Open will-h-uon opened 4 years ago
carandraug
commented
4 years ago Almost no camera vendor supports Python. They all seem to have a C library so you have to wrap it with ctypes and then make use of it. That's how current cameras do it. The deformable mirrors are the same but much simpler.
For example:
iandobbie
commented
4 years ago The optimos appears to be a qimaging camera and so should be supported under pvcam. It is however a legacy device so I don't know how recent a pvcam it is compatible with and if it will work out of the box. The relevant web page (https://www.qimaging.com/software) suggests it is supported by the latest pvcam so it might just work.
Try installing pvcam then you need to install microscope (https://github.com/MicronOxford/microscope) and define a camera like
import microscope.cameras.pvcam as pvcam DEVICES=[device(pvcam.PVCamera, '127.0.0.1', 8000)
then in the cockpit depot.conf you need an entry like
[pvcamera] type: cockpit.devices.microscopeCamera.MicroscopeCamera uri: PYRO:PVCamera@127.0.0.1:8000
then it should hopefully work. Good luck!
will-h-uon
commented
4 years ago Thanks - pvcam does support the sCMOS out of the box.
Regarding depot.conf, I'm unable to find a copy of the file on my computer - where should it be?
From: Ian Dobbie notifications@github.com Sent: 22 October 2019 18:43 To: MicronOxford/microscope microscope@noreply.github.com Cc: will-h-uon ppxwh2@nottingham.ac.uk; Author author@noreply.github.com Subject: Re: [MicronOxford/microscope] Optimos sCMOS camera support (#112)
The optimos appears to be a qimaging camera and so should be supported under pvcam. It is however a legacy device so I don't know how recent a pvcam it is compatible with and if it will work out of the box. The relevant web page (https://www.qimaging.com/software) suggests it is supported by the latest pvcam so it might just work.
Try installing pvcam then you need to install microscope (https://github.com/MicronOxford/microscope) and define a camera like
import microscope.cameras.pvcam as pvcam DEVICES=[device(pvcam.PVCamera, '127.0.0.1', 8000)
then in the cockpit depot.conf you need an entry like
[pvcamera] type: cockpit.devices.microscopeCamera.MicroscopeCamera uri: PYRO:PVCamera@127.0.0.1:8000
then it should hopefully work. Good luck!
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carandraug
commented
4 years ago Regarding depot.conf, I'm unable to find a copy of the file on my computer - where should it be?
The depot.conf file is the configuration for cockpit only. The default location of this file will be system dependent. See the cockpit manual but if you are on windows, this could be C:\ProgramData\cockpit\depot.conf . The file probably does not exist, you will need to create it.
will-h-uon
commented
4 years ago Thanks for that. Unfortunately I'm still having difficulties: When I run the following
from microscope.devices import device
import microscope.cameras.pvcam as pvcam
camera = pvcam.PVCamera();
camera.enable()
I get an error:
Traceback (most recent call last):
File "Will\junk\testcam.py", line 4, in
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "Will\junk\testclientcam.py", line 3, in
It looks to me like there's some problem with the configuration of Pyro, although that's just a guess, and I have no idea why using camera.enable() causes an error, even though camera.set_exposure_time() does not.
From: Carnë Draug notifications@github.com Sent: 23 October 2019 20:25 To: MicronOxford/microscope microscope@noreply.github.com Cc: will-h-uon ppxwh2@nottingham.ac.uk; Author author@noreply.github.com Subject: Re: [MicronOxford/microscope] Optimos sCMOS camera support (#112)
Regarding depot.conf, I'm unable to find a copy of the file on my computer - where should it be?
The depot.conf file is the configuration for cockpit only. The default location of this file will be system dependent. See the cockpit manualhttps://www.micron.ox.ac.uk/software/cockpit/config.html#depot-configuration but if you are on windows, this could be C:\ProgramData\cockpit\depot.conf . The file probably does not exist, you will need to create it.
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mickp
commented
4 years ago That looks more like a missing key error in self._params. It could be that this camera doesn't set exposure time in the way the hardware I had available when I wrote this module. We should probably test that the key is in the dict near lines 1249 and 1252 of pvcam.py, and omit setting the exposure resolution if the key is missing.
On Thu, 24 Oct 2019 at 11:24, will-h-uon notifications@github.com wrote:
Thanks for that. Unfortunately I'm still having difficulties: When I run the following from microscope.devices import device import microscope.cameras.pvcam as pvcam camera = pvcam.PVCamera(); camera.enable() I get an error: Traceback (most recent call last): File "Will\junk\testcam.py", line 4, in
camera.enable() File "c:\users\labuser\pip\microscope\devices.py", line 449, in enable raise err File "c:\users\labuser\pip\microscope\devices.py", line 445, in enable result = self._on_enable() File "c:\users\labuser\pip\microscope\cameras\pvcam.py", line 1252, in _on_ena ble self._params[PARAM_EXP_RES].set_value(EXP_RES_ONE_MILLISEC) KeyError: 151191554 And if I try to use remote devices, as suggested by Ian, using this code import microscope.clients camera_uri = 'PYRO:PVCamera@127.0.0.1:8000' camera = microscope.clients.DataClient(camera_uri) camera.enable() I get this error: Traceback (most recent call last): File "C:\Users\LabUser\AppData\Local\Programs\Python\Python37-32\lib\site-pack ages\pyro4-4.77-py3.7.egg\Pyro4\core.py", line 515, in connect_and_handshake sslContext=sslContext) File "C:\Users\LabUser\AppData\Local\Programs\Python\Python37-32\lib\site-pack ages\pyro4-4.77-py3.7.egg\Pyro4\socketutil.py", line 307, in createSocket sock.connect(connect) ConnectionRefusedError: [WinError 10061] No connection could be made because the target machine actively refused it The above exception was the direct cause of the following exception:
Traceback (most recent call last): File "Will\junk\testclientcam.py", line 3, in
camera = microscope.clients.DataClient(camera_uri) File "c:\users\labuser\pip\microscope\clients.py", line 62, in init super().init(url) File "c:\users\labuser\pip\microscope\clients.py", line 41, in init self._connect() File "c:\users\labuser\pip\microscope\clients.py", line 46, in _connect self._proxy._pyroGetMetadata() File "C:\Users\LabUser\AppData\Local\Programs\Python\Python37-32\lib\site-pack ages\pyro4-4.77-py3.7.egg\Pyro4\core.py", line 615, in _pyroGetMetadata self.pyroCreateConnection() File "C:\Users\LabUser\AppData\Local\Programs\Python\Python37-32\lib\site-pack ages\pyro4-4.77-py3.7.egg\Pyro4\core.py", line 596, in pyroCreateConnection connect_and_handshake(conn) File "C:\Users\LabUser\AppData\Local\Programs\Python\Python37-32\lib\site-pack ages\pyro4-4.77-py3.7.egg\Pyro4\core.py", line 549, in connect_and_handshake raise ce Pyro4.errors.CommunicationError: cannot connect to ('127.0.0.1', 8000): [WinErro r 10061] No connection could be made because the target machine actively refused it It looks to me like there's some problem with the configuration of Pyro, although that's just a guess, and I have no idea why using camera.enable() causes an error, even though camera.set_exposure_time() does not.
From: Carnë Draug notifications@github.com Sent: 23 October 2019 20:25 To: MicronOxford/microscope microscope@noreply.github.com Cc: will-h-uon ppxwh2@nottingham.ac.uk; Author < author@noreply.github.com> Subject: Re: [MicronOxford/microscope] Optimos sCMOS camera support (#112)
Regarding depot.conf, I'm unable to find a copy of the file on my computer
- where should it be?
The depot.conf file is the configuration for cockpit only. The default location of this file will be system dependent. See the cockpit manual< https://www.micron.ox.ac.uk/software/cockpit/config.html#depot-configuration> but if you are on windows, this could be C:\ProgramData\cockpit\depot.conf . The file probably does not exist, you will need to create it.
— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub< https://github.com/MicronOxford/microscope/issues/112?email_source=notifications&email_token=AMEW5ENZNFXZK4AOQV6N7K3QQCQJPA5CNFSM4JDOALEKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOECCSXVI#issuecomment-545598421>, or unsubscribe< https://github.com/notifications/unsubscribe-auth/AMEW5EMCAF2KSFN2KCGM6D3QQCQJPANCNFSM4JDOALEA
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Mick Phillips
iandobbie
commented
4 years ago I suspect that Mick is right as he wrote the pvcam module. I will investigate getting hold of an optimos to test with.
Optimos sCMOS camera is connected by a proprietary PCIe card. Their documentation says it does not support python - does this mean I'm at a dead end here?