Tracing is like providing an external source to heat/keep temperature of fluid above the certain level. It can be done by steam or electrical wiring.
Please follow the steps to show tracing in the model.
1. Make sure tracing is defined in the model
Tracing can also be placed in the model using the below steps:
1. Open Component Update Preferences dialog:
2. Add Tracing field
3. Change the value to "1"
2. Go to Project Administrator> Isogen> Input >Option file. Change switch 62 as below, save and exit.
3. Now, Use import/export to create the isometrics.
Please see below Iso showing Traced line.
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