2D geometric model

A 2D geometric model is a geometric model of an object as a two-dimensional figure, usually on the Euclidean or Cartesian plane.

Even though all material objects are three-dimensional, a 2D geometric model is often adequate for certain flat objects, such as paper cut-outs and machine parts made of sheet metal. Other examples include circles used as a model of thunderstorms, which can be considered flat when viewed from above.[1]

2D geometric models are also convenient for describing certain types of artificial images, such as technical diagrams, logos, the glyphs of a font, etc. They are an essential tool of 2D computer graphics and often used as components of 3D geometric models, e.g. to describe the decals to be applied to a car model. Modern architecture practice "digital rendering" which is a technique used to form a perception of a 2-D geometric model as of a 3-D geometric model designed through descriptive geometry and computerized equipment.[2]

2D geometric modeling techniques

• simple geometric shapes
• boundary representation
• Boolean operations on polygons

See also

• 2D geometric primitive
• Computational geometry
• Digital image

References

1. Nissen, Silas Boye; Haerter, Jan O. (September 24, 2021). "Circling in on Convective Self-Aggregation". Journal of Geophysical Research: Atmospheres. 126 (20). arXiv:1911.12849. Bibcode:2021JGRD..12635331N. doi:10.1029/2021JD035331. S2CID 244074835.
2. Dresp, Birgitta; Silvestri, Chiara; Motro, René (2007). "Which geometric model for the curvature of 2-D shape contours?". Spatial Vision. 20 (3): 219–64. doi:10.1163/156856807780421165. PMID 17524256. S2CID 35702710.