Symbols are annotation elements that are used to communicate design information. Because these symbols are annotation elements, their size automatically updates with the scale of the view so that the size remains constant on the layout/printed sheet. Symbols are commonly used for adding North Symbol, Light Symbol, Welding Symbol, Keyplan symbol, etc on the views. Symbols can be customised using a Generic Annotations Family template.
Learn about creating a custom symbol and adding it on the drawing in this Video Tutorial – by Greg Wheler
Tags are annotation elements that are used to identify elements in a drawing. It can also be considered as smart text or parametric text because the value of the text in the tag is derived from a parameter of that element. For example, a Window tag can show the value of the ‘Type Mark’ parameter of that Window. So, if the parameter changes, the text in the tag automatically changes.
Learn about placing tags with or without leaders in this Video Tutorial – by Autodesk
Learn how to customise the tag information with this Video Tutorial – by Autodesk
Learn how to add tags to a 3D Detail view with this Video Tutorial – by Autodesk
You can add additional information to your drawing by adding text notes. Text can be added with or without leader arrows. They are annotation elements which means that their size remains constant on the print and scales automatically with the scale of the drawing. For example, a 2mm text note will automatically scale according to the scale of the drawing so that when the drawing is printed, the size of the text is 2mm on paper.
Learn about text size and how to change the text size in text notes, dimension and tags with this video tutorial – by Autodesk
Learn how to add symbols and special characters to your text notes with this Video Tutorial – by Autodesk
Learn how to add general annotations to views, create general notes on title sheets and format text in notes with this Video Tutorial – by Autodesk
There are two types of dimensions in Revit: Temporary and Permanent. Temporary dimensions appear when you place or select elements, but disappear when that action is completed. Permanent dimensions need to be added for documentation and they are view-specific (they are displayed only on the view that they are being added to). In this tutorial, you will learn about,
Adding dimension to a project
Baseline and Ordinate Dimension
Dimension witness line
Learn what temporary dimensions are and how to control them in this video tutorial – by BIMscape
Witness lines are the lines that indicate which elements do the dimensions refer to. You can move the witness lines of the temporary as well as the permanent dimension to a new reference point. The measurement shown in the dimension will update automatically to the new reference.
Learn about dimension witness line in this video tutorial – by twinsavior