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HTML5 canvas miterLimit Attribute

HTML5 track Tag Reference HTML5 canvas reference

Example

Draw lines with the miterLimit set to 5:

<script type="text/javascript">
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
ctx.lineWidth=10;
ctx.lineJoin="miter";
ctx.miterLimit=5;
ctx.moveTo(20,20);
ctx.lineTo(50,27);
ctx.lineTo(20,34);
ctx.stroke();
</script>

Try it yourself »

Definition and Usage

The miterLimit attribute works only if the lineJoin attribute is "miter".

The miter is the distance between the inner corner and the outer corner in a line.

The distance grows bigger as the angle of the corner gets smaller.

To prevent the corner from being too big, we can use the miterLimit attribute.

If the distance exceeds the miterLimit, the corner will be displayed as lineJoin type "bevel" (Fig 3):

Default value: 10
JavaScript syntax: context.miterLimit=4;


Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The lineJoin attribute is supported in all major browsers.


Attribute Values

Value Description Play it
number The limit for the size of a corner, if the size exceeds the miterLimit, the corner will display as lineJoin "bevel". Play it »


HTML5 track Tag Reference HTML5 canvas reference



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