Three-dimensional graphics are widely used in data analysis, data modeling, graphic image processing and other fields. Here, we will introduce how to use matplotlib in Python to draw 3D graphics, including 3D scatters, 3D surfaces, 3D contours, 3D lines (curves) and 3D characters.

Preparatory work:

Drawing 3D graphics in python still uses the commonly used drawing module matplotlib, but the mpl_toolkits toolkit needs to be installed. The installation method is as follows: windows command line enters the Scripts folder under python installation directory and executes: pipi install-Upgrade Matplotlib；; Execute this command directly in Linux environment.

After installing this module, you can call the mplot3d class under mpl_tookits to draw 3d graphics.

Here is an example.

1, 3D surface shape diagram

This code is to draw a 3D ellipsoid, and the result is as follows:

2. Draw 3D lines (curves)

This code is used to draw spiral 3D curves, and the results are as follows:

3. Draw a three-dimensional outline

The drawing results are as follows:

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4. Draw a three-dimensional histogram

The drawing results are as follows:

5. Draw three-dimensional grid lines

The drawing results are as follows:

6. Draw a 3D triangular patch.

The drawing results are as follows:

7. Draw a three-dimensional scatter plot

The drawing results are as follows: