https://github.com/arlk/bezier.jl

Bezier curve evaluation and subdivision
https://github.com/arlk/bezier.jl

bezier evaluation julia subdivision

Last synced: about 1 year ago
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Bezier curve evaluation and subdivision

• Host: GitHub
• URL: https://github.com/arlk/bezier.jl
• Owner: arlk
• License: other
• Created: 2018-03-02T03:31:49.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2018-03-02T21:03:35.000Z (over 8 years ago)
• Last Synced: 2025-02-02T14:47:17.279Z (over 1 year ago)
• Topics: bezier, evaluation, julia, subdivision
• Language: Julia
• Homepage:
• Size: 6.84 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

          
# Bezier

[![Build Status](https://travis-ci.org/arlk/Bezier.jl.svg?branch=master)](https://travis-ci.org/arlk/Bezier.jl) [![codecov](https://codecov.io/gh/arlk/Bezier.jl/branch/master/graph/badge.svg)](https://codecov.io/gh/arlk/Bezier.jl)

This package provides evaluation and subdivision algorithms for arbitary order Bezier curves.

## Usage

Evaluate curve at `0.5`:

```julia-repl

julia> pts = [0.0 1.0 2.0 3.0; 0.0 -1.0 2.0 0.0];

julia> evalbezier(pts, 0.5)

2-element Array{Float64,1}:

  1.5

  0.375

```

*Note*: You can perform evaluations much faster if you use [StaticArrays.jl](https://github.com/JuliaArrays/StaticArrays.jl)

Evaluate curve at `0.1:0.01:1.0`:

```julia-repl

julia> evalbezier(pts, 0.1:0.01:1.0)

2×91 Array{Float64,2}:

  0.3     0.33       0.36       0.39       0.42      …  2.88      2.91      2.94      2.97      3.0

 -0.189  -0.196779  -0.202752  -0.206973  -0.209496     0.216576  0.166743  0.114072  0.058509  0.0

```

Subdivide curve at `0.5`:

```julia-repl

julia> β₁, β₂ = subdivide(pts, 0.5)

([0.0 0.5 1.0 1.5; 0.0 -0.5 0.0 0.375], [1.5 2.0 2.5 3.0; 0.375 0.75 1.0 0.0])

```