centroid() [4/7]

glm::vec3 MayaFlux::Kinesis::centroid ( std::span< const std::byte >  bytes, size_t  stride, size_t  offset = 0  )

inlinenoexcept

Arithmetic centroid of the positions in interleaved vertex bytes.

Every Kakshya vertex record is 60 bytes with the position at offset 0, but any stride and offset work, so readback bytes, node vertex data and MeshData all go through here without a typed copy.

Parameters

bytes	Interleaved records. A trailing partial record is ignored.
stride	Bytes per record.
offset	Byte offset of the vec3 position within a record.

Returns

Mean position, or the zero vector when no whole record fits or stride is too small to hold a position.

Definition at line 174 of file Morphology.hpp.

{
    if (stride < offset + sizeof(glm::vec3))
        return glm::vec3(0.0F);
    const size_t count = bytes.size() / stride;
    if (count == 0)
        return glm::vec3(0.0F);
    glm::vec3 acc(0.0F);
    for (size_t i = 0; i < count; ++i)
        acc += position_at(bytes, stride, offset, i).value_or(glm::vec3(0.0F));
    return acc / static_cast<float>(count);
}

References count, offset, and position_at().

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