skew flipping improvements

src/charts/chart.js

@@ -266,7 +266,7 @@ function drawingEventWorker() {
 }
 
 function doHandleDrawingEvent(id, event) {
-    console.log('drawing event', id, event)
+    // console.log('drawing event', id, event)
     let shape
     if (event==='remove')
         shape = null

src/charts/shape.js

@@ -93,7 +93,7 @@ export class Shape {
     //
 
     setModel(model) {
-        console.log('shape setModel', model)
+        // console.log('shape setModel', model)
 
         if (model.color)
             this.model.color = model.color
@@ -261,7 +261,7 @@ export class Shape {
     }
 
     onProps(props) {  // the display properties of an existing shape were changed
-        console.log('shape onProps', this.model, props)
+        if (this.debug) console.log('shape onProps', this.model, props)
         if (props.textcolor && props.textcolor !== this.tvProps.textcolor)
             this.updateModel({color:props.textcolor})
         else if (props.linecolor && props.linecolor !== this.tvProps.linecolor)