texample.c - slidergrid - grid of elastic sliders on a frictional surface
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       ---
       texample.c (1151B)
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            1 #include "slidergrid/simulation.h"
            2 #include "slidergrid/grid.h"
            3 #include "slidergrid/slider.h"
            4 
            5 #include <stdio.h>
            6 
            7 // test a regular, 2d, orthogonal grid of sliders
            8 simulation setup_simulation()
            9 {
           10     // create empty simulation structure with default values
           11     simulation sim = create_simulation();
           12     sim.id = "example";
           13 
           14     // initialize grid of sliders
           15     //int nx = 10;
           16     int nx = 2;
           17     int ny = 1;
           18     int nz = 1;
           19     sim.N = nx*ny*nz;
           20     sim.sliders = create_regular_slider_grid(nx, ny, nz, 1.0, 1.0, 1.0);
           21 
           22     sim.bond_length_limit = 1.5;
           23 
           24     // set slider masses and moments of inertia
           25     int i;
           26     for (i=0; i<sim.N; i++) {
           27 
           28         // set default values
           29         initialize_slider_values(&sim.sliders[i]);
           30 
           31         // set custom values for certain parameters
           32         sim.sliders[i].mass = 1.0;
           33         sim.sliders[i].moment_of_inertia = 1.0e3;
           34         sim.sliders[i].bond_parallel_kv_stiffness = 1.0e5;
           35         //sim.sliders[i].bond_parallel_kv_viscosity = 1.0e2;
           36     }
           37 
           38     sim.sliders[0].vel.x = 0.01;
           39 
           40     // set temporal parameters
           41     sim.time = 0.0;
           42     sim.time_end = 10.0;
           43     sim.file_interval = 0.1;
           44 
           45     return sim;
           46 }