NoConvergence#
- exception astropy.wcs.NoConvergence(*args, best_solution=None, accuracy=None, niter=None, divergent=None, slow_conv=None)[source]#
An error class used to report non-convergence and/or divergence of numerical methods. It is used to report errors in the iterative solution used by the
all_world2pix()
.- Attributes:
- best_solution
numpy.ndarray
Best solution achieved by the numerical method.
- accuracy
numpy.ndarray
Accuracy of the
best_solution
.- niter
int
Number of iterations performed by the numerical method to compute
best_solution
.- divergent
None
,numpy.ndarray
Indices of the points in
best_solution
array for which the solution appears to be divergent. If the solution does not diverge,divergent
will be set toNone
.- slow_conv
None
,numpy.ndarray
Indices of the solutions in
best_solution
array for which the solution failed to converge within the specified maximum number of iterations. If there are no non-converging solutions (i.e., if the required accuracy has been achieved for all input data points) thenslow_conv
will be set toNone
.
- best_solution