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How to draw a circular gradient in HTML5?
This method returns a CanvasGradient object that represents a radial gradient that paints along the cone given by the circles represented by the arguments. The first three arguments define a circle with coordinates (x1,y1) and radius r1 and the second a circle with coordinates (x2,y2) and radius r2.
createRadialGradient(x0, y0, r0, x1, y1, r1)
Here are the parameter values of the createRadialGradient() method −
| S.No | Parameter & Description |
|---|---|
| 1 | x0 x-coordinate- Starting point of the gradient |
| 2 | y0 y- coordinate - Starting point of the gradient |
| 3 | r0 Radius of the starting circle |
| 4 | x1 x-coordinate - Ending point of the gradient |
| 5 | y1 y- coordinate - Ending point of the gradient |
6 | r1 Radius of the ending circle |
You can try to run the following code to learn how to draw a radial/circular gradient in HTML5 −
<!DOCTYPE html>
<html>
<head>
<title>HTML5 Radial Gradient</title>
</head>
<body>
<canvas id="newCanvas" width="450" height="250" style="border:1px solid
#d3d3d3;"></canvas>
<script>
var c = document.getElementById("newCanvas");
var ctxt = c.getContext("2d");
var linegrd = ctxt.createRadialGradient(75, 50, 5, 90, 60, 100);
linegrd.addColorStop(0, "#FFFFFF");
linegrd.addColorStop(1, "#66CC00");
ctxt.fillStyle = linegrd;
ctxt.fillRect(20, 10, 200, 150);
</script>
</body>
</html>
Updated on: 15-Jun-2020
166 Views
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