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- Abstract_graphical_data_type abstract "An abstract graphical data type (AGDT) is an extension of an abstract data type for computer graphics. AGDTs provide the advantages of the ADTs with facilities to build graphical objects in a structured way. Formally, an AGDT may be defined as a "class of graphical objects whose logical behavior is defined by a set of graphical characteristics and a set of graphical operations".AGDTs were introduced in 1979 by Nadia Magnenat Thalmann and Daniel Thalmann.The most important tool in this graphical extension is the 3-D graphical type—the figure type. The syntax is described in Figure 2. The word "figure" is a keyword. The formal parameter section, the declaration, and the body are similar to the corresponding elements in a procedure.To define a figure type, one must find the characteristics of the figure, which become the parameters; find the algorithm that allows the user to build the figure with the help of the parameters.To build the figures, typical graphical statements should be used like: moveabs, moverel, lineabs, and linerel to draw vectors, and include to define an existing figure as part of a new one.For example, a pyramid with four vertices can be defined asA tree can be defined by 3-D graphical types aswhere BRANCHES is a file of kinds of branches, NBRANCHES is the number of branches, POSITION is the position of the trunk, HEIGHT is the height of the trunk, and LENGTH is thelength of the branches.A forest of trees can be defined asAbstract graphical types have been implemented as an extension of the PASCAL programming language called MIRA-3D.".
- Abstract_graphical_data_type wikiPageID "47556321".
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- Abstract_graphical_data_type wikiPageOutDegree "8".
- Abstract_graphical_data_type wikiPageRevisionID "682992939".
- Abstract_graphical_data_type wikiPageWikiLink Abstract_data_type.
- Abstract_graphical_data_type wikiPageWikiLink Category:Data_types.
- Abstract_graphical_data_type wikiPageWikiLink Computer_graphics.
- Abstract_graphical_data_type wikiPageWikiLink Daniel_Thalmann.
- Abstract_graphical_data_type wikiPageWikiLink Nadia_Magnenat_Thalmann.
- Abstract_graphical_data_type wikiPageWikiLink Pascal_(programming_language).
- Abstract_graphical_data_type wikiPageWikiLink Pyramid.
- Abstract_graphical_data_type wikiPageWikiLink Tree_(computer_science).
- Abstract_graphical_data_type wikiPageWikiLink Tree_(data_structure).
- Abstract_graphical_data_type wikiPageWikiLinkText "Abstract graphical data type".
- Abstract_graphical_data_type wikiPageWikiLinkText "abstract graphical data type".
- Abstract_graphical_data_type hasPhotoCollection Abstract_graphical_data_type.
- Abstract_graphical_data_type wikiPageUsesTemplate Template:Notability.
- Abstract_graphical_data_type wikiPageUsesTemplate Template:Reflist.
- Abstract_graphical_data_type subject Category:Data_types.
- Abstract_graphical_data_type hypernym Extension.
- Abstract_graphical_data_type type Software.
- Abstract_graphical_data_type comment "An abstract graphical data type (AGDT) is an extension of an abstract data type for computer graphics. AGDTs provide the advantages of the ADTs with facilities to build graphical objects in a structured way.".
- Abstract_graphical_data_type label "Abstract graphical data type".
- Abstract_graphical_data_type wasDerivedFrom Abstract_graphical_data_type?oldid=682992939.
- Abstract_graphical_data_type isPrimaryTopicOf Abstract_graphical_data_type.