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01_user_documentation:07_rgg_xl:02_xl:05_rule:01_lindenmayer

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01_user_documentation:07_rgg_xl:02_xl:05_rule:01_lindenmayer [2025/09/04 12:26] – removed - external edit (Unknown date) 127.0.0.101_user_documentation:07_rgg_xl:02_xl:05_rule:01_lindenmayer [2025/09/04 12:47] (current) – gaetan
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 +====== Lindenmayer-form ======
  
 +<code java>
 +==>
 +</code>
 +
 +Graph replacement rule, where one sub-graph (often only one object) is replaced by another graph. The connections between the host graph and the newly-inserted graph are recovered. That means that if, e.g., in a one-dimensional graph ''[ A B C D ]'' the node ''B'' is replaced by a node ''G'', then ''G'' will be inserted into the graph with the original connecting edges to the neighbourhood of the node ''B: [ A G C D ]''. The blank space indicates here a successor edge in XL. ''%%Axiom ==> A B C D; B ==> G;%%''
 +
 +**Note**: This is a from the module [[:01_user_documentation:07_rgg_xl:02_xl:08_object:01_module:05_instantiation|instantiation declarations]] (which also use the symbol ''%%==>%%'').