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Determine the Orientation of a Reinforcement Bulb

Source: R/sideBulb.R
sideBulb.Rd

Identifies whether the bulb (the upper extension of the reinforcement) is oriented to the left or right of the flat face. The criterion is based on the vertex coordinates of the 3D object (mesh3d): the reinforcement is divided according to its mean Z coordinate, and the X positions of both halves are compared.

Usage

sideBulb(ref)

Arguments

ref

A mesh3d object representing the reinforcement. It must contain the vb matrix, where rows correspond to the X, Y, and Z coordinates of the vertices.

Value

Logical indicating the bulb orientation:

  • TRUE if the bulb protrudes to the left.

  • FALSE if the bulb protrudes to the right.

Details

The function calculates the mean Z coordinate to split the reinforcement into two parts: the upper part (including the bulb) and the lower part (excluding the bulb). Then, it compares the minimum X coordinates of both parts to determine the orientation. If the bulb has a smaller X position than the lower part, it is considered oriented to the left.