There are several ways you could go about doing it, though nothing built in to support it.
One way would be to make your data so that 30 is actually 0 in the underlying data. You'd write an axis label function that would add 30 to the values for labelling. If you wanted datahints, you'd have to write a function to do the same for them. Then you'd set the major tick interval really high so that you'd only ever get a single grid line at your fake 0 point. Another way would be to create a ChartElement that just draws a line at 30 and stick it in the BackgroundElements, along with a GridLines that is set to horizontal only (if thats what you want). On Mon, Sep 8, 2008 at 10:26 AM, kirilminevgroups < [EMAIL PROTECTED]> wrote: > I need to have only one of my vertical lines on my plot chart. For > example when plotting my data points I need to make only the line on > 30 visible on my grid and the rest hidden. Can that be accomplished. > > Technically I need to have one cross on my plot chart and all the > points plotted around it. > > Thanks in advance. > > > -- Jason

