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> Unreal Engine API Reference > Runtime > Chaos > Chaos > TCylinderSpecializeSamplingHelper > TCylinderSpecializeSamplingHelper::ComputeGoldenSpiralPointsUnoriented

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TCylinderSpecializeSamplingHelper::ComputeGoldenSpiralPointsUnoriented

Generates evenly spaced points on a cylinder, oriented about the Z axis, varying from [-Height/2, Height/2].

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References

Module	Chaos
Header	/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/Cylinder.h
Include	#include "Chaos/Cylinder.h"

Syntax

static void ComputeGoldenSpiralPointsUnoriented
(
    TArray< TVector< T, 3 >> & Points,
    const T Radius,
    const T Height,
    const int32 NumPoints,
    const bool IncludeEndCaps,
    int32 SpiralSeed
)

Remarks

Generates evenly spaced points on a cylinder, oriented about the Z axis, varying from [-Height/2, Height/2].

The "golden" part is derived from the golden ratio; stand at the center, turn a golden ratio of whole turns, then emit a point in that direction.

Points are generated starting from the bottom of the cylinder, ending at the top. Contiguous entries in `Points_ generally will not be spatially adjacent.

Points_ to append to. Radius is the radius of the cylinder. `Height is the height of the cylinder. NumPoints_ is the number of points to generate. IncludeEndCaps determines whether or not points are generated on the end caps of the cylinder. `SpiralSeed is the starting index for golden spiral generation. When using this method to continue a spiral started elsewhere, `SpiralSeed_ should equal the number of particles already created.

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