CODEWITHSUNDEEP
pythonmatplotlib
sonium
sonium

Reputation: 1062

Accurate line ends with matplotlib

Line ends not coinciding

The picture shows some graphs plotted on top of each other. The thin ones have 4 data points using the style:

plot(xdata,ydata),'|-',lw=1.5,markersize=10)

and the thick, shorter ones spanning only a subset of the data points using:

plot(xdata[-2:-1],ydata[-2:-1],'-',lw=4.5)

The thick lines are however overshooting at their ends. How can I make them end right at the data points and coincide with the markers?

Upvotes: 3

Views: 340

Answers (1)

iayork
iayork

Reputation: 6699

I think this is because the default cap style on lines is "projecting", while you need it to be "butt". If so, something like this should help: 

overlapped = plot(xdata[-2:-1],ydata[-2:-1],'-',lw=4.5)

for item in overlapped:
    item.set_solid_capstyle('butt')

Upvotes: 4

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