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Sorry for the general post. Searching wasn't getting me anywhere. Has anyone ever found a good way to highlight a single point on a graph? In my case, I would like to highlight datapoints which have a comment associated with them. When a user clicks on that point on the graph, the comment pops up. It sounds simple anyway. Various attribute node attempts haven't gotten me anywhere.
You will have to superimposed two plots on the graph; one with all points and the other with only the commented points keeping their value, other points assigned a NaN value (that is not plotted). The second plot does not need interpolation and can have a larger point style or a different color.
For user selection you create a cursor that locks to the "commented" plot. Read the cursor position to retrieve the point and show its comment. Either you always show the comment associated to the cursor point or have an other boolean that the user clicks when the comment is needed. In LabVIEW you cannot easyly know when the user has clicked on a graph.
Dave Johnson a écrit dans le message : 3905e836@newsgroups.ni.com... > > Sorry for the general post. Searching wasn't getting me anywhere. Has anyone > ever found a good way to highlight a single point on a graph? In my case, > I would like to highlight datapoints which have a comment associated with > them. When a user clicks on that point on the graph, the comment pops up. > It sounds simple anyway. Various attribute node attempts haven't gotten > me anywhere. > > Thanks for the help > Dave
You can also show the cursor name and put the comment in the cursor name attribute.
In the metod I described, the cursor will snap to NaN values of the graph also, an effect that you might not want. You will have to use an XY graph to prevent this.
