Matplotlib 3.0 Cookbook

How to do it...

Here are the steps involved in plotting the required graph:

1. First, define the figure as follows:

fig = plt.figure(1, figsize=(7, 4))

2. Next, define the transformation function to convert curvilinear coordinates to rectilinear coordinates:

# Transformation Function to convert curvilinear coordinates to rectilinear coordinatesdef curv2rect_tr(x, y):    x, y = np.asarray(x), np.asarray(y)    return x, y - x 

3. Define the transformation function to convert rectilinear coordinates to curvilinear coordinates:

# Transformation Function to convert rectilinear coordinates to curvilinear coordinatesdef rect2curv_tr(x, y):    x, y = np.asarray(x), np.asarray(y)    return x, y + x

4. Define the grid_helper function, which is responsible for plotting ...