Zooming And Panning In Computer Graphics Pdf

File Name: zooming and panning in computer graphics .zip
Size: 1753Kb
Published: 26.03.2021

Skip to Main Content. A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity.

You can zoom in on the canvas to allow precision alignment and placement of objects, and you can zoom out to get a sense of the big picture or to see the path of a moving object. You can also pan the canvas to modify your view of a composition.

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI:

Zoom or pan the canvas in Motion

This is an exciting development especially because it holds promise that the same sort of technology could also be used for books. The zKimmer screen-shots above are from a magazine though they could easily be from a book and those below are from a newspaper. They both show how this interface facilitates navigating a resource that includes extensive pictures as well as text. Google Books already uses panning and zooming in a limited way, for navigating between pages, but a multi-page pan and zoom, as in zKimmer, would greatly simplify picture and text navigation. Other implementations of the Google Maps API for non-map graphic resources are a desktop collection of elegant books by the reclusive German techno-artist Markus Dressen , and a card set from the World Of Warcraft. An example of this is shown in the screenshots from videos on Seadragon linked below. Seadragon is a zooming-panning technology, owned by Microsoft, and used as a component in other tools, such as PhotoZoom, Silverlight, Photosynth, and various Microsoft mapping applications.

In cinematography and photography panning means swivelling a still or video camera horizontally from a fixed position. This motion is similar to the motion of a person when they turn their head on their neck from left to right. In the resulting image, the view seems to "pass by" the spectator as new material appears on one side of the screen and exits from the other, although perspective lines reveal that the entire image is seen from a fixed point of view. The term panning is derived from panorama , suggesting an expansive view that exceeds the gaze, forcing the viewer to turn their head in order to take everything in. Panning, in other words, is a device for gradually revealing and incorporating off-screen space into the image.

In computing , a zooming user interface or zoomable user interface ZUI , pronounced zoo-ee is a graphical environment where users can change the scale of the viewed area in order to see more detail or less, and browse through different documents. Information elements appear directly on an infinite virtual desktop usually created using vector graphics , instead of in windows. Users can pan across the virtual surface in two dimensions and zoom into objects of interest. For example, as you zoom into a text object it may be represented as a small dot, then a thumbnail of a page of text, then a full-sized page and finally a magnified view of the page. ZUIs use zooming as the main metaphor for browsing through hyperlinked or multivariate information. Objects present inside a zoomed page can in turn be zoomed themselves to reveal further detail, allowing for recursive nesting and an arbitrary level of zoom. When the level of detail present in the resized object is changed to fit the relevant information into the current size, instead of being a proportional view of the whole object, it's called semantic zooming.

Daniel Oliphant

Morphing: Morphing is an animation function which is used to transform object shape from one form to another is called Morphing. It is one of the most complicated transformations. This function is commonly used in movies, cartoons, advertisement, and computer games. In the third step, the key point of the first image transforms to a corresponding key point of the second image as shown in 3 rd object of the figure. Wrapping: Wrapping function is similar to morphing function. It distorts only the initial images so that it matches with final images and no fade occurs in this function.

Zooming facilitates data presentation on limited screen real-estate by allowing the users to alter the scale of the viewport such that it shows a decreasing fraction of the information space with an increasing magnification. Hence the system may first present a global overview of the information space for the benefit of orientation, and in a second step, the users can then dynamically re-allocate the screen space based on the information objects they are interested in. A navigation technique commonly used in conjunction with zooming is panning : a movement of the viewport over the information space at a constant scale. Skip to main content Skip to table of contents. This service is more advanced with JavaScript available. Encyclopedia of Database Systems Edition.

Daniel Oliphant

In cinematography and photography panning means swivelling a still or video camera horizontally from a fixed position. This motion is similar to the motion of a person when they turn their head on their neck from left to right. In the resulting image, the view seems to "pass by" the spectator as new material appears on one side of the screen and exits from the other, although perspective lines reveal that the entire image is seen from a fixed point of view.

Panning And Zooming.

 - Уберите ногу. Взгляд Беккера упал на пухлые пальцы мужчины. Никакого кольца. Я так близок к цели, - подумал. - Ein Ring! - повторил Беккер, но дверь закрылась перед его носом.

Zooming Techniques

У всех сегодня красно-бело-синие прически. Беккер потянулся и дернул шнурок вызова водителя. Пора было отсюда вылезать.

Бринкерхофф сидел как на иголках. - Ты уверена, что мы должны его беспокоить. - Я не собираюсь его беспокоить, - сказала Мидж, протягивая ему трубку.

Zooming Techniques

Она подавляла его своей красотой, и всякий раз, когда он оказывался рядом, язык у него заплетался. Сейчас она держалась подчеркнуто сдержанно, и это пугало его еще сильнее. - Так в чем же проблема, Фил? - спросил Стратмор, открывая холодильник.

По выражению его лица было ясно: то, что он собирается сказать, не понравится директору и остальным. - Этот червь, - начал он, - не обычный переродившийся цикл. Это избирательный цикл. Иными словами, это червь со своими пристрастиями. Бринкерхофф открыл рот, собираясь что-то сказать, но Фонтейн движением руки заставил его замолчать.