DPlot

We are looking at DPLOT to use in an Excel VBA application.

Can DPlot differtiate points? For example we have a set of points that forms a line we would like to color code some of the points based on a flag indicating the points source.

Can the user zoom or interactive with the plot after it is created in VBA?

Can DPlot differtiate points?

With text labels yes, easily. With different colored symbols no, at least not directly. Every curve has a unique color used for all symbols and line segments. You can get around this limitation by duplicating points and using symbols only (line type="None") for the points you want to be a different color.

Can the user zoom or interactive with the plot after it is created in VBA?

If the plot is shown in DPlot, yes. If you're hiding DPlot and only showing the plot in Excel, though, no. Not unless you develop that interaction yourself.