/var/www2/hermes2d/hermes2d/src/filter.h File Reference

#include "solution.h"

Go to the source code of this file.

Classes
class	Filter
	Filter is a general postprocessing class, intended for visualization. The output of Filter is an arbitrary combination of up to three input functions, which usually are Solutions to PDEs, but can also be other Filters. More...
class	SimpleFilter
	SimpleFilter is a base class for predefined simple filters (MagFilter, DiffFilter...). The 'simplicity' lies in the fact that only one value per input function can be combined (e.g., not a value and a derivative). If this is not sufficient, a full-fledged filter must be derived from the Filter class (see VonMisesFilter). SimpleFilter is also intended for the user to be able to easily create custom filters only by supplying the combining function. More...
class	DXDYFilter
	DXDYFilter is a more advanced version of SimpleFilter. It allows combining derivatives of the inputs and also, unlike SimpleFilter, it defines derivatives of the filtered result. The user-supplied combining function has a different format: it takes and must return also the DX and DY values. More...
class	MagFilter
	MagFilter takes two functions representing the components of a vector function and calculates the vector magnitude, sqrt(x^2 + y^2). More...
class	DiffFilter
	Calculates the difference of two functions. More...
class	SumFilter
	Calculates the sum of two functions. More...
class	SquareFilter
	Calculates the square of a function. More...
class	RealFilter
	Removes the imaginary part from a function. More...
class	ImagFilter
	ImagFilter puts the imaginary part of the input function to the real part of the output, allowing it to be visualized. More...
class	AbsFilter
	Computes the absolute value of a complex solution. More...
class	AngleFilter
	Computes the angle of a complex solution. More...
class	VonMisesFilter
	VonMisesFilter is a postprocessing filter for visualizing elastic stresses in a body. It calculates the stress tensor and applies the Von Mises equivalent stress formula to obtain the resulting stress measure. More...
class	LinearFilter
	Linearization filter for use in nonlinear problems. From one or two previous solution values it extrapolates an estimate of the new one. With adaptive time step: tau_frac = tau_new / tau_old. More...