UP3D UP500 User Manual page 42

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are detected and displayed with blue lines.
A2.You can drag and drop the hole radius to draw a blue hole boundary smaller than the radius in
real time.
A3.Click【One-key filling】then it will fill all selected holes.
Model editing tools-【invert】
（4）
It is divided into obverse side (model outer surface) and reverse side(model inner surface) display
when the model (mesh) is displayed in the scene, the obverse side is generally displayed in gray,
and the reverse side is displayed in yellow; Users can reverse the obverse and back sides by the
【invert】 function when the front and back of the model are reversed incorrectly.
Generally speaking, we use this function when scanning impressions or model with normal errors.
Operation:
A1.Click【invert】to enable or disable the invert function.
A2.Click the left button on a connected region of the model to perform the invert function; You
need to reverse the entire model if the model has only one connected area.
A3.Hold down the Alt key and click left button on the connected area to invert the current model.
the whole connected areas will perform the invert function if the model has many connected areas.
（5）Model editing tools-【Undo/redo】
The undo function can be used to cancel the executed operation when an edit operation such as
delete, fill hole, or invert function is performed on the model.
Operation:
A1.Undo hot key: Ctrl + Z
A2.Redo hot key: Ctrl + Y
（6）Margin edit
The software provides a margin line editing function in the impression and model scanning process,
which is convenient for the user to draw a margin line for each tooth during the scanning phase, and
the margin line file is output for the CAD(UPCAD and Exocad) software to directly read the
margin line when enter the design software.
Operation:
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