The specific condition (i.e., exceptions as named it) of this tool as connecting the variables is explained in the respective help page as follows:
The Raster Calculator tool generally follows the standard connectivity behavior of models in ModelBuilder, with some exceptions resulting from the requirements of formulating a valid Map Algebra expression. These include the following:
- Variables are connected to the Raster Calculator tool when they are selected from the list of variables. All variables are automatically listed in the Variable list inside the
Variables are connected to the Raster Calculator tool when they are selected from the list of variables. All variables are automatically listed in the Variable list inside the tool.
tool.
- When a dataset or variable is used in the expression, a link between the variable and the tool will be created. If you remove the variable from the expression, the associated link between the variable
When a dataset or variable is used in the expression, a link between the variable and the tool will be created. If you remove the variable from the expression, the associated link between the variable and the tool will also be removed.
and the tool will also be removed.
- If you delete the connection to a
If you delete the connection to a variable, the variable is not removed from the expression.
variable, the variable is not removed from the expression.- You should not rename a variable that is connected to the tool, since the variable will not be renamed within the expression. If you do so, the
You should not rename a variable that is connected to the tool, since the variable will not be renamed within the expression. If you do so, the expression will be invalid.
expression will be invalid.
