User Request: Graphing tool for plotting oscillation

[Denz1994]

A user at NCTM 2019 (San Diego, CA) suggested a graphing tool to plot the y position of an oscillating spring plotted over an interval of time.

Consider the MemberPotentialChart.jsin Neuron as an example, excluding the playback feature. This isn't the first time this has been suggested according to @ariel-phet so this issue has been created to track the progress of this feature.

[Denz1994]

Alternatively, we could use our Griddle library to handle this.

[Denz1994]

I did some rough experimenting with XY plotting for about 30 minutes. I was able to plot time (30 sec) along the x-axis and y position(m) along the y-axis using using XYPlot and XYDataSeries. This was just proof of concept so pardon the visuals.

   this.plot = new XYPlot( {
      minX: 0,
      maxX: 30,
      minY: 0,
      maxY: 2,
      showVerticalIntermediateLines:false
    } );
    this.series = new XYDataSeries( { color: Color.BLUE } );
    this.plot.addSeries( this.series, true );
    this.plot.x = 0;
    this.plot.y = 500;
    this.addChild( this.plot );

 step: function( dt ) {
      this.energyGraphNode.update();
      this.periodTraceNode.step( dt, this.model.playingProperty );

      // Testing plotting
      if ( this.model.firstSpring.massAttachedProperty.value && !this.model.firstSpring.massAttachedProperty.value.userControlledProperty.value ) {
        console.log( 'x = ', this.model.timerSecondsProperty.value, '\ty =', this.model.firstSpring.massAttachedProperty.value.positionProperty.value.y );
        this.series.addPoint( this.model.timerSecondsProperty.value, this.model.firstSpring.massAttachedProperty.value.positionProperty.value.y );
      }
    }

[arouinfar]

Nice @Denz1994! Glad to see you got the graph hooked up.

I'll tag for design meeting. Perhaps this is something @kathy-phet, @ariel-phet, and I can review in an upcoming brainstorming meeting.

[ariel-phet]

Received another request for this feature today on twitter - might be worth considering after BAM