When my application displays a graph of live data, I must first fetch the previous (variable time period) data to pre-load the graph before I start to plot the live data.
Is this possible with ChartDirector's real time graphs?
In fact, my best case would be that it is possible, AND I could use the same graph to display ONLY historical data.
I've tried to understand the documentation for using these in the past (CD v5.1) but never figured it out enough to make anything work with my stuff. It doesn't help that I'm a C programmer, trying to build my own C interface calls to the library's C++ functionality. Luckily, my live data is VERY slow (typically one new value every few seconds) so I don't have any performance issues on the plotting side.
If anyone feels like answering/explaining how they got something like I need to work, thanks! If not, I can understand the reluctance. |
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Pre-Load Live Graph with historical data?