Merge branch 'pilatus_2' into 'master'
Pilatus 2 See merge request bec/ophyd_devices!33
This commit is contained in:
commit
33e317c01a
217
ophyd_devices/epics/devices/pilatus_csaxs.py
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217
ophyd_devices/epics/devices/pilatus_csaxs.py
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import json
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import os
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import requests
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import numpy as np
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from typing import List
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from ophyd.areadetector import ADComponent as ADCpt, PilatusDetectorCam, DetectorBase
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from ophyd.areadetector.plugins import FileBase
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from bec_lib.core import BECMessage, MessageEndpoints
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from bec_lib.core.file_utils import FileWriterMixin
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from bec_lib.core import bec_logger
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logger = bec_logger.logger
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class PilatusDetectorCamEx(PilatusDetectorCam, FileBase):
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pass
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class PilatusCsaxs(DetectorBase):
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"""
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in device config, device_access needs to be set true to inject the device manager
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"""
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_html_docs = ["PilatusDoc.html"]
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cam = ADCpt(PilatusDetectorCamEx, "cam1:")
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def __init__(
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self,
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prefix="",
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*,
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name,
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kind=None,
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read_attrs=None,
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configuration_attrs=None,
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parent=None,
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device_manager=None,
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**kwargs,
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):
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self.device_manager = device_manager
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self.username = "e21206" # TODO get from config
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# self.username = self.device_manager.producer.get(MessageEndpoints.account()).decode()
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super().__init__(
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prefix=prefix,
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name=name,
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kind=kind,
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read_attrs=read_attrs,
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configuration_attrs=configuration_attrs,
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parent=parent,
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**kwargs,
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)
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# TODO how to get base_path
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self.service_cfg = {"base_path": f"/sls/X12SA/data/{self.username}/Data10/pilatus_2/"}
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self.filewriter = FileWriterMixin(self.service_cfg)
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self.num_frames = 0
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self.readout = 0.003 # 3 ms
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self.triggermode = 0 # 0 : internal, scan must set this if hardware triggered
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def _get_current_scan_msg(self) -> BECMessage.ScanStatusMessage:
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msg = self.device_manager.producer.get(MessageEndpoints.scan_status())
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return BECMessage.ScanStatusMessage.loads(msg)
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def stage(self) -> List[object]:
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# TODO remove
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# scan_msg = self._get_current_scan_msg()
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# self.metadata = {
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# "scanID": scan_msg.content["scanID"],
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# "RID": scan_msg.content["info"]["RID"],
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# "queueID": scan_msg.content["info"]["queueID"],
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# }
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self.scan_number = 10 # scan_msg.content["info"]["scan_number"]
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self.exp_time = 0.5 # scan_msg.content["info"]["exp_time"]
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self.num_frames = 3 # scan_msg.content["info"]["num_points"]
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# TODO remove
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# self.username = self.device_manager.producer.get(MessageEndpoints.account()).decode()
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# set pilatus threshol
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self._set_threshold()
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# set Epic PVs for filewriting
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self.cam.file_path.set(f"/dev/shm/zmq/")
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self.cam.file_name.set(f"{self.username}_2_{self.scan_number:05d}")
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self.cam.auto_increment.set(1) # auto increment
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self.cam.file_number.set(0) # first iter
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self.cam.file_format.set(0) # 0: TIFF
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self.cam.file_template.set("%s%s_%5.5d.cbf")
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# compile zmq stream for data transfer
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scan_dir = self.filewriter._get_scan_directory(
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scan_bundle=1000, scan_number=self.scan_number, leading_zeros=5
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)
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self.destination_path = os.path.join(
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self.service_cfg["base_path"]
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) # os.path.join(self.service_cfg["base_path"], scan_dir)
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data_msg = {
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"source": [
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{
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"searchPath": "/",
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"searchPattern": "glob:*.cbf",
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"destinationPath": self.destination_path,
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}
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]
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}
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logger.info(data_msg)
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headers = {"Content-Type": "application/json", "Accept": "application/json"}
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res = requests.put(
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url="http://x12sa-pd-2:8080/stream/pilatus_2",
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data=json.dumps(data_msg),
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headers=headers,
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)
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if not res.ok:
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res.raise_for_status()
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# prepare writer
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data_msg = [
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"zmqWriter",
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self.username,
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{
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"addr": "tcp://x12sa-pd-2:8888",
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"dst": ["file"],
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"numFrm": self.num_frames,
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"timeout": 2000,
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"ifType": "PULL",
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"user": self.username,
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},
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]
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res = requests.put(
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url="http://xbl-daq-34:8091/pilatus_2/run",
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data=json.dumps(data_msg),
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headers=headers,
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)
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if not res.ok:
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res.raise_for_status()
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self._set_acquisition_params(
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exp_time=self.exp_time,
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readout=self.readout,
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num_frames=self.num_frames,
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triggermode=self.triggermode,
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)
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return super().stage()
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def unstage(self) -> List[object]:
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headers = {"Content-Type": "application/json", "Accept": "application/json"}
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data_msg = [
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"zmqWriter",
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self.username,
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{
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"frmCnt": self.num_frames,
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"timeout": 2000,
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"ifType": "PULL",
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"user": self.username,
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},
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]
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logger.info(data_msg)
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res = requests.put(
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url="http://xbl-daq-34:8091/pilatus_1/run",
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data=json.dumps(data_msg),
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headers=headers,
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)
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# Reset triggermode to internal
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self.triggermode = 0
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if not res.ok:
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res.raise_for_status()
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return super().unstage()
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def _set_threshold(self) -> None:
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# TODO readout mono, monitor threshold and set it if mokev is different
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# mokev = self.device_manager.devices.mokev.obj.read()["mokev"]["value"]
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# TODO remove
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mokev = 16
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# TODO refactor naming from name, pilatus_2
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pil_threshold = self.cam.threshold_energy.read()["pilatus_2_cam_threshold_energy"]["value"]
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if not np.isclose(mokev / 2, pil_threshold, rtol=0.05):
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self.cam.threshold_energy.set(mokev / 2)
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def _set_acquisition_params(
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self, exp_time: float, readout: float, num_frames: int, triggermode: int
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) -> None:
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"""set acquisition parameters on the detector
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Args:
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exp_time (float): exposure time
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readout (float): readout time
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num_frames (int): images per scan
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triggermode (int):
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0 Internal
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1 Ext. Enable
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2 Ext. Trigger
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3 Mult. Trigger
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4 Alignment
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Returns:
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None
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"""
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self.cam.acquire_time.set(exp_time)
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self.cam.acquire_period.set(exp_time + readout)
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self.cam.num_images.set(num_frames)
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self.cam.num_exposures.set(1)
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self.cam.trigger_mode.set(triggermode)
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def acquire(self) -> None:
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self.cam.acquire.set(1)
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def stop(self, *, success=False) -> None:
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self.cam.acquire.set(0)
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super().stop(success=success)
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self._stopped = True
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