# stroke-miterlimit

The `stroke-miterlimit` attribute is a presentation attribute defining a limit on the ratio of the miter length to the `stroke-width` used to draw a miter join. When the limit is exceeded, the join is converted from a miter to a bevel.

Note: As a presentation attribute `stroke-miterlimit` can be used as a CSS property.

As a presentation attribute, it can be applied to any element but it has effect only on the following nine elements: `<altGlyph>`, `<path>`, `<polygon>`, `<polyline>`, `<rect>`, `<text>`, `<textPath>`, `<tref>`, and `<tspan>`

```<svg viewBox="0 0 38 30" xmlns="http://www.w3.org/2000/svg">
<!-- Impact of the default miter limit -->
<path stroke="black" fill="none" stroke-linejoin="miter" id="p1"
d="M1,9 l7   ,-3 l7   ,3
m2,0 l3.5 ,-3 l3.5 ,3
m2,0 l2   ,-3 l2   ,3
m2,0 l0.75,-3 l0.75,3
m2,0 l0.5 ,-3 l0.5 ,3" />

<!-- Impact of the smallest miter limit (1) -->
<path stroke="black" fill="none" stroke-linejoin="miter"
stroke-miterlimit="1" id="p2"
d="M1,19 l7   ,-3 l7   ,3
m2, 0 l3.5 ,-3 l3.5 ,3
m2, 0 l2   ,-3 l2   ,3
m2, 0 l0.75,-3 l0.75,3
m2, 0 l0.5 ,-3 l0.5 ,3" />

<!-- Impact of a large miter limit (8) -->
<path stroke="black" fill="none" stroke-linejoin="miter"
stroke-miterlimit="8" id="p3"
d="M1,29 l7   ,-3 l7   ,3
m2, 0 l3.5 ,-3 l3.5 ,3
m2, 0 l2   ,-3 l2   ,3
m2, 0 l0.75,-3 l0.75,3
m2, 0 l0.5 ,-3 l0.5 ,3" />

<!-- the following pink lines highlight the position of the path for each stroke -->
<path stroke="pink" fill="none" stroke-width="0.05"
d="M1, 9 l7,-3 l7,3 m2,0 l3.5,-3 l3.5,3 m2,0 l2,-3 l2,3 m2,0 l0.75,-3 l0.75,3 m2,0 l0.5,-3 l0.5,3
M1,19 l7,-3 l7,3 m2,0 l3.5,-3 l3.5,3 m2,0 l2,-3 l2,3 m2,0 l0.75,-3 l0.75,3 m2,0 l0.5,-3 l0.5,3
M1,29 l7,-3 l7,3 m2,0 l3.5,-3 l3.5,3 m2,0 l2,-3 l2,3 m2,0 l0.75,-3 l0.75,3 m2,0 l0.5,-3 l0.5,3" />
</svg>```

When two line segments meet at a sharp angle and `miter` joins have been specified for `stroke-linejoin`, it is possible for the miter to extend far beyond the thickness of the line stroking the path. The `stroke-miterlimit` ratio is used to define when the limit is exceeded, if so the join is converted from a miter to a bevel.

The ratio of miter length (distance between the outer tip and the inner corner of the miter) to `stroke-width` is directly related to the angle (theta) between the segments in user space by the formula:

$\mathrm{stroke-miterlimit}=\frac{\mathrm{miterLength}}{\mathrm{stroke-width}}=\frac{1}{\mathrm{sin}\left(\frac{\theta }{2}\right)}$

For example, a miter limit of 1.414 converts miters to bevels for theta less than 90 degrees, a limit of 4.0 converts them for theta less than approximately 29 degrees, and a limit of 10.0 converts them for theta less than approximately 11.5 degrees.

## Usage context

Value 4 Yes

The value of `stroke-miterlimit` must be greater than or equal to 1.

## Browser compatibility

Update compatibility data on GitHub
Desktop Mobile Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Chrome ? Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android ? Chrome Android ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?

### Legend

Compatibility unknown
Compatibility unknown

## Specification

Specification Status Comment
Scalable Vector Graphics (SVG) 2
The definition of 'stroke-miterlimit' in that specification.
Candidate Recommendation Definition for shapes and texts
Scalable Vector Graphics (SVG) 1.1 (Second Edition)
The definition of 'stroke-miterlimit' in that specification.
Recommendation Initial definition for shapes and texts