带有交叉线的流程图可以记为 OPML 吗？
是否有一个标准来引用 OPML 中的思维导图或流程图中的交叉线。例如，使用锚点和链接。好像gliffy等在线流程图编辑器可以导入OPML，但导出的只是xml，而不是OPML。简而言之：此流程图可以用 OPML 进行编码，还是 OPML 仅限于没有交叉引用的概述？
Is there a standard to reference cross-lines in a mindmap or flowchart in OPML.For example with anchors and links. It seems that flowchart editors online such as gliffy can import OPML but export is only xml, not OPML. Put simply: can this flowchart be coded in OPML, or is OPML limited to outlining without cross references?
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是的，但是您必须提出自己的编码约定，并且没有大纲软件知道如何利用该约定。
最简单的编码是三重存储，您通常将其视为 3 列的表，但在 OPML 中可能如下所示：
您可能还想为节点提供一个密钥，这样您就不会一遍又一遍地重复相同的长标签（就像规范化数据库一样）。
在您给出的具体示例中，它可能如下所示：
（等等）
如果你想了解更多关于这个概念的信息，RDF是一个通用的投影标准将图转化为树结构。
您绝对可以将 RDF 提升到 OPML，但是特定于 RDF 的工具可以利用图形结构并实际上用它做一些事情，而大纲程序只处理树，可能无法利用额外的信息。
但是，有一些基于图形模型构建的大纲工具。 Mac 版 Tinderbox 就是一个例子。
Yes, but you'd have to come up with your own conventions for how to encode it, and no outline software would know how take advantage of the convention.
The absolute simplest encoding would be a triple store, which you usually think of as a table of 3 columns, but in OPML could look like this:
You probably also want to give the nodes a key so you're not repeating the same long labels over and over again (just like normalizing a database).
In the specific example you gave, it might look like this:
(etc.)
If you want to know more about this concept, RDF is a generalized standard for projecting graphs into a tree structure.
You can absolutely lift RDF up into OPML, but RDF-specific tools can take advantage of the graph structure and actually do something with it, whereas outliners only deal with trees and probably can't take advantage of the extra information.
However, there are some outlining tools that are built on a graph model. Tinderbox for mac is one example.