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Convert a matplotlib figure to a powerpoint slide

Project description


mplppt is a simple library made from some hacky scripts I used to use to convert matplotlib figures to powerpoint figures. Which makes this a hacky library, I guess 😀.


mplppt seeks to implement an alternative savefig function for matplotlib figures. This savefig function saves a matplotlib figure with a single axis to a powerpoint presentation with a single slide containing the figure.


pip install mplppt

Supported Conversions

mplppt supports [partly] conversion of the following matplotlib objects:

  • Lines [matplotlib.lines.Line2D]
  • Rectangles [matplotlib.patches.Rectangle]
  • Polygons [matplotlib.patches.Polygon]
  • pcolormesh [matplotlib.collections.QuadMesh]
  • text [matplotlib.text.Text]

so far mplppt does not (yet) support (out of many other things):

  • markers (including tick marks)
  • linestyle

Simple Example

An example of all different conversions available for mplppt. Below we give an example of how all these objects can be combined into a single plot, which can then be exported to powerpoint:

# plot [Line2D]
x = np.linspace(-1,5)
y = np.sin(x)

# rectangle
plt.gca().add_patch(mpl.patches.Rectangle((0, 0), 3, 0.5))

# polygon
plt.gca().add_patch(mpl.patches.Polygon(np.array([[5.0,1.0],[4.0,-0.2],[2.0,0.6]]), color="red"))

# pcolormesh
x = np.linspace(0,1, 100)
y = np.linspace(0,1, 100)
X, Y = np.meshgrid(x,y)
Z = X**2 + Y**2

# text
text = plt.text(0,0,'hello')

# set limits

# Save figure to pptx

# show figure


Which results in a powerpoint slide which looks as follows:

simple powerpoint export screenshot

Cool! What else can I do with this?

You are not bound to using matplotlib! The mplppt repository contains some standard powerpoint shapes that you can use. Try something like:

ppt = mplppt.Group() # Create a new group of objects
ppt += mplppt.Rectangle(name='rect', x=0, y=0, cx=100, cy=100, slidesize=(10,5)) # add an object to the group'second_example.pptx') # export the group as a ppt slide

Is any of this documented?


How does this work?

The repository contains a template folder, which is nothing more than an empty powerpoint presentation which is unzipped. After making a copy of the template folder and adding some xml code for the shapes, the modified folder is zipped into a .pptx file.


© Floris Laporte - MIT License

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