Merge branch 'master' into production

ChartJSEnhancements.js

@@ -188,8 +188,8 @@ export default class ChartJSEnhancements {
                     let j = 0;
                     for (let i = 0; i < this.datasets.length; ++i) {
                         let dataset = this.datasets[i];
-                        for (let index = 0; index < this.datasets.length; ++index) {
-                            let datum = this.datasets[index];
+                        for (let index = 0; index < dataset.data.length; ++index) {
+                            let datum = dataset.data[index];
                             const is_inside = datum.x <= x_min_max_data.max && datum.x >= x_min_max_data.min &&
                                 datum.y <= y_min_max_data[dataset.yAxisID].max && datum.y >= y_min_max_data[dataset.yAxisID].min;
                             datum.index = index;

README.md

@@ -29,6 +29,13 @@ mouse_buttons = {
 */
 ```
 
+### Default behavior
+
+ - Click, hold and drag on the plot area to create a select region;
+ - Double click on canvas to reset zoom and pan;
+ - Use the mouse wheel to zoom;
+ - Hold shift and drag the chart to pan.
+
 ### Methods:
 
 ```javascript
@@ -46,3 +53,7 @@ resetZoom(update, update_options); //boolean that says if the chart is going to
 removeEventListeners(); //removes all event listeners added by this plugin
 destroy(); //remove all external references
 ```
+
+### Limitations
+
+ - For now, this plugin only works for linear x axis type.