sdynpy.core.sdynpy_shape.rigid_body_error

rigid_body_error(geometry, rigid_shapes, **rigid_shape_kwargs)

Computes rigid shape error based on geometries

Analytic rigid body shapes are computed from the geometry. The supplied rigid_shapes are then projected through these analytic shapes and a residual is computed by subtracting the projected shapes from the original shapes. This residual is a measure of how “non-rigid” the provided shapes were.

Parameters

• geometry (Geometry) – Geometry from which analytic rigid body shapes will be created

• rigid_shapes (ShapeArray) – ShapeArray consisting of nominally rigid shapes from which errors are to be computed

• **rigid_shape_kwargs (various) – Additional keywords that can be passed to the Geometry.rigid_body_shapes method.

Returns

• coordinates (CoordinateArray) – The coordinates corresponding to the output residual array

• residual (np.ndarray) – Residuals computed by subtracting the provided shapes from those same shapes projected through the analytical rigid body shapes.