Limit Scale Constraint 限定缩放约束
An object or bone can be scaled along the X, Y and Z axes. This constraint restricts the amount of allowed scaling along each axis, through lower and upper bounds.
Important
This constraint does not tolerate negative scale values (those you might use to mirror an object...): when you add it to an object or bone, even if no axis limit is enabled, nor the Affect Transform option, as soon as you scale your object, all negative scale values are instantaneously inverted to positive ones... And the boundary settings can only take strictly positive values.
值得注意的是，尽管约束限制了其视觉和渲染位置，约束对象的数据块仍然允许(默认)对象或骨骼的缩放超出最小和最大值确定的范围(只要是正值)，其缩放值可以在 变换 面板中看到。当缩放物体，并试图超出限定边界，视觉上以及渲染时，物体仍然被限定在边界内，但在内部，其缩放仍会变化为超出限制。如果约束被移除，约束对象将跳转到其内部指定的缩放大小。
Similarly, if its owner has an internal scale that is beyond the limits, scaling it back into the limit area will appear to do nothing until the internal scale values are back within the limit threshold (unless you enabled the Affect Transform option, see below, or your owner has some negative scale values).
为某个轴向设置相等的最小值和最大值，可以锁定约束对象在该轴向的缩放... 尽管这样是可以的，但使用 变换属性 的轴向锁定功能可能更简单。
选项
限定缩放面板。
- X, Y, Z 最小值/最大值
这几个复选框分别用于启用约束对象在选定 空间(Space) 的X, Y, Z轴向的缩放限制。下方的数值框分别用于控制其上下限。
Note
如果最小值大于最大值，约束的效果等同于上下限相等。
- 影响变换
As pointed out before by default, even though visually constrained, and except for the negative values, the owner can still have scales out of bounds (as shown by the Transform panel). When you enable this checkbox, this is no longer possible, the owner transform properties are also limited by the constraint. However, note that, the constraint does not directly modify the scale values: you have to scale its owner one way or another for this to take effect.
- 拥有者
This constraint allows you to choose in which space to evaluate its owner's transform properties. See common constraint properties for more information.
- 影响
Controls the percentage of affect the constraint has on the object. See common constraint properties for more information.