L-systems II
From GenerativeArt
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Current revision (22:38, 16 September 2013) (view source) (→Types of L-systems used in Generative Art: small edit) |
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* Bracketed OL-systems: these systems are deterministic and context free. The use of bracket notation allows the use of a stack that can remember and return to previous locations and headings. | * Bracketed OL-systems: these systems are deterministic and context free. The use of bracket notation allows the use of a stack that can remember and return to previous locations and headings. | ||
* Stochastic OL-systems: these systems are also context free but not deterministic. Rather than using a single mapping from predecessor to replacement string, these systems allow multiple replacements strings each with a probability of selection. | * Stochastic OL-systems: these systems are also context free but not deterministic. Rather than using a single mapping from predecessor to replacement string, these systems allow multiple replacements strings each with a probability of selection. | ||
| - | * Context Sensitive L-systems: these systems are deterministic but add the use of angle-brackets to either side of the strict-predecessor. To trigger replacement the context prior to | + | * Context Sensitive L-systems: these systems are deterministic but add the use of angle-brackets to either side of the strict-predecessor. To trigger replacement the context prior to and after the strict-predecessor must also match. Such systems can simulate the transmission of signals up and down the resulting tree. |
* Parametric OL-systems: these systems add one or more floating point quantities within parenthesis to one or more letters creating a predecessor word. In addition a test is applied to the corresponding quantity. Such systems allow the creation of non-quantized lengths for stem segments. | * Parametric OL-systems: these systems add one or more floating point quantities within parenthesis to one or more letters creating a predecessor word. In addition a test is applied to the corresponding quantity. Such systems allow the creation of non-quantized lengths for stem segments. | ||
* Parametric 2L-systems: these systems combine parameters and context sensitivity. Such systems can simulate models that involve the diffusion of substances throughout the tree. | * Parametric 2L-systems: these systems combine parameters and context sensitivity. Such systems can simulate models that involve the diffusion of substances throughout the tree. | ||
* Other Stochastic L-systems: as a practical matter a stochastic element can be added to any combination of context sensitive and parametric features. | * Other Stochastic L-systems: as a practical matter a stochastic element can be added to any combination of context sensitive and parametric features. | ||
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== Modeling using L-Systems in 3 Dimensions == | == Modeling using L-Systems in 3 Dimensions == | ||
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p4 : B(x) : x ≥ 1 → B(x - 1) | p4 : B(x) : x ≥ 1 → B(x - 1) | ||
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