A regular, z-extruded polygon centered on the origin. More...

#include <IntersectRegion.hh>

Inheritance diagram for celeritas::orangeinp::Prism:

Public Member Functions
	Prism (int num_sides, real_type apothem, real_type halfheight, real_type orientation)
	Construct with inner radius (apothem), half height, and orientation.

void	build (IntersectSurfaceBuilder &) const final
	Build surfaces.

void	output (JsonPimpl *) const final
	Write output to the given JSON object.

bool	encloses (Prism const &other) const
	Whether this encloses another sphere.

int	num_sides () const
	Number of sides.

real_type	apothem () const
	Inner radius.

real_type	halfheight () const
	Half the Z height.

real_type	orientation () const
	Rotation factor.

Additional Inherited Members
Protected Member Functions inherited from celeritas::orangeinp::IntersectRegionInterface
	IntersectRegionInterface ()=default

	CELER_DEFAULT_COPY_MOVE (IntersectRegionInterface)

Detailed Description

A regular, z-extruded polygon centered on the origin.

This is the base component of a G4Polyhedra (PGON). The default rotation is to put a y-aligned plane on the bottom of the shape, so looking at an x-y slice given an apothem a, every shape has a surface at \( y = -a \):

n=3 is a triangle with a flat bottom, point up
n=4 is a square with axis-aligned sides
n=6 is a flat-top hexagon

The "orientation" parameter is a scaled counterclockwise rotation on \([0, 1)\), where zero preserves the orientation described above, and unity replicates the original shape but with the "p0" face being where the "p1" originally was. With a value of 0.5:

n=3 is a downward-pointing triangle
n=4 is a diamond
n=6 is a pointy-top hexagon

The documentation for this class was generated from the following files:

Public Member Functions

Additional Inherited Members

Detailed Description