added python examples in source

This commit is contained in:
Erik Frojdh 2020-08-20 09:21:59 +02:00
parent c4fde7f7bc
commit 9b26f5a6c8
3 changed files with 80 additions and 30 deletions

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@ -74,34 +74,38 @@ But lets start looking at the at the manual way:
::
import time
from slsdet import Eiger, runStatus
d = Eiger()
n = 10
t = 1
d.exptime = t
d.frames = n
from slsdet import Detector, runStatus
#Start the measurement
n_frames = 10
t_exp = 1
# Set exposure time and number of frames
d = Detector()
d.exptime = t_exp
d.frames = n_frames
# Start the measurement
t0 = time.time()
d.startDetector()
d.startReceiver()
#Wait for the detector to be ready or do other important stuff
time.sleep(t*n)
# Wait for the detector to be ready or do other important stuff
time.sleep(t_exp * n_frames)
#check if the detector is ready otherwise wait a bit longer
# check if the detector is ready otherwise wait a bit longer
while d.status != runStatus.IDLE:
time.sleep(0.1)
#Stop the receiver after we got the frames
#Detector is already idle so we don't need to stop it
# Stop the receiver after we got the frames
# Detector is already idle so we don't need to stop it
d.stopReceiver()
lost = d.rx_framescaught - n
print(f'{n} frames of {t}s took {time.time()-t0:{.3}}s with {lost} frames lost ')
lost = d.rx_framescaught - n_frames
print(
f"{n_frames} frames of {t_exp}s took {time.time()-t0:{.3}}s with {lost} frames lost "
)
Instead launching d.acq() from a different process is a bit easier since the control of receiver and detector
@ -112,29 +116,21 @@ hang around until the main process exits.
import time
from multiprocessing import Process
from slsdet import Eiger
from slsdet import Detector, runStatus
def acquire():
"""
Create a new Eiger object that still referes to the same actual detector
and same shared memory. Then launch acq.
"""
detector = Eiger()
detector.acq()
#This is the detector we use throughout the session
d = Eiger()
d = Detector()
#Process to run acquire
p = Process(target=acquire)
#Create a separate process to run acquire in
p = Process(target=d.acquire)
#Start the thread and short sleep to allow the acq to start
p.start()
time.sleep(0.01)
#Do some other work
while d.busy is True:
print(d.busy)
while d.status != runStatus.IDLE:
print("Working")
time.sleep(0.1)
#Join the process

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@ -0,0 +1,21 @@
import time
from multiprocessing import Process
from slsdet import Detector, runStatus
d = Detector()
#Create a separate process to run acquire in
p = Process(target=d.acquire)
#Start the thread and short sleep to allow the acq to start
p.start()
time.sleep(0.01)
#Do some other work
while d.status != runStatus.IDLE:
print("Working")
time.sleep(0.1)
#Join the process
p.join()

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@ -0,0 +1,33 @@
import time
from slsdet import Detector, runStatus
n_frames = 10
t_exp = 1
# Set exposure time and number of frames
d = Detector()
d.exptime = t_exp
d.frames = n_frames
# Start the measurement
t0 = time.time()
d.startDetector()
d.startReceiver()
# Wait for the detector to be ready or do other important stuff
time.sleep(t_exp * n_frames)
# check if the detector is ready otherwise wait a bit longer
while d.status != runStatus.IDLE:
time.sleep(0.1)
# Stop the receiver after we got the frames
# Detector is already idle so we don't need to stop it
d.stopReceiver()
lost = d.rx_framescaught - n_frames
print(
f"{n_frames} frames of {t_exp}s took {time.time()-t0:{.3}}s with {lost} frames lost "
)