holes = new NTSLinearRing[geom.InteriorRings.Count];
int index = 0;
foreach (Geometries.LinearRing hole in geom.InteriorRings)
{
holes[index++] = ToNTSLinearRing(hole, factory);
}
return(factory.CreatePolygon(shell, holes) as NTSPolygon);
}
private static IPolygon ReProject(this IPolygon polygon, ICoordinateTransformation transformator)
{
var shell = ((ILinearRing)polygon.ExteriorRing).ReProject(transformator);
var ringCount = polygon.NumInteriorRings;
var holes = new ILinearRing[ringCount];
for (var i = 0; i < ringCount; i++)
{
holes[i] = ((ILinearRing)polygon.GetInteriorRingN(i)).ReProject(transformator);
}
return(new Polygon(shell, holes));
}
private static SMGeometry SqlGeometryToSharpMapPolygon(SqlGeometry geometry, Factory factory)
{
var fact = factory ?? Services.CreateGeometryFactory((int)geometry.STSrid);
//exterior ring
var exterior = fact.CreateLinearRing(GetPoints(geometry.STExteriorRing()));
SMLinearRing[] interior = null;
if (geometry.STNumInteriorRing() > 0)
{
interior = new SMLinearRing[(int)geometry.STNumInteriorRing()];
for (var i = 1; i <= geometry.STNumInteriorRing(); i++)
{
interior[i - 1] = fact.CreateLinearRing(GetPoints(geometry.STInteriorRingN(i)));
}
}
return(Services.CreateGeometryFactory((int)geometry.STSrid).CreatePolygon(exterior, interior));
}
private static void AddRing(SqlGeometryBuilder builder, SMLinearRing linearRing)
{
if (linearRing.NumPoints < 3)
{
return;
}
//if (linearRing.Area == 0)
// return;
var coords = linearRing.Coordinates;
builder.BeginFigure(coords[0].X, coords[0].Y);
for (var i = 1; i < linearRing.NumPoints; i++)
{
var pt = coords[i];
builder.AddLine(pt.X, pt.Y);
}
builder.EndFigure();
}
/// <summary>
/// Cast Web Polygon to Polygon
/// </summary>
/// <param name="webPolygon"></param>
/// <returns></returns>
public static IPolygon ToPolygon(this WebPolygon webPolygon)
{
//First ring is shell
var shell = webPolygon.LinearRings[0].ToLinearRing();
ILinearRing[] holes = null;
var ringCount = webPolygon.LinearRings.Count;
//All other rings are holes
if (ringCount > 1)
{
holes = new ILinearRing[ringCount - 1];
for (var i = 1; i < ringCount; i++)
{
holes[i - 1] = webPolygon.LinearRings[i].ToLinearRing();
}
}
return(new Polygon(shell, holes));
}
private static SMGeometry SqlGeometryToSharpMapPolygon(SqlGeometry geometry, Factory factory)
{
var fact = factory ?? Services.CreateGeometryFactory((int)geometry.STSrid);
//exterior ring
var exterior = fact.CreateLinearRing(GetPoints(geometry.STExteriorRing()));
SMLinearRing[] interior = null;
if (geometry.STNumInteriorRing()>0)
{
interior = new SMLinearRing[(int)geometry.STNumInteriorRing()];
for (var i = 1; i <= geometry.STNumInteriorRing(); i++)
interior[i - 1] = fact.CreateLinearRing(GetPoints(geometry.STInteriorRingN(i)));
}
return Services.CreateGeometryFactory((int)geometry.STSrid).CreatePolygon(exterior, interior);
}
private static void AddRing(SqlGeometryBuilder builder, SMLinearRing linearRing)
{
if (linearRing.NumPoints < 3)
return;
//if (linearRing.Area == 0)
// return;
var coords = linearRing.Coordinates;
builder.BeginFigure(coords[0].X, coords[0].Y);
for (var i = 1; i < linearRing.NumPoints; i++)
{
var pt = coords[i];
builder.AddLine(pt.X, pt.Y);
}
builder.EndFigure();
}
internal static Geometries.LinearRing ToSharpMapLinearRing(NTSLinearRing geom)
{
Collection<Geometries.Point> vertices = new Collection<Geometries.Point>();
foreach (Coordinate coordinate in geom.Coordinates)
vertices.Add(ToSharpMapPoint(coordinate));
return new Geometries.LinearRing(vertices);
}
internal static NTSPolygon ToNTSPolygon(Geometries.Polygon geom,
IGeometryFactory factory)
{
NTSLinearRing shell = ToNTSLinearRing(geom.ExteriorRing, factory);
NTSLinearRing[] holes = new NTSLinearRing[geom.InteriorRings.Count];
int index = 0;
foreach (Geometries.LinearRing hole in geom.InteriorRings)
holes[index++] = ToNTSLinearRing(hole, factory);
return factory.CreatePolygon(shell, holes) as NTSPolygon;
}
