[Unity 组件参考手册]桌面：动画视图指南之编辑曲线

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Curves can be used for many different things and there are several different controls in Unity that use curves that can be edited.曲线可以在很多组件中使用，编辑曲线 有几种不同的方式。    The Animation View uses curves to animate properties over time in an Animation Clip.
    动画视图中可以使用曲线更改动画剪辑的可编辑动画属性。    The Animation View.动画视图
    Script components can have member variables of type AnimationCurve that can be used for all kinds of things. Clicking on those in the Inspector will open up the Curve Editor.
    脚本组件的成员变量中有动画曲线这种类型，可以用于各种事情。在曲线编辑器中点击它们可以查看。    The Curve Editor.曲线编辑器
    The Audio Source component uses curves to control rolloff and other properties as a function of distance to the Audio Source.
    音源组件中的 距离函数中 使用曲线控制声音衰减和其他性能。（只有3D声音中有这个）    Distance function curves in the AudioSource component in the Inspector.
    距离函数曲线是音源组件的一部分 While these controls have subtle differences, the curves can be edited in the exact same way in all of them. This page explains how to navigate and edit curves in those controls.虽然这些组件控制上有细微的差别，但是曲线的编辑是相同的。本页面介绍了如何浏览和编辑这些组件中的曲线。
Adding and Moving Keys on a Curve 在曲线中添加和移除键A key can be added to a curve by double-clicking on the curve at the point where the key should be placed. It is also possible to add a key by right-clicking on a curve and select Add Key from the context menu.在曲线上想要添加控制键的点上，双击可以添加控制键（key），也可以在想要添加控制键的点上，右键鼠标，选择添加键（Add Key）Once placed, keys can be dragged around with the mouse:添加控制键后，控制键可以被鼠标拖动。    Click on a key to select it. Drag the selected key with the mouse.
    点击控制键选中，用鼠标拖动它
    To snap the key to the grid while dragging it around, hold down Command on Mac / Control on Windows while dragging.
    选中该控制键，在mac上按住Command 或者在windows上按住ctrl，拖动鼠标 可以移除控制键 It is also possible to select multiple keys at once:也可以一次选择多控制键：    To select multiple keys at once, hold down Shift while clicking the keys.
    按住shift键，点击选择控制键，可以一次性选择多个
    To deselect a selected key, click on it again while holding down Shift.
    要取消选择某个键，按住shift键，再次点击该控制键
    To select all keys within a rectangular area, click on an empty spot and drag to form the rectangle selection.
    可以按住鼠标左键，拖动鼠标，画出一个矩形，即可选中矩形中的所有控制键。
    The rectangle selection can also be added to existing selected keys by holding down Shift.
    按住shift 再次框选（按住鼠标左键，拖动鼠标，画出一个矩形），可以连续选择控制键。 Keys can be deleted by selecting them and pressing Delete, or by right-clicking on them and selecting Delete Key from the context menu.想要删除控制键，可以选中该键，按下del，也可以鼠标右键点击删除。
Navigating the Curve View 曲线视图导航When working with the Animation View you can easily zoom in on details of the curves you want to work with or zoom out to get the full picture.在动画视图工作时，你可以方便地放大曲线的细节，或者缩小去看全部曲线。You can always press F to frame-select the shown curves or selected keys in their entirely.你可以选择选择曲线或者选择控制键，按下F键 ，去查看它们。（想查看一个控制键，选中控制键，按F,想查看整条曲线，可以再曲线面板随便点击下，别点击在控制点上，按下Ｆ）
Zooming 缩放You can zoom the Curve View using the scroll-wheel of your mouse, the zoom functionality of your trackpad, or by holding Alt while right-dragging with your mouse.你可以使用鼠标滚轮来缩放，还可以同时按下alt键和鼠标右键，拖动鼠标。You can zoom on only the horizontal or vertical axis:你可以只在水平轴或垂直轴上缩放：    zoom while holding down Command on Mac / Control on Windows to zoom horizontally.
    按住mac的Command /windows的ctrl键，同时滑动鼠标滚轮，可以横轴水平缩放。
    zoom while holding down Shift to zoom vertically.
    按住shift，并滑动滚轮，可以垂直水平缩放 Furthermore, you can drag the end caps of the scrollbars to shrink or expand the area shown in the Curve View.此外，你可以拖动滚动条来扩大曲线视图的显示的面积。
Panning 平移You can pan the Curve View by middle-dragging with your mouse or by holding Alt while left-dragging with your mouse.你可以 按住鼠标中间滚轮，并拖动鼠标，或者按住Alt+左键，拖动鼠标，来浏览曲线。
Editing Tangents 编辑切线A key has two tangents - one on the left for the ingoing slope and one on the right for the outgoing slope. The tangents control the shape of the curve between the keys. The Animation View have multiple tangent types that can be used to easily control the curve shape. The tangent types for a key can be chosen by right-clicking the key.控制键有两条切线，左侧切线控制左侧曲线，右侧切线控制右面曲线。切线控制控制键两侧的曲线形状。动画视图有多个切线类型，可以用来方便地控制曲线的形状。控制键的切线类型可以选择通过右键单击控制键，弹出的菜单选择。
Right-click a key to select the tangent type for that key.
右键单击控制键，选择切线模式In order for animated values to change smoothly when passing a key, the left and right tangent must be co-linear. The following tangent types ensure smoothness:为了顺利改变控制键的值，左切线和右切线在一条线上，下面的切线类型可以确保平滑度：    Auto: The tangents are automatically set so make the curve go smoothly through the key.
    自动：中设定曲线通过该控制键的平滑度。
    Free Smooth: The tangents can be freely set by dragging the tangent handles. They are locked to be co-linear to ensure smoothness.
    自由平滑模式：切线可以自由地设定，通过拖动切线控制柄。两条切线是在同一水平线上，以确保平滑。
    Flat: The tangents are set to be horizontal. (This is a special case of Free Smooth.)
    水平：切线是水平的（是一种特殊的自由平滑切线）Sometimes smoothness is not desired. The left and right tangent can be set individually when the tangents are Broken. The left and right tangent can each be set to one of the following tangent types:平滑有时候是不希望的。可以单独设置的左切线和右切线使用破损模式（Broken）。左侧和右侧切线每一个都可以设置以下切线类型：    Free: The tangent can be freely set by dragging the tangent handle.
    自由： 通过拖动切线控制柄，自由调整切线
    Linear: The tangent points towards the neighboring key. A linear curve segment can be made by setting the tangents at both ends to be Linear.
    线性：切线控制柄指向相邻的控制键（key），线性曲线是设置切线的两端的控制键决定的。
    Constant: The curve retains a constant value between two keys. The value of the left key determines the value of the curve segment.
    恒值：曲线的上两个控制键之间保持一个恒定值。由左侧的键的值确定曲线形状。
【来源：互联网】
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