dr
- compas_dr.solvers.dr(vertices, edges, fixed, loads, qpre, fpre=None, lpre=None, linit=None, E=None, radius=None, kmax=100, dt=1.0, tol1=0.001, tol2=1e-06, c=0.1, callback=None, callback_args=None)
Implementation of dynamic relaxation with RK integration scheme in pure Python.
- Parameters:
- verticeslist
XYZ coordinates of the vertices.
- edgeslist
Connectivity of the vertices.
- fixedlist
Indices of the fixed vertices.
- loadslist
XYZ components of the loads on the vertices.
- qprelist
Prescribed force densities in the edges.
- fprelist, optional
Prescribed forces in the edges.
- lprelist, optional
Prescribed lengths of the edges.
- linitlist, optoional
Initial length of the edges.
- Elist, optional
Stiffness of the edges.
- radiuslist, optional
Radius of the edges.
- kmaxint, optional
Maximum number of iterations.
- dtfloat, optional
The time step.
- tol1float, optional
Convergence criterion for the residual forces.
- tol2float, optional
Convergence criterion for the displacements in between interations.
- cfloat, optional
Damping factor for viscous damping.
- callbackcallable, optional
A user-defined callback that is called after every iteration. The callback will be called with
kthe current iteration,Xthe coordinates at iterationk,crit1, crit2the values of the stoppage criteria at iterationk, andcallback_argsthe optional additional arguments.- callback_argstuple, optional
Additional arguments to be passed to the callback.
- Returns:
- xyzarray
XYZ coordinates of the equilibrium geometry.
- qarray
Force densities in the edges.
- farray
Forces in the edges.
- larray
Lengths of the edges
- rarray
Residual forces.
Examples
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