Location(s) Input By

Sets the manner in which the locations on the
surface are defined.
 Enter Data Point —
Interactively define a single location on the curve.
 Parameter — Using
the Parameter Value setting, the value, which must be in the range 0–1,
specifies the location from the domain to map to the displayed object. The
domain is from 0.0 to 1.0.
 Node Points — These
are the points on the curve calculated by evaluating it at the knots
parameters. Node points represent the joints between the Bézier segments of a
Bspline composed of Bézier segments separated by knots.
 Dist[ance] Along
Curve — Using the Dist From Start setting, you can extract an attribute at a
particular distance along the curve.
 (%) Dist[ance]
Along Curve — Using the Dist From Start(%) setting, the value is a percentage
of the total length of the curve. For example, to extract the tangent direction
of a curve at its middle point, set Dist. From Start(%) to 50 (for 50% of the
distance of the total curve length).
 Point Array — Using
the Number of Points setting, the value is the number of evenly spaced
locations on the curve. For example, to evaluate at 20 evenly spaced locations
on the curve, set Number of Points to 20.

Tangent Plot Scale

Sets the scale factor applied to the magnitude
display. If set to 1.0, the extracted tangent is the true derivative vector —
that is, the tangent direction with the magnitude.

Curvature Plot Scale

Sets the scale factor applied to the line segments
that represent curvature vectors in Curvature Plot output. If set to 1.0, the
true curvature vector is displayed. The curvature value is the length of this
vector. The radius of curvature is equal to one divided by the curvature. For a
straight line, the radius of curvature is infinity since its curvature is zero.

Perpendicular Circle Radius

Sets the radius of the perpendicular circles in
Perpendicular Circles output.

Parameter Value

(Location(s) Input By set to Parameter) Sets the
parameter value applicable to the Parameter option for defining locations on
the curve.

Dist[ance] From Start

(Location(s) Input By set to Dist Along Curve) Sets
the distance value applicable to the Dist Along Curve option for defining
locations on the curve.

Dist[ance] From Start(%)

(Location(s) Input By set to (%) Dist Along Curve)
Sets the distance value applicable to the (%) Dist Along Curve option for
defining locations on the curve.

Number of Points

(Location(s) Input By set to Point Array) Sets the
numeric value applicable to the Point Array option for defining locations on
the curve.

[Compute] Points

If on, the points on the curve at which evaluation is
performed are displayed in the output.

[Compute] Tangents

If on, the curve's tangents are computed.

[Compute] Curvature Plot

If on, the curve's curvature plot is computed.

[Compute] Inflection Points

If on, the curve's inflection points are computed.
Inflection points are where the curve changes concavity.

[Compute] Perpendicular Circles

If on, the curve's perpendicular circles are computed.
