图形中控件

鼠标控制

在【工作区】中，用户可以使用鼠标来控制工作区的显示效果。鼠标操作与Windows 系统的默认鼠标操作相同： When you click a structure or load object with the left mouse button, you select it. Double-click the object to open its "Edit Model" dialog box. You can use this functionality not only for the graphic objects in the work window, but also for the object entries in the Navigator.

When you hold down the Ctrl key, you can select several objects by clicking one after the other. You can remove an object from the selection by holding down the Shift key.

提示

Selected objects can be moved in the graphics by using the drag-and-drop function, or also copied by holding down the Ctrl key.

When you right-click an object, you open its shortcut menu. It offers object-related commands and functions. Shortcut menus are not only available in the graphics, but also in the navigator.

When you scroll with the mouse wheel, you maximize or minimize the displayed model. 当前鼠标指针所在的位置会作为缩放区域的中心。

With the pressed scroll wheel you can move the scene. 同时按住键盘上的 Ctrl 键和鼠标滚轮可以旋转模型；旋转模型也可以通过同时按住鼠标滚轮和鼠标右键实现。

Some mouse display options are indicated by a mouse icon, see table below.

	Move the scene around, press mouse wheel button
	Rotate scene, press mouse wheel button + right mouse button (ctrl + mouse wheel button)
	Zoom the scene, press shift + mouse wheel button

View Buttons

You can quickly and easily switch between the default views using the functions in Toolbar.

这些按钮具有以下功能：

	Set view
	Shows previous view
	Zoom with a rectangle on any object in the scene
	View all the models in the scene
	Select center of rotation
	Reset the centre of rotation to the default position
	Show/hide center of rotation
	Isometric view
	Perspective view