HTML <canvas> Tag

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Draw Image in Canvas using HTML

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<!DOCTYPE html>
<html>
<body>

<table width="100%" border="0">
<tr>
<td valign="top">
<p>Image to use:</p>
<img id="scream" src="/media/StaffImages/579095286.jpg" alt="The Scream" width="220" height="277">
</td>
<td valign="top">
<p>Canvas to fill:</p>
<canvas id="myCanvas" width="250" height="300" style="border:1px solid #d3d3d3;">
Your browser does not support the HTML canvas tag.</canvas>
<p><button onclick="myCanvas()">Try it</button></p>
</td>
</tr>
</table>

<script>
function myCanvas() {
  var c = document.getElementById("myCanvas");
  var ctx = c.getContext("2d");
  var img = document.getElementById("scream");
  ctx.drawImage(img,10,10);
}
</script>

</body>
</html>

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#HTML #image #canvas #draw

Draw Circular Gradient in Canvas

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<!DOCTYPE html>
<html>
<body>

<canvas id="myCanvas" width="200" height="100" style="border:1px solid #d3d3d3;">
Your browser does not support the HTML canvas tag.</canvas>

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");

// Create gradient
var grd = ctx.createRadialGradient(75,50,5,90,60,100);
grd.addColorStop(0,"red");
grd.addColorStop(1,"white");

// Fill with gradient
ctx.fillStyle = grd;
ctx.fillRect(10,10,150,80);
</script>

</body>
</html>

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#HTML #canvas #Draw Circular Gradient

Draw Linear Gradient in Canvas

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<!DOCTYPE html>
<html>
<body>

<canvas id="myCanvas" width="200" height="100" style="border:1px solid #d3d3d3;">
Your browser does not support the HTML canvas tag.</canvas>

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
// Create gradient
var grd = ctx.createLinearGradient(0,0,200,0);
grd.addColorStop(0,"red");
grd.addColorStop(1,"white");
// Fill with gradient
ctx.fillStyle = grd;
ctx.fillRect(10,10,150,80);
</script>

</body>
</html>

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#HTML #canvas #Draw Linear Gradient

Canvas with Stroke Text

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<!DOCTYPE html>
<html>
<body>

<canvas id="myCanvas" width="300" height="100" style="border:1px solid #d3d3d3;">
Your browser does not support the HTML canvas tag.</canvas>

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
ctx.font = "30px Arial";
ctx.strokeText("GSSS KHOKHAR",10,50);
</script>

</body>
</html>

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#HTML #canvas #Stroke

Canvas with a text

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<!DOCTYPE html>
<html>
<body>

<canvas id="myCanvas" width="300" height="100" style="border:1px solid #d3d3d3;">
Your browser does not support the HTML canvas tag.</canvas>

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
ctx.font = "30px Arial";
ctx.fillText("GSSS KHOKHAR",10,50);
</script>

</body>
</html>

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#HTML #text #canvas

Draw a Circle using HTML Canvas with JavaScript

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<!DOCTYPE html>
<html>
<body>

<canvas id="myCanvas" width="200" height="100" style="border:1px solid #d3d3d3;">
Your browser does not support the HTML canvas tag.</canvas>

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
ctx.beginPath();
ctx.arc(95,50,40,0,2*Math.PI);
ctx.stroke();
</script> 

</body>
</html>

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#HTML #circle #form #canvas

Draw a Line using HTML Canvas with JavaScript

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After creating the rectangular canvas area, you must add a JavaScript to do the drawing.

Here are some examples:

<!DOCTYPE html>
<html>
<body>

<canvas id="myCanvas" width="200" height="100" style="border:1px solid #d3d3d3;">
Your browser does not support the HTML canvas tag.</canvas>

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
ctx.moveTo(0,0);
ctx.lineTo(200,100);
ctx.stroke();
</script>

</body>
</html>

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#HTML #canvas #drawline

Empty Canvas

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The HTML <canvas> element is used to draw graphics on a web page.

The graphic to the left is created with <canvas>. It shows four elements: a red rectangle, a gradient rectangle, a multicolor rectangle, and a multicolor text.

What is HTML Canvas?

The HTML <canvas> element is used to draw graphics, on the fly, via JavaScript.

The <canvas> element is only a container for graphics. You must use JavaScript to actually draw the graphics.

Canvas has several methods for drawing paths, boxes, circles, text, and adding images.

Canvas Examples

A canvas is a rectangular area on an HTML page. By default, a canvas has no border and no content.

The markup looks like this:

Note: Always specify an id attribute (to be referred to in a script), and a width and height attribute to define the size of the canvas. To add a border, use the style attribute.

Here is an example of a basic, empty canvas:

<!DOCTYPE html>
<html>
<body>

<canvas id="myCanvas" width="200" height="100" style="border:1px solid #000000;">
Your browser does not support the HTML canvas tag.
</canvas>

</body>
</html>

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#HTML #canvas

HTML <canvas> Tag

Draw Image in Canvas using HTML

Draw Circular Gradient in Canvas

Draw Linear Gradient in Canvas

Canvas with Stroke Text

Canvas with a text

Draw a Circle using HTML Canvas with JavaScript

Draw a Line using HTML Canvas with JavaScript

Empty Canvas

What is HTML Canvas?

Canvas Examples

HTML Tags

HTML Examples