Description:

Gets a polyline approximation of a curve.

Syntax:
public PolylineCurve ToPolyline(
double tolerance,
double angleTolerance,
double minimumLength,
double maximumLength
)
Parameters:
  • tolerance
  • Type: double
  • The tolerance. This is the maximum deviation from line midpoints to the curve. When in doubt, use the document's model space absolute tolerance.
  • angleTolerance
  • Type: double
  • The angle tolerance in radians. This is the maximum deviation of the line directions. When in doubt, use the document's model space angle tolerance.
  • minimumLength
  • Type: double
  • The minimum segment length.
  • maximumLength
  • Type: double
  • The maximum segment length.
Returns:
Type: PolylineCurve
PolyCurve on success, None on error.
Available since:
6.0
Description:

Gets a polyline approximation of a curve.

Syntax:
public PolylineCurve ToPolyline(
int mainSegmentCount,
int subSegmentCount,
double maxAngleRadians,
double maxChordLengthRatio,
double maxAspectRatio,
double tolerance,
double minEdgeLength,
double maxEdgeLength,
bool keepStartPoint,
Interval curveDomain
)
Parameters:
  • mainSegmentCount
  • Type: int
  • If mainSegmentCount <= 0, then both subSegmentCount and mainSegmentCount are ignored. If mainSegmentCount > 0, then subSegmentCount must be >= 1. In this case the NURBS will be broken into mainSegmentCount equally spaced chords. If needed, each of these chords can be split into as many subSegmentCount sub-parts if the subdivision is necessary for the mesh to meet the other meshing constraints. In particular, if subSegmentCount = 0, then the curve is broken into mainSegmentCount pieces and no further testing is performed.
  • subSegmentCount
  • Type: int
  • An amount of subsegments.
  • maxAngleRadians
  • Type: double
  • ( 0 to pi ) Maximum angle (in radians) between unit tangents at adjacent vertices.
  • maxChordLengthRatio
  • Type: double
  • Maximum permitted value of (distance chord midpoint to curve) / (length of chord).
  • maxAspectRatio
  • Type: double
  • If maxAspectRatio < 1.0, the parameter is ignored. If 1 <= maxAspectRatio < sqrt(2), it is treated as if maxAspectRatio = sqrt(2). This parameter controls the maximum permitted value of (length of longest chord) / (length of shortest chord).
  • tolerance
  • Type: double
  • If tolerance = 0, the parameter is ignored. This parameter controls the maximum permitted value of the distance from the curve to the polyline.
  • minEdgeLength
  • Type: double
  • The minimum permitted edge length.
  • maxEdgeLength
  • Type: double
  • If maxEdgeLength = 0, the parameter is ignored. This parameter controls the maximum permitted edge length.
  • keepStartPoint
  • Type: bool
  • If True the starting point of the curve is added to the polyline. If False the starting point of the curve is not added to the polyline.
  • curveDomain
  • Type: Interval
  • This sub-domain of the NURBS curve is approximated.
Returns:
Type: PolylineCurve
PolylineCurve on success, None on error.
Available since:
5.0
Description:

Gets a polyline approximation of a curve.

Syntax:
public PolylineCurve ToPolyline(
int mainSegmentCount,
int subSegmentCount,
double maxAngleRadians,
double maxChordLengthRatio,
double maxAspectRatio,
double tolerance,
double minEdgeLength,
double maxEdgeLength,
bool keepStartPoint
)
Parameters:
  • mainSegmentCount
  • Type: int
  • If mainSegmentCount <= 0, then both subSegmentCount and mainSegmentCount are ignored. If mainSegmentCount > 0, then subSegmentCount must be >= 1. In this case the NURBS will be broken into mainSegmentCount equally spaced chords. If needed, each of these chords can be split into as many subSegmentCount sub-parts if the subdivision is necessary for the mesh to meet the other meshing constraints. In particular, if subSegmentCount = 0, then the curve is broken into mainSegmentCount pieces and no further testing is performed.
  • subSegmentCount
  • Type: int
  • An amount of subsegments.
  • maxAngleRadians
  • Type: double
  • ( 0 to pi ) Maximum angle (in radians) between unit tangents at adjacent vertices.
  • maxChordLengthRatio
  • Type: double
  • Maximum permitted value of (distance chord midpoint to curve) / (length of chord).
  • maxAspectRatio
  • Type: double
  • If maxAspectRatio < 1.0, the parameter is ignored. If 1 <= maxAspectRatio < sqrt(2), it is treated as if maxAspectRatio = sqrt(2). This parameter controls the maximum permitted value of (length of longest chord) / (length of shortest chord).
  • tolerance
  • Type: double
  • If tolerance = 0, the parameter is ignored. This parameter controls the maximum permitted value of the distance from the curve to the polyline.
  • minEdgeLength
  • Type: double
  • The minimum permitted edge length.
  • maxEdgeLength
  • Type: double
  • If maxEdgeLength = 0, the parameter is ignored. This parameter controls the maximum permitted edge length.
  • keepStartPoint
  • Type: bool
  • If True the starting point of the curve is added to the polyline. If False the starting point of the curve is not added to the polyline.
Returns:
Type: PolylineCurve
PolylineCurve on success, None on error.
Available since:
5.0
/
Rhino.Geometry
/
Curve
/
ToPolyline

ToPolyline method

Class:  Rhino.Geometry.Curve

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