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diff --git a/files/de/web/api/canvasrenderingcontext2d/setlinedash/index.html b/files/de/web/api/canvasrenderingcontext2d/setlinedash/index.html new file mode 100644 index 0000000000..a7d5bd82c3 --- /dev/null +++ b/files/de/web/api/canvasrenderingcontext2d/setlinedash/index.html @@ -0,0 +1,179 @@ +--- +title: CanvasRenderingContext2D.setLineDash() +slug: Web/API/CanvasRenderingContext2D/setLineDash +translation_of: Web/API/CanvasRenderingContext2D/setLineDash +--- +<div>{{APIRef}}</div> + +<p>The <code><strong>CanvasRenderingContext2D</strong></code><strong><code>.setLineDash()</code></strong> method of the Canvas 2D API sets the line dash pattern.</p> + +<h2 id="Syntax">Syntax</h2> + +<pre class="syntaxbox">void <var><em>ctx</em>.setLineDash(segments);</var> +</pre> + +<h3 id="Parameters">Parameters</h3> + +<dl> + <dt><code>segments</code></dt> + <dd>An {{jsxref("Array")}}. A list of numbers that specifies distances to alternately draw a line and a gap (in coordinate space units). If the number of elements in the array is odd, the elements of the array get copied and concatenated. For example, <code>[5, 15, 25]</code> will become <code>[5, 15, 25, 5, 15, 25]</code>. An empty array clears the dashes, so that a solid line will be drawn.</dd> +</dl> + +<h2 id="Examples">Examples</h2> + +<h3 id="Using_the_setLineDash_method">Using the <code>setLineDash</code> method</h3> + +<p>This is just a simple code snippet which uses the <code>setLineDash</code> method to draw a dashed line.</p> + +<h4 id="HTML">HTML</h4> + +<pre class="brush: html"><canvas id="canvas"></canvas> +</pre> + +<h4 id="JavaScript">JavaScript</h4> + +<pre class="brush: js; highlight:[4]">var canvas = document.getElementById("canvas"); +var ctx = canvas.getContext("2d"); + +ctx.setLineDash([5, 15]); + +ctx.beginPath(); +ctx.moveTo(0,100); +ctx.lineTo(400, 100); +ctx.stroke(); +</pre> + +<p>Edit the code below and see your changes update live in the canvas:</p> + +<div style="display: none;"> +<h6 id="Playable_code">Playable code</h6> + +<pre class="brush: html"><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.setLineDash([5, 15]); +ctx.beginPath(); +ctx.moveTo(0,100); +ctx.lineTo(400, 100); +ctx.stroke();</textarea> +</pre> + +<pre class="brush: js">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); +</pre> +</div> + +<p>{{ EmbedLiveSample('Playable_code', 700, 360) }}</p> + +<h2 id="Specifications">Specifications</h2> + +<table class="standard-table"> + <tbody> + <tr> + <th scope="col">Specification</th> + <th scope="col">Status</th> + <th scope="col">Comment</th> + </tr> + <tr> + <td>{{SpecName('HTML WHATWG', "scripting.html#dom-context-2d-setlinedash", "CanvasRenderingContext2D.setLineDash")}}</td> + <td>{{Spec2('HTML WHATWG')}}</td> + <td> </td> + </tr> + </tbody> +</table> + +<h2 id="Browser_compatibility">Browser compatibility</h2> + +<p>{{CompatibilityTable}}</p> + +<div id="compat-desktop"> +<table class="compat-table"> + <tbody> + <tr> + <th>Feature</th> + <th>Chrome</th> + <th>Firefox (Gecko)</th> + <th>Internet Explorer</th> + <th>Opera</th> + <th>Safari</th> + </tr> + <tr> + <td>Basic support</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{ CompatGeckoDesktop(27) }}</td> + <td>{{ CompatIE(11) }}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + </tr> + </tbody> +</table> +</div> + +<div id="compat-mobile"> +<table class="compat-table"> + <tbody> + <tr> + <th>Feature</th> + <th>Android</th> + <th>Chrome for Android</th> + <th>Firefox Mobile (Gecko)</th> + <th>IE Mobile</th> + <th>Opera Mobile</th> + <th>Safari Mobile</th> + </tr> + <tr> + <td>Basic support</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{ CompatGeckoMobile(27) }}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + </tr> + </tbody> +</table> +</div> + +<h2 id="Gecko-specific_notes">Gecko-specific notes</h2> + +<ul> + <li>Starting with Gecko 7.0 {{geckoRelease("7.0")}}, the non-standard and deprecated property <code>mozDash</code> has been implemented to set and get a dash list. This property will be deprecated and removed in the future, see {{bug(931643)}}. Use <code>setLineDash()</code> instead.</li> +</ul> + +<h2 id="WebKit-specific_notes">WebKit-specific notes</h2> + +<ul> + <li>In WebKit-based browsers (e.g. Safari), the non-standard and deprecated property <code>webkitLineDash</code> is implemented besides this method. Use <code>setLineDash()</code> instead.</li> +</ul> + +<h2 id="See_also">See also</h2> + +<ul> + <li>The interface defining it, {{domxref("CanvasRenderingContext2D")}}</li> + <li>{{domxref("CanvasRenderingContext2D.getLineDash()")}}</li> + <li>{{domxref("CanvasRenderingContext2D.lineDashOffset")}}</li> +</ul> |