Plot3D does not used current subplot

[ahwillia]

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Not sure if this is a known issue, but the following code gives me this not so nice output. (I'm currently checked out on master.)

using PyPlot
figure()
subplot(2,2,1)
plot(randn(10))
subplot(2,2,2)
plot3D(randn(10),randn(10),randn(10))

[stevengj]

All we do is to call gca(projection="3d") before the 3d plot, in the code here.

Maybe it is a Matplotlib limitation that you have to specify that you want 3d when you first create the subplots? For example, this seems to work:

fig = figure()
ax = fig[:add_subplot](222, projection="3d")
plot3D(randn(10),randn(10),randn(10))
subplot(2,2,1)
plot(randn(10))

[ahwillia]

Thanks - I was hoping for a more automatic solution, but I think you may be right that this is a limitation of matplotlib. On Jun 27, 2016 12:08 PM, "Steven G. Johnson" [email protected] wrote:

All we do is to call gca(projection="3d") before the 3d plot, in the code here https://github.com/stevengj/PyPlot.jl/blob/27f62251e62cea431a955bafc4444472f4e96fe5/src/PyPlot.jl#L439-L445 .

Maybe it is a Matplotlib limitation that you have to specify that you want 3d when you create the subplots? For example, this seems to work:

fig = figure() ax = fig[:add_subplot](222, projection="3d")plot3D(randn(10),randn(10),randn(10))subplot(2,2,1)plot(randn(10))

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/stevengj/PyPlot.jl/issues/226#issuecomment-228844219, or mute the thread https://github.com/notifications/unsubscribe/AAm20VjifaL3bRQjW85vQ_INfCank9SYks5qQB-VgaJpZM4I9z9c .

[mouryarahul]

Hi, I tried the suggestion by @stevengj , but when I execute: fig = figure(); ax = fig[:add_subplot](222, projection="3d")

I get the following error: ERROR: PyError (ccall(@pysym(:PyObject_Call), PyPtr, (PyPtr, PyPtr, PyPtr), o, arg, kw)) <class 'Val ueError'> ValueError("Unknown projection '3d'",) File "C:\Users\Rahul\Anaconda3\lib\site-packages\matplotlib\figure.py", line 1221, in add_subplot self, *args, **kwargs) File "C:\Users\Rahul\Anaconda3\lib\site-packages\matplotlib\projections\__init__.py", line 91, in process_projection_requirements projection_class = get_projection_class(projection) File "C:\Users\Rahul\Anaconda3\lib\site-packages\matplotlib\projections\__init__.py", line 65, in get_projection_class raise ValueError("Unknown projection '%s'" % projection)

However, when I use: ax = fig[:add_subplot](222) it generate 2d subplot correctly.

I'm using Julia:

versioninfo() Julia Version 0.6.3 Commit d55cadc350* (2018-05-28 20:20 UTC) Platform Info: OS: Windows (x86_64-w64-mingw32) CPU: Intel(R) Core(TM) i7-7820HK CPU @ 2.90GHz WORD_SIZE: 64 BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell) LAPACK: libopenblas64_ LIBM: libopenlibm LLVM: libLLVM-3.9.1 (ORCJIT, broadwell)

PyPlot.version v"2.2.2"

What could be workaround for this problem? In fact I'm trying to set the rotation angle of 3D plot, something equivalent to the following Python code:

import matplotlib.pyplot as plt from mpl_toolkits.mplot3d import Axes3D fig = plt.figure() ax = fig.gca(projection="3d") ax.view_init(azim=30)

How can I achieve in Julia? Thanks for your suggestions!

[stevengj]

See https://github.com/JuliaPy/PyPlot.jl#3d-plotting … you nowadays need to call using3D() before doing anything, e.g. this works:

using PyPlot
using3D()
subplot(2,2,1)
plot(randn(10))
subplot(2,2,2, projection="3d")
plot3D(randn(10),randn(10),randn(10))

[mouryarahul]

Thanks! @stevengj It works fine on Linux machine:

versioninfo() Julia Version 0.6.3 Commit d55cadc (2018-05-28 20:20 UTC) Platform Info: OS: Linux (x86_64-linux-gnu) CPU: Intel(R) Core(TM) i7-7820HK CPU @ 2.90GHz WORD_SIZE: 64 BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell) LAPACK: libopenblas64_ LIBM: libopenlibm LLVM: libLLVM-3.9.1 (ORCJIT, broadwell)

PyPlot.version v"2.2.2"

Python 3.6.5 |Anaconda, Inc.| (default, Apr 29 2018, 16:14:56) [GCC 7.2.0] on linux

However, on Windows machine with same versions, I get error:

using3D is not defined!

[stevengj]

Probably your Windows machine has an older version of the PyPlot package. Do Pkg.update() to update your packages, or run Pkg.status() to find out whether you've pinned the package version.