The Surface Repair options in the dialog are shown below.
The buttons in the Surface Repair dialog only become active when the appropriate face, edge and/or vertex selections have been made. For example, the Delete Selected Faces button can only be accessed when one or more faces have been selected.
A more detailed description of each button is provided below.
Delete Selected Faces - Delete the selected face or faces from the model. At least one face needs to be selected before the button becomes active.
Create Faces from Selected Vertices - Create a new face using the selected vertices. Three vertices need to be selected for the button to be active.
Collapse Selected Vertices - Collapse two vertices to the mid-point between them, or collapse a selected face or edge. If an attached vertex is also selected along with one of the latter two entities then the face or edge is collapsed to the selected vertex. Two vertices, a single edge or a face (with an optional attached vertex for the last two) need to be selected for the button to be active.
Split Selected Edge - Split the face or faces attached to an edge in half using the mid-point of the selected edge. A single edge only should be selected for the button to be active.
Swap Selected Edge - Swap the connected edge between two faces in order to attempt the improve the resultant quality of the two faces. A single edge only should be selected for the button to be active.
Smooth Selected Vertices - Locally smooth the selected vertex or vertices to provide a higher face triangulation quality. At least one vertex, edge or face needs to be selected for the button to be active.
Fill Holes using Selected Edges - Fill a hole with new face or faces based on the selected edge loop (simple connected loop type only). At least three edges need to be selected for the button to be active.
Zip Selected Edges - Locally zip faces together to remove free edges. Two or more edges must be selected for the button to be active. The Edge Zipping Options dialog will appear with extra options (see below).
Remesh Selected Faces - Locally remesh the selected faces to improve the triangle quality. Feature curves or edges flagged as feature curves contained in the surface will be retained. At least one face needs to be selected for this option to be active.
Flag Edges as Feature - Locally create feature curves for the selected edge or edges in order for the surface detail to be retained during surface remeshing. At least one edge needs to be selected for this button to be active. Note that a new feature curve node called Surface Repair Edges will be created in the Feature Curves node for the region.
Unflag Feature Edges - Locally delete the selected feature curves in order to remove surface detail when surface remeshing. Note that feature curves are permanently removed by this process. At least one feature curve needs to be selected for this button to be active.
Undo - Undo the previous surface repair operation. Holding the mouse cursor over the button once it becomes active indicates the operation that will be done using the tooltip.
Redo - Redo the previously undone surface repair operation. Holding the mouse cursor over the button once it becomes active indicates the operation that will be redone using the tooltip.
When selecting to perform edge zipping, the Edge Zipping Options dialog will appear, as shown below:
The same tolerance specifications as used for zipping edges using feature curves are used. Press the OK button to perform the operation once the tolerances have been adjusted to the current surface.
