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POHow can I alter the colour of a html5 canvas element using jquery?
 

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  1. POHow can I alter the colour of a html5 canvas element using jquery?
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    <p>Basically I have several canvas drawings on my page what I want to happen is when a the jquery function is activated the canvas drawings change to the colour of my choosing. I assume it involves some way of accessing context.fillStyle which defines the original colour but I am unsure how to alter it. In addition, would it be possible to instead give the canvas drawing a css style in the first instance and then change that style when the jquery is processed?</p> <p><strong>HTML</strong></p> <pre><code> &lt;canvas class="canvaslink" id="canvasId" width="50" height="50"&gt;&lt;/canvas&gt; &lt;canvas class="canvaslink" id="canvasId2" width="50" height="50"&gt;&lt;/canvas&gt; </code></pre> <p><strong>Canvas script</strong></p> <pre><code>&lt;script&gt; function drawSomething(canvas) { var context = canvas.getContext("2d"); var width = 125; // Triangle Width var height = 45; // Triangle Height var padding = 5; // Draw a path context.beginPath(); context.moveTo(padding + width-125, height + padding); // Top Corner context.lineTo(padding + width-90,height-17 + padding); // point context.lineTo(padding, height-35 + padding); // Bottom Left context.closePath(); // Fill the path context.fillStyle = "#9ea7b8"; context.fill(); } drawSomething(document.getElementById("canvasId")); drawSomething(document.getElementById("canvasId2")); &lt;/script&gt; </code></pre> <p><strong>Jquery Script</strong></p> <pre><code>&lt;script&gt; var counter = $('#counter div strong'); var counterH2 = $('h2 strong'); $('#box').click(function(){ $("#counter").css("display", "block"); var counterValue = counter.text(); counterValue = ++counterValue; counter.text(counterValue); counterH2.text(counterValue); if (counterValue == 3){ alert("Thanks for visiting!"); $('body').css({"background-color":"#9ea7b8"}); $('body').css({"color":"#11112c"}); **//I'd like to change the canvas colour here!** } }); &lt;/script&gt; </code></pre> <p>Many thanks</p>
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