NickB Posted July 7, 2020 Share Posted July 7, 2020 I am using XY plot to trend 2 channels, I am needing to run a set condition and generate the plot. I have this functioning well. The next step would be to hold this data on the plot, make adjustments to my conditions and generate the next plot on the same graph without showing the collected data while changing conditions. Additionally I would like to change trend color as well for each curve. Is this possible? To further enhance the display, is there a way to add annotations on the fly or select from a drop down menu the prescribed operating conditions? Quote Link to comment Share on other sites More sharing options...
AzeoTech Posted July 7, 2020 Share Posted July 7, 2020 You'd have to make a copy of the data. So if your X/Y was plotting channelX vs channelY, you could do something like: global chanXData = channelX global chanYData = channelY then plot chanXData vs chanYData. Then do channelX.clearHistory() and channelY.clearHistory() before each run to start anew. The best way to handle this in script, if you expect to do this several times, is to actually use an object: class CData local XData local YData endclass Then instead of what I did above, create a global variable called "PlotData". Then for each run: private newData = new(CData) newData.xdata = channelX newData.ydata = channelY PlotData.append(newData) channelX.ClearHistory() channelY.ClearHistory() Now you can plot: PlotData[0].xdata vs plotData[0].ydata and change the 0 to other numbers as you accumulate more data sets. This allows you to dynamically add/remove data sets. Just add some script to add new traces on the fly too. Quote Link to comment Share on other sites More sharing options...
NickB Posted July 9, 2020 Author Share Posted July 9, 2020 Can you help with the syntax to add traces with the data from plotData variable? I am not understanding how to get this. Here is my sequence class CData local xData local yData endclass private newData = new(CData) newData.xData = AIN2 newData.yData = AIN1 PlotData.append(newData) AIN2.ClearHistory() AIN1.ClearHistory() component.Graph2D.AddTrace ("test1") component.Graph2D.test1.strYExpression = ???? component.Graph2D.test1.strXExpression = ???? Quote Link to comment Share on other sites More sharing options...
AzeoTech Posted July 14, 2020 Share Posted July 14, 2020 PlotData will become an array of CData objects over time, so you'll have to create multiple traces. But to start, if you only have the code above, it would be: component.Graph2D.test1.strYExpression = "plotData[0].ydata" component.Graph2D.test1.strXExpression = "plotData[0].xdata" Once you have more data sets, you'll have to create more traces, then index into plotData to access the different data sets. Quote Link to comment Share on other sites More sharing options...
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