[vtkusers] Stream the output of vtkrenderwindow to a HTML5 browser
Mengda Wu
wumengda at gmail.com
Sun Nov 15 19:01:43 EST 2015
Hi Sebastien,
Thanks a lot for your reply. I think it might be some simple errors:
(1) File "C:\Library\VTK\VTK-6.3.0\
Build\Wrapping\Python\twisted\python\co
mpat.py", line 364, in networkString
raise TypeError("Can only pass-through bytes on Python 2")
exceptions.TypeError: Can only pass-through bytes on Python 2
(2) File
"C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\python\fi
lepath.py", line 828, in open
return open(self.path, mode + 'b')
IOError: [Errno 2] No such file or directory:
'C:\\Library\\VTK\\VTK-6.3
.0\\Build\\Wrapping\\Python\\twisted\\web\\failure.xhtml'
Here are the files under VTK-6.3.0\Build\Wrapping\Python\twisted:
C:\Library\VTK\VTK-6.3.0\Build\bin\Release>dir
C:\Library\VTK\VTK-6.3.0\Build\Wr
apping\Python\twisted
Volume in drive C is OS
Volume Serial Number is 2400-6FCB
Directory of C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted
11/15/2015 03:05 PM <DIR> .
11/15/2015 03:05 PM <DIR> ..
11/15/2015 03:05 PM <DIR> application
11/15/2015 03:05 PM <DIR> conch
09/01/2015 04:44 PM 1,507 copyright.py
11/15/2015 03:05 PM 1,630 copyright.pyc
11/15/2015 03:05 PM 1,630 copyright.pyo
11/15/2015 03:05 PM <DIR> cred
11/15/2015 03:05 PM <DIR> enterprise
11/15/2015 03:05 PM <DIR> internet
11/15/2015 03:05 PM <DIR> lore
11/15/2015 03:05 PM <DIR> mail
11/15/2015 03:05 PM <DIR> manhole
11/15/2015 03:05 PM <DIR> names
11/15/2015 03:05 PM <DIR> news
11/15/2015 03:05 PM <DIR> pair
11/15/2015 03:05 PM <DIR> persisted
09/01/2015 04:44 PM 8,534 plugin.py
11/15/2015 03:05 PM 8,080 plugin.pyc
11/15/2015 03:05 PM 8,080 plugin.pyo
11/15/2015 03:05 PM <DIR> plugins
11/15/2015 03:05 PM <DIR> positioning
11/15/2015 03:05 PM <DIR> protocols
11/15/2015 03:05 PM <DIR> python
11/15/2015 03:05 PM <DIR> runner
11/15/2015 03:05 PM <DIR> scripts
11/15/2015 03:05 PM <DIR> spread
11/15/2015 03:05 PM <DIR> tap
11/15/2015 03:05 PM <DIR> test
11/15/2015 03:05 PM <DIR> topfiles
11/15/2015 03:05 PM <DIR> trial
11/15/2015 03:05 PM <DIR> web
11/15/2015 03:05 PM <DIR> words
09/01/2015 04:44 PM 266 _version.py
11/15/2015 03:05 PM 352 _version.pyc
11/15/2015 03:05 PM 352 _version.pyo
09/01/2015 04:44 PM 2,152 __init__.py
11/15/2015 03:05 PM 2,018 __init__.pyc
11/15/2015 03:05 PM 2,018 __init__.pyo
12 File(s) 36,619 bytes
27 Dir(s) 60,059,516,928 bytes free
On Sun, Nov 15, 2015 at 4:52 PM, Sebastien Jourdain <
sebastien.jourdain at kitware.com> wrote:
> Oops sorry miss read the issue.
>
> VTK-Web is actually disabled on Windows as Twisted require an external
> library (api32.dll, I think).
> It is possible to make it run on Windows but not really validated and
> tested.
>
> You will have to install that dependency on your system.
>
> Moreover, could you list the content of that directory? (I want to make
> sure Twisted get installed on your system)
>
> C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\
>
> Seb
>
>
> On Sun, Nov 15, 2015 at 3:43 PM, Sebastien Jourdain <
> sebastien.jourdain at kitware.com> wrote:
>
>> It seems that you have a twisted version installed inside your system
>> Python that conflict with the one provided within VTK.
>>
>> On Sun, Nov 15, 2015 at 2:38 PM, Mengda Wu <wumengda at gmail.com> wrote:
>>
>>> Hi Sebastien,
>>>
>>> Thanks a lot for your reply. I just tried vtk-web with the Cone
>>> application. But I got some errors when I tested. I used Python 2.7.7 and
>>> VTK 6.3.0. I am not sure what's wrong.
>>>
>>> C:\Library\VTK\VTK-6.3.0\Build\bin\Release>.\vtkpython.exe
>>> C:\Library\VTK\VTK-6.
>>> 3.0\Build\Wrapping\Python\vtk\web\vtk_web_cone.py --content
>>> C:\Library\VTK\VTK-6
>>> .3.0\Build\www\ --port 3800
>>> 2015-11-15 15:35:00-0500 [-] Log opened.
>>> 2015-11-15 15:35:01-0500 [-] Site starting on 3800
>>> 2015-11-15 15:35:01-0500 [-] Starting factory <twisted.web.server.Site
>>> instance
>>> at 0x0000000003E47F48>
>>> 2015-11-15 15:35:09-0500 [HTTPChannel,0,127.0.0.1] Unhandled Error
>>> Traceback (most recent call last):
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\protocols
>>> \basic.py", line 571, in dataReceived
>>> why = self.lineReceived(line)
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\http.
>>> py", line 1656, in lineReceived
>>> self.allContentReceived()
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\http.
>>> py", line 1731, in allContentReceived
>>> req.requestReceived(command, path, version)
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\http.
>>> py", line 827, in requestReceived
>>> self.process()
>>> --- <exception caught here> ---
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\serve
>>> r.py", line 189, in process
>>> self.render(resrc)
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\serve
>>> r.py", line 238, in render
>>> body = resrc.render(self)
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\resou
>>> rce.py", line 250, in render
>>> return m(request)
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\stati
>>> c.py", line 631, in render_GET
>>> producer.start()
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\stati
>>> c.py", line 710, in start
>>> self.request.registerProducer(self, False)
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\http.
>>> py", line 873, in registerProducer
>>> self.transport.registerProducer(producer, streaming)
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\internet\
>>> abstract.py", line 112, in registerProducer
>>> producer.resumeProducing()
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\stati
>>> c.py", line 720, in resumeProducing
>>> self.request.write(data)
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\serve
>>> r.py", line 217, in write
>>> http.Request.write(self, data)
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\http.
>>> py", line 1002, in write
>>> value = networkString('%s' % (value,))
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\python\co
>>> mpat.py", line 364, in networkString
>>> raise TypeError("Can only pass-through bytes on Python 2")
>>> exceptions.TypeError: Can only pass-through bytes on Python 2
>>>
>>> 2015-11-15 15:35:09-0500 [HTTPChannel,0,127.0.0.1] Unhandled Error
>>> Traceback (most recent call last):
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\serve
>>> r.py", line 321, in processingFailed
>>> % webutil.formatFailure(reason))
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\util.
>>> py", line 425, in formatFailure
>>> flattenString(None,
>>> FailureElement(myFailure)).addBoth(result.append
>>> )
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\_flat
>>> ten.py", line 420, in flattenString
>>> d = flatten(request, root, io.write)
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\_flat
>>> ten.py", line 402, in flatten
>>> _writeFlattenedData(state, write, result)
>>> --- <exception caught here> ---
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\_flat
>>> ten.py", line 359, in _writeFlattenedData
>>> element = state.next()
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\_flat
>>> ten.py", line 326, in _flattenTree
>>> raise FlattenerError(e, roots, extract_tb(exc_info()[2]))
>>> twisted.web.error.FlattenerError: Exception while flattening:
>>> <twisted.web.util.FailureElement object at 0x0000000003ED3240>
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\_flat
>>> ten.py", line 317, in _flattenTree
>>> element = stack[-1].next()
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\_flat
>>> ten.py", line 286, in _flattenElement
>>> result = root.render(request)
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\_elem
>>> ent.py", line 184, in render
>>> return loader.load()
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\templ
>>> ate.py", line 465, in load
>>> self._loadedTemplate = self._loadDoc()
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\web\templ
>>> ate.py", line 446, in _loadDoc
>>> f = self._path.open('r')
>>> File
>>> "C:\Library\VTK\VTK-6.3.0\Build\Wrapping\Python\twisted\python\fi
>>> lepath.py", line 828, in open
>>> return open(self.path, mode + 'b')
>>> IOError: [Errno 2] No such file or directory:
>>> 'C:\\Library\\VTK\\VTK-6.3
>>> .0\\Build\\Wrapping\\Python\\twisted\\web\\failure.xhtml'
>>>
>>> Thanks,
>>> Guanglei
>>>
>>> On Sat, Nov 14, 2015 at 11:33 AM, Sebastien Jourdain <
>>> sebastien.jourdain at kitware.com> wrote:
>>>
>>>> Hi Mengda,
>>>>
>>>> I guess it depend what kind of data you want to stream.
>>>> VTK web is already doing that by sending images through Websockets.
>>>> There is even an option that will send the scene geometry which will
>>>> let you interact with the scene locally inside your browser.
>>>>
>>>> There is several example in the VTK repository that show how to setup a
>>>> server with a basic VTK application.
>>>>
>>>> Seb
>>>>
>>>> On Fri, Nov 13, 2015 at 12:46 PM, Mengda Wu <wumengda at gmail.com> wrote:
>>>>
>>>>> Hi vtkusers,
>>>>>
>>>>> I am thinking to stream the output of vtkrenderwindow to a HTML5
>>>>> browser. I hope to do an offscreen rendering on the server and stream it
>>>>> to a HTML5 browser on the client. Is this possible?
>>>>>
>>>>> Thanks,
>>>>> Mengda
>>>>>
>>>>> _______________________________________________
>>>>> Powered by www.kitware.com
>>>>>
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>>>>>
>>>>> Please keep messages on-topic and check the VTK FAQ at:
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>>>>>
>>>>>
>>>>
>>>
>>
>
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