s3dut_cuboid.c (2622B)
1 /* Copyright (C) 2016, 2017, 2020, 2021, 2023 |Méso|Star> (contact@meso-star.com) 2 * 3 * This program is free software: you can redistribute it and/or modify 4 * it under the terms of the GNU General Public License as published by 5 * the Free Software Foundation, either version 3 of the License, or 6 * (at your option) any later version. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program. If not, see <http://www.gnu.org/licenses/>. */ 15 16 #include "s3dut.h" 17 #include "s3dut_mesh.h" 18 19 /******************************************************************************* 20 * Exported functions 21 ******************************************************************************/ 22 res_T 23 s3dut_create_cuboid 24 (struct mem_allocator* allocator, 25 const double width, 26 const double height, 27 const double depth, 28 struct s3dut_mesh** mesh) 29 { 30 struct s3dut_mesh* cuboid = NULL; 31 double x, y, z; 32 double* coords; 33 size_t* ids; 34 size_t i; 35 res_T res = RES_OK; 36 37 if(width <= 0 || height <= 0 || depth <= 0 || !mesh) { 38 res = RES_BAD_ARG; 39 goto error; 40 } 41 42 res = mesh_create(allocator, S3DUT_MESH_CUBOID, 8, 12, &cuboid); 43 if(res != RES_OK) goto error; 44 45 coords = darray_double_data_get(&cuboid->coords); 46 ids = darray_size_t_data_get(&cuboid->ids); 47 x = width * 0.5; 48 y = height * 0.5; 49 z = depth * 0.5; 50 51 i = 0; 52 coords[i++]=-x; coords[i++]=-y; coords[i++]=-z; 53 coords[i++]= x; coords[i++]=-y; coords[i++]=-z; 54 coords[i++]= x; coords[i++]= y; coords[i++]=-z; 55 coords[i++]=-x; coords[i++]= y; coords[i++]=-z; 56 coords[i++]=-x; coords[i++]=-y; coords[i++]= z; 57 coords[i++]= x; coords[i++]=-y; coords[i++]= z; 58 coords[i++]= x; coords[i++]= y; coords[i++]= z; 59 coords[i++]=-x; coords[i++]= y; coords[i++]= z; 60 61 i = 0; 62 ids[i++]=0; ids[i++]=2; ids[i++]=3; 63 ids[i++]=0; ids[i++]=1; ids[i++]=2; 64 ids[i++]=0; ids[i++]=3; ids[i++]=7; 65 ids[i++]=0; ids[i++]=7; ids[i++]=4; 66 ids[i++]=0; ids[i++]=4; ids[i++]=1; 67 ids[i++]=4; ids[i++]=5; ids[i++]=1; 68 ids[i++]=5; ids[i++]=6; ids[i++]=1; 69 ids[i++]=1; ids[i++]=6; ids[i++]=2; 70 ids[i++]=2; ids[i++]=6; ids[i++]=7; 71 ids[i++]=2; ids[i++]=7; ids[i++]=3; 72 ids[i++]=7; ids[i++]=6; ids[i++]=4; 73 ids[i++]=6; ids[i++]=5; ids[i++]=4; 74 75 exit: 76 if(mesh) *mesh = cuboid; 77 return res; 78 error: 79 if(cuboid) { 80 S3DUT(mesh_ref_put(cuboid)); 81 cuboid = NULL; 82 } 83 goto exit; 84 } 85