def init(self):
self.connectCallbacksignal.connect(self.connectionCallback)
self.monitorCallbacksignal.connect(self.monitorCallback)
self.callbackDoneEvent = Event()
self.callbackDoneEvent.set()
self.channel = Channel(getDynamicRecordName())
self.channel.setConnectionCallback(self.pvapyconnectioncallback)
def start(self) :
self.ctxt = Context('pva')
self.firstCallback = True
self.isClosed = False
self.subscription = self.ctxt.monitor(
getDynamicRecordName(),
self.p4pcallback,
request='field()',
notify_disconnect=True)
data.name = curveData["name"]
data.computeLimits()
print('name=', data.name, ' xmin=', data.xmin, ' xmax=', data.xmax,
' ymin=', data.ymin, ' ymax=', data.ymax)
npts = len(x)
timestart = time.time()
for ind in range(npts):
xarr = np.empty([ind])
yarr = np.empty([ind])
for i in range(ind):
xarr[i] = x[i]
yarr[i] = y[i]
data.x = xarr
data.y = yarr
if ind == 0:
putdata = {
"name": data.name,
"xmin": data.xmin,
"xmax": data.xmax,
"ymin": data.ymin,
"ymax": data.ymax,
"x": x,
"y": y
}
else:
putdata = {"x": xarr, "y": yarr}
ctxt.put(getDynamicRecordName(), putdata)
timenow = time.time()
timediff = timenow - timestart
print('putrate=', str(round(npts / timediff)), ' per second')
#!/usr/bin/env python
from Dynamic_Common import getAddRecordName,getDynamicRecordName
from p4p.client.thread import Context,Type,Value
import numpy as np
ctxt = Context('pva')
pvAddRecord = ctxt.get(getAddRecordName())
print('pvAddRecord=',pvAddRecord)
struct = Value(Type([
('name', 's'),
('x', 'ad'),
('y', 'ad'),
('xmin', 'd'),
('xmax', 'd'),
('ymin', 'd'),
('ymax', 'd'),
]))
pvAddRecord['argument']['recordName'] = getDynamicRecordName()
pvAddRecord['argument']['union'] = struct
ctxt.put(getAddRecordName(),pvAddRecord)
#!/usr/bin/env python
from Dynamic_Common import getAddRecordName, getDynamicRecordName
from pvaccess import *
import numpy as np
chan = Channel(getAddRecordName())
pvAddRecord = chan.get('field(argument)')
print('pvAddRecord=', pvAddRecord)
struct = PvObject(\
{ 'name':STRING\
,'x':[DOUBLE]\
,'y':[DOUBLE]\
,'xmin':DOUBLE\
,'xmax':DOUBLE\
,'ymin':DOUBLE\
,'ymax':DOUBLE\
})
structValue = PvObject({'value': struct})
addRecordValue = PvObject({'argument': {'recordName': STRING, 'union': ()}})
addRecordValue['argument.union'] = structValue
chan = Channel("TPYaddRecord")
addRecordValue['argument.recordName'] = getDynamicRecordName()
result = chan.putGet(addRecordValue, 'putField(argument)getField(result)')
print(result)