Polygon

Polygon class

A Polygon is a planar surface, defined by 1 exterior boundary and 0 or more interior boundaries.

public class Polygon : Surface, IPolygon

Constructors

Name Description
Polygon() Initializes a new instance of the Polygon class.
Polygon(ILinearRing) Initializes a new instance of the Polygon class.
Polygon(ILinearRing, IEnumerable<ILinearRing>) Initializes a new instance of the Polygon class.

Properties

Name Description
CoordinateDimension { get; } Gets the number of coordinate dimensions for this Geometry.
Dimension { get; } Gets the topological dimension of this Geometry.
ExteriorRing { get; set; } Gets the exterior ring.
override GeometryType { get; } Gets the type of the geometry.
virtual HasCurveGeometry { get; } Gets a value indicating whether this geometry is or contains curve (not linear) geometry.
override HasM { get; set; } Gets a value indicating whether this instance has M coordinate.
override HasZ { get; set; } Gets a value indicating whether this instance has Z coordinate.
InteriorRingsCount { get; } Gets the number of interior rings.
override IsEmpty { get; } Gets a value indicating whether this instance is empty.
IsSimple { get; } Gets a value indicating whether this instance is simple from SFA point of view.
IsValid { get; } Gets a value indicating whether this instance is valid.
override SpatialReferenceSystem { get; set; } Gets SpatialReferenceSystem of this instance. This property can be null, is SpatialReferenceSystem is unknown. Assigning new SpatialReferenceSystem will not perform any coordinate transformation, only reference will change.

Methods

Name Description
AddInteriorRing(ILinearRing) Adds an interior ring.
AsBinary() Translates this geometry to its Well-Known Binary representation.
AsBinary(WkbVariant) Translates this geometry to its Well-Known Binary representation.
AsText() Translates this geometry to its Well-Known Text representation.
AsText(WktVariant) Translates this geometry to its Well-Known Text representation.
AsText(WktVariant, NumericFormat) Translates this geometry to its Well-Known Text representation.
override Clone() Clones this instance.
CoveredBy(IGeometry) Determines whether this geometry is covered by a specified geometry.
Covers(IGeometry) Determines whether this geometry covers a specified geometry.
Crosses(IGeometry) Determines if this geometry and a specified geometry cross.
Difference(IGeometry) Subtracts a specified geometry from this geometry.
Disjoint(IGeometry) Determines if this geometry is disjoint from a specified geometry.
Equals(ICurvePolygon) Determines whether the specified object is equal to the current object.
Equals(IPolygon) Determines whether the specified object is equal to the current object.
override Equals(object) Determines whether the specified object is equal to the current object.
GetArea() Computes the area of this geometry.
GetBuffer(double, int) Computes a buffer region around this geometry.
GetCentroid() Computes the centroid of this geometry.
GetConvexHull() Computes the convex hull of this geometry.
GetDistanceTo(IGeometry) Computes the minimum distance between this geometry and a specified geometry.
GetExtent() Computes and returns a bounding extent of this geometry.
override GetHashCode() Serves as the default hash function.
GetInteriorRing(int) Gets the interior ring by its index.
GetLength() Computes the length of this geometry.
override GetPointOnSurface() Finds a point that is guaranteed to be on this polygon.
Intersection(IGeometry) Builds an intersection between this geometry and a specified geometry.
Intersects(Extent) Determines whether this geometry intersects a specified extent.
Intersects(IGeometry) Determines if this geometry and a specified geometry intersects.
Overlaps(IGeometry) Determines whether this geometry overlap with a specified geometry.
Relate(IGeometry, string) Determines if DE-9IM intersection matrix of this geometry and a specified geometry matches provided pattern.
ReplacePolygonsByLines() Gets polygons represented as lines of this geometry.
RoundM(int) Rounds M coordinate to a specified number of fractional digits.
RoundXY(int) Rounds X and Y coordinates to a specified number of fractional digits.
RoundZ(int) Rounds Z coordinate to a specified number of fractional digits.
override SetEmpty() Makes this Geometry empty.
SpatiallyContains(IGeometry) Determines whether this geometry spatially contains a specified geometry.
SpatiallyEquals(IGeometry) Determines if this geometry spatially equal to a specified geometry.
SymDifference(IGeometry) Builds a symmetric difference between this geometry and a specified geometry.
ToEditable() Gets an editable copy of this geometry. (3 methods)
ToEditable<T>() Gets an editable copy of this geometry.
ToLinearGeometry() Gets approximate or equivalent non-curve version of this geometry using the default tolerance. (2 methods)
ToLinearGeometry(double) Gets approximate or equivalent non-curve version of this geometry using the specified tolerance. (2 methods)
override ToString() Returns a string that represents the current object.
Touches(IGeometry) Determines if this geometry and a specified geometry touch.
Union(IGeometry) Unites this geometry and a specified geometry.
Within(Extent) Determines whether this geometry is within a specified extent.
Within(IGeometry) Determines whether this geometry is within a specified geometry.
operator == Implements the operator ==.
operator != Implements the operator !=.

See Also