I am essentially plotting a single point then drawing a line from the origin to the plotted point. A line drawn at width of 24 creates a line with square ends. I would like the line to have rounded ends. 'marker','.' or 'o' does handle this with the marker diameter set to the same width as the line itself, however, on a line of this width it essentially falsing elongates the line since the marker is centered on the data point. The line is then visual lengthed by the amount proportional to the marker radius at each end of the line.
So my question: is there a function or way to create a thick line with rounded ends starting at the original and ending the line at the data point?