Calculate area of polygon given (x,y) coordinates
I have a set of points and would like to know if there is a function (for the sake of convenience and probably speed) that can calculate the area enclosed by a set of points.
coordinates
Inline labels in Matplotlib
In Matplotlib, it’s not too tough to make a legend (example_legend(), below), but I think it’s better style to put labels right on the curves being plotted (as in example_inline(), below). This can be very fiddly, because I have to specify coordinates by hand, and, if I re-format the plot, I probably have to reposition the labels. Is there a way to automatically generate labels on curves in Matplotlib? Bonus points for being able to orient the text at an angle corresponding to the angle of the curve.