CatmullRom

vsvg

Struct CatmullRom 

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pub struct CatmullRom { /* private fields */ }
Expand description

A Catmull-Rom spline.

This is a curve that passes through all the points in the list, but is smooth. It is converted to a series of cubic Bézier curves.

A minimum of 3 control points are needed to create a curve. If less than 3 points are provided, an empty path is returned.

Strictly speaking, a Catmull-Rom spline starts at the second point and ends at the second to last. This implementation duplicates the first and last points instead, so that all points are traversed by the curve.

The Catmull-Rom spline is parameterized by a tension parameter. A tension of 1.0 is the default. Higher values will make the curve more “tight” (closer to a polyline), while lower values will make it more “loose”. Values bellow ~0.2 yield very loose curves that can extend far away from the control points. Negative values makes the curve pass backwards through control points.

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impl CatmullRom

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pub fn from_points(points: impl IntoIterator<Item = impl Into<Point>>) -> Self

Create a new Catmull-Rom spline from a list of points.

The tension parameter is set to 1.0.

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pub fn tension(self, tension: f64) -> Self

Set the tension parameter.

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pub fn points(&self) -> &[Point]

Get the control points.

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pub fn push_point(&mut self, point: impl Into<Point>)

Add a control point.

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impl Clone for CatmullRom

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fn clone(&self) -> CatmullRom

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for CatmullRom

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for CatmullRom

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl IntoBezPathTolerance for CatmullRom

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fn into_bezpath_with_tolerance(self, _tolerance: f64) -> BezPath

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fn into_bezpath(self) -> BezPath

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