Detailed Drawings > Markups > About Markups
  
About Markups
A markup is an object that, like a set of transparent sheets on top of a drawing sheet, enables you to superimpose text and sketched entities in a variety of colors to indicate where changes may be required.
A markup is an informal sketch that you can create within Creo Parametric with text superimposed over any object. 
The basis for the markup is the object that you select to mark up. To create a markup, you use an object in the mode in which it was created:
Part (includes all objects with a .prt extension).
Assembly (includes all objects with an .asm extension).
Drawing
Manufacturing
Layout
Report
Diagram
The object accompanies the markup file, which uses the file extension .mrk.
 
* The Orientation, Model Display, and Advanced commands are not available in the View menu after you create a new markup object. You must orient your three-dimensional object before you create it. The system saves the orientation with the markup.
Each markup is like a separate transparent sheet laid over the object and contains sketched entities and/or notes in a single color.
During the markup process, the system does not change the object in any way, and saves all sketched entities and notes created in Markup mode with the markup file, not with the object. Since the driving object does not change, the system does not store it when it stores the markup.
You can also create a markup for a multisheet drawing, continuing over all of the sheets.
Note the following rules of operation for Markup mode:
With assemblies, the following applies:
When you create an exploded view for a markup item, it does not affect the exploded status of the views in other items.
You can simultaneously see only those markup items that have the same explode status, explode dimensions, and view orientation.
You can modify explode dimensions by using Mod Explode in the ENTER MARKUP menu.
The system displays three-dimensional objects with their colors as well as drawing colors.
A markup file must reside in the directory of the object that the markup references.
Layout dimensions appear as symbolic.