- compas.numerical.dr_numpy(vertices, edges, fixed, loads, qpre, fpre=None, lpre=None, linit=None, E=None, radius=None, callback=None, callback_args=None, **kwargs)
Implementation of the dynamic relaxation method for form findong and analysis of articulated networks of axial-force members.
vertices (list) – XYZ coordinates of the vertices.
edges (list) – Connectivity of the vertices.
fixed (list) – Indices of the fixed vertices.
loads (list) – XYZ components of the loads on the vertices.
qpre (list) – Prescribed force densities in the edges.
fpre (list, optional) – Prescribed forces in the edges.
lpre (list, optinonal) – Prescribed lengths of the edges.
linit (list, optional) – Initial length of the edges.
E (list, optional) – Stiffness of the edges.
radius (list, optional) – Radius of the edges.
callback (callable, optional) – User-defined function that is called at every iteration.
callback_args (tuple, optional) – Additional arguments passed to the callback.
xyz (array) – XYZ coordinates of the equilibrium geometry.
q (array) – Force densities in the edges.
f (array) – Forces in the edges.
l (array) – Lengths of the edges
r (array) – Residual forces.
For more info, see 1.
De Laet L., Veenendaal D., Van Mele T., Mollaert M. and Block P., Bending incorporated: designing tension structures by integrating bending-active elements, Proceedings of Tensinet Symposium 2013,Istanbul, Turkey, 2013.