【发布时间】:2016-11-23 12:05:55
【问题描述】:
我尝试在 jupyter notebook 中使用 mayavi 渲染卷来测试下面的示例
from mayavi import mlab
mlab.init_notebook()
x, y, z = np.ogrid[-10:10:20j, -10:10:20j, -10:10:20j]
s = np.sin(x*y*z)/(x*y*z)
mlab.pipeline.volume(mlab.pipeline.scalar_field(s))
我收到了错误:
Notebook initialized with x3d backend.
--------------------------------------------------------------------------- AttributeError Traceback (most recent call last) /Users/phan/anaconda/lib/python2.7/site-packages/IPython/core/formatters.pyc in __call__(self, obj)
309 method = get_real_method(obj, self.print_method)
310 if method is not None:
--> 311 return method()
312 return None
313 else:
/Users/phan/anaconda/lib/python2.7/site-packages/mayavi/tools/notebook.pyc in _repr_html_(self)
58 return scene_to_png(scene)
59 elif _backend == 'x3d':
---> 60 return scene_to_x3d(scene)
61
62
/Users/phan/anaconda/lib/python2.7/site-packages/mayavi/tools/notebook.pyc in scene_to_x3d(scene)
91 else:
92 url_base = "http://www.x3dom.org/download"
---> 93 x3d_elem = _fix_x3d_header(ex.output_string)
94 html = '''
95 %s
/Users/phan/anaconda/lib/python2.7/site-packages/mayavi/tools/notebook.pyc in _fix_x3d_header(x3d)
70 rep += '>'
71
---> 72 x3d = x3d.replace(
73 '<X3D profile="Immersive" version="3.0">',
74 rep
AttributeError: 'NoneType' object has no attribute 'replace'
Out[39]: <mayavi.modules.volume.Volume at 0x132e605f0>
我在 anaconda 中安装了 Python 2.7、VTK 6.3、trait 4.6。
【问题讨论】:
-
在使用 mayavi x3d 模式时,Python 3.7 也存在同样的问题(否则 ipy 模式的视觉效果会更快更好)。网格渲染工作正常,体积渲染失败并出现此错误,显然是由 x3d 没有输出造成的。
标签: python jupyter-notebook mayavi