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author | dan miller | 2007-10-19 05:20:07 +0000 |
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committer | dan miller | 2007-10-19 05:20:07 +0000 |
commit | fca74b0bf0a0833f5701e9c0de7b3bc15b2233dd (patch) | |
tree | 51bcae7a1b8381a6bf6fd8025a7de1e30fe0045d /libraries/ode-0.9/ode/demo/demo_cyl.cpp | |
parent | resubmitting ode (diff) | |
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Diffstat (limited to 'libraries/ode-0.9/ode/demo/demo_cyl.cpp')
-rw-r--r-- | libraries/ode-0.9/ode/demo/demo_cyl.cpp | 318 |
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diff --git a/libraries/ode-0.9/ode/demo/demo_cyl.cpp b/libraries/ode-0.9/ode/demo/demo_cyl.cpp deleted file mode 100644 index 3692234..0000000 --- a/libraries/ode-0.9/ode/demo/demo_cyl.cpp +++ /dev/null | |||
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1 | /************************************************************************* | ||
2 | * * | ||
3 | * Open Dynamics Engine, Copyright (C) 2001,2002 Russell L. Smith. * | ||
4 | * All rights reserved. Email: russ@q12.org Web: www.q12.org * | ||
5 | * * | ||
6 | * This library is free software; you can redistribute it and/or * | ||
7 | * modify it under the terms of EITHER: * | ||
8 | * (1) The GNU Lesser General Public License as published by the Free * | ||
9 | * Software Foundation; either version 2.1 of the License, or (at * | ||
10 | * your option) any later version. The text of the GNU Lesser * | ||
11 | * General Public License is included with this library in the * | ||
12 | * file LICENSE.TXT. * | ||
13 | * (2) The BSD-style license that is included with this library in * | ||
14 | * the file LICENSE-BSD.TXT. * | ||
15 | * * | ||
16 | * This library is distributed in the hope that it will be useful, * | ||
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * | ||
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files * | ||
19 | * LICENSE.TXT and LICENSE-BSD.TXT for more details. * | ||
20 | * * | ||
21 | *************************************************************************/ | ||
22 | |||
23 | // Test for non-capped cylinder, by Bram Stolk | ||
24 | #include <ode/config.h> | ||
25 | #include <assert.h> | ||
26 | #ifdef HAVE_UNISTD_H | ||
27 | #include <unistd.h> | ||
28 | #endif | ||
29 | #include <ode/ode.h> | ||
30 | #include <drawstuff/drawstuff.h> | ||
31 | |||
32 | #include "world_geom3.h" // this is our world mesh | ||
33 | |||
34 | #ifdef _MSC_VER | ||
35 | #pragma warning(disable:4244 4305) // for VC++, no precision loss complaints | ||
36 | #endif | ||
37 | |||
38 | #define BOX | ||
39 | #define CYL | ||
40 | |||
41 | // some constants | ||
42 | |||
43 | #define RADIUS 0.22 // wheel radius | ||
44 | #define WMASS 0.2 // wheel mass | ||
45 | #define WHEELW 0.2 // wheel width | ||
46 | #define BOXSZ 0.4 // box size | ||
47 | //#define CYL_GEOM_OFFSET // rotate cylinder using geom offset | ||
48 | |||
49 | // dynamics and collision objects (chassis, 3 wheels, environment) | ||
50 | |||
51 | static dWorldID world; | ||
52 | static dSpaceID space; | ||
53 | #ifdef BOX | ||
54 | static dBodyID boxbody; | ||
55 | static dGeomID boxgeom; | ||
56 | #endif | ||
57 | #ifdef CYL | ||
58 | static dBodyID cylbody; | ||
59 | static dGeomID cylgeom; | ||
60 | #endif | ||
61 | static dJointGroupID contactgroup; | ||
62 | static dGeomID world_mesh; | ||
63 | |||
64 | |||
65 | // this is called by dSpaceCollide when two objects in space are | ||
66 | // potentially colliding. | ||
67 | |||
68 | static void nearCallback (void *data, dGeomID o1, dGeomID o2) | ||
69 | { | ||
70 | assert(o1); | ||
71 | assert(o2); | ||
72 | |||
73 | if (dGeomIsSpace(o1) || dGeomIsSpace(o2)) | ||
74 | { | ||
75 | fprintf(stderr,"testing space %p %p\n", o1,o2); | ||
76 | // colliding a space with something | ||
77 | dSpaceCollide2(o1,o2,data,&nearCallback); | ||
78 | // Note we do not want to test intersections within a space, | ||
79 | // only between spaces. | ||
80 | return; | ||
81 | } | ||
82 | |||
83 | // fprintf(stderr,"testing geoms %p %p\n", o1, o2); | ||
84 | |||
85 | const int N = 32; | ||
86 | dContact contact[N]; | ||
87 | int n = dCollide (o1,o2,N,&(contact[0].geom),sizeof(dContact)); | ||
88 | if (n > 0) | ||
89 | { | ||
90 | for (int i=0; i<n; i++) | ||
91 | { | ||
92 | contact[i].surface.slip1 = 0.7; | ||
93 | contact[i].surface.slip2 = 0.7; | ||
94 | contact[i].surface.mode = dContactSoftERP | dContactSoftCFM | dContactApprox1 | dContactSlip1 | dContactSlip2; | ||
95 | contact[i].surface.mu = 50.0; // was: dInfinity | ||
96 | contact[i].surface.soft_erp = 0.96; | ||
97 | contact[i].surface.soft_cfm = 0.04; | ||
98 | dJointID c = dJointCreateContact (world,contactgroup,&contact[i]); | ||
99 | dJointAttach (c, | ||
100 | dGeomGetBody(contact[i].geom.g1), | ||
101 | dGeomGetBody(contact[i].geom.g2)); | ||
102 | } | ||
103 | } | ||
104 | } | ||
105 | |||
106 | |||
107 | // start simulation - set viewpoint | ||
108 | |||
109 | static void start() | ||
110 | { | ||
111 | static float xyz[3] = {-8,-9,3}; | ||
112 | static float hpr[3] = {45.0000f,-27.5000f,0.0000f}; | ||
113 | dsSetViewpoint (xyz,hpr); | ||
114 | } | ||
115 | |||
116 | |||
117 | |||
118 | static void reset_state(void) | ||
119 | { | ||
120 | float sx=-4, sy=-4, sz=2; | ||
121 | dQuaternion q; | ||
122 | dQFromAxisAndAngle (q,1,0,0,M_PI*0.5); | ||
123 | #ifdef BOX | ||
124 | dBodySetPosition (boxbody, sx, sy+1, sz); | ||
125 | dBodySetLinearVel (boxbody, 0,0,0); | ||
126 | dBodySetAngularVel (boxbody, 0,0,0); | ||
127 | dBodySetQuaternion (boxbody, q); | ||
128 | #endif | ||
129 | #ifdef CYL | ||
130 | dBodySetPosition (cylbody, sx, sy, sz); | ||
131 | dBodySetLinearVel (cylbody, 0,0,0); | ||
132 | dBodySetAngularVel (cylbody, 0,0,0); | ||
133 | dBodySetQuaternion (cylbody, q); | ||
134 | #endif | ||
135 | } | ||
136 | |||
137 | |||
138 | // called when a key pressed | ||
139 | |||
140 | static void command (int cmd) | ||
141 | { | ||
142 | switch (cmd) | ||
143 | { | ||
144 | case ' ': | ||
145 | reset_state(); | ||
146 | break; | ||
147 | } | ||
148 | } | ||
149 | |||
150 | |||
151 | |||
152 | // simulation loop | ||
153 | |||
154 | static void simLoop (int pause) | ||
155 | { | ||
156 | double simstep = 0.005; // 5ms simulation steps | ||
157 | double dt = dsElapsedTime(); | ||
158 | int nrofsteps = (int) ceilf(dt/simstep); | ||
159 | for (int i=0; i<nrofsteps && !pause; i++) | ||
160 | { | ||
161 | dSpaceCollide (space,0,&nearCallback); | ||
162 | dWorldQuickStep (world, simstep); | ||
163 | dJointGroupEmpty (contactgroup); | ||
164 | } | ||
165 | |||
166 | dsSetColor (1,1,1); | ||
167 | #ifdef BOX | ||
168 | const dReal *BPos = dBodyGetPosition(boxbody); | ||
169 | const dReal *BRot = dBodyGetRotation(boxbody); | ||
170 | float bpos[3] = {BPos[0], BPos[1], BPos[2]}; | ||
171 | float brot[12] = { BRot[0], BRot[1], BRot[2], BRot[3], BRot[4], BRot[5], BRot[6], BRot[7], BRot[8], BRot[9], BRot[10], BRot[11] }; | ||
172 | float sides[3] = {BOXSZ, BOXSZ, BOXSZ}; | ||
173 | dsDrawBox | ||
174 | ( | ||
175 | bpos, | ||
176 | brot, | ||
177 | sides | ||
178 | ); // single precision | ||
179 | #endif | ||
180 | #ifdef CYL | ||
181 | const dReal *CPos = dGeomGetPosition(cylgeom); | ||
182 | const dReal *CRot = dGeomGetRotation(cylgeom); | ||
183 | float cpos[3] = {CPos[0], CPos[1], CPos[2]}; | ||
184 | float crot[12] = { CRot[0], CRot[1], CRot[2], CRot[3], CRot[4], CRot[5], CRot[6], CRot[7], CRot[8], CRot[9], CRot[10], CRot[11] }; | ||
185 | dsDrawCylinder | ||
186 | ( | ||
187 | // dBodyGetPosition(cylbody), | ||
188 | // dBodyGetRotation(cylbody), | ||
189 | cpos, | ||
190 | crot, | ||
191 | WHEELW, | ||
192 | RADIUS | ||
193 | ); // single precision | ||
194 | #endif | ||
195 | |||
196 | // draw world trimesh | ||
197 | dsSetColor(0.7,0.7,0.4); | ||
198 | dsSetTexture (DS_NONE); | ||
199 | |||
200 | const dReal* Pos = dGeomGetPosition(world_mesh); | ||
201 | float pos[3] = { Pos[0], Pos[1], Pos[2] }; | ||
202 | |||
203 | const dReal* Rot = dGeomGetRotation(world_mesh); | ||
204 | float rot[12] = { Rot[0], Rot[1], Rot[2], Rot[3], Rot[4], Rot[5], Rot[6], Rot[7], Rot[8], Rot[9], Rot[10], Rot[11] }; | ||
205 | |||
206 | int numi = sizeof(world_indices) / sizeof(int); | ||
207 | |||
208 | for (int i=0; i<numi/3; i++) | ||
209 | { | ||
210 | int i0 = world_indices[i*3+0]; | ||
211 | int i1 = world_indices[i*3+1]; | ||
212 | int i2 = world_indices[i*3+2]; | ||
213 | float *v0 = world_vertices+i0*3; | ||
214 | float *v1 = world_vertices+i1*3; | ||
215 | float *v2 = world_vertices+i2*3; | ||
216 | dsDrawTriangle(pos, rot, v0,v1,v2, true); // single precision draw | ||
217 | } | ||
218 | } | ||
219 | |||
220 | |||
221 | int main (int argc, char **argv) | ||
222 | { | ||
223 | dMass m; | ||
224 | dMatrix3 R; | ||
225 | |||
226 | // setup pointers to drawstuff callback functions | ||
227 | dsFunctions fn; | ||
228 | fn.version = DS_VERSION; | ||
229 | fn.start = &start; | ||
230 | fn.step = &simLoop; | ||
231 | fn.command = &command; | ||
232 | fn.stop = 0; | ||
233 | fn.path_to_textures = "../../drawstuff/textures"; | ||
234 | if(argc==2) | ||
235 | { | ||
236 | fn.path_to_textures = argv[1]; | ||
237 | } | ||
238 | |||
239 | // create world | ||
240 | dInitODE(); | ||
241 | world = dWorldCreate(); | ||
242 | space = dHashSpaceCreate (0); | ||
243 | contactgroup = dJointGroupCreate (0); | ||
244 | dWorldSetGravity (world,0,0,-9.8); | ||
245 | dWorldSetQuickStepNumIterations (world, 12); | ||
246 | |||
247 | |||
248 | // Create a static world using a triangle mesh that we can collide with. | ||
249 | int numv = sizeof(world_vertices)/(3*sizeof(float)); | ||
250 | int numi = sizeof(world_indices)/ sizeof(int); | ||
251 | printf("numv=%d, numi=%d\n", numv, numi); | ||
252 | dTriMeshDataID Data = dGeomTriMeshDataCreate(); | ||
253 | |||
254 | dGeomTriMeshDataBuildSingle | ||
255 | ( | ||
256 | Data, | ||
257 | world_vertices, | ||
258 | 3 * sizeof(float), | ||
259 | numv, | ||
260 | world_indices, | ||
261 | numi, | ||
262 | 3 * sizeof(int) | ||
263 | ); | ||
264 | |||
265 | world_mesh = dCreateTriMesh(space, Data, 0, 0, 0); | ||
266 | dGeomSetPosition(world_mesh, 0, 0, 0.5); | ||
267 | dRFromAxisAndAngle (R, 0,1,0, 0.0); | ||
268 | dGeomSetRotation (world_mesh, R); | ||
269 | |||
270 | |||
271 | #ifdef BOX | ||
272 | boxbody = dBodyCreate (world); | ||
273 | dMassSetBox (&m,1, BOXSZ, BOXSZ, BOXSZ); | ||
274 | dMassAdjust (&m, 1); | ||
275 | dBodySetMass (boxbody,&m); | ||
276 | boxgeom = dCreateBox (0, BOXSZ, BOXSZ, BOXSZ); | ||
277 | dGeomSetBody (boxgeom,boxbody); | ||
278 | dSpaceAdd (space, boxgeom); | ||
279 | #endif | ||
280 | #ifdef CYL | ||
281 | cylbody = dBodyCreate (world); | ||
282 | dMassSetSphere (&m,1,RADIUS); | ||
283 | dMassAdjust (&m,WMASS); | ||
284 | dBodySetMass (cylbody,&m); | ||
285 | cylgeom = dCreateCylinder(0, RADIUS, WHEELW); | ||
286 | dGeomSetBody (cylgeom,cylbody); | ||
287 | |||
288 | #if defined(CYL_GEOM_OFFSET) | ||
289 | dMatrix3 mat; | ||
290 | dRFromAxisAndAngle(mat,1.0f,0.0f,0.0f,M_PI/2.0); | ||
291 | dGeomSetOffsetRotation(cylgeom,mat); | ||
292 | #endif | ||
293 | |||
294 | dSpaceAdd (space, cylgeom); | ||
295 | #endif | ||
296 | reset_state(); | ||
297 | |||
298 | // run simulation | ||
299 | dsSimulationLoop (argc,argv,352,288,&fn); | ||
300 | |||
301 | dJointGroupEmpty (contactgroup); | ||
302 | dJointGroupDestroy (contactgroup); | ||
303 | |||
304 | // First destroy geoms, then space, then the world. | ||
305 | #ifdef CYL | ||
306 | dGeomDestroy (cylgeom); | ||
307 | #endif | ||
308 | #ifdef BOX | ||
309 | dGeomDestroy (boxgeom); | ||
310 | #endif | ||
311 | dGeomDestroy (world_mesh); | ||
312 | |||
313 | dSpaceDestroy (space); | ||
314 | dWorldDestroy (world); | ||
315 | dCloseODE(); | ||
316 | return 0; | ||
317 | } | ||
318 | |||