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diff --git a/files/pt-br/web/api/canvasrenderingcontext2d/lineto/index.html b/files/pt-br/web/api/canvasrenderingcontext2d/lineto/index.html new file mode 100644 index 0000000000..1876b469a8 --- /dev/null +++ b/files/pt-br/web/api/canvasrenderingcontext2d/lineto/index.html @@ -0,0 +1,176 @@ +--- +title: CanvasRenderingContext2D.lineTo() +slug: Web/API/CanvasRenderingContext2D/lineTo +tags: + - API + - Canvas + - CanvasRenderingContext2D + - Referencia + - metodo +translation_of: Web/API/CanvasRenderingContext2D/lineTo +--- +<div>{{APIRef}}</div> + +<p>O método <code><strong>CanvasRenderingContext2D</strong></code><strong><code>.lineTo()</code></strong> da API Canvas 2D conecta o último ponto do sub-caminho (<em>sub-path</em>) para as coordenadas <code>x, y</code>, através de uma linha (mas na realidade não a desenha).</p> + +<h2 id="Sintaxe">Sintaxe</h2> + +<pre class="syntaxbox">void <var><em>ctx</em>.lineTo(x, y);</var> +</pre> + +<h3 id="Parâmetros">Parâmetros</h3> + +<dl> + <dt><code>x</code></dt> + <dd>O valor da coordenada x que indica o fim da linha.</dd> + <dt><code>y</code></dt> + <dd>O valor da coordenada y que indica o fim da linha.</dd> +</dl> + +<h2 id="Exemplos">Exemplos</h2> + +<h3 id="Usando_o_método_lineTo">Usando o método <code>lineTo</code></h3> + +<p>sto é só um simples trecho de código que usa o método <code>lineTo</code>. Use o {{domxref("CanvasRenderingContext2D.beginPath", "beginPath()")}} para indicar o <em>path</em> onde será desenhada a linha, mova a caneta (<em>pen</em>) com {{domxref("CanvasRenderingContext.moveTo", "moveTo()")}} e use o método {{domxref("CanvasRenderingContext2D.stroke", "stroke()")}} para desenhar a linha.</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:[6]">var canvas = document.getElementById('canvas'); +var ctx = canvas.getContext('2d'); + +ctx.beginPath(); +ctx.moveTo(50, 50); +ctx.lineTo(100, 100); +ctx.stroke(); +</pre> + +<p>Edite o código abaixo e veja as alterações instantâneas no 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.beginPath(); +ctx.moveTo(50,50); +ctx.lineTo(100, 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="Especificações">Especificações</h2> + +<table class="standard-table"> + <tbody> + <tr> + <th scope="col">Especificação</th> + <th scope="col">Estado</th> + <th scope="col">Comentário</th> + </tr> + <tr> + <td>{{SpecName('HTML WHATWG', "scripting.html#dom-context-2d-lineto", "CanvasRenderingContext2D.lineTo")}}</td> + <td>{{Spec2('HTML WHATWG')}}</td> + <td> </td> + </tr> + </tbody> +</table> + +<h2 id="Compatibilidade_em_Navegadores">Compatibilidade em Navegadores</h2> + +<p>{{CompatibilityTable}}</p> + +<div id="compat-desktop"> +<table class="compat-table"> + <tbody> + <tr> + <th>Característica</th> + <th>Chrome</th> + <th>Edge</th> + <th>Firefox (Gecko)</th> + <th>Internet Explorer</th> + <th>Opera</th> + <th>Safari</th> + </tr> + <tr> + <td>Suporte básico</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + </tr> + </tbody> +</table> +</div> + +<div id="compat-mobile"> +<table class="compat-table"> + <tbody> + <tr> + <th>Característica</th> + <th>Android</th> + <th>Chrome para Android</th> + <th>Edge</th> + <th>Firefox Mobile (Gecko)</th> + <th>IE Mobile</th> + <th>Opera Mobile</th> + <th>Safari Mobile</th> + </tr> + <tr> + <td>Suporte básico</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + </tr> + </tbody> +</table> +</div> + +<h2 id="Veja_também">Veja também</h2> + +<ul> + <li>A definição da interface {{domxref("CanvasRenderingContext2D")}}</li> + <li>{{domxref("CanvasRenderingContext2D.moveTo()")}}</li> + <li>{{domxref("CanvasRenderingContext2D.stroke()")}}</li> +</ul> |