public static DisplayItemCircle GenDisplayItemCircle(DisplayItemList list, GePoint center, double radius)
{
DisplayItemCircle Circle = new DisplayItemCircle(
center, radius);
if (list != null)
list.AddItem(Circle);
return Circle;
}
// Support the operation for selection
protected override Manipulator OnItemSelection(DisplayItemCircle SelectedItem)
{
try
{
CircleNode Node = (CircleNode)m_Node;
return new CircleChangeManipulator(Node);
}
catch
{
return null;
}
}
public override void GenerateGraphics(DisplayItemList DLList)
{
if (null == DLList) return;
if (m_dRadius < 0)
return;
//DisplayItemList DisplayList = new DisplayItemList();
DisplayItemCircle Circle = new DisplayItemCircle(
m_CenterPoint, m_dRadius);
DLList.AddItem(Circle);
DisplayItemPoint CenterPoint = new DisplayItemPoint(m_CenterPoint);
DLList.AddItem(CenterPoint);
}
protected virtual Manipulator OnItemSelection(DisplayItemCircle SelectedItem)
{
return null;
}