2D geometric model

2D geometric model

A 2D geometric model is a geometric model of an object as 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.

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.

2D geometric modeling techniques

*simple geometric shapes
*boundary representation
*Boolean operations

ee also

*computational geometry
*digital image


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • Geometric model — Geometric model(l)ing is the construction or use of geometric models. Geometric models are used in computer graphics, computer aided design and manufacturing, and many applied fields such as medical image processing. Geometric models can be built …   Wikipedia

  • Model theory — This article is about the mathematical discipline. For the informal notion in other parts of mathematics and science, see Mathematical model. In mathematics, model theory is the study of (classes of) mathematical structures (e.g. groups, fields,… …   Wikipedia

  • Geometric dimensioning and tolerancing — (GD T) is a system for defining and communicating engineering tolerances. It uses a symbolic language on engineering drawings and computer generated three dimensional solid models for explicitly describing nominal geometry and its allowable… …   Wikipedia

  • Model selection — is the task of selecting a statistical model from a set of candidate models, given data. In the simplest cases, a pre existing set of data is considered. However, the task can also involve the design of experiments such that the data collected is …   Wikipedia

  • Model-based definition — (MBD), also known as digital product definition (DPD), is the practice of using 3D digital data (such as solid models and associated metadata) within 3D CAD software to provide specifications for individual components and product assemblies. The… …   Wikipedia

  • geometric hallucination —    Also known as geometrical hallucination, geometric visual hallucination, and optogeometric illusion. All four terms can be traced to the Greek noun geometria, which means land surveying. They are used to denote a * formed visual hallucination… …   Dictionary of Hallucinations

  • Geometric hashing — In computer science, geometric hashing is a method for efficiently finding two dimensional objects represented by discrete points that have undergone an affine transformation. (Extensions exist to some other object representations and… …   Wikipedia

  • Geometric primitive — The term geometric primitive in computer graphics and CAD systems is used in various senses, with common meaning of atomic geometric objects the system can handle (draw, store). Sometimes the subroutines that draw the corresponding objects are… …   Wikipedia

  • Geometric invariant theory — In mathematics Geometric invariant theory (or GIT) is a method for constructing quotients by group actions in algebraic geometry, used to construct moduli spaces. It was developed by David Mumford in 1965, using ideas from the paper… …   Wikipedia

  • Geometric Description Language — In computer aided design, Geometric Description Language (GDL) is the programming language of ArchiCAD library parts. GSM is the file format of these CAD objects. Area of usageThese objects are similar to blocks in AutoCAD, but unlike blocks,… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”