Static per-cell weights mapping raingage rainfall onto the 2D mesh. More...

#include <vector>

Include dependency graph for RainfallInterpolator.hpp:

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Classes
class	openswmm::twoD::RainfallInterpolator
	Builds and applies static rainfall-interpolation weights for the mesh. More...

Namespaces
namespace	openswmm

namespace	openswmm::twoD

Detailed Description

Static per-cell weights mapping raingage rainfall onto the 2D mesh.

Precomputes, once, the weights that distribute the located raingages' rainfall onto every 2D cell centroid, then applies them each step as a sparse weighted sum. Gage POSITIONS are constant for a run, so only the per-step gage VALUES vary — making this a one-time build() + cheap per-step apply().

Scheme: natural-neighbour (Laplace) weights inside the convex hull of the located gages; inverse-distance weighting (power 2) for cells outside the hull. Laplace weights reproduce a linear rainfall field exactly inside the hull, with no polygon-area integration (the weight for neighbour g is the length of the shared Voronoi facet divided by the distance to g). The Delaunay triangulation of the gage sites is built with a small self-contained Bowyer–Watson routine — gage counts are tiny (typically < 30), so there is no external geometry dependency.

See also: SurfaceRouter2D::initialize / updateRainfall, SolverOptions2D::RainfallMode

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

License\n MIT License

Classes

Namespaces

Detailed Description