>> I am trying to create a line graph where the X axis is a zoomable >> TDateTime>> value and I believe that I need to use a >> DateTimeIntervalChartSource>> However, I cannot seem to work out how to add >> values to it.
You don't have to. The DateTimeIntervalChartSource gets the values from the axis it is assigned to. Here's what you have to do: * Set up your chart as usual * Add a TDateTimeIntervalChartSource. If you want to have the date/times along the x axis select Chart.BottomAxis.Marks.Source to point to it. Also, set Chart.BottomAxis.Marks.Style to smsLabel. In general, use the axis at which you want to have the date/times. * You may want to play with its properties a bit to optimize its output. For example increase Intervals.MinLength and/or MaxLength to avoid overlapping of labels. * To be honest I don't fully understand the effect of the Steps property. I have the feeling that you have to turn off those options which you don't want to have in the labels. --- Alle Postfächer an einem Ort. Jetzt wechseln und E-Mail-Adresse mitnehmen! Rundum glücklich mit freenetMail
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