Detailed explanation of the steps to implement Fibonacci spiral animation in p5.js

This time I will bring you a detailed explanation of the steps to implement Fibonacci spiral in p5.jsanimation, what are the notes to implement Fibonacci spiral animation in p5.js, The following is a practical case, let’s take a look.

The effect is as follows:

Main method

1. ##translate()

2. rotate()

3. arc()

##Fibonacci Spiral

The Fibonacci spiral is also called the "golden spiral". It is a spiral curve drawn based on the Fibonacci number sequence. Draw a 90-degree fan shape in a square with Fibonacci numbers as sides. The connected arcs are Fibonacci spiral.

Sketch

Process Decomposition

1. Define an empty Fibonacci

Array：

var Fibonacci = [];

2. Initialization

By default, the draw() function will repeat drawing infinitely, and the frameRate() function can be set The number of times a draw is repeated per second, like the number of frames per second a movie plays.

function setup(){
 createCanvas(windowWidth, windowHeight);//创建一块画板，画板的宽高与浏览器宽高相同
 background(255);//设置背景颜色为白色
 frameRate(10);//设置每秒10帧
}

3. Set the style of the Fibonacci spiral

function draw(){
 ...
 stroke(0);//线条颜色为黑色
 noFill();//无填充色
 strokeWeight(5);//线条宽度为5
 translate(windowWidth/2, windowHeight/2);//将坐标系移动到页面中央
 ...
}

4. Start drawing the Fibonacci spiral

function draw(){
 ...
 stroke(0);
 noFill();
 strokeWeight(5);
 translate(windowWidth/2, windowHeight/2);
 ...
 for( var i = 0; i 

5. Let the Fibonacci spiral move

function draw(){
 background(255);//将背景设置成白色，“遮盖”之前的绘图
 stroke(0);
 noFill();
 strokeWeight(5);
 translate(windowWidth/2, windowHeight/2);
 rotate(-PI / 6 * frameCount);//每帧旋转30度，frameCount表示当前已播放帧数
 for( var i = 0; i 

Complete code

var Fibonacci = [];
function setup(){
 createCanvas(windowWidth, windowHeight);
 background(255);
 frameRate(10);
}
function draw(){
 background(255);
 stroke(0);
 noFill();
 strokeWeight(5);
 translate(windowWidth/2, windowHeight/2);
 rotate(-PI / 6 * frameCount);
 for( var i = 0; i 

I believe you have mastered the method after reading the case in this article , for more exciting content, please pay attention to other related articles on the php Chinese website!

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