public void Test_FenceTests_Clear()
{
Fence fence = makeSimpleRectangleFence();
fence.Clear();
Assert.False(fence.IsRectangle, "IsRectangle not initialised to false");
Assert.False(fence.HasVertices, "New fence has vertices");
Assert.True(fence.MinX > fence.MaxX && fence.MinY > fence.MaxY,
"Fence extents are not reveresed");
}
/// <summary>
/// Removes all state related to a polygonal filter and sets the spatial mask type to off
/// </summary>
public void ClearSpatial()
{
IsSpatial = false;
Fence.Clear();
}