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# Topic: Leaf node

###### In the News (Wed 24 Apr 19)

 PlanetMath: leaf node (of a tree) A leaf of a tree is any node which has degree of exactly 1. Put another way, a leaf node of a rooted tree is any node which has no child nodes. This is version 2 of leaf node (of a tree), born on 2002-03-02, modified 2002-03-03. planetmath.org /encyclopedia/Leaf.html   (81 words)

 Signal resolution and type conversion The children of the internal node represent the concurrent statements in the body of the architecture corresponding to the component instantiation statement. The drivers of the signal are represented by the leaf nodes, shown in Figure 11. Each leaf node corresponds to a concurrent statement (which is ultimately a process statement) that drives this signal, and contains the id of this source, and the value of the driver. www.ececs.uc.edu /~paw/tyvis/doc/node23.html   (595 words)

 wheat stages   (Site not responding. Last check: 2007-10-10) More nodes are added by linear extension (i.e., the string gets longer) of the stem by growth at its upper most point (the growing point or stem apex).The first 6 nodes are leaf producing (or vegetative). The leaf is attached to the stem at its originating node. The first leaf is the coleoptile, which is essentially a bladeless leaf that is used to punch through the soil at germination and emergence. www.cips.msu.edu /wheat/wheatstages.htm   (1163 words)

 Leaf Node Objects Leaf nodes specify lights, geometry, and sounds; provide special linking and instancing capabilities for sharing scene graphs; and provide a view platform for positioning and orienting a view in the virtual world. The Fog leaf node is an abstract class that defines a common set of attributes that control fog, or depth cueing, in the scene. The ExponentialFog leaf node extends the Fog leaf node by adding a fog density that is used as the exponent of the fog equation. java.sun.com /products/java-media/3D/forDevelopers/j3dguide/LeafNodes.doc.html   (9514 words)

 Cprogramming.com Tutorial: Binary Trees It is the leaf on the left which has a lesser key value (ie, the value used to search for a leaf in the tree), and it is the leaf on the right which has an equal or greater key value. The node storing the 10, represented here merely as 10, is the root node, linking to the left and right child nodes, with the left node storing a lower value than the parent node, and the node on the right storing a greater value than the parent node. The case where the root node is still NULL will be taken care of by the insert function that is nonrecursive and available to non-members of the class. www.cprogramming.com /tutorial/lesson18.html   (1402 words)

 Determining Corn Leaf Stages (Purdue Univ.)   (Site not responding. Last check: 2007-10-10) This method determines leaf stage in corn by counting the number of leaves on a plant with visible leaf collars, beginning with the lowermost, short, rounded-tip true leaf and ending with the uppermost leaf with a visible leaf collar. The leaf collar is the light-colored collar-like “band” located at the base of an exposed leaf blade, near the spot where the leaf blade comes in contact with the stem of the plant. Leaf counting then differs, though, by ending not with the uppermost leaf with a visible collar, but at that leaf that is at least 40 to 50 percent exposed from the whorl. www.agry.purdue.edu /ext/corn/news/articles.03/LeafStaging-0520.html   (967 words)

 Node (Java 3D 1.3.2) Returns the collidable value; this value determines whether this node and it's children, if a group node, can be considered for collision purposes; if it is set to false, then neither this node nor any children nodes will be traversed for collision purposes; the default value is true. For Leaf Nodes, component data can either be duplicated or be made a reference to the original data. Leaf Node cloneTree behavior is determined by the download.java.net /media/java3d/javadoc/1.3.2/javax/media/j3d/Node.html   (1926 words)

 Leaf Lab Review   (Site not responding. Last check: 2007-10-10) In a palmately compound leaf each leaflet is attached at the tip of the petiole rather than being spaced along the petiole as in pinnately compound leaves. Leaf arrangement is determined by the number of leaves found at each node. In alternate arrangement there is only one leaf per node, usually alternating from one side of the stem to an other as on moves from node to node. www.botany.hawaii.edu /nlc_biology/2470/lab/leaf_lab_review.htm   (649 words)

 IsoSurface Rendering API: Class OctreeLeafNode leaf nodes: leaf nodes have 8 data values and a minimum and maximum of those data values. It is the leaf nodes that are rendered. The minimum and maximum values may have to recurse all the way to the top of the tree because all parents are supposed to have the minimum and maximum values of all their children. www.cs.unh.edu /~sdb/rlaramee/javadoc/rlaramee/OctreeLeafNode.html   (479 words)

 ASDoc As nodes open and close, the tree maintains a list of all the viewable nodes in the order they will be viewed as you scroll through the tree. Thus, the ninth row of the tree might display a node that is a great-grandchild of the root node, but because of the way the branches have been opened, is currently displayed in the ninth row. As nodes open and close, that same node might move from the ninth row, to some other row, or not be associated with a row because its parent node was closed. livedocs.macromedia.com /flex/15/asdocs_en/mx/controls/Tree.html   (2293 words)

 A Simple Scene Graph API for OpenGL. Leaf nodes are those that actually make OpenGL calls or take other 'rendering' actions - they contain all of the geometric information in the scene. A leaf node is normally rendered in 'immediate' mode in OpenGL, so that changes you make to the leaf will be reflected on the screen on the next occasion that it's drawn. Nodes may also be stateless - but that isn't useful for any of the existing SSG leaf node types. plib.sourceforge.net /ssg/ssgLeaf.html   (1117 words)

 How to Use Trees Nodes that can't have children are leaf nodes. specifies methods for getting a particular node of the tree, getting the number of children of a particular node, determining whether a node is a leaf, notifying the model of a change in the tree, and adding and removing tree model listeners. Ensures that the node specified by the path is visible -- that the path leading up to it is expanded and the node is in the scroll pane's viewing area. www.iam.ubc.ca /guides/javatut99/uiswing/components/tree.html   (2543 words)

 AI Horizon: 2-3 Trees Each node can have up to three child nodes, but if there is only one data field in the node, the node cannot have more than two children. The child nodes are set so that data in the first sub-tree is less than the first data field, the data of the second sub-tree is greater than the first data field and less than the second data field, and the data of the third sub-tree is greater than the second data field. If the leaf node is the left child, shift the old data in the parent node to the right and insert the middle value in the parent node before the old data. www.aihorizon.com /essays/basiccs/trees/twothree.htm   (926 words)

 Leaf node - Wikipedia, the free encyclopedia In computer science, a leaf node is a node of a tree data structure that has zero child nodes. Often, leaf nodes are the nodes farthest from the root node. In the graph theory tree, a leaf node is a vertex of degree 1 other than the root (except when the tree has only one vertex; then the root, too, is a leaf). en.wikipedia.org /wiki/Leaf_node   (274 words)

 Information Structures Now I can be added to the node containing g h j, r can be added to the node containing m s, x can be added to the node containing m r s;  c can be added to the node a b d e making this node full. If the entry that is to be deleted is not in a leaf, then its immediate predecessor (or successor) under the natural order of keys is guaranteed to be in a leaf. If the leaf contains the minimum number, then we look at the two leaves that are immediately adjacent to each other and are children of the same node. www.louisville.edu /~ecrouc01/CECS302/Lecture28.htm   (913 words)

 Variable Granularity Locking First, it is inefficient in that when a transaction tries to lock a node, the system must check the lock status of all nodes in the subtree rooted by the node and the path from the node to the root. An intention lock on a node served two purposes: First, it summarizes the locked status of its descendents, thereby reducing the need to check their individual locked status when the node is to be locked. When releasing alock on a node it must ensure that the node lock status is restored, that is, the status reverts to the one it was before the transaction locked it. www.cs.unc.edu /~dewan/242/s06/notes/trans/node9.html   (667 words)

 VFML: DecisionTree.h File Reference Return the index of the class that is predicted most commonly by leaf nodes in dt. The new node splits on a threshold on a continuous attribute and adds children to dt for values of attNum < and >= the threshold. The new node splits on the values of a discrete attribute and adds one child to dt for each value of attribute attNum. www.cs.washington.edu /dm/vfml/DecisionTree_8h.html   (1249 words)

 Tutorial: Leaf Pages Leaf pages are pages that are attached to nodes representing the tips of the Tree of Life, i.e., these nodes are not expected to have any subgroups. Leaf Node property can only be attached to nodes that do not have any descendant nodes. By marking your leaf nodes you help us to keep track of how many species are represented on the Tree of Life Project at any given time. tolweb.org /tree/sep/tutorial/tutorial14.html   (501 words)

 [No title] % An leaf node is a single OOT string, with length up the the maximum % length of a string in OOT. inherit Node in "node.tu" % Imports and exports % ------------------------------------------------------------------ % In addition to the imports and exports of its parent class, Node, % the leafNode class exports these two subprograms: export SetLeafValue, GetLeafValue % Instance variables % ------------------------------------------------------------------ % This is the variable that stores the actual node information. Since it % is a leaf node, its parent points to it and takes care of the % freeing. www.cs.toronto.edu /~dianeh/148/96s/a5/leaf.tu   (636 words)

 4 Leaf Correspondence When an element is inserted into the (M)PQ, no nonleaf node becomes a leaf node (except possibly the node for the newly inserted item). Element 10, which is not a leaf in Figure 5(a), becomes a leaf because of the insertion. Notice that the deletion process moves an element from a leaf node to a nonleaf node. www.jea.acm.org /ARTICLES/Vol5Nbr2/node4.html   (1057 words)

 Dr. Dobb's | Color Quantization using Octrees | July 22, 2001   (Site not responding. Last check: 2007-10-10) The child subtrees are discarded, and the reducible node becomes a leaf node. Each leaf node maintains a count of the number of image pixels containing that color and a sum of the RGB instances. When a leaf node is reached, the palette index in the leaf node is the appropriate quantization value. www.ddj.com /184409805?pgno=10   (2132 words)

 ComponentArt - Product Forums You are correct in stating that leaf nodes are not expandable by definition; I used the example of the plus/minus image of parent nodes to illustrate the position which NoExpandImageUrl deals with. The two properties you are inquiring about allow the same differentiation for leaf nodes: an icon, and an additional (optional) image to indicate the unexpandability of the node. LeafNodeImageUrl is the node icon, and NoExpandImageUrl is rendered to the left of it, as part of the tree structure. www.componentart.com /forums/ShowPost.aspx?PostID=193   (452 words)

 Class TwoThreeTreeNode This node's left child (if node is not a leaf node), or left thread (if node is a leaf node) This node's right child (if node is not a leaf node), or right thread (if node is a leaf node) Outputs: none Preconditions: this node is a 2-node Postconditions: this node is a three-node containing data www.ecst.csuchico.edu /~webbj/csci298c-2/lab3/doc/TwoThreeTreeNode.html   (433 words)

 Deletion Invoke FindLeaf to locate the leaf node L containing E. Stop if the record was not found. Given a leaf node L from which an entry has been deleted, eliminate the node if it has too few entries and relocate its entries. Re-insert all entries of nodes in set Q. Entries from eliminated leaf nodes are re-inserted in tree leaves as described in Algorithm Insert, but entries from higher-level nodes must be placed higher in the tree, so that leaves of their dependent subtrees will be on the same level as leaves of the main tree. www.cs.utexas.edu /users/mitult/research/ug/seminar/node23.html   (348 words)

 [No title] The asterisks represent nodes; the node at the top is the root, the tree's ``starting point.'' The arcs between nodes are called branches. The nodes are ordered so that all keys in a node's left subtree are less than the key of the object at the node, and all keys in a node's right subtree are greater than the key of the object at the node. There is a third variation, post-order traversal, which prints a node's value after the contents of the left and right subtrees are printed. www.cis.ksu.edu /~schmidt/300s05/Lectures/Week7b.html   (1841 words)

 java.net: MultiSplitPane: Splitting Without Nesting Leaf nodes represent components, dividers represent the gaps between components that the user can drag around, and splits represent rows or columns. Dragging a divider between two Split nodes laid out horizontally (left to right) beside each other renders dimensions of both nodes to be inconsistent with the actual drag. Even though one might not prefer to use two horizontal Split nodes side-by-side (instead of combining them to be one split node), I thought that this might fix some bugs (unknown) in the layout. today.java.net /pub/a/today/2006/03/23/multi-split-pane.html   (2835 words)

 Chapter 4: Trees   (Site not responding. Last check: 2007-10-10) node height: max path length to a leaf Basic Idea: an accessed node is pushed to the root by a series of AVL tree rotations Reason: it may push other nodes almost as deep as the raised node used to be www.utdallas.edu /~ravip/cs3345/slidesweb/node3.html   (351 words)

 [No title] Leaf nodes are nodes which have no descendants * that are not dataNodes. Each leaf node may have one or more data * nodes. The value for each key found in the leaf node is stored * in one of the data nodes. web.mit.edu /kolya/sipb/sfs/adb/leafNode.h   (450 words)

 Insertion Inserting index records for new data tuples is similar to insertion in a B-tree in that new index records are added to the leaves, nodes that overflow are split, and splits propagate up the tree. If node split propagation caused the root to split, create a new root whose children are the two resulting nodes. Ascend from a leaf node L to the root, adjusting covering rectangles and propagating node splits as necessary. www.cs.utexas.edu /users/mitult/research/ug/seminar/node22.html   (287 words)

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