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The original tree is converted to a binary tree: each node with more than two children is replaced by a sub-tree in which each node has exactly two children. Each region representing a node (starting from the root) is divided to two, using a line that keeps the angles between edges as large as possible.
Map of wood-filled areas in the United States, circa 2000 [1]. In the United States, the forest cover by state and territory is estimated from tree-attributes using the basic statistics reported by the Forest Inventory and Analysis (FIA) program of the Forest Service. [2]
The tree was named after the titan Hyperion from Greek mythology. [9] [8] Hyperion is estimated to be between 600 and 800 years old [2] [10] [11] and contain 530 m 3 (18,600 cu ft) of wood. [3] Coast redwoods in Redwood National Park. The exact location of Hyperion is nominally secret but is available via internet search. [12]
A tree structure, tree diagram, or tree model is a way of representing the hierarchical nature of a structure in a graphical form. It is named a "tree structure" because the classic representation resembles a tree, although the chart is generally upside down compared to a biological tree, with the "stem" at the top and the "leaves" at the bottom.
A radial tree, or radial map, is a method of displaying a tree structure (e.g., a tree data structure) in a way that expands outwards, radially. It is one of many ways to visually display a tree, [2] [3] with examples dating back to the early 20th century. [4] In use, it is a type of information graphic. Radial vs. triangular tree layout
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The New York City Tree Map is an interactive map by the parks department that catalogues more than 850,000 trees in the city. [19] The NYC Department of Parks observes Earth Day and Arbor Day. [18] Street trees as a metaphor for urban life were popularized in the 1943 novel A Tree Grows in Brooklyn. [20]
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