SetInstrumentParameter dialog.
Table of Contents
| Name | Direction | Type | Default | Description |
|---|---|---|---|---|
| Workspace | InOut | MatrixWorkspace | Mandatory | Workspace to add the log entry to |
| ComponentName | Input | string | The name of the component to attach the parameter to. Default: the whole instrument | |
| DetectorList | Input | int list | The detector ID list to attach the parameter to. If set this will override any ComponentName | |
| ParameterName | Input | string | Mandatory | The name that will identify the parameter |
| ParameterType | Input | string | String | The type that the parameter value will be. Allowed values: [‘String’, ‘Number’] |
| Value | Input | string | The content of the Parameter |
This algorithm adds or replaces an parameter attached to an instrument component, or the entire instrument. Instrument parameters are specific to a workspace, they will get carried on to output workspaces created from an input workspace to an algorithm, but will not appear one unrelated workspaces that happen to have been recorded on the same instrument.
The workspace must have a instrument already defined, and will be altered in place. If the name of the instrument component to attach the parameter is not specified it will be attached to the whole instrument.
At present this algorithm only supports simple instrument parameters, NOT fitting parameters.
Example - a few simple parameters
ws = CreateSampleWorkspace()
#set a string parameter on the whole instrument
SetInstrumentParameter(ws,ParameterName="TestParam",Value="Hello")
#set a Number parameter just for bank 1
SetInstrumentParameter(ws,ParameterName="NumberParam",Value="3", ComponentName="bank1",ParameterType="Number")
#set a different value on bank 2
SetInstrumentParameter(ws,ParameterName="NumberParam",Value="3.5", ComponentName="bank2",ParameterType="Number")
instrument=ws.getInstrument()
bank1=instrument.getComponentByName("bank1")
bank2=instrument.getComponentByName("bank2")
print ("The whole instrument parameter can be read from anywhere.")
print (" The instrument: " + instrument.getStringParameter("TestParam")[0])
print (" bank 1: " + bank1.getStringParameter("TestParam")[0])
print (" bank 2: " + bank2.getStringParameter("TestParam")[0])
print ("The parameters on the Bank 1 can be read from the bank or below.")
#For this one call getIntParameter as the number was an int
print (" bank 1: " + str(bank1.getIntParameter("NumberParam")[0]))
#For this one call getNumberParameter as the number was a float
print (" bank 2: " + str(bank2.getNumberParameter("NumberParam")[0]))
#if you are not sure of the type of a parameter you can call getParameterType
print (" The type of NumberParam in bank 1: " + bank1.getParameterType("NumberParam"))
print (" The type of NumberParam in bank 2: " + bank2.getParameterType("NumberParam"))
Output:
The whole instrument parameter can be read from anywhere.
The instrument: Hello
bank 1: Hello
bank 2: Hello
The parameters on the Bank 1 can be read from the bank or below.
bank 1: 3
bank 2: 3.5
The type of NumberParam in bank 1: int
The type of NumberParam in bank 2: double
Example - Overwriting existing values
ws = CreateSampleWorkspace()
#set a string parameter on the whole instrument
SetInstrumentParameter(ws,ParameterName="TestParam",Value="Hello")
SetInstrumentParameter(ws,ParameterName="TestParam",Value="Goodbye")
SetInstrumentParameter(ws,ParameterName="TestParam",Value="Hello from bank 1",ComponentName="bank1")
instrument=ws.getInstrument()
bank1=instrument.getComponentByName("bank1")
print ("The SetInstrumentParameter overwrites previous values where the ParameterName and Component match.")
print (" The test param for the instrument is: " + instrument.getStringParameter("TestParam")[0])
print ("Different Components can have the same Parameter Name with different values.")
print ("You will receive the closest value to the component you ask from.")
print (" The test param for bank 1 is: " + bank1.getStringParameter("TestParam")[0])
Output:
The SetInstrumentParameter overwrites previous values where the ParameterName and Component match.
The test param for the instrument is: Goodbye
Different Components can have the same Parameter Name with different values.
You will receive the closest value to the component you ask from.
The test param for bank 1 is: Hello from bank 1
Categories: Algorithms | DataHandling | Instrument