Adjust starting plots

Author: VeraZab

examples/simple/src/App.js

@@ -24,7 +24,7 @@ class App extends Component {
     // overwritten with a full DOM node that contains data, layout, _fullData,
     // _fullLayout etc in handlePlotUpdate()
     const graphDiv = {
-      data: [{type: 'scatter', xsrc: 'col1', ysrc: 'col2'}],
+      data: [{type: 'scatter', xsrc: 'col1', ysrc: 'col2', mode: 'markers'}],
       layout: {title: 'Room readings'},
     };
 

src/PlotlyEditor.js

@@ -93,7 +93,7 @@ class PlotlyEditor extends Component {
         if (this.props.onAddTrace) {
           this.props.onAddTrace(payload);
         }
-        graphDiv.data.push({x: [], y: []});
+        graphDiv.data.push({x: [], y: [], type: 'scatter', mode: 'markers'});
         if (this.props.onUpdate) {
           this.props.onUpdate();
         }