extractEigenModes
Extracts the count lowest-frequency vibrational eigenmodes of this shape's interior, by rasterizing it to a grid and solving the discrete clamped- or free-membrane eigenproblem on it.
Return
The requested modes, ascending by EigenMode.eigenvalue.
Parameters
Number of modes to extract, ordered from lowest to highest frequency.
Grid cells along the longer side of the shape's bounding box; the shorter side is scaled to match the shape's aspect ratio. Higher values resolve finer boundary detail and higher-frequency modes at the cost of a larger eigenproblem to solve.
Source of the eigensolver's random initial vectors. Defaults to a fixed seed (Random(0)) for reproducible results.
Whether the shape's boundary is pinned (EigenModeBoundaryCondition.DIRICHLET, the default) or free (EigenModeBoundaryCondition.NEUMANN).