It would be simpler to record the actual data value and have FileMaker display the data on a chart. But each point position on your graph might be set up as a button that you can click for logging information. That could be a fairly complex interface to design...
The problem is that anesthetists love the graphic display, so I am seeking "skeuomorphism" - it would be easier to just have a table, of course.
I think it would go like this - user taps (or clicks) a button, is prompted to enter an observation of BP, pulse, O2 sat, etc – e.g. 120/80, 72, 98 (or the data is obtained at appropriate intervals via a connection to the monitor). This is then applied to the graph (and this is where the challenge is for me). The data I just gave represents 4 data points - systolic BP, diastolic BP, pulse, saturation.
1. Would it be a separate graph for each data point, with the 4 graphs overlaid on each other (if that is even possible)?
2. If you did each graph as a scatter plot, with no connecting lines, it seems to me you could use a different marker for each one - a "^" for diastolic, (I don't know what symbol would represent the opposite of that, to use for Systolic), a solid dot for pulse, an open dot for Saturation, etc.
3. So - 4 (or more) graphs, each overlaid on the other, with only the data points showing through. They could all have the same x - time, and the same y - 220 for the maximum, 0 as the minimum. The bottom (or top) graph would have visible background lines, or all of them would be sitting on top of a background picture with the squares. Can that be done?
Thanks for all your help!
I just realized - as long as the x and y axes are the same for all of the observations, I could do this via some type of "stacked" chart, right? I am going to try that while I am waiting for the wisdom....;>)
I did it! If you are interested, please take a look at the screenshot I am attaching. So - I got the chart to work, given the data I put in the OBSERVATIONS table.
However, I want the x-axis to use 5-minute increments like the record above. How do I do that?
This is fun!
I'm looking at a similar problem. I'd love to know how you did this. Are you entering data on the iPad?