formatting

curvedLines.js

 /* The MIT License
 
-Copyright (c) 2011 by Michael Zinsmaier and nergal.dev
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
+ Copyright (c) 2011 by Michael Zinsmaier and nergal.dev
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+ */
 
 /*
 
-____________________________________________________
-
-what it is:
-____________________________________________________
+ ____________________________________________________
 
-curvedLines is a plugin for flot, that tries to display lines in a smoother way.
-The plugin is based on nergal.dev's work https://code.google.com/p/flot/issues/detail?id=226
-and further extended with a mode that forces the min/max points of the curves to be on the
-points. Both modes are achieved through adding of more data points
-=> 1) with large data sets you may get trouble
-=> 2) if you want to display the points too, you have to plot them as 2nd data series over the lines
+ what it is:
+ ____________________________________________________
 
-This is version 0.1 of curvedLines so it will probably not work in every case. However
-the basic form of use descirbed next works (:
+ curvedLines is a plugin for flot, that tries to display lines in a smoother way.
+ The plugin is based on nergal.dev's work https://code.google.com/p/flot/issues/detail?id=226
+ and further extended with a mode that forces the min/max points of the curves to be on the
+ points. Both modes are achieved through adding of more data points
+ => 1) with large data sets you may get trouble
+ => 2) if you want to display the points too, you have to plot them as 2nd data series over the lines
 
-Feel free to further improve the code
+ This is version 0.1 of curvedLines so it will probably not work in every case. However
+ the basic form of use descirbed next works (:
 
-____________________________________________________
+ Feel free to further improve the code
 
-how to use it:
-____________________________________________________
+ ____________________________________________________
 
+ how to use it:
+ ____________________________________________________
 
  var d1 = [[5,5],[7,3],[9,12]];
 
  var options = { series: { curvedLines: {  active: true }}};
 
-
  $.plot($("#placeholder"), [{data = d1, curvedLines: { show: true}}], options);
 
-_____________________________________________________
+ _____________________________________________________
 
-options:
-_____________________________________________________
+ options:
+ _____________________________________________________
 
  fill: 			  bool true => lines get filled
  fillColor: 		  null or the color that should be used for filling
@@ -71,8 +68,7 @@ _____________________________________________________
  to enforce the min max condition. (you will get curvePointFactor * 3 * |datapoints|
  "virtual" points if fit is true)
 
-  
-*/
+ */
 
 /*
  *  v0.1   initial commit
@@ -82,33 +78,34 @@ _____________________________________________________
  *
  */
 
-(function ($) {
-    
-    
-    
-    var options = { series: { curvedLines: {  active: false,
-    										  show: false,
-    										  fit: false,
-    										  fill: false,
-    										  fillColor: null,
-    										  lineWidth: 2,
-    										  curvePointFactor: 20,
-    										  fitPointDist: 0.0001
-    									   }}};
-    									   
+(function($) {
+
+	var options = {
+		series : {
+			curvedLines : {
+				active : false,
+				show : false,
+				fit : false,
+				fill : false,
+				fillColor : null,
+				lineWidth : 2,
+				curvePointFactor : 20,
+				fitPointDist : 0.0001
+			}
+		}
+	};
 
 	function init(plot) {
 
 		plot.hooks.processOptions.push(processOptions);
 
 		//if the plugin is active register draw method
-        function processOptions(plot,options) {
+		function processOptions(plot, options) {
 			if (options.series.curvedLines.active) {
 				plot.hooks.draw.push(draw);
 			}
 		}
 
-             
 		//select the data sets that should be drawn with curved lines and draws them
 		function draw(plot, ctx) {
 			var series;
@@ -126,7 +123,7 @@ _____________________________________________________
 					ctx.translate(offset.left, offset.top);
 					ctx.lineJoin = "round";
 					ctx.strokeStyle = series.color;
-                     if(series.curvedLines.fill) {
+					if (series.curvedLines.fill) {
 						var fillColor = series.curvedLines.fillColor == null ? series.color : series.curvedLines.fillColor;
 						var c = $.color.parse(fillColor);
 						c.a = typeof fill == "number" ? fill : 0.4;
@@ -142,7 +139,6 @@ _____________________________________________________
 			}
 		}
 
-        
 		//nearly the same as in the core library
 		//only ps is adjusted to 2
 		function plotLine(ctx, points, axisx, axisy, fill) {
@@ -164,12 +160,12 @@ _____________________________________________________
 				// clip with ymin
 				if (y1 <= y2 && y1 < axisy.min) {
 					if (y2 < axisy.min)
-                       continue;   // line segment is outside
+						continue;
+					// line segment is outside
 					// compute new intersection point
 					x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
 					y1 = axisy.min;
-                 }
-                 else if (y2 <= y1 && y2 < axisy.min) {
+				} else if (y2 <= y1 && y2 < axisy.min) {
 					if (y1 < axisy.min)
 						continue;
 					x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
@@ -182,8 +178,7 @@ _____________________________________________________
 						continue;
 					x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
 					y1 = axisy.max;
-                 }
-                 else if (y2 >= y1 && y2 > axisy.max) {
+				} else if (y2 >= y1 && y2 > axisy.max) {
 					if (y1 > axisy.max)
 						continue;
 					x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
@@ -196,8 +191,7 @@ _____________________________________________________
 						continue;
 					y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
 					x1 = axisx.min;
-                 }
-                 else if (x2 <= x1 && x2 < axisx.min) {
+				} else if (x2 <= x1 && x2 < axisx.min) {
 					if (x1 < axisx.min)
 						continue;
 					y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
@@ -210,8 +204,7 @@ _____________________________________________________
 						continue;
 					y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
 					x1 = axisx.max;
-                 }
-                 else if (x2 >= x1 && x2 > axisx.max) {
+				} else if (x2 >= x1 && x2 > axisx.max) {
 					if (x1 > axisx.max)
 						continue;
 					y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
@@ -237,7 +230,6 @@ _____________________________________________________
 			ctx.stroke();
 		}
 
-
 		//no real idea whats going on here code mainly from https://code.google.com/p/flot/issues/detail?id=226
 		//I don't understand what nergal computes here and to be honest I didn't even try
 		function calculateCurvePoints(data, curvedLinesOptions) {
@@ -250,30 +242,28 @@ _____________________________________________________
 				//insert a point before and after the "real" data point to force the line
 				//to have a max,min at the data point
 				var neigh = curvedLinesOptions.fitPointDist;
-            	var j=0;
+				var j = 0;
 
-  	            for(var i = 0; i < data.length; i++) {
+				for (var i = 0; i < data.length; i++) {
 
 					//smooth front
-        	          xdata[j] = data[i][0]-0.1;
+					xdata[j] = data[i][0] - 0.1;
 
 					if (i > 0) {
-  	                     ydata[j] = data[i-1][1]*neigh + data[i][1] * (1 - neigh);
+						ydata[j] = data[i-1][1] * neigh + data[i][1] * (1 - neigh);
 					} else {
 						ydata[j] = data[i][1];
 					}
 					j++;
 
-                
 					xdata[j] = data[i][0];
 					ydata[j] = data[i][1];
 					j++;
 
-                
 					//smooth back
-                  	  xdata[j] = data[i][0]+0.1;
-                  	  if ((i+1) < data.length) {
-                     	  ydata[j] = data[i+1][1]*neigh + data[i][1] * (1 - neigh);
+					xdata[j] = data[i][0] + 0.1;
+					if ((i + 1) < data.length) {
+						ydata[j] = data[i+1][1] * neigh + data[i][1] * (1 - neigh);
 					} else {
 						ydata[j] = data[i][1];
 					}
@@ -282,7 +272,7 @@ _____________________________________________________
 				}
 			} else {
 				//just use the datapoints
-				  for(var i = 0; i < data.length; i++) {
+				for (var i = 0; i < data.length; i++) {
 					xdata[i] = data[i][0];
 					ydata[i] = data[i][1];
 				}
@@ -296,9 +286,9 @@ _____________________________________________________
 			y2[n - 1] = 0;
 			delta[0] = 0;
 
-            for(var i = 1; i < n - 1; ++i) {
+			for (var i = 1; i < n - 1; ++i) {
 				var d = (xdata[i + 1] - xdata[i - 1]);
-                if(d == 0) {
+				if (d == 0) {
 					return null;
 				}
 
@@ -309,7 +299,7 @@ _____________________________________________________
 				delta[i] = (6 * delta[i] / (xdata[i + 1] - xdata[i - 1]) - s * delta[i - 1]) / p;
 			}
 
-           for(var j = n - 2; j >= 0; --j) {
+			for (var j = n - 2; j >= 0; --j) {
 				y2[j] = y2[j] * y2[j + 1] + delta[j];
 			}
 
@@ -322,16 +312,15 @@ _____________________________________________________
 			xnew[0] = xdata[0];
 			ynew[0] = ydata[0];
 
-
-           for(j = 1; j < num; ++j) {
+			for ( j = 1; j < num; ++j) {
 				xnew[j] = xnew[0] + j * step;
 
 				var max = n - 1;
 				var min = 0;
 
-               while(max - min > 1) {
+				while (max - min > 1) {
 					var k = Math.round((max + min) / 2);
-                   if(xdata[k] > xnew[j]) {
+					if (xdata[k] > xnew[j]) {
 						max = k;
 					} else {
 						min = k;
@@ -340,7 +329,7 @@ _____________________________________________________
 
 				var h = (xdata[max] - xdata[min]);
 
-               if(h == 0) {
+				if (h == 0) {
 					return null;
 				}
 
@@ -348,9 +337,9 @@ _____________________________________________________
 				var b = (xnew[j] - xdata[min]) / h;
 
 				ynew[j] = a * ydata[min] + b * ydata[max] + ((a * a * a - a) * y2[min] + (b * b * b - b) * y2[max]) * (h * h) / 6;
-//               if (ynew[j] < 0.01){
-//                   ynew[j] = 0;
-//               }
+				//               if (ynew[j] < 0.01){
+				//                   ynew[j] = 0;
+				//               }
 				result.push(xnew[j]);
 				result.push(ynew[j]);
 			}
@@ -358,20 +347,15 @@ _____________________________________________________
 			return result;
 		}
 
-
-
-
 	}//end init
 
 
 	$.plot.plugins.push({
-        init: init,
-        options: options,
-        name: 'curvedLines',
-        version: '0.2'
+		init : init,
+		options : options,
+		name : 'curvedLines',
+		version : '0.2'
 	});
 
-    
 })(jQuery);
 
-