peclet::core::geom::prim Namespace Reference

Classes
struct	Box
	Axis-aligned solid box of half-extents (hx, hy, hz), centred on the origin. More...
struct	Capsule
	Solid capsule about the y axis: a segment from (0,-halfLength,0) to (0,+halfLength,0) swept by radius. More...
struct	Complement
	Negation: solid and void swap. Composes with any leaf (a container is the complement of a body). More...
struct	Cone
	Solid capped cone (frustum) about the y axis: radius rBottom at y = -halfHeight, radius rTop at y = +halfHeight. More...
struct	Ellipsoid
	Solid ellipsoid with semi-axes (rx, ry, rz), centred on the origin. More...
struct	HollowCylinder
	Solid tube wall about the y axis: outer radius rOuter, full height height, wall thickness thickness (the solid is the shell, the bore is void). More...
struct	HollowCylinderShell
	Solid tube wall about the z axis as a CSG intersection of half-spaces: max(r - rOuter, rInner - r, |z| - height/2). More...
struct	Rounded
	Offset (rounded) shape: the inner solid grown outward by radius. More...
struct	Sphere
	Solid ball of radius radius, centred on the origin. More...
struct	Superquadric
	Solid superquadric with semi-axes (rx, ry, rz) and exponent e: the implicit |x/rx|^e + |y/ry|^e + |z/rz|^e = 1. More...
struct	Torus
	Solid torus with its axis along y: tube of minor radius minorRadius swept around a circle of radius majorRadius in the xz-plane. More...

Functions
template<class Shape , class Real >
PECLET_HD Vec3< Real >	gradient (const Shape &s, Vec3< Real > p, Real h)
	Generic outward normal by central differences — the fallback for any leaf until rung 2 supplies closed-form grad(), and permanently for sampled (grid) fields.

Function Documentation

gradient()

template<class Shape , class Real >

PECLET_HD Vec3< Real > peclet::core::geom::prim::gradient	(	const Shape &	s,
		Vec3< Real >	p,
		Real	h
	)

Generic outward normal by central differences — the fallback for any leaf until rung 2 supplies closed-form grad(), and permanently for sampled (grid) fields.

NOT normalised: callers that need a unit normal divide by the length, as dem's narrow-phase does today.

Definition at line 59 of file primitives.hpp.

References peclet::core::Vec3< Real >::x, peclet::core::Vec3< Real >::y, and peclet::core::Vec3< Real >::z.

Referenced by peclet::core::geom::prim::Cone< Real >::grad(), peclet::core::geom::prim::Ellipsoid< Real >::grad(), and peclet::core::geom::prim::Superquadric< Real >::grad().