title: How do I get a chart to redraw itself when the model is paused?
body: <p>I have a Time Stack Chart whose data set can be changed by clicking on a radio button. While the model is running, the chart instantaneously updates its appearance when a radio button is clicked. When the model is paused, however, the chart's area becomes blank when a radio button is clicked; the legend, in contrast, updates automatically. How do I manually force the chart area to redraw itself?</p>