====== Surface3D Parameters ======

Surface3D has a set of application-wide parameters that allows users to control how they interact with surface models.

===== Auto Hole Threshold =====

Specifies the size (in number of voxels) of the largest volume that will be filled by the auto hole-filling command. This command works by finding each unlabelled voxel next to a labelled voxel and using a flood-fill algorithm to find all unlabelled voxels that are connected to it. If the size of this region is less than //Auto Hole Threshold,// then the region is labelled with the current label.

The default value is 2000.

===== Decimation Factor =====

Specifies the approximate percentage of polygons that will be removed from the object surface during decimation (//Model -> Decimate Surface Model//).

The default value is 0.2, meaning that approximately 20% of the polygons will be removed each time the decimate command is performed.

===== Feature Edge Smoothing =====

Turns on (true) and off (false) smoothing of sharp interior edges on the surface model during smoothing (//Model -> Smooth Surface Model//).

The default value is false.

===== Paintbrush Radius =====

The radius (in voxels) of the circular paintbrush that is used for label painting and label erasing.

The default value is 5.

===== Relaxation Factor =====

Specifies the relaxation factor for the Laplacian smoothing performed by the smoothing command (//Model -> Smooth Surface Model//).

The default value is 0.2.

===== Smoothing Iterations =====

The number of iterations of Laplacian smoothing performed by the smoothing command (//Model -> Smooth Surface Model//).

The default value is 300.

===== Text Radius =====

Scale factor for POI and landmark text labels.

The default value is 0.75.

===== Undo Limit =====

The maximum number of label editing actions that can be undone.

The default value is 10.