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Questions tagged [tree-structure]

110 questions
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Can't create proper Tree Structure in table using CSS

I have been trying to make a "connecting line - tree structure" for a tournament bracket system. However, it is more troubling than I thought. My goal is to have a line connecting the boxes such as http://gyazo.com/4ea425163a8f3e6901b464085421c449,…
RJC
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What is the most efficient way of storing complex, self-referencing tree structures in an SQL database?

I'm aware of and have used two methods in the past for basic tree structures: adjacency lists and nested sets. I understand several pros and cons to these approaches - e.g., that adjacency lists are quick to update but slow to query, that nested…
magnus
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Recursion in instance method in python

I am trying to define a recursive method to walk all the nodes of a tree. I defined the Tree as the following: class Tree(object): def __init__(self, value, lson=None, sibling=None): self.value = value if lson: …
oz123
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How to change the delegate to be an instance of an object

I'm new to ObjectiveC and am trying to parse an XML file as described in this article: https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/XMLParsing/Articles/ConstructingTrees.html Trouble is, I don't understand what the article…
acousticape
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Tree search function

Any node can have any number of children. To search this tree i wrote something like this function Search(key, nodes){ for (var i = 0; i < nodes.length; i++) { if (nodes[i].key == key) { return nodes[i]; } …
sarsnake
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do any binary alternatives to XML exist

XML is one way to organize information in a tree-structured manner. However, I am looking for a mechanism that lets my software applications conveniently and efficiently store, retrieve and manipulate arbitrary information organized in a…
sophia
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Unsupervised Feature extraction of dishes by building tree structure of ingerdients with Natural Language Processing

I am building a recommendation system for dishes. Consider a user eating french fries and rates it a 5. Then I want to give a good rating to all the ingredients that the dish is made of. In the case of french fires the linked words should be…
user1506145
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TreeStore DragNrop activity not reflected in TreeStore

I created a simple DragNDrop editor to modify a tree to be persisted in my db. (Using GXT 2.2.5 can't upgrade) I have a TreePanel constructed with a TreeStore. The TreePanel is both a TreePanelDragSource and TreePanelDropTarget. The drag/drop works…
user1776933
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Tree Diagrams click functions conflicting

I have two trees on the same page. The first is http://bl.ocks.org/1249394, and the other is http://bl.ocks.org/2503502. I followed the examples on these 2 links for my trees, with some alterations of course. I have included both on the same page.…
user1704514
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Tree diagram: multiple on one page

I am attempting to put 2 d3.js tree diagrams, as seen here http://bl.ocks.org/1249394 on one page. Both trees will be loaded with different data from Javascript objects. The first one will appear in:
and the second tree will…
user1684586
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Ajax not working. Output not showing up

I am having a problem using ajax in my code. How it is supposed to work is that index.php would pass values through to ajax.js, then go to further.php. In further.php a tree diagram will be generated and is supposed to be presented in a div in the…
user1684586
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Tree structure-starting with only root node onload

I am building a tree diagram as in: http://bl.ocks.org/2503502. I would like to have a tree with all the nodes collapsed, so the initial graph should contain only one node (the root). When the page loads, only the root node should be shown, then…
user1684586
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Change size of tree structure root node only

I am using the the code found here: http://bl.ocks.org/1249394 for this tree diagram. How do I change the the size of the root node only? I want the root node to have a different size than all the child nodes. How do I do this?
user1684586
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Rearranging the tree nodes and saving it back on a self-referencing table with EF

I have a self-referencing table structure working fine with EF, which I use to render a tree view. The EF entity looks like the following and I eagerly load the total structure. class ListItem { int Id; string Text; ListItem ParentItem; …
Ε Г И І И О
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What is the best way to persist a tree-like structure in iOS?

A client has provided me with some data that's in a tree-like structure. It's just composed of YES/NO questions. The ending results are relatively small strings (less than 100 characters), but some of the ending results end in large strings with…
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