HTML canvas arcTo() Method
Definition and Usage
arcTo() Method to create an arc/curve between two tangents on the canvas.
Tip:Please use stroke() Method to draw an exact arc on the canvas.
Example
Create an arc between two tangents on the canvas:
JavaScript:
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
ctx.beginPath();
ctx.beginPath();
ctx.moveTo(20,20); // Create the starting point
ctx.lineTo(100,20); // Create a horizontal line
ctx.arcTo(150,20,150,70,50); // Create an arc
ctx.lineTo(150,120); // Create a vertical line
ctx.stroke(); // Draw
Syntax
context.fillRect(x1,y1,x2,y2,r);
Parameter Value
| Parameter | Description |
|---|---|
| x1 | The x-coordinate of the start point of the arc. |
| y1 | The y-coordinate of the start point of the arc. |
| x2 | The x-coordinate of the end point of the arc. |
| y2 | The y-coordinate of the end point of the arc. |
| r | The radius of the arc. |
Browser Support
The numbers in the table indicate the first browser version that fully supports this property.
| Chrome | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|
| Chrome | Edge | Firefox | Safari | Opera |
| 4.0 | 9.0 | 3.6 | 4.0 | 10.1 |
Note:Internet Explorer 8 and earlier versions do not support the <canvas> element.
