Changing built-in parameters in Revit can be a complex task due to the restrictions inherent within the software. However, with clear steps and an understanding of what built-in parameters are, you can effectively manage your project requirements. This guide explains how to change a built-in parameter, focusing on best practices and essential insights.
Understanding Built-in Parameters
Built-in parameters are predefined attributes integrated into Revit’s family templates. These include fundamental properties tied to elements, which facilitate the functionality of Revit in various modeling contexts. They are immutable, meaning you cannot delete or directly modify these parameters; instead, default values can be assigned.
Step-by-Step Guide to Change a Built-in Parameter
Identify the Parameter: Start by identifying the built-in parameter you wish to change. Make note of its exact name, as maintaining consistent naming conventions is crucial when working within Revit.
Change the Category of the Element: To modify a built-in parameter, the category of the element must be adjusted. For example, if you are working with a door element that requires changes, consider converting it to a generic model type. This step allows you more flexibility in modifying associated parameters.
Create a New Parameter: After changing the category, proceed to create a new parameter. This is where you specify the details for your desired attribute, such as Fire Rating. This ensures that the information you wish to incorporate is precisely defined for your modeling needs.
Set the Parameter Type: Select the type of parameter you want to create. Options typically include instance-based or type-based settings. In many cases, instance-based parameters are preferred for attributes that vary between instances of a family.
Define the Data Type: Specify the data type for your new parameter. For example, if you are creating a parameter for Fire Rating, you may want to choose a text format to allow for clarity in the information being input.
Assign to the Appropriate Group: When creating a parameter, it’s important to categorize it under the right group. Parameters aimed at identity data can usually be found in a designated section, allowing for better organization and retrievability in your projects.
- Finalize Changes: Once all necessary adjustments are made, apply and save your changes. This action will enable the new parameter to be utilized within your project elements.
Managing Built-in Parameters in Revit API
For those using programming interfaces, accessing built-in parameters through the Revit API can be an effective way to interact programmatically. The parameters are accessible via the Element Properties dialog, where each built-in parameter can be identified using an enumerated type, which grants finer control over the parameters during development.
FAQ Section
Can built-in parameters be deleted or renamed?
No, built-in parameters cannot be deleted or renamed directly. They are fixed components of Revit’s framework. However, you can set default values or create new parameters to supplement specific needs.What’s the difference between built-in and shared parameters?
Built-in parameters are predefined by Revit and are fixed in family templates, while shared parameters are user-defined attributes that can be applied across multiple families or projects. Shared parameters are stored in an external file and offer more flexibility for custom attributes.- How can I effectively manage multiple parameters in a project?
Establish a naming convention and grouping method for your parameters. This organization strategy ensures clarity and aids in navigating between parameters when viewing properties or creating schedules within a Revit project. Using shared parameters appropriately can also enhance consistency across your projects.
