opinputpath expression function

Returns the full path of the node connected to a given input.

See also: opinput, opninputs, opoutput, opoutputpath

index is the 0-based number of the input. For example, to get the path of the node connected to the first input, use opinputpath(".", 0), and for the second input, use opinputpath(".", 1).

point(opinputpath(".", 0), $PT, "P", 0)