fix(parallel): calculate axis extent after processing series extents

Author: jackhickson

src/coord/parallel/Parallel.ts

@@ -185,9 +185,14 @@ class Parallel implements CoordinateSystemMaster, CoordinateSystem {
             each(this.dimensions, function (dim) {
                 const axis = this._axesMap.get(dim);
                 axis.scale.unionExtentFromData(data, data.mapDimension(dim));
-                axisHelper.niceScaleExtent(axis.scale, axis.model);
             }, this);
         }, this);
+
+        // do after all series processed
+        each(this.dimensions, function (dim) {
+            const axis = this._axesMap.get(dim);
+            axisHelper.niceScaleExtent(axis.scale, axis.model);
+        }, this);
     }
 
     /**