Menu
pyplot. draw() Function. The draw() function in pyplot module of matplotlib library is used to redraw the current figure.
plt. imshow() draws an image on the current figure (creating a figure if there isn't a current figure). Calling plt. show() before you've drawn anything doesn't make any sense.
MatPlotLib with PythonPlot − Plot helps to plot just one diagram with (x, y) coordinates. Axes − Axes help to plot one or more diagrams in the same window and sets the location of the figure.
The matplotlib. pyplot is a collection of functions that make matplotlib work like MATLAB. Each pyplot function makes some change to a figure: e.g., creates a figure, creates a plotting area in a figure, plots some lines in a plotting area, decorates the plot with labels, etc.
plt.show() will display the current figure that you are working on.
plt.draw() will re-draw the figure. This allows you to work in interactive mode and, should you have changed your data or formatting, allow the graph itself to change.
The plt.draw docs state:
This is used in interactive mode to update a figure that has been altered using one or more plot object method calls; it is not needed if figure modification is done entirely with pyplot functions, if a sequence of modifications ends with a pyplot function, or if matplotlib is in non-interactive mode and the sequence of modifications ends with show() or savefig().
This seems to suggest that using plt.draw() before plt.show() when not in interactive mode will be redundant the vast majority of the time. The only time you may need it is if you are doing some very strange modifications that don't involve using pyplot functions.
Refer to the Matplotlib doc, "Interactive figures" for more information.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With