Chapter 19. Parameters
Revit is sometimes referred to as a parametric modeling application. Parameters are the very core of what makes Revit MEP 2011 such a powerful design and modeling tool. Parameters hold the computable data that defines the properties of not only model components but everything that makes up a Revit project. They are the characteristics of all elements of a Revit project that ultimately determine behavior, appearance, performance, and information.
Parameters and properties are often considered synonymous, but it is parameters that determine the properties of a component. Properties may be static, yet parameters allow for change to be propagated throughout the project. For example, you can have an object with a length property, ...
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