GroIMP wiki - 01_user_documentation:07_rgg_xl

Relational Growth Grammars

Anonymous (anonymous@undisclosed.example.com) — 2025-12-12T14:35:04+00:00

Relational Growth Grammars Growth grammars are a rule-based approach to the modelling of dynamic systems. In contrast to conventional imperative programming languages, rule-based approaches provide a natural and concise way of modelling: Most systems to be modeled behave according to a set of rules, and our perception works this way and not imperatively using a list of operations which have to be processed step by step.

XL and Java extension

Anonymous (anonymous@undisclosed.example.com) — 2025-01-30T11:53:09+00:00

XL and Java extension The programming language XL is defined as an extension of the Java programming language. XL Language specification The complete specification can be found at . Elements of this section highlight some parts of the specification used in other part of the wiki.

Model graph

Anonymous (anonymous@undisclosed.example.com) — 2026-02-07T11:42:01+00:00

Model graph This section presents the model graphs. Model graphs (or query graphs) are used at runtime to perform queries onto a data graph. The query graph is responsible for matching the pattern on the data graph and executing the production statements. Each instance of a model graph is linked to a data graph, thus, it is possible to use different model graph of the same type, to run rules on different data graphs. Also, several model graph can be linked to the same data graph.

Turtle geometry

Anonymous (anonymous@undisclosed.example.com) — 2025-11-01T09:34:08+00:00

Turtle geometry In GroIMP 3d movement in the scene are managed by turtle commands. In turtle geometry a sequence of commands can be used to describe a structure. These commands are processed by a “turtle” and change either the state or the position of the turtle. By doing so the turtle can add cylinders (with the additions of RGG also other objects) to the scene.

Additional formats

Anonymous (anonymous@undisclosed.example.com) — 2025-10-22T15:30:28+00:00

Additional formats This section presents additional formats. L-Sytem in GROGRA-Syntax GroIMP's RGG Plugin contains an import filter for non-sensitive GROGRA L-systems (*.lsy -files). They can be opened and edited as for XL files. However, not all features of GROGRA are supported yet.