How to make 3D scatter plot color bar adjust to the Z axis size?

Question

I have trying to visualize my data from pandas column as 3D scatter plot. I am facing the problem to adjust the color bar match to the exact size of my z axis.

My code :

import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D

s = pd.read_csv('FahrerVP8.out_1.csv', index_col=0)

ax = plt.figure()
three_d = ax.gca(projection='3d')
three_d1 = three_d.scatter(s['Latitude'], s['Longitude'],s['Mean_ VehicleSpeed'], c =s['Mean_ VehicleSpeed'] )
three_d.set_xlabel('Latitude')
three_d.set_ylabel('Longitude')
three_d.set_zlabel('Mean Vehicle Speed')


plt.colorbar(three_d1)
plt.show()

My Result

I want my color bar height to be adjusted with z axis height.

I'm not sure to understand what you want. Do you want to change the colors? What do you mean by "color plot to be adjust with axes"? — Adam Bellaïche, Feb 25 '19 at 10:06
1. I want color bar height to be same as like z axis height.@AdamBellaïche — Mari, Feb 25 '19 at 10:13
May be you find answer here: https://stackoverflow.com/questions/18195758/set-matplotlib-colorbar-size-to-match-graph — Adam Bellaïche, Feb 25 '19 at 10:18

score 4 · Accepted Answer · edited Nov 23 '20 at 18:38

4

One way to modify the size of your color bar is to use "shrink" axes property like this:

plt.colorbar(three_d1, shrink=0.5) # an example

But you need to find the good value by hands.It could be 0.5 like 0.7.

However, you can try to calcul the needed value of shrink by getting the size of the z axis.

edited Nov 23 '20 at 18:38

Niko Föhr

28,336
10
93
96

answered Feb 26 '19 at 11:59

Adam Bellaïche

427
3
16

How to make 3D scatter plot color bar adjust to the Z axis size?

1 Answers1