ArcGIS Pro 3.3 API Reference Guide
ArcGIS.Core.Geometry Namespace / GeometryEngine Class
Properties Methods


In This Topic
    GeometryEngine Class Members
    In This Topic

    The following tables list the members exposed by GeometryEngine.

    Public Properties
     NameDescription
    Public Propertystatic (Shared in Visual Basic) Gets the GeometryEngine instance.  
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    Public Methods
     NameDescription
    Public Method Produces a copy of the given geometry that is an accelerated geometry used to speed up relational operations. Only polyline and polygon geometries can be accelerated. If the geometry cannot be accelerated, the method returns the same input geometry.  
    Public MethodGets the area of the geometry. This is a planar measurement using 2D Cartesian mathematics to compute the area.  
    Public MethodConstructs a polygon that fills in the gaps between the existing polygon and polyline.  
    Public MethodCalculates the boundary of the input geometry.  
    Public MethodOverloaded.   
    Public Method Calculates M attribute values for each non-simple (NaN) M-value from existing simple (non-NaN) M attributes on the specified geometry. The non-simple M-values are obtained by extrapolation/interpolation for polylines and interpolation for polygons.  
    Public Method Calculates Z attribute values for each non-simple (NaN) Z-value from existing simple (non-NaN) Z attributes on the specified geometry. The non-simple Z values are obtained by extrapolation/interpolation for polylines and interpolation for polygons.  
    Public Method Calibrates M-values using M-values of input points.  
    Public Method Calibrates M-values using M-values of input points.  
    Public MethodCenter the envelope at the specified X and Y coordinates.  
    Public MethodGets the centroid (center of gravity) of the geometry.  
    Public MethodConstructs the polygon created by clipping geometry by envelope.  
    Public MethodConstructs a geodetic line with the specified length and azimuth.  
    Public MethodConstructs a geodetic line connecting the specified points.  
    Public MethodCreates a multipatch from the input polygon or polyline.  
    Public MethodCreates a multipatch from the input polygon or polyline.  
    Public MethodCreates a multipatch from the input polygon or polyline.  
    Public MethodCreates a multipatch from the input polygon or polyline.  
    Public MethodCreates a multipatch from the input polygon or polyline.  
    Public Method Constructs a point at a specified angle from the horizontal axis and a specified distance away from the input point.  
    Public MethodGenerates polygons from a set of polylines.  
    Public MethodReturns true if geometry1 contains geometry2.  
    Public MethodConstructs the convex hull of the geometry.  
    Public MethodReturns true if geometry1 crosses geometry2.  
    Public MethodSplits this geometry into parts. A polyline will be split into two parts at most.  
    Public MethodDensifies the specified geometry.  
    Public MethodDensifies the specified geometry.  
    Public MethodDensifies the specified geometry.  
    Public MethodDensifies the specified geometry.  
    Public Method Performs the topological difference operation on the two geometries.  
    Public MethodReturns true if geometry1 and geometry2 are disjoint.  
    Public MethodReturns true if geometry1 and geometry2 are disjoint in a 3-dimensional manner.  
    Public MethodMeasures the planar distance between two geometries.  
    Public MethodMeasures the 3-dimensional planar distance between two geometries.  
    Public Method Sets all the M-values to NaN.  
    Public MethodOverloaded.   
    Public MethodOverloaded.   
    Public MethodOverloaded.   
    Public MethodWrites a JSON version of the input geometry to a string.  
    Public MethodOverloaded.   
    Public MethodWrites an OGC well-known text formatted version of the input geometry to a string.  
    Public Method Performs the extend operation on a polyline using a polyline as the extender. The output polyline will have the first and last segment of each part extended to the extender if the segments can be interpolated to intersect the extender. In the case that the segments can be extended to multiple segments of the extender, the shortest extension is chosen. Only end points for parts that are not shared by the end points of other parts will be extended. If the polyline cannot be extended by the input extender, then a null will be returned.  
    Public Method Extrapolates the M-values based on the extrapolate range defined by the input indices.  
    Public MethodPerforms the generalize operation on the geometry.  
    Public MethodPerforms the generalize operation on the geometry.  
    Public MethodOverloaded.   
    Public MethodOverloaded.   
    Public MethodOverloaded.   
    Public Method The function returns a piecewise approximation of a geodesic ellipse (or geodesic circle, if semiAxis1Length = semiAxis2Length). Constructs a geodesic ellipse centered on the specified point. If this method is used to generate a polygon or a polyline, the result may have more than one part, depending on the size of the ellipse and its position relative to the horizon of the coordinate system. When the method generates a polyline or a multipoint, the result vertices lie on the boundary of the ellipse. When a polygon is generated, the interior of the polygon is the interior of the ellipse, however the boundary of the polygon may contain segments from the spatial reference horizon, or from the GCS extent.  
    Public MethodOverloaded.   
    Public Method The function returns a piecewise approximation of a geodesic ellipse (or geodesic circle, if SemiAxis1Length = SemiAxis2Length). Constructs a geodesic ellipse centered on the specified point. If this method is used to generate a polygon or a polyline, the result may have more than one part, depending on the size of the sector and its position relative to the horizon of the coordinate system. When the method generates a polyline or a multipoint, the result vertices lie on the boundary of the ellipse. When a polygon is generated, the interior of the polygon is the interior of the sector, however the boundary of the polygon may contain segments from the spatial reference horizon, or from the GCS extent.  
    Public MethodCreates geodetic segments connecting existing vertices and densifies the segments.  
    Public MethodCreates geodetic segments connecting existing vertices and densifies the segments.  
    Public MethodOverloaded.   
    Public Method Moves each point in the input array by the given distance. The function returns the number of points that has been moved. Points that are outside of the horizon will be discarded.  
    Public Method Gets a list of distances along the multipart at points with the specified M-value.  
    Public MethodReturns the size of the buffer in bytes that will be required to hold the Esri shapefile version of the input geometry.  
    Public Method Gets the minimum and maximum M-value.  
    Public Method Determines whether Ms are monotonic, and if so, whether they are ascending or descending.  
    Public MethodGets a combination of Monotonicity values that describes all trends in the M-values over the length of the multipart.  
    Public Method Get the M-values at the specified distance along the multipart. Two M-values can be returned if the specified distance is exactly at the beginning or the ending of a part.  
    Public MethodIndicates whether this geometry is topologically correct.  
    Public Method Gets the line segments corresponding to the normal at the locations along the geometry where the specified M occurs.  
    Public Method Gets a multipoint corresponding to the locations along the multipart where the specified M-value occurs. Coordinates/measures are interpolated when appropriate.  
    Public MethodGets the list of predefined coordinate systems for the given filter.  
    Public MethodGets the list of predefined geographic transformations.  
    Public MethodGets the subcurve of the input multipart between fromDistance and toDistance.  
    Public MethodGets the 3D subcurve of the input multipart between fromDistance and toDistance.  
    Public MethodGets a polyline corresponding to the subcurve(s) between the specified M-values.  
    Public Method Gets a polyline and other details corresponding to the subcurve(s) between the specified M-values.  
    Public MethodReturns the size of the buffer in bytes that will be required to hold the OGC well-known binary version of the input geometry.  
    Public MethodOverloaded.   
    Public MethodCreates a geometry based on the contents of the input Esri shapefile formatted buffer.  
    Public MethodCreates a geometry from the input JSON string.  
    Public MethodCreates a geometry based on the contents of the input well-known binary buffer.  
    Public MethodCreates a geometry from the input well-known text string.  
    Public Method Sets the M-value at the given distance along the multipart.  
    Public Method Generates M-values by linear interpolation over a range of points.  
    Public MethodOverloaded.   
    Public MethodReturns true if geometry1 and geometry2 intersect.  
    Public Method Determines if all the M-values are numbers.  
    Public MethodIndicates whether this geometry is known to be topologically consistent according to the geometry type for storage in a database.  
    Public Method Indicates if the given geometry is topologically consistent according to the Open Geospatial Consortium (OGC) validation specification.  
    Public MethodPerforms the LabelPoint operation on the geometry.  
    Public MethodGets the length for a specified geometry. This is a planar measurement using 2D Cartesian mathematics.  
    Public MethodGets the 3D length for a specified geometry.  
    Public MethodOverloaded.   
    Public MethodConstructs a point the specified distance along a polyline or polygon.  
    Public Method Separates the components of a geometry into single component geometries.  
    Public Method Multiplies all the M-values by a factor.  
    Public MethodFinds the nearest point in the geometry to a specified point.  
    Public MethodFinds the nearest point, in 3D space, on a Z-Aware geometry to a specified point.  
    Public MethodFinds the nearest vertex in the geometry to a specified point.  
    Public MethodFolds the geometry into a range of 360 degrees. This may be necessary when wrap around is enabled on the map. If geometry is an Envelope then a Polygon will be returned unless the Envelope is empty in which case an empty Envelope will be returned.  
    Public Method Constructs the offset version of the input geometry. The offset operation creates a geometry that is a constant distance from an input polyline or polygon. It is similar to buffering, but produces a one sided result. If offset distance > 0, then the offset geometry is constructed to the right of the oriented input geometry, otherwise it is constructed to the left. For a simple polygon, the orientation of outer rings is clockwise and for inner rings it is counter clockwise. So the "right side" of a simple polygon is always its inside. The bevelRatio is multiplied by the offset distance and the result determines how far a mitered offset intersection can be from the input curve before it is beveled.  
    Public Method Adds an offset value to each of the M-values.  
    Public Method Reorients the polyline such that all M-values are non-decreasing, if possible.  
    Public MethodReturns true if geometry1 and geometry2 overlap.  
    Public Method Projects the given geometry to a new spatial reference. Same as GeometryEngine.ProjectEx(geometry, ProjectionTransformation.Create(geometry.SpatialReference, outputSpatialReference)); or, if both spatial references have vertical coordinate systems same as GeometryEngine.ProjectEx(geometry, ProjectionTransformation.CreateWithVertical(geometry.SpatialReference, outputSpatialReference));  
    Public MethodProjects the given geometry to a new spatial reference.  
    Public Method Gets the first and last defined M-values in the polyline.  
    Public MethodOverloaded.   
    Public MethodOverloaded.   
    Public MethodOverloaded.   
    Public MethodOverloaded.   
    Public MethodOverloaded.   
    Public Method Reflects the input geometry about the given line.  
    Public MethodPerforms custom relational operations between two geometries using a Dimensionally Extended Nine-Intersection Model, DE-9IM, formatted string.  
    Public MethodReplaces each non-simple (NaN) Z-value on the geometry with the specified Z-value. All other simple (non-NaN) Z-values are unchanged.  
    Public MethodReshapes a polygon or polyline with a single path polyline.  
    Public Method Reverses the order of the M-values along the multipart.  
    Public MethodReverse the orientation of the geometry.  
    Public MethodRotates the geometry about the specified origin point.  
    Public MethodOverloaded.   
    Public Method Sets the Ms at the beginning and the end of the geometry and interpolates the M-values between these values.  
    Public MethodReplaces each Z value on the geometry with the specified Z-value.  
    Public MethodOverloaded.   
    Public MethodOverloaded.   
    Public MethodOverloaded.   
    Public MethodOverloaded.   
    Public Method Simplifies the given geometry to make it topologically consistent according to the geometry type for storage in a database. For instance, it rectifies polygons that may be self-intersecting.  
    Public Method Simplifies the given geometry according to the Open Geospatial Consortium (OGC) validation specification.  
    Public MethodUse either planar, nonplanar, or network simplify regardless of polyline M-awareness.  
    Public MethodSlices a polygon into a set of equal area parts.  
    Public Method Snaps the M-values to the M-precision (1 / MScale) of the spatial reference associated with the input geometry.  
    Public MethodAdds a new vertex along the multipoint at the specified input point or the projection onto the multipart of the specified input point.  
    Public Method Performs the symmetric difference operation on the two geometries. The symmetric difference is the union of the geometries minus the intersection.  
    Public MethodReturns true if geometry1 touches geometry2.  
    Public Method Transforms an enumeration of 2D coordinates. Returns an enumeration of transformed 2D coordinates.  
    Public Method Transforms an enumeration of 3D coordinates. Returns an enumeration of transformed 3D coordinates.  
    Public MethodOverloaded.   
    Public Method Updates M-values on all vertices as scaled and offset distances based on existing M-values.  
    Public Method Updates M-values along the shortest path between the specified vertices. The interpolation ratio is determined by the input M-values and Euclidean distance along that path.  
    Public Method Updates M-values along the shortest path between the specified vertices. The interpolation ratio is determined by the existing M-values along that path and the input M-values.  
    Public MethodReturns true if geometry1 is within geometry2.  
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    See Also