Viewport
Encyclopedia
A viewport is a rectangular viewing region in computer graphics
, or a term used for optical components. It has several definitions in different contexts:
Computer graphics
Computer graphics are graphics created using computers and, more generally, the representation and manipulation of image data by a computer with help from specialized software and hardware....
, or a term used for optical components. It has several definitions in different contexts:
Computing
- In 3D computer graphics3D computer graphics3D computer graphics are graphics that use a three-dimensional representation of geometric data that is stored in the computer for the purposes of performing calculations and rendering 2D images...
it refers to the 2D rectangle used to project the 3D scene to the position of a virtual camera. A viewport is a region of the screen used to display a portion of the total image to be shown. - With respect to virtual desktopVirtual desktopIn computing, a virtual desktop is a term used with respect to user interfaces, usually within the WIMP paradigm, to describe ways in which the size of a computer's desktop environment is expanded beyond the physical limits of the screen's real estate through the use of software, This saves space...
s, the viewport is the visible portion of a 2D area which is larger than the visualization device. - In the ASP.NET MVCASP.NET MVC FrameworkThe ASP.NET MVC Framework is a web application framework that implements the model-view-controller pattern. Based on ASP.NET, it allows software developers to build a Web application as a composition of three roles: Model, View and Controller. A model represents the state of a particular aspect of...
software design pattern, the viewport represents a snapshot of the model at a given point, through a view, typically after domain logic has been applied to it.
Optical components
- In ManufacturingManufacturingManufacturing is the use of machines, tools and labor to produce goods for use or sale. The term may refer to a range of human activity, from handicraft to high tech, but is most commonly applied to industrial production, in which raw materials are transformed into finished goods on a large scale...
it refers to hermetically sealed optical components which are typically used for visual or broad band energy transmission into and out of vacuum systems. Single and multi-layer coatings can be added to viewports to optimize transmission performance. They describe where the selected object portion resides inside a window.