Apologizing up front for the lack of code snippets; our app is on an intranet. We have a page with 3 tabs: chart, table, and map. The chart is a parallel coordinate chart and we use D3's rectangle drag to allow the user to select data points. Those points are used to populate the chart and put graphics in a graphics layer on the map. The problem is that the graphics don't draw on the graphics layer; in fact, the zoom rectangle on the map doesn't draw either. No Firebug errors, and the graphics are being added to the graphics layer. Has anybody used D3 successfully with a map?