Work Method Scripts

A work method script is a Python file named after the work method (e.g., ArcWeldWM.py). It lives in the work method scripts folder inside the plugin.

When the kernel processes a work method, it calls these callbacks in order:

Callback Chain

Callback → Operator Class Reference

Callback	Operator class	Purpose
PostWmInitAttributes	`CENPyOlpWM_AttribInitOperator`	Create/read/write work method attributes
PostWmInitEvents	`CENPyOlpWM_EventInitOperator`	Register work method events
PostWmInitRules	`CENPyOlpWM_RuleInitOperator`	Register work method rules
PostWmSyncPgAttributes	`CENPyOlpWM_SyncPgAttribOperator`	Synchronize process geometry attributes
PostProcessOperationAttributes	`CENPyOlpWM_POAttribOperator`	Read/write per-operation attributes
PostWmOnAttribChanged	`CENPyOlpWM_AttribChangedOperator`	Reacts to attribute changes
PostWmOnFrameChanged	`CENPyOlpFrameChangedOperator`	Reacts to frame changes

Typical Pattern


def PostWmInitAttributes(wmAttribInitOperator):
    creator = wmAttribInitOperator.GetAttribCreator()
    creator.AddDouble('Offset', 0.0, -50, 50, 0.1,
                      USER_ATTRIBUTE | OPERATION_ATTRIBUTE, ATTRIB_LENGTH, 'Offset')
 
def PostProcessOperationAttributes(wmPOAttribOperator):
    getter = wmPOAttribOperator.GetAttribGetter()
    offset = getter.GetDouble('Offset')
    logOp = wmPOAttribOperator.GetLoggerOperator()
    logOp.LogInfo(f'Processing operation with offset {offset}')

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