X → Arc Conversions

This topic provides a reference table for all automatic type conversions to arc, sorted by merit.

Direct Conversions

This section lists all direct conversions to the arc type. A 'Direct' conversion indicates a relation between very related types, such as integers and numbers, or 2D and 3D points. Though note that even these conversions can fail due to out-of-bounds issues, or be narrowing due to reduction.

From	Explanation
circle	Circled are converted to full arcs.

Fair Conversions

This section lists all fair conversions to the arc type. A 'Fair' conversion indicates the types involved are closesly related in a data layout sense, though not necessarily in a conceptual sense. For example booleans and integers, or points and vectors. Although these conversions may fail or narrow, it is nevertheless considered decent practice to rely upon them in algorithms.

From	Explanation
sphere	Extracts the equatorial circle of the sphere.

Plausible Conversions

This section lists all plausible conversions to the arc type. A 'Plausible' conversion indicates a non-straightforward, but a still reasonable conversion between two types that share a salient quality, or where one is an obvious sub-type of the other. For example curves and intervals, or points and planes. Any plausible conversion can also be achieved through the explicit use of standard components.

From	Explanation
angle	Creates a unit arc with the specified sweep angle.
curve	Creates an arc representation of the curve, or the spanning circle if the curve is not arc-shaped.
identifier	Extracts the arc of the referenced Rhino curve object.
plane	Creates a circular unit arc oriented on the plane.
point2	Creates a circular unit arc centered on the 2D point.
point3	Creates a circular unit arc centered on the point.
polyline	Creates the spanning circle containing the polyline.
rectangle	Creates the spanning circle containing the rectangle.
triangle	Creates the spanning circle containing the triangle.
tube	Extracts the circular arc from the tube base.
vector	Creates a full arc oriented perpendicular to the vector.

Strange Conversions

This section lists all strange conversions to the arc type. A 'Strange' conversion indicates a peculiar, but occasionally sensible, translation between types. However, it is equally likely that the conversion was not intended and thus represents a mistake in the algorithm design, which is why this conversion level is the default for showing conversion warnings in the Grasshopper interface. Examples in this category include the conversion between colours and booleans, or between circles and triangles. Any strange conversion can also be achieved through the explicit use of standard components.

From	Explanation
box	Creates the spanning circle of the box.
complex number	Creates a circular arc intersecting the complex number coordinate.
integer	Creates a circular arc with the integer as radius.
number	Creates a circular arc with the number as radius.