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An ergograph is a graph that shows a relation between human activities and a seasonal year.The name was coined by Dr. Arthur Geddes of the University of Edinburgh.It can either be a polar coordinate (circular) or a cartesian coordinate (rectangular) graph, and either a line graph or a bar graph.
Stein praises the book's attempt to bridge mathematics and geography, and its potential use as a first step towards that bridge for practitioners. [2] Harris suggests it "in an introductory and applied context", and in combination with a more conventional textbook on geographic information systems.
A spatial network (sometimes also geometric graph) is a graph in which the vertices or edges are spatial elements associated with geometric objects, i.e., the nodes are located in a space equipped with a certain metric.
A transport network, or transportation network, is a network or graph in geographic space, describing an infrastructure that permits and constrains movement or flow. [1] Examples include but are not limited to road networks , railways , air routes , pipelines , aqueducts , and power lines .
This glossary of geography terms is a list of definitions of terms and concepts used in geography and related fields, including Earth science, oceanography, cartography, and human geography, as well as those describing spatial dimension, topographical features, natural resources, and the collection, analysis, and visualization of geographic ...
In mathematics, a Voronoi diagram is a partition of a plane into regions close to each of a given set of objects. It can be classified also as a tessellation . In the simplest case, these objects are just finitely many points in the plane (called seeds, sites, or generators).
A 3-map graph is a planar graph, and every planar graph can be represented as a 3-map graph. Every 4-map graph is a 1-planar graph , a graph that can be drawn with at most one crossing per edge, and every optimal 1-planar graph (a graph formed from a planar quadrangulation by adding two crossing diagonals to every quadrilateral face) is a 4-map ...
A gore is a sector of a curved surface [1] or the curved surface that lies between two close lines of longitude on a globe and may be flattened to a plane surface with little distortion. [ 2 ] The term has been extended to include similarly shaped pieces such as the panels of a hot-air balloon or parachute, [ 3 ] or the triangular insert that ...