spr Namespace Reference

All SPR error estimator functions. More...

Functions
apf::Field *	getGradIPField (apf::Field *f, const char *name, int order)
	compute the gradient of a vector or scalar field at integration points
apf::Field *	recoverField (apf::Field *ip_field)
	recover a nodal field using patch recovery
apf::Field *	getSPRSizeField (apf::Field *f, double adapt_ratio)
	run the SPR ZZ error estimator
apf::Field *	getTargetSPRSizeField (apf::Field *f, size_t t, double alpha=0.25, double beta=2.0)
	run the SPR ZZ error estimator with a target # of output elems

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Detailed Description

All SPR error estimator functions.

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Function Documentation

apf::Field* spr::getGradIPField	(	apf::Field *	f,
		const char *	name,
		int	order
	)

compute the gradient of a vector or scalar field at integration points

Parameters:

	f	(In) scalar or vector nodal field
	name	(In) name of integration point field
	order	(In) integration order of accuracy

apf::Field* spr::getSPRSizeField	(	apf::Field *	f,
		double	adapt_ratio
	)

run the SPR ZZ error estimator

Parameters:

	f	the integration-point input field
	adapt_ratio	the fraction of allowable error, scales the output size field.

Returns:

a scalar mesh size field defined at vertices

apf::Field* spr::getTargetSPRSizeField	(	apf::Field *	f,
		size_t	t,
		double	alpha = 0.25,
		double	beta = 2.0
	)

run the SPR ZZ error estimator with a target # of output elems

Parameters:

	f	the integration-point input field
	t	the target number of output elements after adaptation
	alpha	floor on the size field; alpha < h_new/h_old < beta
	beta	ceiling on the size field; alpha < h_new/h_old < beta

Returns:

a scalar mesh size field at mesh vertices

apf::Field* spr::recoverField

(

apf::Field *

ip_field

)

recover a nodal field using patch recovery

Parameters:

ip_field

(In) integration point field