1 files changed, 69 insertions, 0 deletions
diff --git a/js/dojo-1.7.2/dojox/drawing/util/positioning.js b/js/dojo-1.7.2/dojox/drawing/util/positioning.js
new file mode 100644
index 0000000..13afcad
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+++ b/js/dojo-1.7.2/dojox/drawing/util/positioning.js
@@ -0,0 +1,69 @@
+//>>built
+// wrapped by build app
+define("dojox/drawing/util/positioning", ["dijit","dojo","dojox"], function(dijit,dojo,dojox){
+dojo.provide("dojox.drawing.util.positioning");
+
+(function(){
+	
+	var textOffset = 4;  // distance from line to text box
+	var textYOffset = 20;  // height of text box
+	
+	
+	dojox.drawing.util.positioning.label = function(/*Object*/start, /*Object*/end){
+		// summary:
+		//		Returns the optimal text positions for annotations.Label.
+		
+		// label at middle of vector
+		var x = 0.5*(start.x+end.x);
+		var y = 0.5*(start.y+end.y);
+		
+		// move label a set distance from the line
+		var slope = dojox.drawing.util.common.slope(start, end);
+		var deltay = textOffset/Math.sqrt(1.0+slope*slope);
+		
+		if(end.y>start.y && end.x>start.x || end.y<start.y && end.x<start.x){
+			// Position depending on quadrant.  Y offset
+			// positions box aligned vertically from top
+			deltay = -deltay;
+			y -= textYOffset;
+		}
+		x += -deltay*slope;
+		y += deltay;
+		
+		// want text to be away from start of vector
+		// This will make force diagrams less crowded
+		var align = end.x<start.x ? "end" : "start";
+		
+		return { x:x, y:y, foo:"bar", align:align}; // Object
+	};
+	
+	dojox.drawing.util.positioning.angle = function(/*Object*/start, /*Object*/end){
+		// summary:
+		//		Returns the optimal position for annotations.Angle.
+		//
+		// angle at first third of vector
+	        var x = 0.7*start.x+0.3*end.x;
+	        var y = 0.7*start.y+0.3*end.y;
+		// move label a set distance from the line
+		var slope = dojox.drawing.util.common.slope(start, end);
+		var deltay = textOffset/Math.sqrt(1.0+slope*slope);
+		
+		if(end.x<start.x){deltay = -deltay;}
+		x += -deltay * slope;
+		y += deltay;
+		
+		// want text to be clockwise from vector
+		// to match angle measurement from x-axis
+		var align = end.y>start.y ? "end" : "start";
+	        // box vertical aligned from middle
+	        y += end.x > start.x ? 0.5*textYOffset :  -0.5*textYOffset;
+		
+		return { x:x, y:y, align:align}; // Object
+	}
+	
+})();
+
+
+
+
+});