M. Minas. Spezifikation von Diagrammeditoren mit automatischer Layoutanpassung. In H.Reichel, editor, Proc. 23. GI-Jahrestagung, Dresden, Reihe 'Informatik aktuell', pages 334--339. GI, September 1993.  Home/Search   Document Not in Database   Summary   Related Articles   Check

.... Work Many different formalisms have been proposed for the definition of VLs [MM96] In contrast to existing approaches using either algebraic techniques [ Usk94] or graph grammar approaches as presented by Gottler [Got87] Andries, Engels, Rekers, Schurr [Rek94,AER96] and Minas, Viehstaedt [Min93,MV95] our approach uses both for defining an alphabet and a language grammar. We use algebraic specification techniques to define graphical symbols, links and layout constraints in an axiomatic way. This seems to meet the definition of the very basic issues of a visual language in a natural way. ....

M. Minas. Spezifikation von Diagrammeditoren mit automatischer Layoutanpassung. In H.Reichel, editor, Proc. 23. GI-Jahrestagung, Dresden, Reihe 'Informatik aktuell', pages 334--339. GI, September 1993.

.... proposed for the definition of VLs (see [MM96] for a survey over the common approaches) In contrast to common approaches including algebraic techniques ( Usk94] as well as to the graph grammar approaches presented by Gottler ( Got87] Rekers, Schurr ( Rek94, AER96] and Minas, Viehstaedt ( Min93, MV95] our approach uses two different techniques for defining the alphabet on the one side and the language grammar on the other side. We use algebraic specification techniques to define graphical symbols, links and layout constraints in an axiomatic way. This seems to meet the definition of ....

M. Minas. Spezifikation von Diagrammeditoren mit automatischer Layoutanpassung. In H.Reichel, editor, Proc. 23. GI-Jahrestagung, Dresden, Reihe 'Informatik aktuell', pages 334--339. GI, Sept.1993.

....1 of defining a visual language by algebraic techniques is to have a theory behind that allows for further analysis of the language, like consistency checks, layout constraints, etc. Our work is closely related to others applying algebraic specification techniques [Usk94] or graph grammars [Min93, Rek94, Sch94] to visual languages. Although these approaches show nicely that algebraic specifications as well as graph grammars can be applied to visual language definition, and tool support for graphical editing can be generated, these approaches and also other common approaches [MM96] do not ....

....The other main difference in our approach is the possibility to explicitly defining the underlying symbols and links of the visual language. Rekers and Schurr base their language definition on a fixed number of atomic types containing allowed picture objects. The work of Minas and Viehstadt in [Min93, VM94, MV95] shows how diagram editors can be automatically generated from a user defined textual specification using the tool DiaGen. Techniques for all necessary activities in a graphical editor are provided, especially event automatas for the description of interactions in graphical user ....

M. Minas. Spezifikation von Diagrammeditoren mit automatischer Layoutanpassung. In H.Reichel, editor, Proc. 23. GI-Jahrestagung, Dresden, Reihe 'Informatik aktuell', pages 334--339. GI, September 1993.

....1. Cla en Lowe Erdmann in [CLWW94, CL95, EC96, CGL96] Scheme Evolution in Object Oriented Models A Graph Transformation Approach. Use of attributed graphs; modifications are described by graph transformation rules; without considerations wrt. graphical structure. 2. M. Minas Viehstadt in [Min93, VM94, MV95, VM95] DiaGen A Generator for Diagram Editors Based on a Hypergraph Model. Use of attributed hypergraphs; context free hypergraph replacement (restricts number of diagram classes) with considerations wrt. graphical structure. 3. M.Andries G.Engels in [And96, AE97] Graph ....

....pushout approach used for graph transformation, but the answer of the question if the double pushout approach is more comprehensive than the single pushout approach is beyond the scope of this paper. 3. 2 DiaGen A Generator for Diagram Editors based on a Hypergraph Model The preceding work is [Min93] where a specification of diagram editors based on hypergraph grammars is discussed together with automatic layout adjustment. In [VM94] the specification is extended by event automatas for the description of interaction in graphical user interfaces. The ideas have been implemented leading to a ....

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M. Minas. Spezifikation von Diagrammeditoren mit automatischer Layoutanpassung. In H.Reichel, editor, Proc. 23. GI-Jahrestagung, Dresden, Reihe 'Informatik aktuell', pages 334--339. GI, September 1993.

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