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| /**
It's a code to import mesh with no other utilities. So it can be fast to pre-check if we have set the origin & size & ect correctly. * /
/**
## Code to import mesh */
#include "grid/octree.h"
#include "navier-stokes/centered.h"
#include "utils.h"
#include "distance.h"
#include "fractions.h"
#include "view.h"
#define MIN_LEVEL 5
#define LEVEL 7
#define MAX_LEVEL 9
void fraction_from_stl (scalar f, FILE * fp, int maxlevel)
{
coord * p = input_stl (fp);
coord min, max;
bounding_box (p, &min, &max);
double maxl = -HUGE;
foreach_dimension()
if (max.x - min.x > maxl)
maxl = max.x - min.x;
scalar d[];
distance (d, p);
while (adapt_wavelet ({d}, (double[]){1e-3*L0}, MAX_LEVEL).nf);
vertex scalar phi[];
foreach_vertex()
phi[] = (d[] + d[-1] + d[0,-1] + d[-1,-1] +
d[0,0,-1] + d[-1,0,-1] + d[0,-1,-1] + d[-1,-1,-1])/8.;
fractions (phi, f);
}
scalar f0[];
int main()
{
init_grid (64);
//1 mm = 1
size (10);
origin (-L0/2 ,-5., -L0/2);
//chaneg filename
FILE * fp = fopen ("FILENAME.stl", "r");
fraction_from_stl (f0, fp, LEVEL);
f0.refine = f0.prolongation = fraction_refine;
fclose (fp);
clear();
draw_vof ("f0", edges = true, lw = 0.5);
save ("vof.png");
dump (file = "dump_init");
}
/**
## calculate equivelent radius*/
//calculate volume
double volume = statsf(f0).sum;
fprintf(stderr, "total volume : %g \n", volume);
//calculate equivalent surface
double eq_s =volume /L0 ;
fprintf(stderr, "equivalent surface: %g \n",eq_s);
//calculate equivalent radius
double eq_r = sqrt(eq_s / M_PI) ;
fprintf(stderr, "equivalent radius :%g \n",eq_r);
/**
## view.bv useful commande */
box();
squares("u.x",n={0,1,0},alpha=0.);
draw_vof("f");
|
