Adjust arrow position and length

bubdm · Jun 30, 2016 · 1aee4c9 · 1aee4c9
1 parent 119cf98
commit 1aee4c9
Showing 1 changed file with 7 additions and 6 deletions.
diff --git a/the-graph/the-graph-edge.js b/the-graph/the-graph-edge.js
@@ -238,6 +238,13 @@
         return [x1, y1];
       };
 
+      var arrowLength = 12;
+      // Which direction should arrow point
+      if (plus[0] > minus[0]) {
+        arrowLength *= -1;
+      }
+      center = findLinePoint(center[0], center[1], m, b, -1*arrowLength/2);
+
       // find points of perpendicular line length l centered at x,y
       var perpendicular = function (x, y, oldM, l) {
         var m = -1/oldM;
@@ -247,12 +254,6 @@
         return [point1, point2];
       };
 
-      var arrowLength = 15;
-      // Which direction should arrow point
-      if (plus[0] > minus[0]) {
-        arrowLength *= -1;
-      }
-
       var points = perpendicular(center[0], center[1], m, arrowLength * 0.9);
       // For m === 0, figure out if arrow should be straight up or down
       var flip = plus[1] > minus[1] ? -1 : 1;