Qt 4.8: rotate.js Example File (script/context2d/scripts/rotate.js)

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# rotate.js Example File

script/context2d/scripts/rotate.js

     var ctx = document.getElementById('tutorial').getContext('2d');
       ctx.translate(75,75);

       for (i=1;i<6;i++){ // Loop through rings (from inside to out)
         ctx.save();
         ctx.fillStyle = 'rgb('+(51*i)+','+(255-51*i)+',255)';

         for (j=0;j<i*6;j++){ // draw individual dots
           ctx.rotate(Math.PI*2/(i*6));
           ctx.beginPath();
           ctx.arc(0,i*12.5,5,0,Math.PI*2,true);
           ctx.fill();
         }

         ctx.restore();
       }