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8e159221
编写于
9月 21, 2018
作者:
D
duanjobs
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docs/api/zh/math/Box2.html
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@@ -11,208 +11,181 @@
<h1>
[name]
</h1>
<p
class=
"desc"
>
Represents a box in 2D space.
表示二维空间中的一个包围盒。
</p>
<h2>
Constructor
</h2>
<h2>
构造函数(Constructor)
</h2>
<h3>
[name]( [param:Vector2 min], [param:Vector2 max] )
</h3>
<p>
[page:Vector2 min] - (optional) [page:Vector2] representing the lower (x, y) boundary of the box.
Default is ( + Infinity, + Infinity ).
<br>
[page:Vector2 min] - (可选) [page:Vector2] 表示该盒子的下边界(x, y)。默认值为( + Infinity, + Infinity )。
<br>
[page:Vector2 max] - (optional) [page:Vector2] representing the upper (x, y) boundary of the box.
Default is ( - Infinity, - Infinity ).
<br
/><br
/>
Creates a [name] bounded by min and max.
[page:Vector2 max] - (可选) [page:Vector2] 表示该盒子的上边界(x, y)。默认值为( - Infinity, - Infinity )。
<br
/><br
/>
创建一个介于最小和最大值之间的[name]。
</p>
<h2>
Properties
</h2>
<h2>
属性(Properties)
</h2>
<h3>
[property:Vector2 min]
</h3>
<p>
[page:Vector2]
representing the lower (x, y) boundary of the box.
<br
/>
Default is ( + Infinity, + Infinity ).
[page:Vector2]
表示该盒子的下边界(x, y)。
<br
/>
默认值为( + Infinity, + Infinity )。
</p>
<h3>
[property:Vector2 max]
</h3>
<p>
[page:Vector2]
representing the lower upper (x, y) boundary of the box.
<br
/>
Default is ( - Infinity, - Infinity ).
[page:Vector2]
表示该盒子的上边界(x, y)。
<br
/>
默认值为( - Infinity, - Infinity )。
</p>
<h2>
Methods
</h2>
<h2>
方法(Methods)
</h2>
<h3>
[method:Vector2 clampPoint]( [param:Vector2 point], [param:Vector2 target] )
</h3>
<p>
[page:Vector2 point] - [page:Vector2] to clamp.
<br>
[page:Vector2 target] — the result will be copied into this Vector2.
<br
/><br
/>
[link:https://en.wikipedia.org/wiki/Clamping_(graphics) Clamps] the [page:Vector2 point] within the bounds of this box.
<br
/>
[page:Vector2 point] - clamp 的位置 ([page:Vector2])
<br>
[page:Vector2 target] — 结果会被复制到该二维向量中。
<br
/><br
/>
在该盒子范围内夹紧([link:https://en.wikipedia.org/wiki/Clamping_(graphics) Clamps])[page:Vector2 point]。
<br
/>
</p>
<h3>
[method:Box2 clone]()
</h3>
<p>
Returns a new [page:Box2] with the same [page:.min min] and [page:.max max] as this one.
</p>
<p>
返回一个新的[page:Box2],其[page:.min min]和[page:.max max]与此盒子相同。
</p>
<h3>
[method:Boolean containsBox]( [param:Box2 box] )
</h3>
<p>
[page:Box2 box] - [page:Box2 Box2] to test for inclusion.
<br
/><br
/>
Returns true if this box includes the entirety of [page:Box2 box]. If this and [page:Box2 box] are identical,
<br>
this function also returns true.
[page:Box2 box] - 要检查是否被包含的盒子。
<br
/><br
/>
如果盒子包含整个被检查盒子,则返回true。如果两者重叠,
<br>
也会返回true。
</p>
<h3>
[method:Boolean containsPoint]( [param:Vector2 point] )
</h3>
<p>
[page:Vector2 point] - [page:Vector2] to check for inclusion.
<br
/><br
/>
Returns true if the specified [page:Vector2 point] lies within or on the boundaries of this box.
[page:Vector2 point] - 要检查是否被包含的点[page:Vector2]。
<br
/><br
/>
如果指定的点([page:Vector2 point])位于盒子的边界内或边界上,则返回true。
</p>
<h3>
[method:Box2 copy]( [param:Box2 box] )
</h3>
<p>
Copies the [page:.min min] and [page:.max max] from [page:Box2 box] to this box.
将[page:Box2 box]的[page:.min min] 和 [page:.max max]复制到此盒子中。
</p>
<h3>
[method:Float distanceToPoint]( [param:Vector2 point] )
</h3>
<p>
[page:Vector2 point] - [page:Vector2] to measure distance to.
<br
/><br
/>
Returns the distance from any edge of this box to the specified point.
If the [page:Vector2 point] lies inside of this box, the distance will be 0.
[page:Vector2 point] - 要测量距离的点([page:Vector2])。
<br
/><br
/>
返回这个盒子的任何边缘到指定点的距离。如果这个点([page:Vector2 point])位于这个盒子里,距离将是0。
</p>
<h3>
[method:Boolean equals]( [param:Box2 box] )
</h3>
<p>
[page:Box2 box] - Box to compare with this one.
<br
/><br
/>
Returns true if this box and [page:Box2 box] share the same lower and upper bounds.
[page:Box2 box] - 要对比的盒子
<br
/><br
/>
如果这个盒子和被对比盒子具有相同的上下边界,则返回true。
</p>
<h3>
[method:Box2 expandByPoint]( [param:Vector2 point] )
</h3>
<p>
[page:Vector2 point] - [page:Vector2] that should be included in the box.
<br
/><br
/>
Expands the boundaries of this box to include [page:Vector2 point].
[page:Vector2 point] - 应该被盒子包含的点。
<br
/><br
/>
扩展盒子的边界来包含该点。
</p>
<h3>
[method:Box2 expandByScalar]( [param:float scalar] )
</h3>
<p>
[page:float scalar] - Distance to expand the box by.
<br
/><br
/>
Expands each dimension of the box by [page:float scalar]. If negative, the dimensions of the box
will be contracted.
[page:float scalar] - 盒子扩展的距离。
<br
/><br
/>
在每个维度上扩展参数scalar所指定的距离,如果为负数,则盒子空间将收缩。
</p>
<h3>
[method:Box2 expandByVector]( [param:Vector2 vector] )
</h3>
<p>
[page:Vector2 vector] - [page:Vector2] to expand the box by.
<br
/><br
/>
Expands this box equilaterally by [page:Vector2 vector]. The width of this box will be
expanded by the x component of [page:Vector2 vector] in both directions. The height of
this box will be expanded by the y component of [page:Vector2 vector] in both directions.
[page:Vector2 vector] - 按照该向量扩展。
<br
/><br
/>
在每个维度中按vector的数值进行扩展。宽度在两个方向上的扩展将由vector的x分量确定,
高度在两个方向上的扩展则由y分量确定。
</p>
<h3>
[method:Vector2 getCenter]( [param:Vector2 target] )
</h3>
<p>
[page:Vector2 target] — the result will be copied into this Vector2.
<br
/><br
/>
Returns the center point of the box as a [page:Vector2].
[page:Vector2 target] — 结果将被复制到此二维向量中。
<br
/><br
/>
以二维向量形式返回盒子的中心点。
</p>
<h3>
[method:Vector2 getParameter]( [param:Vector2 point], [param:Vector2 target] )
</h3>
<p>
[page:Vector2 point] -
[page:Vector2]
.
<br/>
[page:Vector2 target] —
the result will be copied into this Vector2.
<br
/><br
/>
[page:Vector2 point] -
二维向量([page:Vector2])
.
<br/>
[page:Vector2 target] —
结果将被复制到此二维向量中。
<br
/><br
/>
Returns a point as a proportion of this box's width and height.
返回一个点作为此盒子的宽度和高度的比例。
</p>
<h3>
[method:Vector2 getSize]( [param:Vector2 target] )
</h3>
<p>
[page:Vector2 target] —
the result will be copied into this Vector2.
<br
/><br
/>
[page:Vector2 target] —
结果将被复制到此二维向量中。
<br
/><br
/>
Returns the width and height of this box.
返回此盒子的宽度和高度。
</p>
<h3>
[method:Box2 intersect]( [param:Box2 box] )
</h3>
<p>
[page:Box2 box] - Box to intersect with.
<br
/><br
/>
Returns the intersection of this and [page:Box2 box], setting the upper bound of this box to the lesser
of the two boxes' upper bounds and the lower bound of this box to the greater of the two boxes'
lower bounds.
[page:Box2 box] - 要相交的盒子。
<br
/><br
/>
返回两者的相交后的盒子,并将相交后的盒子的上限设置为两者的上限中的较小者,将下限设置为两者的下限中的较大者。
</p>
<h3>
[method:Boolean intersectsBox]( [param:Box2 box] )
</h3>
<p>
[page:Box2 box] - Box to check for intersection against.
<br
/><br
/>
Determines whether or not this box intersects [page:Box2 box].
[page:Box2 box] - 用来检查相交的盒子。
<br
/><br
/>
确定该盒子是否和其相交。
</p>
<h3>
[method:Boolean isEmpty]()
</h3>
<p>
Returns true if this box includes zero points within its bounds.
<br>
Note that a box with equal lower and upper bounds still includes one point, the
one both bounds share.
如果这个盒子包含0个顶点,则返回true。
<br>
请注意,一个下上边界相等的的盒子仍然包括一个点,一个两个边界共享的点。
</p>
<h3>
[method:Box2 makeEmpty]()
</h3>
<p>
Makes this box empty.
</p>
<p>
使此盒子为空。
</p>
<h3>
[method:Box2 set]( [param:Vector2 min], [param:Vector2 max] )
</h3>
<p>
[page:Vector2 min] - (
required ) [page:Vector2] representing the lower (x, y) boundary of the box.
<br>
[page:Vector2 max] - (
required) [page:Vector2] representing the upper (x, y) boundary of the box.
<br
/><br
/>
[page:Vector2 min] - (
必须 ) 表示该盒子的下边界(x, y)。
<br>
[page:Vector2 max] - (
必须) 表示该盒子的上边界(x, y)。
<br
/><br
/>
Sets the lower and upper (x, y) boundaries of this box.
设置这个盒子的上下(x, y)的界限。
</p>
<h3>
[method:Box2 setFromCenterAndSize]( [param:Vector2 center], [param:Vector2 size] )
</h3>
<p>
[page:Vector2 center] -
Desired center position of the box
([page:Vector2]).
<br>
[page:Vector2 size] -
Desired x and y dimensions of the box
([page:Vector2]).
<br
/><br
/>
[page:Vector2 center] -
盒子所要设置的中心位置。
([page:Vector2]).
<br>
[page:Vector2 size] -
盒子所要设置的x和y尺寸
([page:Vector2]).
<br
/><br
/>
Centers this box on [page:Vector2 center] and sets this box's width and height to the values specified
in [page:Vector2 size].
使盒子的中心点位于[page:Vector2 center],并设置宽高为[page:Vector2 size]中指定的值。
</p>
<h3>
[method:Box2 setFromPoints]( [param:Array points] )
</h3>
<p>
[page:Array points] - Array of [page:Vector2 Vector2s] that the resulting box will contain.
<br
/><br
/>
Sets the upper and lower bounds of this box to include all of the points in [page:Array points].
[page:Array points] - 点的集合,由这些点确定的空间将被盒子包围。
<br
/><br
/>
设置这个盒子的上下边界,来包含所有设置在[page:Array points]参数中的点。
</p>
<h3>
[method:Box2 translate]( [param:Vector2 offset] )
</h3>
<p>
[page:Vector2 offset] - Direction and distance of offset.
<br
/><br
/>
Adds [page:Vector2 offset] to both the upper and lower bounds of this box, effectively moving this box
[page:Vector2 offset] units in 2D space.
[page:Vector2 offset] - 偏移方向和距离。
<br
/><br
/>
添加 [page:Vector2 offset] 到这个盒子的上下边界,实际上在2D空间移动这个盒子[page:Vector2 offset]个单位。
</p>
<h3>
[method:Box2 union]( [param:Box2 box] )
</h3>
<p>
[page:Box2 box] - Box that will be unioned with this box.
<br
/><br
/>
Unions this box with [page:Box2 box], setting the upper bound of this box to the greater of the
two boxes' upper bounds and the lower bound of this box to the lesser of the two boxes'
lower bounds.
[page:Box2 box] - 将要与该盒子联合的盒子
<br
/><br
/>
在[page:Box2 box]参数的上边界和该盒子的上边界之间取较大者,而对两者的下边界取较小者,这样获得一个新的较大的联合盒子。
</p>
<h2>
Source
</h2>
<h2>
源码(Source)
</h2>
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
</body>
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