openswmm::transect Namespace Reference

Classes
struct	TransectData

Functions
void	buildTables (TransectData &td)
	Build tabulated geometry from station-elevation data.
void	buildCustomTables (TransectData &td, double y_full, const double *curve_x, const double *curve_y, int n_pts)
	Build tabulated geometry from a CUSTOM shape curve.
bool	buildFromStore (const TransectStore &ts, int index, double ucf_length, TransectData &td)
	Build one transect's geometry tables from the raw [TRANSECTS] store.

Variables
constexpr int	N_TRANSECT_TBL = 51

Function Documentation

buildCustomTables()

void openswmm::transect::buildCustomTables	(	TransectData &	td,
		double	y_full,
		const double *	curve_x,
		const double *	curve_y,
		int	n_pts )

Build tabulated geometry from a CUSTOM shape curve.

The shape curve defines normalized (y/yFull) vs (width/wMax). This function integrates area and computes hyd-radius tables that can be used by XSectBatch's per-link lookup kernel.

Parameters

td	[out] TransectData to populate (tables and full properties).
y_full	Full depth of the cross-section.
curve_x	Normalized depth values (y/yFull) from shape curve.
curve_y	Normalized width values (w/wMax) from shape curve.
n_pts	Number of curve points.

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buildFromStore()

bool openswmm::transect::buildFromStore	(	const TransectStore &	ts,
		int	index,
		double	ucf_length,
		TransectData &	td )

Build one transect's geometry tables from the raw [TRANSECTS] store.

Copies the store entry into td, applies the legacy parse-time transforms (Station = x·Xfactor/UCF; Elev = (y + Yfactor)/UCF with Yfactor = y_factor/UCF; banks = (x/UCF)·Xfactor — see transect.c::setParams/addStation) to the COPY only, then calls buildTables(). The store itself stays raw/display so [TRANSECTS] round-trips losslessly. Shared by PostParseResolver (per-store resolve pass) and swmm_link_set_xsect (IRREGULAR assignment of a transect added after open) — the two must stay bit-identical.

Parameters

ts	Raw transect store.
index	Store row to build.
ucf_length	UCF(LENGTH) for the model's unit system.
td	[out] Built tables.

Returns

false when the entry has no valid channel Manning's n (caller reports the error); true on success.

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buildTables()

void openswmm::transect::buildTables

(

TransectData &

td

)

Build tabulated geometry from station-elevation data.

Computes area, hydraulic radius, and width at each of N_TRANSECT_TBL equal depth increments from thalweg to maximum depth, then normalizes.

Parameters

td	[in/out] TransectData with stations/elevations filled. On output, tables and full-depth properties are set.

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Variable Documentation

N_TRANSECT_TBL

int openswmm::transect::N_TRANSECT_TBL = 51

constexpr