Accessing Parameters from Scripts

VectorScript provides a well-defined mechanism for directly accessing values in parameter records within plug-in scripts. This mechanism, known as parameter referencing, allows parameter values to be easily retrieved for use with scripts.

The generalized syntax for parameter references is as follows:

P<name of parameter>

Parameter names should contain underscores representing any embedded spaces in the parameter name. For example, a dimension parameter named Space Width would be referenced in a script as:

PSPACE_WIDTH

Parameter references can be used to assign values to other identifiers in a script. Supported identifiers include variable, array, array element, and structure member identifiers. For example, assigning the value in the parameter to a variable would be defined as:

sp_width:= PSPACE_WIDTH;

Parameter references can also be used like constants in expressions or function arguments. For example, valid uses of Space Width parameter would include:

totalWidth:= 5 * PSPACE_WIDTH;

CalculateTotal(PSPACE_WIDTH,2);

Parameter references should always be treated as constant values. Parameter references do not accept value assignments, and parameter reference values cannot be modified.