Manual/PartI/Navigating in 3D Space
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Navigating in 3D Space
在3D空间中畅游
Blender lets you work in three-dimensional space, but our monitor screens are only two-dimensional. To be able to work in three dimensions, you must be able to change your viewpoint as well as the viewing direction of the scene. This is possible in all of the 3D Viewports. While we will describe the 3D Viewport Window, most other windows use an equivalent series of functions. For example, it is possible to translate and zoom a Buttons Window and its Panels.
Blender让你在三维空间工作, 但我们的显示屏只有二维。要能在三维空间中工作，你必须能有如场景观察方向一样方便的改变视点。这点在全部3D视口可以做到。当我们描述一个3D视口窗口时，其他窗口也提供了相同的函数。比如，你可以平移或放大一个按钮窗口（Buttons Window）和它的面板（Panels）。
The viewing direction (rotating)
观察方向（旋转）
Blender provides three default viewing directions: Side, Front, and Top. Blender uses a right-hand coordinate system with the Z axis pointing upwards, "side" corresponds to looking along the X axis, in the negative direction; "front" along the Y axis; and "top" along the Z axis. You can select the viewing direction for a 3D Viewport with the View Menu entries (A 3D Viewport's view menu.) or by pressing the hotkeys NUM3 for "side", NUM1 for "front", and NUM7 for"top".
Blender提供了3种默认的观察方向：侧视图，正视图，和俯视图。Blender使用右手坐标系，在这个坐标系中，Z轴指向纸外。因此，侧视图对应于从X轴延负方向观察，正视图对应于从Y轴方向观察，俯视图对应于从Z轴方向观察。你可以在View菜单中的A 3D Viewport's view menu.选择3D视口的观察方向，或者，按热键NUM3选择侧视图，热键NUM1选择正视图，热键NUM7选择俯视图。
| Hotkeys:
Remember that most hotkeys affect the window that has focus, so check that the mouse cursor is in the area you want to work in before your use the hotkeys! |
| 热键:
记住,所有的热键只影响当前具有焦点的窗口，所以请在使用热键前确认鼠标指针在相应的工作区中。 |
Apart from these three default directions, the view can be rotated to any angle you wish. Click and drag MMB on the Viewport's area: If you start in the middle of the window and move up and down or left and right, the view is rotated around the middle of the window. If you start at the edge and don't move towards the middle, you can rotate around your viewing axis. Play around with this function until you get a feel for it. To change the viewing angle in discrete steps, use NUM8 and NUM2 (which correspond to vertical MMB dragging), or use NUM4 and NUM6 (which correspond to horizontal MMB dragging).
除了这些默认的方向，视区可以随意的转动任何角度。按下MMB并拖动鼠标来改变视口区域：如果最初在窗口的正中，并上下左右移动，视口就会绕窗口正中旋转。如果最初在边界，并没有移动到正中，则可以绕观察坐标轴进行旋转。反复练习直到你能熟练应用为止。为了非连续的改变观察角度，可以使用NUM8和NUM2（对应于垂直拖动MMB），或使用NUM4和NUM6（对应于水平拖动MMB）。
Translating and Zooming the View
平移或放大视区
按下SHIFT并在3D视区中滚动MMB，可以平移视区。使用快捷键CTRL-NUM8、CTRL-NUM2、CTRL-NUM4、CTRL-NUM6进行非连续旋转。
To translate the view, hold down SHIFT and drag MMB in the 3D Viewport. For discrete steps, use the hotkeys CTRL-NUM8, CTRL-NUM2, CTRL-NUM4 and CTRL-NUM6 as with rotating. You can zoom in and out by holding down CTRL and dragging MMB. The hotkeys are NUM+ and NUM-. The View>>Viewport Navigation sub-menu holds these functions too.
按下SHIFT并在3D视区中拖动MMB，可以平移视区。使用快捷键CTRL-NUM8、CTRL-NUM2、CTRL-NUM4、CTRL-NUM6进行非连续旋转。 你也可以按下CTRL并拖动MMB对视区进行缩放。热键是NUM+和NUM-。View>>Viewport Navigation子菜单也能完成这些功能。
| Wheel Mouse:
If you have a wheel mouse, you can perform all of the actions that you would do with NUM+ and NUM- by rotating the wheel (MW). |
| 滚轮鼠标: M |
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