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Provides access to members that identify and add behavior to a polyline object. Note: the IPolyline interface has been superseded by IPolyline5. Please consider using the more recent version.
A polyline is a collection of one or many paths. The paths do not have to be connected to each other. A polyline can be defined either as a PointCollection, SegmentCollection, or GeometryCollection. Each collection type allows the user to access and manipulate different aspects of the polyline geometry.
Name | Description | |
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Densify | Converts this polycurve into a piecewise linear approximation of itself. | |
Dimension | The topological dimension of this geometry. | |
Envelope | Creates a copy of this geometry's envelope and returns it. | |
FromPoint | The 'from' point of the curve. | |
Generalize | Generalizes this polycurve using the Douglas-Peucker algorithm. | |
GeometryType | The type of this geometry. | |
GeoNormalize | Shifts longitudes, if need be, into a continuous range of 360 degrees. | |
GeoNormalizeFromLongitude | Normalizes longitudes into a continuous range containing the longitude. This method is obsolete. | |
GetSubcurve | Extracts a portion of this curve into a new curve. | |
IsClosed | Indicates if 'from' and 'to' points (of each part) are identical. | |
IsEmpty | Indicates whether this geometry contains any points. | |
Length | The length of the curve. | |
Project | Projects this geometry into a new spatial reference. | |
QueryEnvelope | Copies this geometry's envelope properties into the specified envelope. | |
QueryFromPoint | Copies this curve's 'from' point to the input point. | |
QueryNormal | Constructs a line normal to a curve from a point at a specified distance along the curve. | |
QueryPoint | Copies to outPoint the properties of a point on the curve at a specified distance from the beginning of the curve. | |
QueryPointAndDistance | Finds the point on the curve closest to inPoint, then copies that point to outPoint; optionally calculates related items. | |
QueryTangent | Constructs a line tangent to a curve from a point at a specified distance along the curve. | |
QueryToPoint | Copies the curve's 'to' point into the input point. | |
Reshape | Modifies this polyline by replacing some of its segments with some segments from reshapeSource. | |
ReverseOrientation | Reverses the parameterization of the curve ('from' point becomes 'to' point, first segment becomes last segment, etc). | |
SetEmpty | Removes all points from this geometry. | |
SimplifyNetwork | Removes zero length segments (zero in 2 dimensions), merges parts at endpoints that only connect to each other, reorients segments that are pointing against the prevailing orientation for a part. | |
Smooth | Converts this curve into a smooth curve containing only Bezier curve segments. | |
SnapToSpatialReference | Moves points of this geometry so that they can be represented in the precision of the geometry's associated spatial reference system. | |
SpatialReference | The spatial reference associated with this geometry. | |
SplitAtDistance | Introduces a new vertex into this polyline at a specified distance from the beginning of the polyline. | |
SplitAtPoint | Introduces a new vertex into this polyline at the location on it closest to the input point. | |
ToPoint | The 'to' point of the curve. | |
Weed | Generalizes using a small tolerance based upon either the system units of the geometry's spatial reference, or the geometry's bounding box. |
Interfaces | Description |
---|---|
IPolycurve | Provides access to members that define operations common to polylines and the boundaries of polygons. |
ICurve | Provides access to properties and methods of all 1 dimensional curves (polylines, segments, boundaries of polygons, etc.). |
IGeometry | Provides access to members that describe properties and behavior of all geometric objects. |
Classes | Description |
---|---|
Polyline | An ordered collection of paths; optionally has measure, height and ID attributes. |
To define a polyline containing many disjoint paths, the polyline must be defined as a GeometryCollection to which preconstructed path geometries are added. Adding segments to a polyline defined as a SegmentCollection, or points to a polyline defined as a PointCollection, assumes that the polyline is a single path of connected segments.
IGeometry Interface | IPolycurve Interface | IPath Interface | ISegmentCollection Interface | IGeometryCollection Interface | IPointCollection Interface | IConstructCurve Interface