How do I plot a point on a graph?
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I want to plot my tau max on my Mohr's Circle graph which I was thinking was plot(C,R) but I am not getting any results. I also want it to display the value on the graph which should be 612.11
title('Mohrs Circle (1672.13 lbs)')
Robert Brown on 18 Apr 2021
Edited: Robert Brown on 18 Apr 2021
Add these lines to the bottom of your code, to plot the desired value as a red asterisk on the existing plot with the other data plotted. Then reference the plot handle "p_include", from a legend request, to get a legend with only this plot data value included. string( R) converts R to a string and assigns it as a name for the plot which plots it on the figure.
p_include = plot(C,R,'r*','DisplayName',string(R))
chances are, your added plot of C,R was being plotted as a tiny line segment, but you just couldn't see it on your plot since it only had 1 data point.
The red asterisk will make the data point show up more clearly on your plot, and the legend will contain the numerical value R of the max value
I hope this helps ! :-)