有人懂一点树理论么？
恳请大家将这个理论翻译一下，谢谢！Define a simply connected tree T with leaf nodes Pi
,
i = 1, 2,…N. Define by l
ij
the dis-tance between nodes
Piand P
j
as measured along the edges of the tree; that
is, l
ij
is the sum of the lengths of all the edges between
nodes P
iand P
j. For each leaf node P
i
, define a leaf
vertex ui
in the unit square u
i,x∈, u
i,y∈. Then
a crease pattern exists that transforms the unit square
into a uniaxial base whose projection is T if
(a) |ui
–uj
| ≥ l
ij
for every i,j;
(b) every leaf vertex belongs to a polygon whose
boundary is composed of segments, each of
which is either on the convex hull of the leaf
vertices or is a line along which |ui
–uj
| = l
ij
;
(c) the projection of a path around each polygon
follows a simple path around some subset of
the tree that does not cross any edge of the tree
more than twice.
Furthermore, in such a base, Pi
is the projection of ui
for all i.
定义一个单连通T树与叶子节点圆周率
,
i = 1、2、…N。定义了l
Ij
节点之间的dis-tance
Piand P
J
树的沿边缘;衡量
是,我
Ij
是所有的长度的总和之间的边缘
节点P
我和P
每个叶子节点P j。
我
,定义一个叶子
顶点ui
在单位广场
我,x∈,u
我,y∈。然后
折痕模式存在转换单位正方形
成一个单轴的投影是T如果基础
(一)| ui
-uj
|≥l
Ij
对于每一个
理论很难的，这是我实践得出的结果，劝楼主还是不要学了 万事通360 发表于 2014-8-2 21:36 static/image/common/back.gif
理论很难的，这是我实践得出的结果，劝楼主还是不要学了
x谢谢你好意劝解
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