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In computer graphics, the winged edge data structure is a way to represent polygon meshes in computer memory. It is a type of boundary representation and describes both the geometry and topology of a model. Three types of records are used: vertex records, edge records, and face records. Given a reference to an edge record, one can answer ...
Introduced by Baumgart in 1975, winged-edge meshes explicitly represent the vertices, faces, and edges of a mesh. This representation is widely used in modeling programs to provide the greatest flexibility in dynamically changing the mesh geometry, because split and merge operations can be done quickly.
Much like Winged Edge, quad-edge structures are used in programs to store the topology of a 2D or 3D polygonal mesh. The mesh itself does not need to be closed in order to form a valid quad-edge structure. Using a quad-edge structure, iterating through the topology is quite easy. Often, the interface to quad-edge topologies is through directed ...
Visual difference between sphere (green) and Catmull-Clark subdivision surface (magenta) from a cube. The Catmull–Clark algorithm is a technique used in 3D computer graphics to create curved surfaces by using subdivision surface modeling. It was devised by Edwin Catmull and Jim Clark in 1978 as a generalization of bi-cubic uniform B-spline ...
The Winged Victory of Samothrace, or the Niké of Samothrace, [2] is a votive monument originally found on the island of Samothrace, north of the Aegean Sea. It is a masterpiece of Greek sculpture from the Hellenistic era, dating from the beginning of the 2nd century BC (190 BC). It is composed of a statue representing the goddess Niké ...
The doubly connected edge list (DCEL), also known as half-edge data structure, is a data structure to represent an embedding of a planar graph in the plane, and polytopes in 3D. This data structure provides efficient manipulation of the topological information associated with the objects in question (vertices, edges, faces).
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