class MandelbrotCreate():
def __init__(self, channelName):
self.channelName = channelName
self.channel = Channel(self.channelName)
self.isConnected = False
self.clientConnectionCallback = None
def start(self):
self.channel.setConnectionCallback(self.connectionCallback)
def addClientConnectionCallback(self, clientConnectionCallback):
print('addClientConnectionCallback')
self.clientConnectionCallback = clientConnectionCallback
print('self.clientConnectionCallback=', self.clientConnectionCallback)
self.clientConnectionCallback.connectionCallback(self.isConnected)
def connectionCallback(self, arg):
print('connectionCallback arg=', arg)
self.isConnected = arg
if self.clientConnectionCallback != None:
self.clientConnectionCallback.connectionCallback(arg)
def checkConnected(self):
return self.isConnected
def createImage(self, arg):
xmin = arg[0]
xmax = arg[1]
ymin = arg[2]
ymax = arg[3]
imageSize = arg[4]
nz = arg[5]
argxmin = 'argument.xmin=' + str(xmin)
argxmax = 'argument.xmax=' + str(xmax)
argymin = 'argument.ymin=' + str(ymin)
argymax = 'argument.ymax=' + str(ymax)
argimageSize = 'argument.imageSize=' + str(imageSize)
argnz = 'argument.nz=' + str(nz)
args = [argxmin, argxmax, argymin, argymax, argimageSize, argnz]
result = self.channel.parsePutGet(
args, "putField(argument)getField(result)", True)
val = result['result.value']
val = np.array(val, dtype='uint8')
if nz == 3:
image = np.reshape(val, (imageSize, imageSize, 3))
else:
image = np.reshape(val, (imageSize, imageSize))
return image
#!/usr/bin/env python
from pvaccess import Channel
name = "PVRbyte"
print(str("starting " + name))
chan = Channel(name)
str1 = 'value=' + '20'
str2 = '{"timeStamp":{"userTag":"30"}}'
args = [str1, str2]
result = chan.parsePutGet(args, "putField(value,timeStamp)getField()", True)
print(result.toJSON(True))
print(result.toJSON(False))
print("")
name = "PVRbyteArray"
print(str("starting " + name))
chan = Channel(name)
str1 = 'value=' + '[1,2,3,4,5,6]'
args = [str1]
result = chan.parsePutGet(args, "putField(value)getField()", True)
print(result.toJSON(True))
print(result.toJSON(False))
print("")
name = "PVRBigRecord"
print(str("starting " + name))
chan = Channel(name)
str1 = 'scalar.double.value=' + '10'
str2 = 'scalarArray.double.value=' + '[10,20,30]'
args = [str1, str2]
