cuikrrtstar.c

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#include "world.h"
#include "parameters.h"

#include "defines.h"
#include "error.h"
#include "filename.h"
#include "rrt.h"
#include "random.h"
#include "geom.h"
#include "samples.h"
#include "averages.h"

#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <math.h>

int main(int argc, char **arg)
{
  TAtlasBase world;        /* The set of mechanism and obstacles.  */
  Tparameters parameters;  /* Parameters used in the Cuik process. */

  Tfilename fparam;
  
  double *s1,*s2;         /* Origin/goal of the RRT. */
  
  unsigned int nvs;

  Trrt rrt;

  boolean connected;
  double planningTime;
  double pl;
  unsigned int ns;
  double **path;
  boolean birrt;
  boolean rrtgraph;

  unsigned int it,nRepetitions;
  Taverages averages;

  unsigned int ri;
  time_t t;

  /* Statistics about the time take up to each iteration and
     the path lengh at that point */
  unsigned int maxIt,execIt;
  double *times,*costs;

  TRRTStatistics *rst;

  if (argc>1)
    {
      if (argc>2)
        {
          nRepetitions=atoi(arg[2]);
          if (nRepetitions==0)
            Error("Second parameter for cuikrrtstar is wrong");
        }
      else
        nRepetitions=1;
      
      if ((nRepetitions>1)&&((RRT_VERBOSE)||(GET_RRT_STATISTICS)))
        Warning("To get accurate execution time statistics, set RRT_VERBOSE and GET_RRT_STATISTICS to 0");

      if ((GET_RRT_STATISTICS)&&(nRepetitions>1))
        {
          NEW(rst,1,TRRTStatistics);
          InitRRTStatistics(rst);
        }
      else
        rst=NULL;

      /*Init parameters*/
      CreateFileName(NULL,arg[1],NULL,PARAM_EXT,&fparam);
      fprintf(stderr,"Reading parameters from           : %s\n",GetFileFullName(&fparam));
      InitParametersFromFile(GetFileFullName(&fparam),&parameters);

      birrt=(GetParameter(CT_BI_RRT,&parameters)>0.5);
      rrtgraph=(GetParameter(CT_RRT_GRAPH,&parameters)>0.5);

      /*Read the world from file*/
      CS_WD_INIT(&parameters,arg[1],&world);

      /* Read samples */
      nvs=ReadTwoSamples(&parameters,arg[1],CS_WD_GET_NUM_SYSTEM_VARS(&world),&s1,&s2);

      /* Random seed initialization */
      t=time(NULL);  /* Get the time at which input files have been read */
      ri=(unsigned int)t;
      //ri=1406813613;
      randomSet(ri);
      fprintf(stderr,"Random seed                       : %u\n",ri);

      /* Maximum number of iterations (set to NO_UINT to limit execution only in time)  */
      maxIt=(unsigned int)GetParameter(CT_MAX_PLANNING_ITERATIONS,&parameters);

      /* Start the process to connect the two samples */
      InitAverages(nRepetitions,FALSE,TRUE,maxIt,&averages);

      /* Buffer to store statistics about the path length */
      if (maxIt!=NO_UINT)
        {
          NEW(times,maxIt,double);
          NEW(costs,maxIt,double);
        }

      for(it=0;it<nRepetitions;it++)
        {
          /* Init a RRT (bi-directional and with graph structure depending on parameters) */
          InitRRT(&parameters,TRUE,FALSE,s1,(birrt?TWO_TREES_WITH_SWAP:ONE_TREE),rrtgraph,s2,nvs,&world,&rrt);
          fprintf(stderr,"************************************************\n");   

          /* Try to connect the goal with a tree from the start with
             an optimal path */
          connected=RRTstar(&parameters,s2,
                            &execIt,times,costs,
                            &planningTime,&pl,&ns,&path,
                            rst,&rrt);

          /* Save the results (only if one shot execution) */
          if (nRepetitions==1)
            {
              Tfilename frrt;

              if (connected)
                SaveSamples(arg[1],FALSE,nvs,ns,path);

              CreateFileName(NULL,arg[1],NULL,RRT_EXT,&frrt);      
              fprintf(stderr,"Writing RRT to                    : %s\n",GetFileFullName(&frrt));
              SaveRRT(&frrt,&rrt);
              DeleteFileName(&frrt);
            }

          /* Summarize and release allocated objects for this repetition*/
          if (connected)
            {
              NewSuccesfulExperiment(planningTime,RRTMemSize(&rrt),pl,0,
                                     NO_UINT,
                                     (double)GetRRTNumNodes(&rrt),
                                     (execIt==maxIt?times:NULL),
                                     (execIt==maxIt?costs:NULL),
                                     &averages);
              DeleteSamples(ns,path);
            }
          else
            fprintf(stderr,"  Execution failed\n");
            
          DeleteRRT(&rrt);

          fprintf(stderr,"Execution compleated %u/%u\n",it+1,nRepetitions);
        }

      /* Print statistics about the execution (only if many iterations) */
      if (nRepetitions>1)
        {         
          PrintAveragesHeader(stderr,argc,arg,&averages);

          fprintf(stderr,"%% **************************************************\n");
          fprintf(stderr,"Random seed : %u\n",ri);
          fprintf(stderr,"Update_Costs: %u  Symmetric_Cost: %u  Heuristic: %u \n",
                  RRTSTAR_UPDATE_COSTS,RRTSTAR_SYMMETRIC_COST,HEURISTIC_RRT_STAR);
          PrintParameters(stderr,&parameters);

          #if (GET_ATLASRRT_STATISTICS)
            PrintAtlasRRTStatistics(NULL,arst);
            DeleteAtlasRRTStatistics(arst);
            free(arst);
          #endif

          PrintAverages(stderr,&averages);

          fprintf(stderr,"%% **************************************************\n");
        }

      /* Release memory */
      if (maxIt!=NO_UINT)
        {
          free(times);
          free(costs);
        }

      DeleteAverages(&averages);

      free(s1);
      free(s2);

      DeleteParameters(&parameters);
            
      CS_WD_DELETE(&world);

      DeleteFileName(&fparam);
    }
 else
   {
     fprintf(stderr,"  Wrong number of parameters.\n");
     fprintf(stderr,"  Use:\n");   
     fprintf(stderr,"      cuikrrtstar <problem filename>.%s [num Repetitions]\n",CS_WD_EXT);
     fprintf(stderr,"  where <problem filename> the equations/world description\n");
     fprintf(stderr,"        <num Repetitions> experiment repetitions to gather statistics\n");
     fprintf(stderr,"                          This is optional.\n");
     fprintf(stderr,"    (the '.%s' extension is not required)\n",CS_WD_EXT);
   }
  return(EXIT_SUCCESS);
}