private void PopulateFigure(IGeometrySink110 sink)
{
_figure[0].BeginFigure(sink);
for (int i = 1; i < _figure.Count; i++)
{
_figure[i].AddLine(sink);
}
sink.EndFigure();
}
public SqlGeometryProjectionSink(IGeometrySink110 p_Sink, int outSrid, Func <double, double, double[]> coordTransform)
{
_sink = p_Sink;
_outSrid = outSrid;
_coordTransform = coordTransform;
if (_coordTransform == null)
{
_coordTransform = new Func <double, double, double[]>((x, y) => new double[] { x, y });
}
}
public SqlGeometryProjectionSink(IGeometrySink110 p_Sink, int outSrid, Func<double, double, double[]> coordTransform)
{
_sink = p_Sink;
_outSrid = outSrid;
_coordTransform = coordTransform;
if (_coordTransform == null)
{
_coordTransform = new Func<double, double, double[]>((x, y) => new double[] { x, y });
}
}
/// <summary>
/// Selectively filter unwanted artifacts in input object:
/// - empty shapes (if [filterEmptyShapes] is true)
/// - points (if [filterPoints] is true)
/// - line strings shorter than provided tolerance (if lineString.STLength less than lineStringTolerance)
/// - polygon rings thinner than provided tolerance (if ring.STArea less than ring.STLength * ringTolerance)
/// - general behavior: Returned spatial objects will always to the simplest OGC construction
/// </summary>
/// <param name="geometry"></param>
/// <param name="filterEmptyShapes"></param>
/// <param name="filterPoints"></param>
/// <param name="lineStringTolerance"></param>
/// <param name="ringTolerance"></param>
/// <returns></returns>
public static SqlGeometry FilterArtifactsGeometry(SqlGeometry geometry, bool filterEmptyShapes, bool filterPoints, double lineStringTolerance, double ringTolerance)
{
if (geometry == null || geometry.IsNull)
{
return(geometry);
}
var geomBuilder = new SqlGeometryBuilder();
IGeometrySink110 filter = geomBuilder;
if (filterEmptyShapes)
{
filter = new GeometryEmptyShapeFilter(filter);
}
if (ringTolerance > 0)
{
filter = new GeometryThinRingFilter(filter, ringTolerance);
}
if (lineStringTolerance > 0)
{
filter = new GeometryShortLineStringFilter(filter, lineStringTolerance);
}
if (filterPoints)
{
filter = new GeometryPointFilter(filter);
}
geometry.Populate(filter);
geometry = geomBuilder.ConstructedGeometry;
if (geometry == null || geometry.IsNull || !geometry.STIsValid().Value)
{
return(geometry);
}
// Strip collections with single element
while (geometry.STNumGeometries().Value == 1 && geometry.InstanceOf("GEOMETRYCOLLECTION").Value)
{
geometry = geometry.STGeometryN(1);
}
return(geometry);
}
public VacuousGeographyToGeometrySink(int targetSrid, IGeometrySink110 target)
{
_target = target;
_targetSrid = targetSrid;
}
public void AddLine(IGeometrySink110 sink)
{
sink.AddLine(_x, _y, _z, _m);
}
public void BeginFigure(IGeometrySink110 sink)
{
sink.BeginFigure(_x, _y, _z, _m);
}
private readonly double _yShift; // How much to shift in the y direction.
// We take an amount to shift in the x and y directions, as well as a target sink, to which
// we will pipe our result.
public ShiftGeometrySink(double xShift, double yShift, IGeometrySink110 target)
{
_target = target;
_xShift = xShift;
_yShift = yShift;
}
public GeometryPointFilter(IGeometrySink110 sink)
{
_sink = sink;
}
public GeometryThinRingFilter(IGeometrySink110 sink, double tolerance)
{
_sink = sink;
_tolerance = tolerance;
}
public GeometryEmptyShapeFilter(IGeometrySink110 sink)
{
_sink = sink;
}
public GeometryShortLineStringFilter(IGeometrySink110 sink, double tolerance)
{
_sink = sink;
_tolerance = tolerance;
}
public GeometryTransformer(IGeometrySink110 sink, AffineTransform transform)
{
_sink = sink;
_transform = transform;
}
public Projector(SqlProjection projection, IGeometrySink110 sink)
{
_projection = projection;
_sink = sink;
}
