source: issm/trunk/src/c/classes/Cfdragcoeffabsgrad.cpp@ 27035

/*!\file Cfdragcoeffabsgrad.cpp
 * \brief: Cfdragcoeffabsgrad Object
 */

/*Headers:*/
/*{{{*/
#ifdef HAVE_CONFIG_H
   #include <config.h>
#else
#error "Cannot compile with HAVE_CONFIG_H symbol! run configure first!"
#endif

#include "./classes.h"
#include "./ExternalResults/ExternalResult.h"
#include "./ExternalResults/Results.h"
#include "../datastructures/datastructures.h"
#include "./Elements/Element.h"
#include "./Elements/Elements.h"
#include "./FemModel.h"
#include "../modules/SurfaceAreax/SurfaceAreax.h"
#include "../classes/Params/Parameters.h"
#include "../classes/gauss/Gauss.h"
#include "./Inputs/DatasetInput.h"
/*}}}*/

/*Cfdragcoeffabsgrad constructors, destructors :*/
Cfdragcoeffabsgrad::Cfdragcoeffabsgrad(){/*{{{*/

        this->definitionenum = -1;
        this->name = NULL;
        this->weights_enum = UNDEF;
        this->timepassedflag = false;
}
/*}}}*/
Cfdragcoeffabsgrad::Cfdragcoeffabsgrad(char* in_name, int in_definitionenum, int in_weights_enum, bool in_timepassedflag){/*{{{*/

        this->definitionenum=in_definitionenum;

        this->name              = xNew<char>(strlen(in_name)+1);
        xMemCpy<char>(this->name,in_name,strlen(in_name)+1);

        this->weights_enum=in_weights_enum;
        this->timepassedflag=in_timepassedflag;
}
/*}}}*/
Cfdragcoeffabsgrad::~Cfdragcoeffabsgrad(){/*{{{*/
        if(this->name)xDelete(this->name);
}
/*}}}*/
/*Object virtual function resolutoin: */
Object* Cfdragcoeffabsgrad::copy() {/*{{{*/
        Cfdragcoeffabsgrad* mf = new Cfdragcoeffabsgrad(this->name,this->definitionenum, this->weights_enum,this->timepassedflag);
        return (Object*) mf;
}
/*}}}*/
void Cfdragcoeffabsgrad::DeepEcho(void){/*{{{*/
        this->Echo();
}
/*}}}*/
void Cfdragcoeffabsgrad::Echo(void){/*{{{*/
        _printf_(" Cfdragcoeffabsgrad: " << name << " " << this->definitionenum << "\n");
        _printf_("    weights_enum: " << weights_enum << " " << EnumToStringx(weights_enum) << "\n");
        _printf_("        timepassedflag: "<<timepassedflag<<"\n");
}
/*}}}*/
int Cfdragcoeffabsgrad::Id(void){/*{{{*/
        return -1;
}
/*}}}*/
void Cfdragcoeffabsgrad::Marshall(MarshallHandle* marshallhandle){/*{{{*/
        _error_("not implemented yet!"); 
} 
/*}}}*/
int Cfdragcoeffabsgrad::ObjectEnum(void){/*{{{*/
        return CfdragcoeffabsgradEnum;
}
/*}}}*/
/*Definition virtual function resolutoin: */
int Cfdragcoeffabsgrad::DefinitionEnum(){/*{{{*/
        return this->definitionenum;
}
/*}}}*/
char* Cfdragcoeffabsgrad::Name(){/*{{{*/
        char* name2=xNew<char>(strlen(this->name)+1);
        xMemCpy(name2,this->name,strlen(this->name)+1);

        return name2;
}
/*}}}*/
IssmDouble Cfdragcoeffabsgrad::Response(FemModel* femmodel){/*{{{*/

        /*recover parameters: */
        IssmDouble J=0.;
        IssmDouble J_sum=0.;

        for(Object* & object : femmodel->elements->objects){
                Element* element=xDynamicCast<Element*>(object);
                J+=this->Cfdragcoeffabsgrad_Calculation(element,weights_enum);
        }

        ISSM_MPI_Allreduce ( (void*)&J,(void*)&J_sum,1,ISSM_MPI_DOUBLE,ISSM_MPI_SUM,IssmComm::GetComm());
        ISSM_MPI_Bcast(&J_sum,1,ISSM_MPI_DOUBLE,0,IssmComm::GetComm());
        J=J_sum;

        timepassedflag = true;
        return J;
}/*}}}*/
IssmDouble Cfdragcoeffabsgrad::Cfdragcoeffabsgrad_Calculation(Element* element, int weights_enum){/*{{{*/

        int        domaintype,numcomponents;
        IssmDouble Jelem=0.;
        IssmDouble Jdet;
        IssmDouble dp[2],weight;
        IssmDouble* xyz_list = NULL;

        /*Get basal element*/
        if(!element->IsOnBase()) return 0.;

        /*If on water, return 0: */
        if(!element->IsIceInElement()) return 0.;

        /*Get problem dimension*/
        element->FindParam(&domaintype,DomainTypeEnum);
        switch(domaintype){
                case Domain2DverticalEnum:   numcomponents   = 1; break;
                case Domain3DEnum:           numcomponents   = 2; break;
                case Domain2DhorizontalEnum: numcomponents   = 2; break;
                default: _error_("not supported yet");
        }

        /*Spawn surface element*/
        Element* basalelement = element->SpawnBasalElement();

        /* Get node coordinates*/
        basalelement->GetVerticesCoordinates(&xyz_list);

        /*Get input if it already exists*/
        DatasetInput *datasetinput = basalelement->GetDatasetInput(definitionenum);  _assert_(datasetinput);
        Input        *drag_input   = basalelement->GetInput(FrictionCoefficientEnum); _assert_(drag_input);

        /* Start  looping on the number of gaussian points: */
        Gauss* gauss=basalelement->NewGauss(2);
        while(gauss->next()){

                /* Get Jacobian determinant: */
                basalelement->JacobianDeterminant(&Jdet,xyz_list,gauss);

                /*Get all parameters at gaussian point*/
                datasetinput->GetInputValue(&weight,gauss,WeightsSurfaceObservationEnum);
                drag_input->GetInputDerivativeValue(&dp[0],xyz_list,gauss);

                /*Add to cost function*/
                Jelem+=weight*.5*dp[0]*dp[0]*Jdet*gauss->weight;
                if(numcomponents==2) Jelem+=weight*.5*dp[1]*dp[1]*Jdet*gauss->weight;
        }

        /*clean up and Return: */
        if(basalelement->IsSpawnedElement()){basalelement->DeleteMaterials(); delete basalelement;};
        xDelete<IssmDouble>(xyz_list);
        delete gauss;
        return Jelem;
}/*}}}*/