hova2010 Posted October 8, 2009 Report Share Posted October 8, 2009 Hello I am using a Waveform Chart with LV 8.5.1 At each 1 minute interval, I would like to add a vertical line to the Waveform Chart. Does anyone know how to do this? thanks LV 8.5.1 J Quote Link to comment
Grampa_of_Oliva_n_Eden Posted October 8, 2009 Report Share Posted October 8, 2009 Hello I am using a Waveform Chart with LV 8.5.1 At each 1 minute interval, I would like to add a vertical line to the Waveform Chart. Does anyone know how to do this? thanks LV 8.5.1 J Have you tried... Property node>>> XScale >>> MarkerValues[] ? Ben Quote Link to comment
hova2010 Posted October 8, 2009 Author Report Share Posted October 8, 2009 Yes, Ive tried that method. Problem is I need an example of how its supposed to be used. I couldnt get that to work. I would need a picture or a VI Im using LV 8.5.1 J Quote Link to comment
Grampa_of_Oliva_n_Eden Posted October 8, 2009 Report Share Posted October 8, 2009 Yes, Ive tried that method. Problem is I need an example of how its supposed to be used. I couldnt get that to work. I would need a picture or a VI Im using LV 8.5.1 J These threads on the Dark-Side may help. http://forums.ni.com/ni/board/message?board.id=170&view=by_date_ascending&message.id=394132#M394132 http://forums.ni.com/ni/board/message?board.id=170&view=by_date_ascending&message.id=434723#M434723 Ben Quote Link to comment
hova2010 Posted October 8, 2009 Author Report Share Posted October 8, 2009 These threads on the Dark-Side may help. http://forums.ni.com...=394132#M394132 http://forums.ni.com...=434723#M434723 Ben Hey Ben Your examples are a little different...I don't need to space each marker line by a specific length. I have time stamps on each of my x scale grid lines I want to ADD a specific grid line for each 60sec interval.......as a visual reference during the test Maybe this "added" grid line would be red in color to distinguish it from the time stamp grid lines (yellow) I have attached an example with my time stamp grid lines (yellow)...now I just want to ADD a vertical marker (red) where the time expires. J how do I add a marker to the graph at the expiration time.vi Quote Link to comment
hova2010 Posted October 8, 2009 Author Report Share Posted October 8, 2009 Hey Ben Your examples are a little different...I don't need to space each marker line by a specific length. I have time stamps on each of my x scale grid lines I want to ADD a specific grid line for each 60sec interval.......as a visual reference during the test Maybe this "added" grid line would be red in color to distinguish it from the time stamp grid lines (yellow) I have attached an example with my time stamp grid lines (yellow)...now I just want to ADD a vertical marker (red) where the time expires. J I just winded up making a reference with a point transition on my graph....it serves the purpose thanks for your help though Quote Link to comment
hova2010 Posted October 8, 2009 Author Report Share Posted October 8, 2009 Found a better way to add a line/bar to the Waveform Chart at a specified interval.... Add a plot in the legend you want to use as your Interval line symbol...and give it a color Then right click on its Chart legend & choose the plot to be a "Bar Plot" from the 2nd row of choices (any one that looks like a bar graph) In the "Fill BaseLine" option choose -Infinity , (minus infinity) for the plot. In your code, find where your interval counter ends. You will then wire your plots to a cluster, then to the Waveform Chart. Example: In my app, I had a 3 plots of single Data wired to a 3 position cluster, then to the Waveform Chart. Before the interval expires: Plot 1 is my "Interval Line", I gave it a value of "-2" .....initially so it doesnt appear on the chart. I Let Plots 2 & 3 be their real time values After the interval expires: Create another cluster with the same plots wired to a Waveform Chart Local Variable Now for Plot 1, set it to some +positive value, e.g. "3" ( value of "3" , really means amplitude of "3" to the Waveform chart). Plots 2 & 3, I gave them negative values to not appear on my graph. So when the interval expires, you will only see a straight bar with amplitude of "3"....appearing like a separator "line" The "3" is arbitrary...just set it at some value appear to look like a line on your chart....also my scale strarts a "0"...no negative #'s are shown Quote Link to comment
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