Canvas Linear Gradients
How to Create a Linear Gradient
To create a linear gradient, follow these steps
- canvas - Assigning the canvas element to a variable.
- ctx - Assigning the 2d rendering context to another variable by calling the
getContext('2d')method. - grad - Creating a new CanvasGradient object using
createLinearGradient()canvas method, then assigning it to a variable. - addColorStop() - Use
addColorStop()canvas method to add a new color stop, defined by an offset and a color. - fillStyle - Use
fillStylecanvas property to specify the gradient to use inside shapes (any shape). - fillRect() - Use
fillRect()canvas method to draws a rectangle that is filled according to the currentfillStyle.
Example
HTML Online Editor
<!DOCTYPE html>
<html lang="en-US">
<body>
<canvas id="point" width="210" height="110">
Your browser does not support the canvas element.
</canvas>
<script>
var canvas = document.getElementById("point");
var ctx = canvas.getContext("2d");
// Create gradient
var grad = ctx.createLinearGradient(0, 0, 200, 0);
grad.addColorStop(0, "black");
grad.addColorStop(1, "gold");
// Fill with gradient
ctx.fillStyle = grad;
ctx.fillRect(0, 0, 200, 100);
</script>
</body>
</html>
Syntax
ctx.createLinearGradient(x0, y0, x1, y1)
Attributes Value
| Value | Explanation |
|---|---|
| x0 | Specifies the x-axis coordinate of the start point. |
| y0 | Specifies the y-axis coordinate of the start point. |
| x1 | Specifies the x-axis coordinate of the end point. |
| y1 | Specifies the y-axis coordinate of the end point. |
Reminder
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