On 19/11/17 20:14, Stephen P. Molnar wrote:

In all candor, I don't have the faintest idea as to whst the problem (or problens) might be and would greatly appreciate a pointer towards the solution.

You really need to post the entire error message not just the summary line.

Especially since you don't appear to access _draw_solid in your own code so we need to see where that arises.

Here it is:

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Multiple_Plots_2_b.py

Copyright (c) 2017 Stephen P. Molnar, Ph.D.  All rights reserved.

"""
import numpy as np
from mpl_toolkits.axes_grid1 import host_subplot
import mpl_toolkits.axisartist as AA
import matplotlib.pyplot as plt

data = []
name = input("Enter Molecule ID: ")

name_in = name+'_poutput'
data = np.genfromtxt(name_in)

s = data[:,0]
FTm = data[:,1]     #atomic number
FTe = data[:,2]     #atomic mass
FTc = data[:,3]     #atom electron density


fig = plt.figure(figsize=(7.6,4))

host = host_subplot(111, axes_class=AA.Axes)
plt.subplots_adjust(right=0.75)

par1 = host.twinx()
par2 = host.twinx()

offset = 60
new_fixed_axis = par2.get_grid_helper().new_fixed_axis
par2.axis["right"] = new_fixed_axis(loc="right", axes=par2,
                                         offset=(offset, 0))

par2.axis["right"].toggle(all=True)

host.set_xlim(0, 30)
"""
host.set_ylim(min(FTm), max(FTm))
"""

host.set_xlabel("Distance ($\AA$)")
host.set_ylabel("Atomic Number")
par1.set_ylabel("Atom Mass")
par2.set_ylabel("Atom Electron Density")

p1, = host.plot(data[:,0], data[:,1])#, label="Atomic Number")
p2, = par1.plot(data[:,0], data[:,2])#, label="Atom Mass")
p3, = par2.plot(data[:,0], data[:,3])#, label="Atom Electron Density")

"""
par1.set_ylim(min(FTe), max(FTe))
par2.set_ylim(min(FTc),max(FTc))
"""

#host.legend()

host.axis["left"].label.set_color(p1.get_color())
par1.axis["right"].label.set_color(p2.get_color())
par2.axis["right"].label.set_color(p3.get_color())

host.title.set_text('Molecule {0} - Molecular Transforms'.format(name))
plt.draw()
plt.show()

name_plt = name+'-fig1.png'
fig.savefig(name_plt,bbox_inches='tight')




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