grid_sdf.hpp File Reference

Sampled (grid) signed-distance field with trilinear interpolation. More...

#include <algorithm>
#include <vector>
#include "peclet/core/common/types.hpp"

Go to the source code of this file.

Classes
struct	peclet::core::geom::GridSdf
	A signed-distance field sampled on a regular axis-aligned grid (negative inside solid). More...

Namespaces
namespace	peclet
namespace	peclet::core
namespace	peclet::core::geom

Functions
template<typename S >
GridSdf	peclet::core::geom::sample (const S &shape, IVec< 3 > dims, Vec< 3 > origin, Vec< 3 > spacing)
	Sample any analytic SDF onto a grid, producing a GridSdf (e.g. to bake geometry for a solver).

Detailed Description

Sampled (grid) signed-distance field with trilinear interpolation.

This is how real geometry enters the Eulerian/Lagrangian solvers: an SDF sampled on a regular grid (x-fastest, matching the suite indexing and flow/dem's VTI fields). Values keep the suite sign convention (negative inside solid). Out-of-domain queries clamp to the nearest in-domain sample. Satisfies the same peclet::core::geom::Sdf concept as the analytic primitives, so solvers consume analytic and sampled geometry through one interface.

Definition in file grid_sdf.hpp.