/* -*- mode: C -*- */ /* IGraph library. Copyright (C) 2006-2012 Gabor Csardi <csardi.gabor@gmail.com> 334 Harvard st, Cambridge MA, 02139 USA This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <igraph.h> #include <igraph_types_internal.h> #include <stdlib.h> #include <time.h> int igraph_i_layout_merge_dla(igraph_i_layout_mergegrid_t *grid, long int actg, igraph_real_t *x, igraph_real_t *y, igraph_real_t r, igraph_real_t cx, igraph_real_t cy, igraph_real_t startr, igraph_real_t killr); int main() { /*******************/ /* Testing the DLA */ /*******************/ long int nodes=10; igraph_i_layout_mergegrid_t grid; igraph_vector_t x, y, r; long int i; igraph_rng_seed(igraph_rng_default(), 42); igraph_vector_init(&x, nodes); igraph_vector_init(&y, nodes); igraph_vector_init(&r, nodes); igraph_i_layout_mergegrid_init(&grid, -5, 5, 100, -5, 5, 100); /* radius */ for (i=0; i<nodes; i++) { VECTOR(r)[i]=rand()/(double)RAND_MAX; } igraph_vector_sort(&r); /* place */ VECTOR(x)[0]=0; VECTOR(y)[0]=0; igraph_i_layout_merge_place_sphere(&grid, 0, 0, VECTOR(r)[nodes-1], 0); for (i=1; i<nodes; i++) { /* fprintf(stderr, "%li ", i); */ igraph_i_layout_merge_dla(&grid, i, igraph_vector_e_ptr(&x, i), igraph_vector_e_ptr(&y, i), VECTOR(r)[nodes-i-1], 0, 0, 4, 7); igraph_i_layout_merge_place_sphere(&grid, VECTOR(x)[i], VECTOR(y)[i], VECTOR(r)[nodes-i-1], i); } /* for (i=0; i<nodes; i++) { */ /* printf("%f %f\n", VECTOR(x)[i], VECTOR(y)[i]); */ /* } */ /* print_grid(&grid, stdout); */ igraph_vector_destroy(&x); igraph_vector_destroy(&y); igraph_vector_destroy(&r); igraph_i_layout_mergegrid_destroy(&grid); return 0; }