# Chamfer Dimension
Mark upscale dimensions on a 3D model. The dimensions marked by the command are placed in View Panel - Dimensions
Main functions and mode of operation:
- Click "Reverse angle size"
to pop up the dialog box.
Marking elements: Select two items, support the choice of "line"; After selecting the element, move the mouse to select the label placement
The remaining parameters are set along with the project diagram - reverse angular dimensions.
Click on the drawing of the completion of the three-dimensional annotation, three-dimensional annotation was selected highlight, pop-up dialog box, you can enter Lines should be re-edited; Drag the mouse to change the position in the plane where the annotation is located.
Example: The following view is an activated view with a reverse angular dimension. The effect is as follows.