LID.hpp File Reference

Low Impact Development (LID) control modules. More...

#include <vector>
#include <cstddef>

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Classes
struct	openswmm::lid::LIDGroupSoA
class	openswmm::lid::LIDSolver

Namespaces
namespace	openswmm
namespace	openswmm::lid

Enumerations
enum class	openswmm::lid::LIDType : int {   openswmm::lid::BIO_CELL = 0 ,   openswmm::lid::RAIN_GARDEN = 1 ,   openswmm::lid::GREEN_ROOF = 2 ,   openswmm::lid::INFIL_TRENCH = 3 ,   openswmm::lid::PERM_PAVEMENT = 4 ,   openswmm::lid::RAIN_BARREL = 5 ,   openswmm::lid::VEG_SWALE = 6 ,   openswmm::lid::ROOF_DISCON = 7 }

Variables
constexpr int	openswmm::lid::SURF = 0
constexpr int	openswmm::lid::SOIL = 1
constexpr int	openswmm::lid::STOR = 2
constexpr int	openswmm::lid::PAVE = 3
constexpr int	openswmm::lid::N_LAYERS = 4

Detailed Description

Low Impact Development (LID) control modules.

Supports 8 LID types with a layered vertical model: surface → soil → storage → drain

Vectorization strategy: Group all LID units of the same type across all subcatchments into contiguous arrays (similar to XSectGroups). Each LID type uses the same flux-rate formulas — batch-compute over all units of that type simultaneously.

LID type groups (SoA per type):

• BIO_CELL group: N units → batch biocellFluxRates()
• PERM_PAVEMENT group: M units → batch pavementFluxRates()
• etc.

Note

Legacy reference: src/legacy/engine/lid.c, lidproc.c

Author

Caleb Buahin caleb.nosp@m..bua.nosp@m.hin@g.nosp@m.mail.nosp@m..com

Copyright

Copyright (c) 2026 HydroCouple. All rights reserved.

License\n MIT License