disabled hovering on stackedArea chart when the point has 0 value.. or very close to 0

nv.d3.js

@@ -2634,6 +2634,12 @@ nv.models.stackedAreaWithLegend = function() {
       */
 
       stacked.dispatch.on('pointMouseover.tooltip', function(e) {
+        //disable tooltips when value ~= 0
+        if (!Math.round(getY(e.point) * 100)) {  // 100 will not be good for very small numbers... will have to think about making this valu dynamic, based on data range
+          setTimeout(function() { d3.selectAll('.point.hover').classed('hover', false) }, 0);
+          return false;
+        }
+
         dispatch.tooltipShow({
           point: e.point,
           series: e.series,

src/models/stackedAreaWithLegend.js

@@ -124,6 +124,12 @@ nv.models.stackedAreaWithLegend = function() {
       */
 
       stacked.dispatch.on('pointMouseover.tooltip', function(e) {
+        //disable tooltips when value ~= 0
+        if (!Math.round(getY(e.point) * 100)) {  // 100 will not be good for very small numbers... will have to think about making this valu dynamic, based on data range
+          setTimeout(function() { d3.selectAll('.point.hover').classed('hover', false) }, 0);
+          return false;
+        }
+
         dispatch.tooltipShow({
           point: e.point,
           series: e.series,