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Author: hy9be

src/plots/cartesian/set_convert.js

@@ -148,6 +148,7 @@ module.exports = function setConvert(ax, fullLayout) {
         // d2l/d2c variant that that won't add categories but will also
         // allow numbers to be mapped to the linearized axis positions
         var index;
+        // Get the index from the aux map if it was built, otherwise search the _categories array
         if(ax._categoriesMap) {
             index = ax._categoriesMap[v];
             if(index !== undefined) return index;