Draw Bezier Curve with HTML5 Canvas

Javascript Web Development Front End Scripts

Yes, use HTML canvas bezierCurveTo() Method to draw a Bezier curve in HTML5.

Example

You can try to run the following code to draw Bezier curve with canvas:

<!DOCTYPE HTML>
<html>
   <head>
      <style>
         #test {
            width: 100px;
            height:100px;
            margin: 0px auto;
         }
      </style>
      <script>
         function drawShape(){

            // get the canvas element using the DOM
            var canvas = document.getElementById('mycanvas');

            // Make sure we don't execute when canvas isn't supported
            if (canvas.getContext){

               // use getContext to use the canvas for drawing
               var ctx = canvas.getContext('2d');
               ctx.beginPath();
               ctx.moveTo(75,40);
               ctx.bezierCurveTo(75,37,70,25,50,25);
               ctx.bezierCurveTo(20,25,20,62.5,20,62.5);
               ctx.bezierCurveTo(20,80,40,102,75,120);
               ctx.bezierCurveTo(110,102,130,80,130,62.5);
               ctx.bezierCurveTo(130,62.5,130,25,100,25);
               ctx.bezierCurveTo(85,25,75,37,75,40);
               ctx.fill();
            } else {
               alert('You need Safari or Firefox 1.5+ to see this demo.');
            }
         }
      </script>
   </head>
   <body id = "test" onload = "drawShape();">
      <canvas id = "mycanvas"></canvas>
   </body>
</html>

Samual Sam

Published on 10-Apr-2018 07:56:56

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