Contents
When do you use inline variables in ArcGIS?
When a model executes, the inline variables are identified and used in the following order: Model variables. Model environment settings. System variables ( %i% and %n% ). Variables in the parent model. If the currently running model is a submodel, the parent model’s variables are searched.
How to create a system variable in ArcGIS?
System variable —There are two system variables in ModelBuilder: %i% for a list number of a variable and %n% as the iteration number in the model. Enclose the variable name in percent signs ( % ). Spaces within the variable name are allowed.
How is an inline variable used in ModelBuilder?
In ModelBuilder, contents of a variable can be used as a substitute for another variable by enclosing the substituting variable in percent signs ( % ). Substituting variables in this manner is called inline variable substitution. A simple case of inline variable substitution is replacing some text or a value in a model with user input.
What are the different types of inline variables?
Inline variable classification. Inline variables are classified into two types: Model variables —Any variable in a model: %variable name%. System variable —There are two system variables in ModelBuilder: %i% for a list number of a variable and %n% as the iteration number in the model.
How to substitute the name of a feature in ArcGIS?
When the tool executes, %Name% is replaced with the name of the feature class. Parcel ID is a model parameter that is specified when the model tool is run. This variable is used in the Expression parameter of the Select Layer By Attribute tool as “Parcel” = ‘%Parcel ID%’.
Which is an example of inline variable substitution?
Substituting variables in this manner is called inline variable substitution. A simple case of inline variable substitution is replacing some text or a value in a model with user input. For examples of inline variable substitution, see the following: Inline variables are classified into two types:
When to use name variable in ArcGIS help?
When the iterator Iterate Feature Classes runs, it creates an output variable for both the path and name of the feature class. The value in the Name variable can be used to construct the path to the projected feature class. When the tool executes, %Name% is replaced with the name of the feature class.