Metanet Forums

Code: Select all

//This is the code for the button which does all the work

on(press) {
	var bell:Function = function(x:Number) {
		return(Math.exp(-1*x*x));
	}

	var ratings:Array = new Array();
	ratings = _root.ratingInput.split(",");
	
	var fail:Boolean = false;
	_root.err._visible = false;
	
	_root.rateGraph.clear();
	
	for (var i:Number = 0; i < ratings.length; i++) {
		ratings[i] = parseFloat(ratings[i]);
		if (isNaN(ratings[i])) {
			fail = true;
			_root.err._visible = true;
			break;
		}
	}
	
	if (ratings.length == 0) {
		fail = true;
		_root.err._visible = true;
		break;
	}
	
	if (fail == false) {
		_root.rateGraph.lineStyle(1,0x0000FF);
		_root.rateGraph.beginFill(0x0080FF);
		
		var ylist:Array = new Array(125);
		var max:Number = 0;
		
		for (var i:Number = 0; i <= 125; i++) {
			ylist[i] = 0;
			for (var n:Number = 0; n < ratings.length; n++) {
				ylist[i] += bell((2.5 * ratings[n])-(i/10));
			}
			if (ylist[i] > max) {
				max = ylist[i];
			}
		}
		max = -32 / max;
		
		_root.rateGraph.moveTo(0,0);
		for (var i:Number = 0; i <= 125; i++) {
			_root.rateGraph.lineTo(i,max * ylist[i]);
		}
		_root.rateGraph.lineTo(125,0);
		_root.rateGraph.lineTo(0,0);
		_root.rateGraph.endFill();
	}
}

Code: Select all

on (press) {
	
	var bell:Function = function(x:Number) { //the bell curve function
		return(Math.exp(-1*x*x));
	}
	
	_root.err = ""; //clear error text
	var fail:Boolean = false; //incase something goes wrong. No easy way to break out of a event in Flash :(
	
	var a:Array = Array(); //easy and inefficient! Woo!
	a = _root.inputArray.split(","); //nice little feature that converts text into an array
	
	var b:Array = Array(_root.graphWidth); //the output array that will contain the heigh of each pixel in the graph. Creative variable names, I know.
	
	for (var i:Number = 0; i < a.length; i++) {
		a[i] = parseInt(a[i]); //converts string to real number. Flash lets you chance variable types in arrays. Isn't it nice ^_^
		if (isNaN(a[i])) { //oh no! Something went horribly wrong!
			fail = true;
			err += "Error: Unable to parse input. Non-numeric entries detected.\n"; //better than a segfault!
		}
	}
	var k:Number = 0; //more descriptive variable names! WoOoOoO! For now this variable records the maximum height, but that will change later
	
	//the following loop does the initial pass through the graph, establishing the ratios between the pixels
	for (var i:Number = 0; i < _root.graphWidth; i++) {
		b[i] = 0;
		for (var j:Number = 0; j < a.length; j++) {
			b[i] += a[j] * bell((i - (j * _root.graphWidth / a.length))/10); //currently, the algorithm uses a bell curve where 10 pixels is 1 unit. Changing the 10 to a smaller number will increase the accuracy, while making the curve more sudden
		}
		
		if (b[i] > k) { //if b[i]'s dad can beat up k's dad
			k = b[i]; //we have a new champion!
		}
	}
	
	k = _root.graphHeight / k; //now k is the constant we multiply everything by to scale it to fit the graph
	
	//this second pass scales the graph such that the highest value is the height of the graph
	for (var i:Number = 0; i < _root.graphWidth; i++) {
		b[i] *= -1 * k;
	}
	
	if (a.length == 0) {
		fail = true;
		err += "Error: No input detected!";
	}
	
	if (fail == false) { //now print it to the textbox
		_root.outputArray = b.toString();
	}
	
	//aaaaaand we're done! Coffee break!
	//oh wait, the sample graph!
	
	_root.graph.clear();
	_root.graph.lineStyle(1,0x0000FF);
	_root.graph.moveTo(0,b[0]);
	for (var i:Number = 0; i < b.length; i++) {
		_root.graph.lineTo(i,b[i]);
	}
	
	_root.graph.lineStyle(1,0);
	_root.graph.moveTo(0,0);
	_root.graph.lineTo(0,-1 * _root.graphHeight);
	_root.graph.moveTo(0,0);
	_root.graph.lineTo(_root.graphWidth, 0);
	
	trace(b.length);
	//ok, NOW we're done!
}

Code: Select all

b[i] += a[j] * bell((i - (j * _root.graphWidth / a.length))/10); //currently, the algorithm uses a bell curve where 10 pixels is 1 unit. Changing the 10 to a smaller number will increase the accuracy, while making the curve more sudden