General Instructions for Creating Graphs and Figures

Examples below can be generated by plot_example.m or plot_example.py script in the Tools repository.

It's recommended to place your figures reasonably; prepare_figure function from the Tools can be used.
Do not forget to close your figures when not needed, e.g. close all figures at the beginning of your script.

matlab	python
	`import matplotlib.pyplot as plt` # assumed in every code bellow
`close all`	`plt.close( 'all' )`

Each figure should a have descriptive title. Usually should be set after other drawing commands.

matlab	python
`title( 'My title' )`	`plt.title( 'My title' )`

When necessary, a legend describing lines of different colors/styles should be added, preferably inside the plot, if possible.

matlab	python
do not use `imshow`
`image( rgb_img )` or `imagesc( grayscale_img )`	`plt.imshow( img )`
`axis image` [*] or `axis equal`	`plt.axis( 'image' )` [*] or `plt.axis( 'equal' )`

[*] This hides area outside the image.

Note that Matlab can plot greek numbers using TeX sequences ( '\\alpha', '\\beta', etc.).

matlab	python
	`from mpl_toolkits import mplot3d` # 3D facilities, import before the .pyplot
	`ax = plt.axes( projection='3d' )` # 3D axis must be explicitly created
`plot3( x, y, z, … )`	`ax.plot3D( x, y, z, … )`
`text( x, y, z, … )`	`ax.text3D( x, y, z, … )`
`axis( 'equal' )`	`plt.axis( 'equal' )`
`zlabel( 'z' );` …	`ax.set_zlabel( 'z' )` …

Bound vectors can be drawn using quiver… functions. Origin (X,Y,Z) and vector coordinates (dX,dY,dZ) must be given.

[*] The scaling argument 0 ensures the arrow is of the proper length.