diff options
Diffstat (limited to 'files/ja/web/api/canvasrenderingcontext2d/removehitregion/index.html')
-rw-r--r-- | files/ja/web/api/canvasrenderingcontext2d/removehitregion/index.html | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/files/ja/web/api/canvasrenderingcontext2d/removehitregion/index.html b/files/ja/web/api/canvasrenderingcontext2d/removehitregion/index.html new file mode 100644 index 0000000000..cc0550f292 --- /dev/null +++ b/files/ja/web/api/canvasrenderingcontext2d/removehitregion/index.html @@ -0,0 +1,126 @@ +--- +title: CanvasRenderingContext2D.removeHitRegion() +slug: Web/API/CanvasRenderingContext2D/removeHitRegion +translation_of: Web/API/CanvasRenderingContext2D/removeHitRegion +--- +<div>{{APIRef}} {{SeeCompatTable}}</div> + +<p>Canvas 2D APIの<code><strong>CanvasRenderingContext2D</strong></code><strong><code>.removeHitRegion()</code></strong> メソッドは、canvasから与えられたヒット領域を削除します。</p> + +<h2 id="構文">構文</h2> + +<pre class="syntaxbox">void <var><em>ctx</em>.removeHitRegion(id);</var> +</pre> + +<h3 id="パラメータ">パラメータ</h3> + +<dl> + <dt>id</dt> + <dd>削除する領域の<code>id</code>をあらわす{{domxref("DOMString")}}。</dd> +</dl> + +<h2 id="例">例</h2> + +<h3 id="removeHitRegionメソッドを使う"><code>removeHitRegion</code>メソッドを使う</h3> + +<p>これは、<code>removeHitRegion</code>を使った簡単なコードです。</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:[8]">var canvas = document.getElementById("canvas"); +var ctx = canvas.getContext("2d"); + +// ヒット領域を指定 +ctx.addHitRegion({id: "eyes"}); + +// canvasからヒット領域を削除 +ctx.removeHitRegion("eyes"); +</pre> + +<h2 id="仕様">仕様</h2> + +<table class="standard-table"> + <tbody> + <tr> + <th scope="col">仕様</th> + <th scope="col">策定状況</th> + <th scope="col">コメント</th> + </tr> + <tr> + <td>{{SpecName('HTML WHATWG', "scripting.html#dom-context-2d-removehitregion", "CanvasRenderingContext2D.removeHitRegion")}}</td> + <td>{{Spec2('HTML WHATWG')}}</td> + <td></td> + </tr> + </tbody> +</table> + +<h2 id="ブラウザー実装状況">ブラウザー実装状況</h2> + +<p>{{CompatibilityTable}}</p> + +<div id="compat-desktop"> +<table class="compat-table"> + <tbody> + <tr> + <th>機能</th> + <th>Chrome</th> + <th>Firefox (Gecko)</th> + <th>Internet Explorer</th> + <th>Opera</th> + <th>Safari</th> + </tr> + <tr> + <td>基本サポート</td> + <td>{{CompatVersionUnknown}}[1]</td> + <td>{{CompatGeckoDesktop(30)}} [2]</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + </tr> + </tbody> +</table> +</div> + +<div id="compat-mobile"> +<table class="compat-table"> + <tbody> + <tr> + <th>機能</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>基本サポート</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatGeckoMobile(30)}} [2]</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + </tr> + </tbody> +</table> +</div> + +<h3 id="注記">注記</h3> + +<ul> + <li>[1] この機能はフラグを変更しないと動作しません。有効にするには<code>ExperimentalCanvasFeatures</code>フラグを<code>true</code>に設定してください。</li> + <li>[2] この機能は設定を変更しないと動作しません。about:configで<code>canvas.hitregions.enabled</code>を<code>true</code>に設定してください。</li> +</ul> + +<h2 id="関連情報">関連情報</h2> + +<ul> + <li>{{domxref("CanvasRenderingContext2D.addHitRegion()")}} {{experimental_inline}}</li> + <li>{{domxref("CanvasRenderingContext2D.clearHitRegions()")}} {{experimental_inline}}</li> +</ul> |