VTK textures broken

[banesullivan]

Looks like there is a typo in the VTK render window converter code when handling textures:

import vtki
vtki.set_plot_theme('document')
from vtki import examples

def display(p):
    import panel
    panel.extension('vtk')
    from panel.pane import VTK as panel_display
    return panel_display(p.ren_win)

# Load some sample data that will render with a texture
data = examples.load_globe()

p = vtki.Plotter(notebook=False, off_screen=True)
p.add_mesh(data)
p.show(auto_close=False)
display(p)

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
~/anaconda3/envs/dev/lib/python3.7/site-packages/IPython/core/formatters.py in __call__(self, obj, include, exclude)
    968 
    969             if method is not None:
--> 970                 return method(include=include, exclude=exclude)
    971             return None
    972         else:

~/anaconda3/envs/dev/lib/python3.7/site-packages/panel/viewable.py in _repr_mimebundle_(self, include, exclude)
    254         doc = _Document()
    255         comm = state._comm_manager.get_server_comm()
--> 256         model = self.get_root(doc, comm)
    257         if config.embed:
    258             embed_state(self, model, doc,

~/anaconda3/envs/dev/lib/python3.7/site-packages/panel/pane/base.py in get_root(self, doc, comm)
    185         doc = doc or _curdoc()
    186         if self._updates:
--> 187             root = self._get_model(doc, comm=comm)
    188         else:
    189             root = self.layout._get_model(doc, comm=comm)

~/anaconda3/envs/dev/lib/python3.7/site-packages/panel/pane/vtk.py in _get_model(self, doc, root, parent, comm)
    354             VTKPlot = getattr(sys.modules['panel.models.vtk'], 'VTKPlot')
    355 
--> 356         data = self._get_vtkjs()
    357         props = self._process_param_change(self._init_properties())
    358         model = VTKPlot(data=data, **props)

~/anaconda3/envs/dev/lib/python3.7/site-packages/panel/pane/vtk.py in _get_vtkjs(self)
    376             vtkjs = base64.b64encode(self.object.read()).decode('utf-8')
    377         else:
--> 378             vtkjs = self._vtksjs_from_render_window(self.object)
    379         return vtkjs
    380 

~/anaconda3/envs/dev/lib/python3.7/site-packages/panel/pane/vtk.py in _vtksjs_from_render_window(self, render_window)
    542         # Save texture data if any
    543         for key, val in textureToSave.items():
--> 544             _write_data_set(val, None, newDSName=key, compress=doCompressArrays)
    545 
    546         activeCamera = renderer.GetActiveCamera()

TypeError: _write_data_set() missing 1 required positional argument: 'colorArrayInfo'

[banesullivan]

Fixed in #355