The parameters in this tab allow you to change the geometry of the erasing area.
Shape
In this box you can select the shape of the area. The shape is only changed if the checkbox is active.
Center
Set the coordinates of the center of a rectangular or elliptical area.
Size
Set the size of a rectangular or elliptical area.
Width
Specify the thickness of an area defined by a polyline.
Join
Allows you to define the appearance of angles between two consecutive strokes of a polyline.
Start cap
You can specify the initial shape of the polyline.
End cap
You can specify the final shape of the polyline.
Corner Smoothing
This parameter allows you to specify whether corners should be truncated, rounded or left as they are.