Plotting and Saving¶
One of the main benefits of ParticleSpy is the ability to plot particle properties natively.
The main method for plotting particle properties is plot()
.
This method plots either a histogram of any specified property or a scatter plot of two properties, as long as you have added these properties to each particle (either automatically or manually).
An example of plotting a histogram of particle areas in shown here:
>>> particles = ps.particle_analysis(data, params, mask=generated_mask)
>>> particles.plot('area', bins = 20)

In the above code it is possible to plot particle area because this is automatically calculated in the particle_analysis function.
To plot a scatter plot of two properties you simply need to specify two properties in the arguments:
>>> particles.plot(['area','circularity'])

It is also possible to plot a 3D scatter plot of three properties by specifying three properties in the argument.
Plotting of more than one particle_list can be done using the top level plot()
function:
>>> ps.plot([particles1,particles2],['area','circularity'])
All keyword arguments in matplotlib are available by passing them as arguments to the corresponding plotting function.
Plotting Radial Profiles¶
ParticleSpy provides the ability to plot a radial profile (that is an intensity profile from particle centre to edge) of image intensity or EDS signal intensity. A radial profile can be very useful for illustrating distributions in particles.
The following code shows how to plot a radial profile of image intensity.
>>> rp = ps.radial_profile(particle,['Image'],plot=True)

It is also possible to plot the intensity of certain elements from an EDS signal.
>>> rp = ps.radial_profile(particle,['Pt','Ni'],plot=True)

Saving Particle Images and Maps¶
In order to save images and maps of particles it is necessary to use Hyperspy’s save function.
>>> particles.list[0].image.save(filename)