saving 3D line figure in pgf format results in error

[whymranderson]

Python 2.7, NumPy 1.7.1, SciPy 0.13.0, Matplotlib 1.3.1

Really loves the Matplotlib! And the pgf backend support!

The following code works:

import matplotlib as mpl
mpl.use('pgf')
from matplotlib import pyplot
import mpl_toolkits.mplot3d.axes3d as p3

########
fig3 = pyplot.figure(3,figsize=(6, 6))
ax3 = p3.Axes3D(fig3)
ax3.view_init(elev=40, azim=5)
ax3.set_color_cycle('b')
########

test3, = ax3.plot([ 0.   ,       0.        ],
         [ 0.   ,       6.12372436],
         [ 0.   ,       3.53553391])
test3.set_linewidth(2)
pyplot.show()
pyplot.savefig(r'testlw.pgf')

but its cousin does not:

import matplotlib as mpl
mpl.use('pgf')
from matplotlib import pyplot
import mpl_toolkits.mplot3d.axes3d as p3

########
fig3 = pyplot.figure(3,figsize=(6, 6))
ax3 = p3.Axes3D(fig3)
ax3.view_init(elev=40, azim=5)
ax3.set_color_cycle('b')
########

test3, = ax3.plot([ 0.   ,       0.        ],
         [ 0.   ,       6.12372436],
         [ 0.   ,       3.53553391], linewidth='2')

pyplot.show()

pyplot.savefig(r'testlw.pgf')

The following error will come up:
lw = gc.get_linewidth() * mpl_pt_to_in * latex_in_to_pt
TypeError: can't multiply sequence by non-int of type 'float'

The only difference is the set linewidth method. Is it something I did wrong in the second code? Both codes plot correctly, but the second code fails to save into pgf file and generates errors mentioned above. Hope someone can help. Thanks in advance!

:) Tony

[WeatherGod]

You passed it as a string instead of a numerical value.

Cheers
Ben Root
On Aug 11, 2014 11:13 PM, "whymranderson" notifications@github.com wrote:

Python 2.7, NumPy 1.7.1, SciPy 0.13.0, Matplotlib 1.3.1

Really loves the Matplotlib! And the pgf backend support!

The following code works:

import matplotlib as mpl
mpl.use('pgf')
from matplotlib import pyplot
import mpl_toolkits.mplot3d.axes3d as p3

########
fig3 = pyplot.figure(3,figsize=(6, 6))
ax3 = p3.Axes3D(fig3)
ax3.view_init(elev=40, azim=5)
ax3.set_color_cycle('b')
########

test3, = ax3.plot([ 0. , 0. ],
[ 0. , 6.12372436],
[ 0. , 3.53553391])
test3.set_linewidth(2)
pyplot.show()
pyplot.savefig(r'testlw.pgf')

but its cousin does not:

import matplotlib as mpl
mpl.use('pgf')
from matplotlib import pyplot
import mpl_toolkits.mplot3d.axes3d as p3

########
fig3 = pyplot.figure(3,figsize=(6, 6))
ax3 = p3.Axes3D(fig3)
ax3.view_init(elev=40, azim=5)
ax3.set_color_cycle('b')
########

test3, = ax3.plot([ 0. , 0. ],
[ 0. , 6.12372436],
[ 0. , 3.53553391], linewidth='2')

pyplot.show()

pyplot.savefig(r'testlw.pgf')

The following error will come up:
lw = gc.get_linewidth() * mpl_pt_to_in * latex_in_to_pt
TypeError: can't multiply sequence by non-int of type 'float'

The only difference is the set linewidth method. Is it something I did
wrong in the second code? Hope someone can help. Thanks in advance!

:) Tony

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#3361.

[whymranderson]

Wow that is embarrassing, as my first question at github. Many thanks still!

[WeatherGod]

You wouldn't believe how often that particular "bug" came up after the
introduction of the pgf backend... no problem, and keep the questions
coming!

On Mon, Aug 11, 2014 at 11:28 PM, whymranderson notifications@github.com
wrote:

Wow that is embarrassing, as my first question at github. Many thanks
still!

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#3361 (comment)
.