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allnatural on 03/16/09

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Dynamically Draw A Logarithmic Spiral

/ Published in: ActionScript 3

Need to adjust this code to be encapsulated. Linestyle is not being called correctly.

`////// centerX-- X origin of the spiral.// centerY-- Y origin of the spiral.// radius--- Distance from origin to outer arm.// sides---- Number of points or sides along the spiral's arm.// coils---- Number of coils or full rotations. (Positive numbers spin clockwise, negative numbers spin counter-clockwise)// rotation- Overall rotation of the spiral. ('0'=no rotation, '1'=360 degrees, '180/360'=180 degrees)//function logSpiral(centerX, centerY, radius, sides, coils, rotation){	//	with(this){// Draw within the clip calling the function.		//		// Start at the center.		moveTo(centerX, centerY);		//		// How far to rotate around center for each side.		var aroundStep = coils/sides;// 0 to 1 based.		//		// Convert aroundStep to radians.		var aroundRadians = aroundStep * 2 * Math.PI;		//		// Convert rotation to radians.		rotation *= 2 * Math.PI;		//		// For every side, step around and away from center.		for(var i=1; i<=sides; i++){			//			// How far away from center			var away = Math.pow(radius, i/sides);			//			// How far around the center.			var around = i * aroundRadians + rotation;			//			// Convert 'around' and 'away' to X and Y.			var x = centerX + Math.cos(around) * away;			var y = centerY + Math.sin(around) * away;			//			// Now that you know it, do it.			lineTo(x, y);		}	}}////lineStyle(2, 0x000000);// Black.//       (centerX, centerY, radius, sides, coils, rotation)logSpiral(    250,     200,    320,   700,    14,        0);lineStyle(2, 0xD0D0D0);// Gray.logSpiral(    250,     200,    320,   700,    14,       .5);////`

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Posted By: menakakc on March 23, 2009

I want the java code to get logarithmic spiral where "r=ae^btheta",a&b are constants ,theta is 0,30,60,90,120,150...........so on.

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