On 3/23/2025 3:34 AM, richard.taplin via groups.io wrote:
I want to modify the "PreferencesExamples" script to show me the - Preferences - System manufacture and System connection.
I want to check when I'm in " Digitrax - LocoNet Simulator " mode, for use in another script.
I can't find the info on how to reference these points.
I do something in a jython script to figure out whether I run a "CMRI Simulator" connection or a connection with real physical connection. It loops thru the configured connections in the current JMRI run's "Edit"->"Preferences", and checks each to find if its "System Connection" is set to "C/MRI Sinulator". If any connection is "C/MRI Sinulator", it sets that variable to "True". If one uses a "C/MRI Simulator", it sets the variable to "True". If NONE of the connections uses "C/MRI Simulator", it sets the variable to "False".
Here is the script. Hopefully the "spacing" has not been changed to "tabs" the way I have included it below...
### begin of Jython script
#
# Called by an initialization Logix or a Start Up action
#
# Checks the list of connections for a specified simulator.
# If found, sets the simulation sensor to Active, otherwise Inactive.
#
# Script originally by Dave Sand, modified by Bob Milhaupt
import jmri
import java
logLevel = 0
# an array, sensorNames, which is used to define an internal
# Sensor. The array defines the Sensor as:
#
# a string with the System Name of the variable, and
#
# a string with the User Name of the variable
# .
sensorNames = ['IS9997', 'Running Under CMRI Simulator']
nameOfSimulatorConnection = 'C/MRI Simulator'
simulatorMode = False
simSensor = sensors.getSensor(sensorNames[0])
if simSensor is None:
simSensor = sensors.provideSensor(sensorNames[0])
simSensor.setUserName(sensorNames[1])
connectionList = jmri.InstanceManager.getDefault(jmri.jmrix.ConnectionConfigManager).getConnections()
if len(connectionList) == 0:
print 'No connections found'
else:
for connection in connectionList:
if logLevel > 1: print connection
chkName = connection.name()
if logLevel > 0: print 'connection name = {}'.format(chkName)
if not chkName:
print 'Unable to retrieve connection name'
else:
print "Target {} compared to connection named " \
+"{}".format(nameOfSimulatorConnection, chkName)
if nameOfSimulatorConnection in chkName:
if logLevel > 1: print 'found matching connection name!'
simulatorMode = True
if logLevel > 0: print simulatorMode
if simulatorMode:
print '....Setup simulation mode: {}'.format(chkName)
simSensor.setKnownState(ACTIVE)
else:
print '....Setup connected mode'
simSensor.setKnownState(INACTIVE)
### end of Jython script
One could change the Jython script to be sensitive to some other "Simulator" connection by changing the value in the "nameOfSimulatorConnection" variable to an appropriate simulator name.
Two changes are needed in the script. First, change the "user name" in the internal Sensor declaration:
### begin change of Jython script
sensorNames = ['IS9997', 'Running Under LocoNet Simulator']
### end of change of Jython script
And use the following line for checking for a LocoNet Simulator connection:
### begin change of Jython script
nameOfSimulatorConnection = 'LocoNet Simulator'
### end of change of Jython script
Hope that helps!
