JavaScript+canvas realizes the seven-color board effect example_javascript skills

The example in this article describes how JavaScript+canvas achieves the seven-color board effect. Share it with everyone for your reference, the details are as follows:

The rendering is as follows:

html:

<canvas id="canvas" class="canvas" width="600" height="600"></canvas>

css:

html,body{margin: 0;padding: 0}
.canvas{display: block; margin-left:auto;margin-right:auto;margin-top: 50px;}

javascript:

var disk = [
    {
      area:[{x:0,y:0},{x:600,y:0},{x:300,y:300}],
      color:"#CBF263"
    },
    {
      area:[{x:0,y:0},{x:0,y:600},{x:300,y:300}],
      color:"#5CB6D0"
    },
    {
      area:[{x:0,y:600},{x:300,y:600},{x:150,y:450}],
      color:"#FE9CCD"
    },
    {
      area:[{x:150,y:450},{x:300,y:300},{x:450,y:450},{x:300,y:600}],
      color:"#A696C3"
    },
    {
      area:[{x:300,y:600},{x:600,y:600},{x:600,y:300}],
      color:"#FBC421"
    },
    {
      area:[{x:600,y:300},{x:600,y:0},{x:450,y:150},{x:450,y:450}],
      color:"#FF5061"
    },
    {
      area:[{x:450,y:450},{x:450,y:150},{x:300,y:300}],
      color:"#FDEA11"
    }
]
window.onload = function(){
    var canvasDom = document.getElementById("canvas");
    var ctx = canvasDom.getContext("2d");
    drawDisk(disk,ctx)
}
function drawDisk(disk,ctx){
    for(var i = 0;i<disk.length;i++){
      ctx.beginPath();
      ctx.moveTo(disk[i].area[0].x,disk[i].area[0].y);
      for(var j = 1;j<disk[i]["area"].length;j++){
        ctx.lineTo(disk[i].area[j].x,disk[i].area[j].y);
      }
      ctx.closePath();
      ctx.fillStyle = disk[i]["color"];
      ctx.fill();
    }
}

Readers who are interested in more JavaScript-related content can check out the special topics on this site: "Summary of JavaScript animation special effects and techniques", "Summary of JavaScript expansion techniques", "Summary of JavaScript motion effects and techniques", "Summary of JavaScript mathematical operation usage" and "Javascript object-oriented introductory tutorial"

I hope this article will be helpful to everyone in JavaScript programming.