source: issm/branches/trunk-jpl-damage/src/mex/TriaSearch/TriaSearch.cpp@ 11427

/*\file TriaSearch.c
 *\brief: TriaSearch module. See TriaSearchx for more details.
 */
#include "./TriaSearch.h"

void mexFunction( int nlhs, mxArray* plhs[], int nrhs, const mxArray* prhs[]){

        int i;

        /*input: */
        double* index=NULL;
        int     nel;
        int     dummy;

        double* x=NULL;
        double* y=NULL;
        int     nods;

        double* x0=NULL;
        double* y0=NULL;
        int     numberofnodes;

        /* output: */
        double*  tria=NULL;

        /*Boot module: */
        MODULEBOOT();

        /*checks on arguments on the matlab side: */
        CheckNumMatlabArguments(nlhs,NLHS,nrhs,NRHS,__FUNCT__,&TriaSearchUsage);

        /*Input datasets: */
        FetchMatlabData(&index,&nel,&dummy,INDEXHANDLE);
        FetchMatlabData(&x,&nods,XHANDLE);
        FetchMatlabData(&y,&nods,YHANDLE);
        FetchMatlabData(&x0,&numberofnodes,X0HANDLE);
        FetchMatlabData(&y0,&numberofnodes,Y0HANDLE);

        /* Echo: {{{1*/
        //printf("(x0,y0)=(%g,%g)\n",x0,y0);
        /*}}}*/

        /* Run core computations: */
        TriaSearchx(&tria,index,nel,x,y,nods,x0,y0,numberofnodes);

        /* c to matlab: */
        for(i=0;i<numberofnodes;i++)tria[i]++;

        /*Write data: */
        WriteMatlabData(TRIA,tria,numberofnodes);

        /*end module: */
        MODULEEND();
}

void TriaSearchUsage(void)
{
        _printf_(true,"TriaSearch- find triangle holding a point (x0,y0) in a mesh\n");
        _printf_(true,"\n");
        _printf_(true,"   Usage:\n");
        _printf_(true,"         tria=TriaSearch(index,x,y,x0,y0);\n");
        _printf_(true,"      index,x,y: mesh triangulatrion\n");
        _printf_(true,"      x0,y0: coordinates of the point for which we are trying to find a triangle\n");
        _printf_(true,"      x0,y0 can be an array of points\n");
        _printf_(true,"\n");
}