arc.js Example File
script/context2d/scripts/arc.jsvar canvas = document.getElementById('tutorial'); // Make sure we don't execute when canvas isn't supported if (canvas.getContext){ // use getContext to use the canvas for drawing var ctx = canvas.getContext('2d'); // Draw shapes for (i=0;i<4;i++){ for(j=0;j<3;j++){ ctx.beginPath(); var x = 25+j*50; // x coordinate var y = 25+i*50; // y coordinate var radius = 20; // Arc radius var startAngle = 0; // Starting point on circle var endAngle = Math.PI+(Math.PI*j)/2; // End point on circle var clockwise = i%2==0 ? false : true; // clockwise or anticlockwise ctx.arc(x,y,radius,startAngle,endAngle, clockwise); if (i>1){ ctx.fill(); } else { ctx.stroke(); } } } }
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