National Repository of Grey Literature 6 records found  Search took 0.01 seconds. 
Systems of Parallel Grammars
Skácel, Jiří ; Horáček, Petr (referee) ; Meduna, Alexandr (advisor)
This article defines cooperating distributed grammar systems with E0L components instead of context-free grammars and discusses its generative power mainly in respect to ET0L systems. It recapitulates results about CD GS, then defines modified systems and shows that this combination has in most derivative modes equal strength to ET0L, except for terminating mode, which is shown to be more powerful. There are also explained examples of this new kind of systems.
Generator of 3D Objects Based on L-Systems
Kvita, Jakub ; Solár, Peter (referee) ; Vrábel, Lukáš (advisor)
The aim of this bachelor thesis was to create an interactive system for generating 3D models. The generator is based on L-systems as a kind of formal grammars and turtle graphics for 3D modeling. The application was created in Java SE using JOGL library as access point for OpenGL and rendering. The thesis analyze the theoretical basis of L-systems, turtle graphics and rendering 3D objects and then describes creation of application using the acquired knowledge.
L-systems online
Fišer, Marek ; Pelikán, Josef (advisor) ; Mráz, František (referee)
An L-system in its simplest form is a variant of a context-free grammar. Originally, L-systems were developed and are still mainly used for modeling plant growth, though with L-systems it is possible to create general fractals, models of towns or even music. However, anyone interested in L-systems and wanting to experiment with them may have difficulty finding an appropriate application. The goal of this work was to create an online system, suitable for a wide range of users, for working and experimenting with L-systems. The resulting solution consists of two parts. The first part is a universal, easily-expandable library for processing L-sys- tems. Expandability is achieved thanks to its modularity. All input is processed through interconnected components that are specialized in particular activities. The specialization of the components also contributes to the clarity and reliability of the whole processing system. The library is independent and multiplatform and can thus be readily used in other applications. The second part consists of a modern web interface designed to be under- standable for beginners and yet also capable of providing advanced features for more advanced users. Part of the site is a gallery of L-systems to which each user can contribute and which thus helps to create a user-community. The...
L-systems online
Fišer, Marek ; Pelikán, Josef (advisor) ; Mráz, František (referee)
An L-system in its simplest form is a variant of a context-free grammar. Originally, L-systems were developed and are still mainly used for modeling plant growth, though with L-systems it is possible to create general fractals, models of towns or even music. However, anyone interested in L-systems and wanting to experiment with them may have difficulty finding an appropriate application. The goal of this work was to create an online system, suitable for a wide range of users, for working and experimenting with L-systems. The resulting solution consists of two parts. The first part is a universal, easily-expandable library for processing L-sys- tems. Expandability is achieved thanks to its modularity. All input is processed through interconnected components that are specialized in particular activities. The specialization of the components also contributes to the clarity and reliability of the whole processing system. The library is independent and multiplatform and can thus be readily used in other applications. The second part consists of a modern web interface designed to be under- standable for beginners and yet also capable of providing advanced features for more advanced users. Part of the site is a gallery of L-systems to which each user can contribute and which thus helps to create a user-community. The...
Systems of Parallel Grammars
Skácel, Jiří ; Horáček, Petr (referee) ; Meduna, Alexandr (advisor)
This article defines cooperating distributed grammar systems with E0L components instead of context-free grammars and discusses its generative power mainly in respect to ET0L systems. It recapitulates results about CD GS, then defines modified systems and shows that this combination has in most derivative modes equal strength to ET0L, except for terminating mode, which is shown to be more powerful. There are also explained examples of this new kind of systems.
Generator of 3D Objects Based on L-Systems
Kvita, Jakub ; Solár, Peter (referee) ; Vrábel, Lukáš (advisor)
The aim of this bachelor thesis was to create an interactive system for generating 3D models. The generator is based on L-systems as a kind of formal grammars and turtle graphics for 3D modeling. The application was created in Java SE using JOGL library as access point for OpenGL and rendering. The thesis analyze the theoretical basis of L-systems, turtle graphics and rendering 3D objects and then describes creation of application using the acquired knowledge.

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