Łuk koła i wycinek koła (2) (HTML5 canvas)

Łuk koła i wycinek koła (2)

Zawartość możesz zobaczyć w
przeglądarce obsługującej element <canvas>
z kontekstem "2d"

Listing

	var cv = document.getElementById("canvas");
	var ctx = cv.getContext("2d");
	ctx.beginPath();
	var x = 100;
	var y = 50;
	var radius = 30;
	var startAngle = 1.5*Math.PI;
	var endAngle = 0;
	var counterClockwise = true;
	ctx.arc(x, y, radius, startAngle, endAngle, counterClockwise);
	ctx.lineWidth = 5;
	ctx.strokeStyle = "black";
	ctx.stroke();
	//-
	ctx.beginPath();
	var x = 100;
	var y = 150;
	var radius = 30;
	var startAngle = 1.5*Math.PI;
	var endAngle = 0;
	var counterClockwise = true;
	ctx.arc(x, y, radius, startAngle, endAngle, counterClockwise);
	ctx.lineTo(x,y);
	ctx.closePath();
	ctx.fillStyle = "#00aaff";
	ctx.fill();
	//-
	ctx.beginPath();
	var x = 100;
	var y = 250;
	var radius = 30;
	var startAngle = 1.5*Math.PI;
	var endAngle = 0;
	var counterClockwise = true;
	ctx.arc(x, y, radius, startAngle, endAngle, counterClockwise);
	ctx.lineWidth = 5;
	ctx.strokeStyle = "black";
	ctx.stroke();
	ctx.lineTo(x,y);
	ctx.closePath();
	ctx.fillStyle = "#00aaff";
	ctx.fill();
	//-
	ctx.beginPath();
	var x = 200;
	var y = 150;
	var radius = 30;
	var startAngle = 1.5*Math.PI;
	var endAngle = 0;
	var counterClockwise = true;
	ctx.arc(x, y, radius, startAngle, endAngle, counterClockwise);
	ctx.closePath();
	ctx.fillStyle = "#00aaff";
	ctx.fill();