#curve #bezier #graphics

cubic-bezier

Create and modify cubic bezier curves

1 stable release

1.0.0 Feb 7, 2024

#162 in Visualization

Custom license

19KB
265 lines

cubic-bezier

This crate provides functionality for working with cubic Bezier curves, such as creating, manipulating, and calculating points along cubic Bezier curves.

Features

  • Create cubic Bezier curves with control handles.
  • Manipulate curves by adding, removing, or modifying control handles.
  • Add control handles without modifying the curve.
  • Calculate points along the curve with customizable detail.
  • Caches calculated points.

Example

use cubic_bezier::{point, Bezier, Handle};

let mut bezier = Bezier::new(10, 2);
bezier.push(Handle::mirrored(point!(-1.0, 1.0), point!(0.0, 0.0)));
bezier.push(Handle::mirrored(point!(1.0, 1.0), point!(2.0, 0.0)));

let points = bezier.calculate();

Usage

Creating a new Bezier curve is done with the new method. You specify the level of detail and an estimation of the number of handles that will be added.

let mut bezier = Bezier::new(10, 2);

After creating the curve, you can add control handles using the push method.

bezier.push(Handle::mirrored(point!(-1.0, 1.0), point!(0.0, 0.0)));
bezier.push(Handle::mirrored(point!(1.0, 1.0), point!(2.0, 0.0)));

To calculate points along the curve, call the calculate method.

let points = bezier.calculate();

This will return a vector of points representing the curve.

Inserting a Handle

You can insert a handle without changing the appearance of the curve using the knot_insert method.

bezier.knot_insert(0.5);

Debugging

You can access all control points for debugging purposes using the all_part_point method.

let control_points = bezier.all_part_point();

License

This library is licensed under the MIT license. See the LICENSE file for details.

Dependencies

~490KB