Canvas Draw Bezier
How to Draw a Bezier
To draw a bezier, 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. - beginPath() - Use
beginPath()canvas method to start a new path by emptying the list of sub-paths. - moveTo() - Use
moveTo()canvas method to begin a new sub-path at the point specified by the given (x, y) coordinates. - bezierCurveTo() - Use
bezierCurveTo()canvas method to add a cubic Bézier curve to the current sub-path. - stroke() - Use
stroke()canvas method to stroke (outline) the current or given path with the currentstrokeStyle. The defaultstrokeStyleis 'black'.
Example
HTML Online Editor
<!DOCTYPE html>
<html lang="en-US">
<body>
<canvas id="point" width="230" height="150">
Your browser does not support the canvas element.
</canvas>
<script>
var canvas = document.getElementById('point');
var ctx = canvas.getContext('2d');
ctx.beginPath();
ctx.moveTo(5, 5);
ctx.bezierCurveTo(100,150, 200,10, 220,140);
ctx.stroke();
</script>
</body>
</html>
Syntax
ctx.bezierCurveTo(cp1x, cp1y, cp2x, cp2y, x, y)
Attributes Value
| Value | Explanation |
|---|---|
| cp1x | Specifies the x-axis coordinate of the first control point. |
| cp1y | Specifies the y-axis coordinate of the first control point. |
| cp2x | Specifies the x-axis coordinate of the second control point. |
| cp2y | Specifies the y-axis coordinate of the second control point. |
| x | Specifies the x-axis coordinate of the end point. |
| y | Specifies the y-axis coordinate of the end point. |
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