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Path

Path Basics

Icon Name Description / Applications
AppendPointToPath

Appends a point to a path.

ClosePath

Adds the segment connecting the last point with the first one in a path.

CreateArcPath

Creates an open path containing cocircular, equidistant points.

CreateCirclePath

Creates a closed path containing cocircular, equidistant points.

CreateEllipsePath

Creates a closed path containing elliptical, equidistant points.

CreateRectanglePath

Creates a closed path containing four vertices of rectangle.

CreateSegmentPath

Creates an open path containing collinear, equidistant points.

GetPathCharacteristicPoint

Returns the selected characteristic point of a path.

GetPathCharacteristicPoint_Interpolated

Returns linear interpolation between two consecutive characteristic points of a path.

GetPathSegment

Returns the selected segment of a path.

GetPointOnPath

Returns a path point of desired distance (measured along path) from the first point of the path.

InsertToPath

Inserts a new point to a path at a specified location.

OpenPath

Removes the segment connecting the last point with the first one in a path.

RemovePointFromPath

Removes a point from a path.

SetPathCharacteristicPoint

Modifies the value of a selected characteristic point.

SkipEmptyPath

If the input path has at least one point, then it is copied to the output; otherwise Nil is returned.


Secures against domain errors caused by empty paths, e.g. just before the PathBoundingBox filter is to be invoked.

SkipNotPolygon

If the input path is closed and has no self-intersections, then it is copied to the output; otherwise Nil is returned.

Subpath

Creates an open path from a continuous subsequence of the input path's points.

Path Combinators

Icon Name Description / Applications
AveragePath

Computes the average of two paths (of equal size and type) point by point.

ConcatenatePaths

Joins up to four open paths.

ConcatenatePaths_OfArray

Joins open paths of an array.

ConcatenatePaths_OfLoop

Joins open paths appearing in consecutive iterations.

Path Features

Icon Name Description / Applications
PathArrayPoints

Converts an array of paths to an array of points.

PathBoundingBox

Computes the smallest box containing a path.

PathBoundingBox_OrNil

Computes the smallest box containing a path; returns NIL if the path is empty.

PathDiameter

Finds the longest segment connecting two characteristic points of a path.

PathEndpoints

Returns the two endpoints of a path.

PathLength

Computes the total length of the input path.

PathMassCenter

Computes the average of the path points (all, not only characteristic ones).

PathMassCenter_OrNil

Computes the average of the path points (all, not only characteristic ones); returns NIL if the path is empty.

PathSegments

Converts a path to an array of line segments.

PathSize

Returns the number of characteristic points on the input path.

Path IO

Icon Name Description / Applications
LoadPath

Loads serialized Path object from AVDATA file.

SavePath

Saves serialized Path object as AVDATA file.

Path Spatial Transforms

Icon Name Description / Applications
AlignPath

Moves a path from a local coordinate system to the absolute one.


Required when there is a path defined in a local coordinate system, but the next image-related filter in the program does not have any inAlignment input.

AlignPathArray

Moves an array of paths from a local coordinate system to the absolute one.


Required when there are paths defined in a local coordinate system, but the next image-related filter in the program does not have any inAlignment input.

RescalePath

Translates each point of a path proportionally to its distance to a reference point.

RescalePathArray

Translates each point of each path proportionally to its distance to a reference point.

ReversePath

Reverses the order of points in a path.

RotatePath

Rotates a path clockwise around a center point.

RotatePathArray

Rotates an array of paths clockwise around a center point.

TranslatePath

Translates a path by a vector.

TranslatePathArray

Translates an array of paths by a vector.

TransposePath

Flips and rotates a path so that x-coordinates are exchanged with y-coordinates.

Polygon Relations

Icon Name Description / Applications
TestPointInPolygon

Tests whether a point lies inside a polygon.