--- title: CanvasRenderingContext2D.fillRect() slug: Web/API/CanvasRenderingContext2D/fillRect tags: - API - Canvas - CanvasRenderingContext2D - Method - Methode(2) - Reference - Referenz translation_of: Web/API/CanvasRenderingContext2D/fillRect ---
Die Methode CanvasRenderingContext2D
.fillRect()
der Canvas 2D API zeichnet ein ausgefülltes Rechteck an der Position (x
, y
). Die Größe wird über die Parameter width
und height
bestimmt. Die Füllfarbe wird über das Attribut fillStyle
des Context-Objekts festgelegt.
void ctx.fillRect(x, y, width, height);
x
y
width
height
fillRect
Dies ist ein einfaches Code-Beispiel, welches die fillRect
Methode nutzt.
<canvas id="canvas"></canvas>
var canvas = document.getElementById("canvas"); var ctx = canvas.getContext("2d"); ctx.fillStyle = "green"; ctx.fillRect(10, 10, 100, 100); // fill the whole canvas // ctx.fillRect(0, 0, canvas.width, canvas.height);
Ändern Sie den unten gezeigten Code und sehen Sie Ihre Änderungen live im Canvas-Element:
<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.fillStyle = "green"; ctx.fillRect(10, 10, 100, 100);</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);
{{ EmbedLiveSample('Playable_code', 700, 360) }}
Spezifikation | Status | Kommentar |
---|---|---|
{{SpecName('HTML WHATWG', "scripting.html#dom-context-2d-fillrect", "CanvasRenderingContext2D.fillRect")}} | {{Spec2('HTML WHATWG')}} |
{{CompatibilityTable}}
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | {{CompatVersionUnknown}} | {{CompatVersionUnknown}} | {{CompatVersionUnknown}} | {{CompatVersionUnknown}} | {{CompatVersionUnknown}} |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | {{CompatVersionUnknown}} | {{CompatVersionUnknown}} | {{CompatVersionUnknown}} | {{CompatVersionUnknown}} | {{CompatVersionUnknown}} | {{CompatVersionUnknown}} |