The CanvasRenderingContext2D.miterLimit property of the Canvas 2D API sets the miter limit ratio in space units. When getting, it returns the current value (10.0 by default). When setting, zero, negative, Infinity and NaN values are ignored; otherwise the current value is set to the new value.
See also the chapter Applying styles and color in the Canvas Tutorial.
Syntax
ctx.miterLimit = value;
Options
- value
- A number specifying the miter limit ratio in space units. Zero, negative, InfinityandNaNvalues are ignored.
Examples
Using the miterLimit property
See the chapter Applying styles and color in the Canvas Tutorial for more information.
Playable code
<canvas id="canvas" width="400" height="200" class="playable-canvas"></canvas> <div class="playable-buttons"> <input id="edit" type="button" value="Edit" /> <input id="reset" type="button" value="Reset" /> </div> <textarea id="code" class="playable-code"> ctx.beginPath(); ctx.moveTo(0,0); ctx.lineWidth = 15; ctx.lineTo(100, 100); ctx.stroke();</textarea>
var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");
var textarea = document.getElementById("code");
var reset = document.getElementById("reset");
var edit = document.getElementById("edit");
var code = textarea.value;
function drawCanvas() {
  ctx.clearRect(0, 0, canvas.width, canvas.height);
  eval(textarea.value);
}
reset.addEventListener("click", function() {
  textarea.value = code;
  drawCanvas();
});
edit.addEventListener("click", function() {
  textarea.focus();
})
textarea.addEventListener("input", drawCanvas);
window.addEventListener("load", drawCanvas);
| Screenshot | Live sample | 
|---|---|
|  | 
Specifications
| Specification | Status | Comment | 
|---|---|---|
| WHATWG HTML Living Standard The definition of 'CanvasRenderingContext2D.miterLimit' in that specification. | Living Standard | 
Browser compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari | 
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | 
| Feature | Android | Chrome for Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile | 
|---|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | 
WebKit/Blink-specific notes
- In WebKit- and Blink-based Browsers, a non-standard and deprecated method ctx.setMiterLimit()is implemented besides this property.
Gecko-specific notes
- Starting Gecko 2.0 (Firefox 4 / Thunderbird 3.3 / SeaMonkey 2.1), setting miterLimitto a negative value no longer throws an exception; instead, it properly ignores non-positive values.
See also
- The interface defining it, CanvasRenderingContext2D
- CanvasRenderingContext2D.lineCap
- CanvasRenderingContext2D.lineJoin
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                       Contributors to this page: 
        erikadoyle, 
        fscholz
                    
                    
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                      erikadoyle,