testSmooth2.cc 57.1 KB
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/**
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 */
/**
 * \file testgeom.cc
 *
 * \brief testgeom, a unit test for the ITAPS geometry interface
 *
 */
#include "FBiGeom.h"
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#include "FBiGeom_MOAB.hpp"
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#include "iMesh.h"
#include <iostream>
#include <set>
#include <algorithm>
#include <vector>
#include <iterator>
#include <algorithm>
#include <iomanip>
#include <assert.h>
#include <string.h>
#include <math.h>
#define CHECK( STR ) if (err != iBase_SUCCESS) return print_error( STR, err, geom, __FILE__, __LINE__ )

#define STRINGIFY(S) XSTRINGIFY(S)
#define XSTRINGIFY(S) #S

static bool print_error(const char* desc, int err, FBiGeom_Instance geom,
      const char* file, int line) {
   char buffer[1024];
   FBiGeom_getDescription(geom, buffer, sizeof(buffer));
   buffer[sizeof(buffer) - 1] = '\0';

   std::cerr << "ERROR: " << desc << std::endl << "  Error code: " << err
         << std::endl << "  Error desc: " << buffer << std::endl
         << "  At        : " << file << ':' << line << std::endl;

   return false; // must always return false or CHECK macro will break
}

typedef iBase_TagHandle TagHandle;
typedef iBase_EntityHandle GentityHandle;
typedef iBase_EntitySetHandle GentitysetHandle;

extern void FBiGeom_newGeomFromMesh( iMesh_Instance mesh, iBase_EntitySetHandle set,
                          const char *options, FBiGeom_Instance *geom,
                          int *err, int options_len);
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// the second destructor
extern void FBiGeom_dtor2(FBiGeom_Instance instance, int* err);
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/* Frees allocated arrays for us */
template<typename T> class SimpleArray {
private:
   T* arr;
   int arrSize;
   int arrAllocated;

public:
   SimpleArray() :
      arr(0), arrSize(0), arrAllocated(0) {
   }
   SimpleArray(unsigned s) :
      arrSize(s), arrAllocated(s) {
      arr = (T*) malloc(s * sizeof(T));
      for (unsigned i = 0; i < s; ++i)
         new (arr + i) T();
   }

   ~SimpleArray() {
      for (int i = 0; i < size(); ++i)
         arr[i].~T();
      free(arr);
   }

   T** ptr() {
      return &arr;
   }
   int& size() {
      return arrSize;
   }
   int size() const {
      return arrSize;
   }
   int& capacity() {
      return arrAllocated;
   }
   int capacity() const {
      return arrAllocated;
   }

   typedef T* iterator;
   typedef const T* const_iterator;
   iterator begin() {
      return arr;
   }
   const_iterator begin() const {
      return arr;
   }
   iterator end() {
      return arr + arrSize;
   }
   const_iterator end() const {
      return arr + arrSize;
   }

   T& operator[](unsigned idx) {
      return arr[idx];
   }
   T operator[](unsigned idx) const {
      return arr[idx];
   }
};

#define ARRAY_INOUT( A ) A.ptr(), &A.capacity(), &A.size()
#define ARRAY_IN( A ) &A[0], A.size()

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bool smooth_test(const std::string &filename, FBiGeom_Instance);
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bool tags_test(FBiGeom_Instance geom);
bool tag_get_set_test(FBiGeom_Instance geom);
bool tag_info_test(FBiGeom_Instance geom);
bool gentityset_test(FBiGeom_Instance geom, bool /*multiset*/, bool /*ordered*/);
bool topology_adjacencies_test(FBiGeom_Instance geom);
bool geometry_evaluation_test(FBiGeom_Instance geom);
bool construct_test(FBiGeom_Instance geom);
bool primitives_test(FBiGeom_Instance geom);
bool transforms_test(FBiGeom_Instance geom);
bool booleans_test(FBiGeom_Instance geom);
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bool shutdown_test2(FBiGeom_Instance geom, std::string &engine_opt);
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bool save_entset_test(FBiGeom_Instance geom);
bool mesh_size_test(FBiGeom_Instance geom);
bool normals_test(FBiGeom_Instance geom);

bool ray_test(FBiGeom_Instance geom);

void handle_error_code(const bool result, int &number_failed,
      int &/*number_not_implemented*/, int &number_successful) {
   if (result) {
      std::cout << "Success";
      number_successful++;
   } else {
      std::cout << "Failure";
      number_failed++;
   }
}

int main(int argc, char *argv[]) {
   std::string filename = STRINGIFY(MESHDIR) "/shell.h5m";

   if (argc == 1) {
      std::cout << "Using default input file: " << filename << std::endl;
   } else if (argc == 2) {
      filename = argv[1];
   } else {
      std::cerr << "Usage: " << argv[0] << " [geom_filename]" << std::endl;
      return 1;
   }

   int err;
   int number_tests = 0;
   int number_tests_successful = 0;
   int number_tests_not_implemented = 0;
   int number_tests_failed = 0;

   // initialize the FBiGeom, in a different way
   iMesh_Instance mesh = NULL;
   FBiGeom_Instance geom;
   iMesh_newMesh(NULL, &mesh, &err, 0);
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   if (err != iBase_SUCCESS)
     std::cerr << " Error code: " << err
              << "  At        : " << __FILE__ << ':' << __LINE__ << std::endl;
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   iBase_EntitySetHandle root_set;
   iMesh_createEntSet(mesh, 0, &root_set, &err);
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   if (err != iBase_SUCCESS)
     std::cerr << " Error code: " << err << " failed to create a model set"
                 << "  At        : " << __FILE__ << ':' << __LINE__  << std::endl;
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   iMesh_load(mesh, root_set, filename.c_str(), NULL, &err, filename.length(), 0);
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   if (err != iBase_SUCCESS)
     std::cerr << " Error code: " << err << " failed load the file"
                    << "  At        : " << __FILE__ << ':' << __LINE__  << std::endl;
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   std::string opts("SMOOTH;");
   // new constructor
   FBiGeom_newGeomFromMesh(mesh, root_set, opts.c_str(), &geom, &err, opts.length());

   CHECK( "Interface initialization didn't work properly." );

   // Print out Header information
   std::cout << "\n\nITAPS GEOMETRY INTERFACE TEST PROGRAM:\n\n";
   // gLoad test

   bool result;
   std::cout << "   Smooth faceting load and initialization: \n";
   result = smooth_test(filename, geom);
   handle_error_code(result, number_tests_failed, number_tests_not_implemented,
         number_tests_successful);

   number_tests++;
   std::cout << "\n";

   // tags test
   std::cout << "   tags: ";
   result = tags_test(geom);
   handle_error_code(result, number_tests_failed, number_tests_not_implemented,
         number_tests_successful);
   number_tests++;
   std::cout << "\n";
   /*
    // gentitysets test
    std::cout << "   gentity sets: ";
    result = gentityset_test(geom, false, false);
    handle_error_code(result, number_tests_failed,
    number_tests_not_implemented,
    number_tests_successful);
    number_tests++;
    std::cout << "\n";
    */
   // topology adjacencies test
   std::cout << "   topology adjacencies: ";
   result = topology_adjacencies_test(geom);
   handle_error_code(result, number_tests_failed, number_tests_not_implemented,
         number_tests_successful);
   number_tests++;
   std::cout << "\n";

   // geometry evaluation test
   std::cout << "   geometry evaluation: \n";
   result = geometry_evaluation_test(geom);
   handle_error_code(result, number_tests_failed, number_tests_not_implemented,
         number_tests_successful);
   number_tests++;
   std::cout << "\n";

   // normals evaluation test
   std::cout << "   normals geometry evaluation: \n";
   result = normals_test(geom);
   handle_error_code(result, number_tests_failed, number_tests_not_implemented,
         number_tests_successful);
   number_tests++;
   std::cout << "\n";

   // ray tracing test
   std::cout << "   ray intersection test: \n";
   result = ray_test(geom);
   handle_error_code(result, number_tests_failed, number_tests_not_implemented,
            number_tests_successful);
   number_tests++;
   std::cout << "\n";
   /*
    // construct test
    std::cout << "   construct: ";
    result = construct_test(geom);
    handle_error_code(result, number_tests_failed,
    number_tests_not_implemented,
    number_tests_successful);
    number_tests++;
    std::cout << "\n";

    // primitives test
    std::cout << "   primitives: ";
    result = primitives_test(geom);
    handle_error_code(result, number_tests_failed,
    number_tests_not_implemented,
    number_tests_successful);
    number_tests++;
    std::cout << "\n";

    // transforms test
    std::cout << "   transforms: ";
    result = transforms_test(geom);
    handle_error_code(result, number_tests_failed,
    number_tests_not_implemented,
    number_tests_successful);
    number_tests++;
    std::cout << "\n";

    // booleans test
    std::cout << "   booleans: ";
    result = booleans_test(geom);
    handle_error_code(result, number_tests_failed,
    number_tests_not_implemented,
    number_tests_successful);
    number_tests++;
    std::cout << "\n";

    #if defined(HAVE_ACIS) && !defined(FORCE_OCC)
    std::cout << "   mesh size: ";
    result = mesh_size_test(geom);
    handle_error_code(result, number_tests_failed,
    number_tests_not_implemented,
    number_tests_successful);
    number_tests++;
    std::cout << "\n";

    // save entset test
    std::cout << "   save entset: ";
    result = save_entset_test(geom);
    handle_error_code(result, number_tests_failed,
    number_tests_not_implemented,
    number_tests_successful);
    number_tests++;
    std::cout << "\n";
    #endif
    */
   // shutdown test
   std::cout << "   shutdown: ";
   std::string engine_opt;
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   result = shutdown_test2(geom, engine_opt);
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   handle_error_code(result, number_tests_failed, number_tests_not_implemented,
         number_tests_successful);
   number_tests++;
   std::cout << "\n";

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   // shutdown imesh instance too
   iMesh_dtor(mesh, &err);
   CHECK( "shutdown imesh error" );
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   // summary

   std::cout << "\nTSTT TEST SUMMARY: \n" << "   Number Tests:           "
         << number_tests << "\n" << "   Number Successful:      "
         << number_tests_successful << "\n" << "   Number Not Implemented: "
         << number_tests_not_implemented << "\n"
         << "   Number Failed:          " << number_tests_failed << "\n\n"
         << std::endl;

   return number_tests_failed;
}

/*!
 @test
 Load Mesh
 @li Load a mesh file
 */

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bool smooth_test(const std::string &filename, FBiGeom_Instance geom) {
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   int err;
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   char opts[] = "SMOOTH;";
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   FBiGeom_load(geom, &filename[0], opts, &err, filename.length(), 8);
   //FBiGeom_load( geom, &filename[0], 0, &err, filename.length(), 0 );
   CHECK( "ERROR : can not load a geometry" );

   iBase_EntitySetHandle root_set;
   FBiGeom_getRootSet(geom, &root_set, &err);
   CHECK( "ERROR : getRootSet failed!" );

   // print out the number of entities
   std::cout << "Model contents: " << std::endl;
   const char *gtype[] = { "vertices: ", "edges: ", "faces: ", "regions: " };
   for (int i = 0; i <= 3; ++i) {
      int count;
      FBiGeom_getNumOfType(geom, root_set, i, &count, &err);
      CHECK( "Error: problem getting entities after gLoad." );
      std::cout << gtype[i] << count << std::endl;
   }

   return true;
}
/*!
 @test
 Test tag creating, reading, writing, deleting
 @li Load a mesh file
 */
bool tags_test(FBiGeom_Instance geom) {
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   bool success = tag_info_test(geom);
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   if (!success)
      return success;

   success = tag_get_set_test(geom);
   if (!success)
      return success;

   return true;
}

bool tag_info_test(FBiGeom_Instance geom) {
   int err;

   iBase_EntitySetHandle root_set;
   FBiGeom_getRootSet(geom, &root_set, &err);
   CHECK( "ERROR : getRootSet failed!" );

   // create an arbitrary tag, size 4
   iBase_TagHandle this_tag, tmp_handle;
   std::string tag_name("tag_info tag"), tmp_name;
   FBiGeom_createTag(geom, &tag_name[0], 4, iBase_BYTES, &this_tag, &err,
         tag_name.length());
   CHECK( "ERROR : can not create a tag." );

   // get information on the tag

   char name_buffer[256];
   FBiGeom_getTagName(geom, this_tag, name_buffer, &err, sizeof(name_buffer));
   CHECK( "ERROR : Couldn't get tag name." );
   if (tag_name != name_buffer) {
      std::cerr << "ERROR: getTagName returned '" << name_buffer
            << "' for tag created as '" << tag_name << "'" << std::endl;
      return false;
   }

   FBiGeom_getTagHandle(geom, &tag_name[0], &tmp_handle, &err, tag_name.length());
   CHECK( "ERROR : Couldn't get tag handle." );
   if (tmp_handle != this_tag) {
      std::cerr << "ERROR: getTagHandle didn't return consistent result."
            << std::endl;
      return false;
   }

   int tag_size;
   FBiGeom_getTagSizeBytes(geom, this_tag, &tag_size, &err);
   CHECK( "ERROR : Couldn't get tag size." );
   if (tag_size != 4) {
      std::cerr << "ERROR: getTagSizeBytes: expected 4, got " << tag_size
            << std::endl;
      return false;
   }

   FBiGeom_getTagSizeValues(geom, this_tag, &tag_size, &err);
   CHECK( "ERROR : Couldn't get tag size." );
   if (tag_size != 4) {
      std::cerr << "ERROR: getTagSizeValues: expected 4, got " << tag_size
            << std::endl;
      return false;
   }

   int tag_type;
   FBiGeom_getTagType(geom, this_tag, &tag_type, &err);
   CHECK( "ERROR : Couldn't get tag type." );
   if (tag_type != iBase_BYTES) {
      std::cerr << "ERROR: getTagType: expected " << iBase_BYTES << ", got "
            << tag_type << std::endl;
      return false;
   }

   FBiGeom_destroyTag(geom, this_tag, true, &err);
   CHECK( "ERROR : Couldn't delete a tag." );

   // print information about all the tags in the model

   std::set<iBase_TagHandle> tags;
   SimpleArray<iBase_EntityHandle> entities;
   FBiGeom_getEntities(geom, root_set, iBase_ALL_TYPES, ARRAY_INOUT(entities), &err );
   CHECK( "getEntities( ..., iBase_ALL_TYPES, ... ) failed." );
   for (int i = 0; i < entities.size(); ++i) {
      SimpleArray<iBase_TagHandle> tag_arr;
      FBiGeom_getAllTags( geom, entities[i], ARRAY_INOUT(tag_arr), &err);
      CHECK( "getAllTags failed." );
      std::copy( tag_arr.begin(), tag_arr.end(), std::inserter( tags, tags.begin() ) );
   }

   std::cout << "Tags defined on model: ";
   bool first = true;
   for (std::set<iBase_TagHandle>::iterator sit = tags.begin(); sit != tags.end(); ++sit) {
      FBiGeom_getTagName( geom, *sit, name_buffer, &err, sizeof(name_buffer) );
      name_buffer[sizeof(name_buffer)-1] = '\0'; // mnake sure of NUL termination
      CHECK( "getTagName failed." );

      if (!first) std::cout << ", ";
      std::cout << name_buffer;
      first = false;
   }
   if (first) std::cout << "<none>";
   std::cout << std::endl;

   return true;
}

bool tag_get_set_test(FBiGeom_Instance geom) {
   int err;

   // create an arbitrary tag, size 4
   iBase_TagHandle this_tag;
   std::string tag_name("tag_get_set tag");
   FBiGeom_createTag(geom, &tag_name[0], sizeof(int), iBase_BYTES, &this_tag,
         &err, tag_name.length());
   CHECK( "ERROR : can not create a tag for get_set test." );

   iBase_EntitySetHandle root_set;
   FBiGeom_getRootSet(geom, &root_set, &err);
   CHECK( "ERROR : getRootSet failed!" );

   // set this tag to an integer on each entity; keep track of total sum
   int sum = 0, num = 0, dim;
   for (dim = 0; dim <= 3; dim++) {
      SimpleArray<iBase_EntityHandle> gentity_handles;
      FBiGeom_getEntities(geom, root_set, dim, ARRAY_INOUT( gentity_handles ), &err );
      int num_ents = gentity_handles.size();
      std::vector<int> tag_vals( num_ents );
      for (int i = 0; i < num_ents; ++i) {
         tag_vals[i] = num;
         sum += num;
         ++num;
      }

      FBiGeom_setArrData( geom, ARRAY_IN( gentity_handles ),
            this_tag,
            (char*)&tag_vals[0], tag_vals.size()*sizeof(int),
            &err );
      CHECK( "ERROR : can't set tag on entities" );
   }

   // check tag values for entities now
   int get_sum = 0;
   for (dim = 0; dim <= 3; dim++) {
      SimpleArray<iBase_EntityHandle> gentity_handles;
      FBiGeom_getEntities( geom, root_set, dim, ARRAY_INOUT( gentity_handles ), &err );
      int num_ents = gentity_handles.size();

      SimpleArray<char> tag_vals;
      FBiGeom_getArrData( geom, ARRAY_IN( gentity_handles ), this_tag,
          (void**)tag_vals.ptr(), &tag_vals.capacity(), &tag_vals.size(), &err );
      CHECK( "ERROR : can't get tag on entities" );

      int* tag_ptr = (int*)(&tag_vals[0]);
      for (int i = 0; i < num_ents; ++i)
      get_sum += tag_ptr[i];
   }

   if (get_sum != sum) {
      std::cerr << "ERROR: getData didn't return consistent results." << std::endl;
      return false;
   }

   FBiGeom_destroyTag( geom, this_tag, true, &err );
   CHECK( "ERROR : couldn't delete tag." );

   return true;
}

/*!
 @test
 TSTT gentity sets test (just implemented parts for now)
 @li Check gentity sets
 */
bool gentityset_test(FBiGeom_Instance geom, bool /*multiset*/, bool /*ordered*/) {
   int num_type = 4;
   iBase_EntitySetHandle ges_array[4];
   int number_array[4];
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   //int num_all_gentities_super = 0;
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   int ent_type = iBase_VERTEX;

   int err;
   iBase_EntitySetHandle root_set;
   FBiGeom_getRootSet(geom, &root_set, &err);
   CHECK( "ERROR : getRootSet failed!" );

   // get the number of sets in the whole model
   int all_sets = 0;
   FBiGeom_getNumEntSets(geom, root_set, 0, &all_sets, &err);
   CHECK( "Problem getting the number of all gentity sets in whole model." );

   // add gentities to entitysets by type
   for (; ent_type < num_type; ent_type++) {
      // initialize the entityset
      FBiGeom_createEntSet(geom, true, &ges_array[ent_type], &err);
      CHECK( "Problem creating entityset." );

      // get entities by type in total "mesh"
      SimpleArray<iBase_EntityHandle> gentities;
      FBiGeom_getEntities(geom, root_set, ent_type, ARRAY_INOUT(gentities), &err );
      CHECK( "Failed to get gentities by type in gentityset_test." );

      // add gentities into gentity set
      FBiGeom_addEntArrToSet( geom, ARRAY_IN( gentities ), ges_array[ent_type], &err );
      CHECK( "Failed to add gentities in entityset_test." );

      // Check to make sure entity set really has correct number of entities in it
      FBiGeom_getNumOfType( geom, ges_array[ent_type], ent_type, &number_array[ent_type], &err );
      CHECK( "Failed to get number of gentities by type in entityset_test." );

      // compare the number of entities by type
      int num_type_gentity = gentities.size();

      if (number_array[ent_type] != num_type_gentity)
      {
         std::cerr << "Number of gentities by type is not correct"
         << std::endl;
         return false;
      }

      // add to number of all entities in super set
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      //num_all_gentities_super += num_type_gentity;
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   }

   // make a super set having all entitysets
   iBase_EntitySetHandle super_set;
   FBiGeom_createEntSet( geom, true, &super_set, &err );
   CHECK( "Failed to create a super set in gentityset_test." );

   for (int i = 0; i < num_type; i++) {
      FBiGeom_addEntSet( geom, ges_array[i], super_set, &err );
      CHECK( "Failed to create a super set in gentityset_test." );
   }

   //----------TEST BOOLEAN OPERATIONS----------------//

   iBase_EntitySetHandle temp_ges1;
   FBiGeom_createEntSet( geom, true, &temp_ges1, &err );
   CHECK( "Failed to create a super set in gentityset_test." );

   // Subtract
   // add all EDGEs and FACEs to temp_es1
   // get all EDGE entities
   SimpleArray<iBase_EntityHandle> gedges, gfaces, temp_gentities1;
   FBiGeom_getEntities( geom, ges_array[iBase_EDGE], iBase_EDGE, ARRAY_INOUT(gedges), &err );
   CHECK( "Failed to get gedge gentities in gentityset_test." );

   // add EDGEs to ges1
   FBiGeom_addEntArrToSet( geom, ARRAY_IN(gedges), temp_ges1, &err );
   CHECK( "Failed to add gedge gentities in gentityset_test." );

   // get all FACE gentities
   FBiGeom_getEntities( geom, ges_array[iBase_FACE], iBase_FACE, ARRAY_INOUT(gfaces), &err );
   CHECK( "Failed to get gface gentities in gentityset_test." );

   // add FACEs to es1
   FBiGeom_addEntArrToSet( geom, ARRAY_IN(gfaces), temp_ges1, &err );
   CHECK( "Failed to add gface gentities in gentityset_test." );

   // subtract EDGEs
   FBiGeom_subtract( geom, temp_ges1, ges_array[iBase_EDGE], &temp_ges1, &err );
   CHECK( "Failed to subtract gentitysets in gentityset_test." );

   FBiGeom_getEntities( geom, temp_ges1, iBase_FACE, ARRAY_INOUT(temp_gentities1), &err );
   CHECK( "Failed to get gface gentities in gentityset_test." );

   if (gfaces.size() != temp_gentities1.size()) {
      std::cerr << "Number of entitysets after subtraction not correct \
             in gentityset_test." << std::endl;
      return false;
   }

   // check there's nothing but gfaces in temp_ges1
   int num_gents;
   FBiGeom_getNumOfType( geom, temp_ges1, iBase_EDGE, &num_gents, &err );
   CHECK( "Failed to get dimensions of gentities in gentityset_test." );
   if (0 != num_gents) {
      std::cerr << "Subtraction failed to remove all edges" << std::endl;
      return false;
   }

   //------------Intersect------------
   //

   // clean out the temp_ges1
   FBiGeom_rmvEntArrFromSet( geom, ARRAY_IN(gfaces), temp_ges1, &err );
   CHECK( "Failed to remove gface gentities in gentityset_test." );

   // check if it is really cleaned out
   FBiGeom_getNumOfType( geom, temp_ges1, iBase_FACE, &num_gents, &err );
   CHECK( "Failed to get number of gentities by type in gentityset_test." );

   if (num_gents != 0) {
      std::cerr << "failed to remove correctly." << std::endl;
      return false;
   }

   // add EDGEs to temp ges1
   FBiGeom_addEntArrToSet( geom, ARRAY_IN(gedges), temp_ges1, &err );
   CHECK( "Failed to add gedge gentities in gentityset_test." );

   // add FACEs to temp ges1
   FBiGeom_addEntArrToSet( geom, ARRAY_IN(gfaces), temp_ges1, &err );
   CHECK( "Failed to add gface gentities in gentityset_test." );

   // intersect temp_ges1 with gedges set
   // temp_ges1 entityset is altered
   FBiGeom_intersect( geom, temp_ges1, ges_array[iBase_EDGE], &temp_ges1, &err );
   CHECK( "Failed to intersect in gentityset_test." );

   // try to get FACEs, but there should be nothing but EDGE
   FBiGeom_getNumOfType( geom, temp_ges1, iBase_FACE, &num_gents, &err );
   CHECK( "Failed to get gface gentities in gentityset_test." );

   if (num_gents != 0) {
      std::cerr << "wrong number of gfaces." << std::endl;
      return false;
   }

   //-------------Unite--------------

   // get all regions
   iBase_EntitySetHandle temp_ges2;
   SimpleArray<iBase_EntityHandle> gregions;

   FBiGeom_createEntSet( geom, true, &temp_ges2, &err );
   CHECK( "Failed to create a temp gentityset in gentityset_test." );

   FBiGeom_getEntities( geom, ges_array[iBase_REGION], iBase_REGION, ARRAY_INOUT(gregions), &err );
   CHECK( "Failed to get gregion gentities in gentityset_test." );

   // add REGIONs to temp es2
   FBiGeom_addEntArrToSet( geom, ARRAY_IN(gregions), temp_ges2, &err );
   CHECK( "Failed to add gregion gentities in gentityset_test." );

   // unite temp_ges1 and temp_ges2
   // temp_ges1 gentityset is altered
   FBiGeom_unite( geom, temp_ges1, temp_ges2, &temp_ges1, &err );
   CHECK( "Failed to unite in gentityset_test." );

   // perform the check
   FBiGeom_getNumOfType( geom, temp_ges1, iBase_REGION, &num_gents, &err );
   CHECK( "Failed to get number of gregion gentities by type in gentityset_test." );

   if (num_gents != number_array[iBase_REGION]) {
      std::cerr << "different number of gregions in gentityset_test." << std::endl;
      return false;
   }

   //--------Test parent/child stuff in entiysets-----------

   // Add 2 sets as children to another
   iBase_EntitySetHandle parent_child;
   FBiGeom_createEntSet( geom, true, &parent_child, &err );
   CHECK( "Problem creating gentityset in gentityset_test." );

   FBiGeom_addPrntChld( geom, ges_array[iBase_VERTEX], parent_child, &err );
   CHECK( "Problem add parent in gentityset_test." );

   // check if parent is really added
   SimpleArray<iBase_EntitySetHandle> parents;
   FBiGeom_getPrnts( geom, parent_child, 1, ARRAY_INOUT(parents), &err );
   CHECK( "Problem getting parents in gentityset_test." );

   if (parents.size() != 1) {
      std::cerr << "number of parents is not correct in gentityset_test."
      << std::endl;
      return false;
   }

   // add parent and child
   //sidl::array<void*> parent_child_array = sidl::array<void*>::create1d(1);
   //int num_parent_child_array;
   //sidl::array<void*> temp_gedge_array = sidl::array<void*>::create1d(1);
   //int num_temp_gedge_array;
   //parent_child_array.set(0, parent_child);
   //temp_gedge_array.set(0, ges_array[TSTTG::EntityType_EDGE]);
   FBiGeom_addPrntChld( geom, ges_array[iBase_EDGE], parent_child, &err );
   CHECK( "Problem adding parent and child in gentityset_test." );

   //sidl::array<void*> temp_gface_array = sidl::array<void*>::create1d(1);
   //int num_temp_gface_array;
   //temp_gface_array.set(0, ges_array[TSTTG::EntityType_FACE]);
   FBiGeom_addPrntChld( geom, parent_child, ges_array[iBase_FACE], &err );
   CHECK( "Problem adding parent and child in gentityset_test." );

   // add child
   FBiGeom_addPrntChld( geom, parent_child, ges_array[iBase_REGION], &err );
   CHECK( "Problem adding child in gentityset_test." );

   // get the number of parent gentitysets
   num_gents = -1;
   FBiGeom_getNumPrnt( geom, parent_child, 1, &num_gents, &err );
   CHECK( "Problem getting number of parents in gentityset_test." );

   if (num_gents != 2) {
      std::cerr << "number of parents is not correct in gentityset_test."
      << std::endl;
      return false;
   }

   // get the number of child gentitysets
   num_gents = -1;
   FBiGeom_getNumChld( geom, parent_child, 1, &num_gents, &err );
   CHECK( "Problem getting number of children in gentityset_test." );

   if (num_gents != 2) {
      std::cerr << "number of children is not correct in gentityset_test."
      << std::endl;
      return false;
   }

   SimpleArray<iBase_EntitySetHandle> children;
   FBiGeom_getChldn( geom, parent_child, 1, ARRAY_INOUT(children), &err );
   CHECK( "Problem getting children in gentityset_test." );

   if (children.size() != 2) {
      std::cerr << "number of children is not correct in gentityset_test."
      << std::endl;
      return false;
   }

   // remove children
   FBiGeom_rmvPrntChld( geom, parent_child, ges_array[iBase_FACE], &err );
   CHECK( "Problem removing parent child in gentityset_test." );

   // get the number of child gentitysets
   FBiGeom_getNumChld( geom, parent_child, 1, &num_gents, &err );
   CHECK( "Problem getting number of children in gentityset_test." );

   if (num_gents != 1) {
      std::cerr << "number of children is not correct in gentityset_test."
      << std::endl;
      return false;
   }

   // parent_child and ges_array[TSTTG::EntityType_EDGE] should be related
   int result = 0;
   FBiGeom_isChildOf( geom, ges_array[iBase_EDGE], parent_child, &result, &err );
   CHECK( "Problem checking relation in gentityset_test." );
   if (!result) {
      std::cerr << "parent_child and ges_array[TSTTG::EntityType_EDGE] should be related" << std::endl;
      return false;
   }

   // ges_array[TSTTG::EntityType_FACE] and ges_array[TSTTG::REGION] are not related
   result = 2;
   FBiGeom_isChildOf( geom, ges_array[iBase_FACE], ges_array[iBase_REGION], &result, &err );
   if (result) {
      std::cerr << "ges_array[TSTTG::REGION] and ges_array[TSTTG::EntityType_FACE] should not be related" << std::endl;
      return false;
   }

   //--------test modify and query functions-----------------------------

   // check the number of gentity sets in whole mesh
   SimpleArray<iBase_EntitySetHandle> gentity_sets;
   FBiGeom_getEntSets( geom, root_set, 1, ARRAY_INOUT( gentity_sets ), &err );
   CHECK( "Problem to get all gentity sets in mesh." );

   if (gentity_sets.size() != all_sets + 8) {
      std::cerr << "the number of gentity sets in whole mesh should be 8 times of num_iter."
      << std::endl;
      return false;
   }

   // get all gentity sets in super set
   SimpleArray<iBase_EntitySetHandle> ges_array1;
   FBiGeom_getEntSets( geom, super_set, 1, ARRAY_INOUT( ges_array1 ), &err );
   CHECK( "Problem to get gentity sets in super set." );

   // get the number of gentity sets in super set
   int num_super;
   FBiGeom_getNumEntSets( geom, super_set, 1, &num_super, &err );
   CHECK( "Problem to get the number of all gentity sets in super set." );

   // the number of gentity sets in super set should be same
   if (num_super != ges_array1.size()) {
      std::cerr << "the number of gentity sets in super set should be same." << std::endl;
      return false;
   }

   // get all entities in super set
   SimpleArray<iBase_EntitySetHandle> all_gentities;
   FBiGeom_getEntSets( geom, super_set, 1, ARRAY_INOUT( all_gentities ), &err );
   CHECK( "Problem to get all gentities in super set." );

   // compare the number of all gentities in super set
   // HJK : num_hops is not implemented
   //if (num_all_gentities_super != ARRAY_SIZE(all_gentities)) {
   //std::cerr << "number of all gentities in super set should be same." << std::endl;
   //success = false;
   //}

   // test add, remove and get all entitiy sets using super set
   // check GetAllGentitysets works recursively and dosen't return
   // multi sets
   for (int k = 0; k < num_super; k++) {
      // add gentity sets of super set to each gentity set of super set
      // make multiple child super sets
      iBase_EntitySetHandle ges_k = ges_array1[k];

      for (int a = 0; a < ges_array1.size(); a++) {
         FBiGeom_addEntSet( geom, ges_array1[a], ges_k, &err );
         CHECK( "Problem to add entity set." );
      }

      // add super set to each entity set
      //    sidl::array<GentitysetHandle> superset_array
      //= sidl::array<GentitysetHandle>::create1d(1);
      //superset_array.set(0, super_set);
      //int num_superset_array;

      FBiGeom_addEntSet( geom, super_set, ges_k, &err );
      CHECK( "Problem to add super set to gentitysets." );

      // add one gentity sets multiple times
      // HJK: ??? how to deal this case?
      //sidl::array<GentitysetHandle> temp_array1
      //= sidl::array<GentitysetHandle>::create1d(1);
      //int num_temp_array1;
      //temp_array1.set(0, temp_ges1);

      //for (int l = 0; l < 3; l++) {
      FBiGeom_addEntSet( geom, temp_ges1, ges_k, &err );
      CHECK( "Problem to add temp set to gentitysets." );
      //}
   }

   return true;
}

/*!
 @test
 TSTTG topology adjacencies Test
 @li Check topology information
 @li Check adjacency
 */
// make each topological entity vectors, check their topology
// types, get interior and exterior faces of model
bool topology_adjacencies_test(FBiGeom_Instance geom) {
   int i, err;
   iBase_EntitySetHandle root_set;
   FBiGeom_getRootSet(geom, &root_set, &err);
   CHECK( "ERROR : getRootSet failed!" );

   int top = iBase_VERTEX;
   int num_test_top = iBase_ALL_TYPES;
   std::vector<std::vector<iBase_EntityHandle> > gentity_vectors(num_test_top);

   // fill the vectors of each topology entities
   // like lines vector, polygon vector, triangle vector,
   // quadrilateral, polyhedrron, tet, hex, prism, pyramid,
   // septahedron vectors
   for (i = top; i < num_test_top; i++) {
      SimpleArray<iBase_EntityHandle> gentities;
      FBiGeom_getEntities(geom, root_set, i, ARRAY_INOUT( gentities ), &err );
      CHECK("Failed to get gentities in adjacencies_test.");

      gentity_vectors[i].resize( gentities.size() );
      std::copy( gentities.begin(), gentities.end(), gentity_vectors[i].begin() );
   }

   // check number of entities for each topology
   for (i = top; i < num_test_top; i++) {
      int num_tops = 0;
      FBiGeom_getNumOfType( geom, root_set, i, &num_tops, &err );
      CHECK( "Failed to get number of gentities in adjacencies_test." );

      if (static_cast<int>(gentity_vectors[i].size()) != num_tops) {
         std::cerr << "Number of gentities doesn't agree with number returned for dimension "
         << i << std::endl;
         return false;
      }
   }

   // check adjacencies in both directions
   std::vector<iBase_EntityHandle>::iterator vit;
   for (i = iBase_REGION; i >= iBase_VERTEX; i--) {
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      for (vit = gentity_vectors[i].begin(); vit != gentity_vectors[i].end(); ++vit) {
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         iBase_EntityHandle this_gent = *vit;

         // check downward adjacencies
         for (int j = iBase_VERTEX; j < i; j++) {

            SimpleArray<iBase_EntityHandle> lower_ents;
            FBiGeom_getEntAdj( geom, this_gent, j, ARRAY_INOUT(lower_ents), &err );
            CHECK( "Bi-directional adjacencies test failed." );

            // for each of them, make sure they are adjacent to the upward ones
            int num_lower = lower_ents.size();
            for (int k = 0; k < num_lower; k++) {
               SimpleArray<iBase_EntityHandle> upper_ents;
               FBiGeom_getEntAdj( geom, lower_ents[k], i, ARRAY_INOUT(upper_ents), &err );
               CHECK( "Bi-directional adjacencies test failed." );
               if (std::find(upper_ents.begin(),upper_ents.end(), this_gent) ==
               upper_ents.end()) {
                  std::cerr << "Didn't find lower-upper adjacency which was supposed to be there, dims = "
                  << i << ", " << j << std::endl;
                  return false;
               }
            }
         }
      }
   }

   return true;
}

/*!
 @test
 FBiGeom_MOAB topology adjacencies Test
 @li Check topology information
 @li Check adjacency
 */
// make each topological entity vectors, check their topology
// types, get interior and exterior faces of model
bool geometry_evaluation_test(FBiGeom_Instance geom) {
   int i, err;
   iBase_EntitySetHandle root_set;
   FBiGeom_getRootSet(geom, &root_set, &err);
   CHECK( "ERROR : getRootSet failed!" );

   int top = iBase_VERTEX;
   int num_test_top = iBase_ALL_TYPES;
   std::vector<std::vector<iBase_EntityHandle> > gentity_vectors(num_test_top);

   // fill the vectors of each topology entities
   // like lines vector, polygon vector, triangle vector,
   // quadrilateral, polyhedrron, tet, hex, prism, pyramid,
   // septahedron vectors
   for (i = top; i < num_test_top; i++) {
      SimpleArray<iBase_EntityHandle> gentities;
      FBiGeom_getEntities(geom, root_set, i, ARRAY_INOUT( gentities ), &err );
      CHECK("Failed to get gentities in adjacencies_test.");

      gentity_vectors[i].resize( gentities.size() );
      std::copy( gentities.begin(), gentities.end(), gentity_vectors[i].begin() );
   }

   // check adjacencies in both directions
   double min[3], max[3], on[3];
   double near[3] = {.0, .0, .0};
   std::vector<iBase_EntityHandle>::iterator vit;
   for (i = iBase_REGION; i >= iBase_VERTEX; i--) {
      if (i != iBase_EDGE) {
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         for (vit = gentity_vectors[i].begin(); vit != gentity_vectors[i].end(); ++vit) {
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            iBase_EntityHandle this_gent = *vit;
            FBiGeom_getEntBoundBox(geom, this_gent, &min[0], &min[1], &min[2],
            &max[0], &max[1], &max[2], &err);
            CHECK("Failed to get bounding box of entity.");

            for (int j=0; j<3; j++)
            near[j] = (min[j]+max[j])/2;
            FBiGeom_getEntClosestPt(geom, this_gent, near[0], near[1], near[2],
            &on[0], &on[1], &on[2], &err);
            CHECK("Failed to get closest point on entity.");
            std::cout<<" entity of type " << i << " closest point to \n  " <<
            near[0] << " " << near[1] << " " << near[2] << "\n  is " << on[0] << " " << on[1] << " " << on[2] << "\n";
         }
      }
   }

   return true;
}
// 
//  test normals evaluations on the surface only
bool normals_test(FBiGeom_Instance geom) {
   int i, err;
   iBase_EntitySetHandle root_set;
   FBiGeom_getRootSet(geom, &root_set, &err);
   CHECK( "ERROR : getRootSet failed!" );

   int top = iBase_VERTEX;
   int num_test_top = iBase_ALL_TYPES;
   std::vector<std::vector<iBase_EntityHandle> > gentity_vectors(num_test_top);

   // fill the vectors of each topology entities
   // like lines vector, polygon vector, triangle vector,
   // quadrilateral, polyhedrron, tet, hex, prism, pyramid,
   // septahedron vectors
   for (i = top; i < num_test_top; i++) {
      SimpleArray<iBase_EntityHandle> gentities;
      FBiGeom_getEntities(geom, root_set, i, ARRAY_INOUT( gentities ), &err );
      CHECK("Failed to get gentities in adjacencies_test.");

      gentity_vectors[i].resize( gentities.size() );
      std::copy( gentities.begin(), gentities.end(), gentity_vectors[i].begin() );
   }

   // check adjacencies in both directions
   double min[3], max[3];
   double normal[3] = {.0, .0, .0};
   std::vector<iBase_EntityHandle>::iterator vit;
   for (i = iBase_REGION; i > iBase_EDGE; i--) {
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         iBase_EntityHandle this_gent = *vit;
         FBiGeom_getEntBoundBox(geom, this_gent, &min[0], &min[1], &min[2],
         &max[0], &max[1], &max[2], &err);
         CHECK("Failed to get bounding box of entity.");

         FBiGeom_getEntNrmlXYZ( geom, this_gent,
         (max[0]+min[0])/2,
         (max[1]+min[1])/2,
         (max[2]+min[2])/2,
         &normal[0],
         &normal[1],
         &normal[2],
         &err );

         CHECK("Failed to get normal to the closest point.");
         std::cout<<" entity of type " << i << " closest normal to center:\n  " <<
         normal[0] << " " << normal[1] << " " << normal[2] << "\n";
      }
   }

   return true;
}

//  test normals evaluations on the surface only
bool ray_test(FBiGeom_Instance geom) {
   int  err;
   iBase_EntitySetHandle root_set;
   FBiGeom_getRootSet(geom, &root_set, &err);
   CHECK( "ERROR : getRootSet failed!" );

   int top = iBase_FACE;

   SimpleArray<iBase_EntityHandle> faces;
   FBiGeom_getEntities(geom, root_set, top, ARRAY_INOUT( faces ), &err );
   CHECK("Failed to get gentities in adjacencies_test.");

   // check only the first face

   // check adjacencies in both directions
   double min[3], max[3];

   iBase_EntityHandle first_face = faces[0];

   FBiGeom_getEntBoundBox(geom, first_face, &min[0], &min[1], &min[2],
   &max[0], &max[1], &max[2], &err);
   CHECK("Failed to get bounding box of entity.");

   // assume that the ray shot from the bottom of the box (middle) is a pretty good candidate
   // in z direction
   double x = (min[0]+max[0])/2, y = (min[1]+max[1])/2, z = min[2];
   SimpleArray<iBase_EntityHandle> intersect_entity_handles;
   SimpleArray<double> intersect_coords;
   SimpleArray<double> param_coords;
   FBiGeom_getPntRayIntsct( geom,  x,  y,  z, // shot from
                                       0., 0., 1., // direction
                                       ARRAY_INOUT(intersect_entity_handles),
                                       iBase_INTERLEAVED,
                                       ARRAY_INOUT(intersect_coords),
                                       ARRAY_INOUT(param_coords),
                                       &err );

   CHECK("Failed to find ray intersections points ");
   for(int i=0; i<intersect_entity_handles.size(); i++)
   {
      int j;
      FBiGeom_getEntType( geom, intersect_entity_handles[i],
                               &j,&err);
      CHECK("Failed to get type of entity.");

      std::cout<<" entity of type " << j << " n: " << intersect_entity_handles[i]<< "\n"<<
            intersect_coords[3*i] << " " << intersect_coords[3*i+1] << " "
            << intersect_coords[3*i+2] << "\n" <<
            " distance: " << param_coords[i] << "\n";
   }

   return true;
}

/*!
 @test
 TSTTG construct Test
 @li Check construction of geometry
 */
bool construct_test(FBiGeom_Instance geom) {
   int err;
   iBase_EntityHandle new_body = 0;

   // construct a cylinder, sweep it about an axis, and delete the result
   iBase_EntityHandle cyl = 0;
   FBiGeom_createCylinder(geom, 1.0, 1.0, 0.0, &cyl, &err);
   // Is the minor radius really supposed to be zero??? - JK
   CHECK( "Creating cylinder failed." );

   // move it onto the y axis
   FBiGeom_moveEnt(geom, cyl, 0.0, 1.0, -0.5, &err);
   CHECK( "Problems moving surface." );

   // get the surface with max z
   iBase_EntityHandle max_surf = 0;
   SimpleArray<iBase_EntityHandle> surfs;
   FBiGeom_getEntAdj(geom, cyl, iBase_FACE, ARRAY_INOUT(surfs), &err );
   CHECK( "Problems getting max surf for rotation." );

   SimpleArray<double> max_corn, min_corn;
   FBiGeom_getArrBoundBox( geom, ARRAY_IN(surfs), iBase_INTERLEAVED,
   ARRAY_INOUT( min_corn ),
   ARRAY_INOUT( max_corn ),
   &err );
   CHECK( "Problems getting max surf for rotation." );
   double dtol = 1.0e-6;
   for (int i = 0; i < surfs.size(); ++i) {
      if ((max_corn[3*i+2]) <= dtol && (max_corn[3*i+2]) >= -dtol &&
      (min_corn[3*i+2]) <= dtol && (min_corn[3*i+2]) >= -dtol) {
         max_surf = surfs[i];
         break;
      }
   }

   if (0 == max_surf) {
      std::cerr << "Couldn't find max surf for rotation." << std::endl;
      return false;
   }

   // sweep it around the x axis
   FBiGeom_moveEnt( geom, cyl, 0.0, 1.0, 0.0, &err );
   CHECK( "Problems moving surface." );

   FBiGeom_sweepEntAboutAxis( geom, max_surf, 360.0, 1.0, 0.0, 0.0, &new_body, &err );
   CHECK( "Problems sweeping surface about axis." );

   // now delete
   FBiGeom_deleteEnt( geom, new_body, &err );
   CHECK( "Problems deleting cylinder or swept surface body." );

   // if we got here, we were successful
   return true;
}

static bool compare_box(const double* expected_min, const double* expected_max,
      const double* actual_min, const double* actual_max) {
   bool same = true;
   double dtol = 1.0e-6;

   for (int i = 0; i < 3; ++i) {
      if (expected_min[i] < actual_min[i] - dtol || expected_min[i] * 10
            > actual_min[i] || expected_max[i] > actual_max[i] + dtol
            || expected_max[i] * 10 < actual_max[i])
         same = false;
   }
   return same;
}

bool primitives_test(FBiGeom_Instance geom) {
   int err;
   SimpleArray<iBase_EntityHandle> prims(3);
   iBase_EntityHandle prim;

   FBiGeom_createBrick(geom, 1.0, 2.0, 3.0, &prim, &err);
   CHECK( "createBrick failed." );
   prims[0] = prim;

   FBiGeom_createCylinder(geom, 1.0, 4.0, 2.0, &prim, &err);
   CHECK( "createCylinder failed." );
   prims[1] = prim;

   FBiGeom_createTorus(geom, 2.0, 1.0, &prim, &err);
   CHECK( "createTorus failed." );
   prims[2] = prim;

   // verify the bounding boxes for Acis based entities
   SimpleArray<double> max_corn, min_corn;
   FBiGeom_getArrBoundBox(geom, ARRAY_IN(prims),iBase_INTERLEAVED,  ARRAY_INOUT(min_corn),
         ARRAY_INOUT(max_corn), &err );

         double preset_min_corn[] =
         // min brick corner xyz
         {  -0.5, -1.0, -1.5,
            // min cyl corner xyz
         -4.0, -2.0, -0.5,
         // min torus corner xyz
         -3.0, -3.0, -1.0
      };

      double preset_max_corn[] =
      // max brick corner xyz
         {  0.5, 1.0, 1.5,
            // max cyl corner xyz
         4.0, 2.0, 0.5,
         // max torus corner xyz
         3.0, 3.0, 1.0
      };

      if (!compare_box( preset_min_corn, preset_max_corn,
                  &min_corn[0], &max_corn[0] )) {
         std::cerr << "Box check failed for brick" << std::endl;
         return false;
      }

      if (!compare_box( preset_min_corn+3, preset_max_corn+3,
                  &min_corn[3], &max_corn[3] )) {
         std::cerr << "Box check failed for cylinder" << std::endl;
         return false;
      }

      if (!compare_box( preset_min_corn+6, preset_max_corn+6,
                  &min_corn[6], &max_corn[6] )) {
         std::cerr << "Box check failed for torus" << std::endl;
         return false;
      }
      // must have worked; delete the entities then return
         for (int i = 0; i < 3; ++i) {
            FBiGeom_deleteEnt( geom, prims[i], &err );
            CHECK( "Problems deleting primitive after boolean check." );
         }

         return true;
      }

bool transforms_test(FBiGeom_Instance geom) {
   int err;

   // construct a brick
   iBase_EntityHandle brick = 0;
   FBiGeom_createBrick(geom, 1.0, 2.0, 3.0, &brick, &err);
   CHECK( "Problems creating brick for transforms test." );

   // move it, then test bounding box
   FBiGeom_moveEnt(geom, brick, 0.5, 1.0, 1.5, &err);
   CHECK( "Problems moving brick for transforms test." );

   double bb_min[3], bb_max[3];
   FBiGeom_getEntBoundBox(geom, brick, bb_min, bb_min + 1, bb_min + 2, bb_max,
         bb_max + 1, bb_max + 2, &err);
   CHECK( "Problems getting bounding box after move." );

   double dtol = 1.0e-6;
   if ((bb_min[0]) >= dtol || (bb_min[0]) <= -dtol || (bb_min[1]) >= dtol
         || (bb_min[1]) <= -dtol || (bb_min[2]) >= dtol || (bb_min[2]) <= -dtol
         || (bb_max[0] - 1) >= dtol || 1 - bb_max[0] >= dtol || (bb_max[1] - 2)
         >= dtol || 2 - bb_max[1] >= dtol || (bb_max[2] - 3) >= dtol || 3
         - bb_max[2] >= dtol) {
      std::cerr << "Wrong bounding box after move." << std::endl;
      return false;
   }

   // now rotate it about +x, then test bounding box
   FBiGeom_rotateEnt(geom, brick, 90, 1.0, 0.0, 0.0, &err);
   CHECK( "Problems rotating brick for transforms test." );

   FBiGeom_getEntBoundBox(geom, brick, bb_min, bb_min + 1, bb_min + 2, bb_max,
         bb_max + 1, bb_max + 2, &err);
   CHECK( "Problems getting bounding box after rotate." );

   if ((bb_min[0]) >= dtol || -bb_min[0] >= dtol || (bb_min[1] + 3) >= dtol
         || -(bb_min[1] + 3) >= dtol || (bb_min[2]) >= dtol || -(bb_min[2])
         >= dtol || (bb_max[0] - 1) >= dtol || 1 - bb_max[0] >= dtol
         || (bb_max[1]) >= dtol || -(bb_max[1]) >= dtol || (bb_max[2] - 2)
         >= dtol || 2 - bb_max[2] >= dtol) {
      std::cerr << "Wrong bounding box after rotate." << std::endl;
      return false;
   }

   // now reflect through y plane; should recover original bb
   FBiGeom_reflectEnt(geom, brick, 0.0, 1.0, 0.0, &err);
   CHECK( "Problems reflecting brick for transforms test." );

   FBiGeom_getEntBoundBox(geom, brick, bb_min, bb_min + 1, bb_min + 2, bb_max,
         bb_max + 1, bb_max + 2, &err);
   CHECK( "Problems getting bounding box after reflect." );

   if ((bb_min[0]) >= dtol || -(bb_min[0]) >= dtol || (bb_min[1]) >= dtol
         || (bb_min[2]) >= dtol || -(bb_min[1]) >= dtol || -(bb_min[2]) >= dtol
         || (bb_max[0] - 1) >= dtol || 1 - bb_max[0] >= dtol || (bb_max[1] - 3)
         >= dtol || 3 - bb_max[1] >= dtol || (bb_max[2] - 2) >= dtol || 2
         - bb_max[2] >= dtol) {
      std::cerr << "Wrong bounding box after reflect." << std::endl;
      return false;
   }

   // must have worked; delete the entities then return
   FBiGeom_deleteEnt(geom, brick, &err);
   CHECK( "Problems deleting brick after transforms check." );
   return true;
}

bool booleans_test(FBiGeom_Instance geom) {
   int err;

   // construct a brick size 1, and a cylinder rad 0.25 height 2
   iBase_EntityHandle brick = 0, cyl = 0;
   FBiGeom_createBrick(geom, 1.0, 0.0, 0.0, &brick, &err);
   CHECK( "Problems creating brick for booleans test." );
   FBiGeom_createCylinder(geom, 1.0, 0.25, 0.0, &cyl, &err);
   CHECK( "Problems creating cylinder for booleans test." );

   // subtract the cylinder from the brick
   iBase_EntityHandle subtract_result = 0;
   FBiGeom_subtractEnts(geom, brick, cyl, &subtract_result, &err);
   CHECK( "Problems subtracting for booleans subtract test." );

   // section the brick
   iBase_EntityHandle section_result = 0;
   FBiGeom_sectionEnt(geom, subtract_result, 1.0, 0.0, 0.0, 0.25, true,
         &section_result, &err);
   CHECK( "Problems sectioning for booleans section test." );

   // unite the section result with a new cylinder
   FBiGeom_createCylinder(geom, 1.0, 0.25, 0.0, &cyl, &err);
   CHECK( "Problems creating cylinder for unite test." );
   iBase_EntityHandle unite_results;
   iBase_EntityHandle unite_input[] = { section_result, cyl };
   FBiGeom_uniteEnts(geom, unite_input, 2, &unite_results, &err);
   CHECK( "Problems uniting for booleans unite test." );

   FBiGeom_deleteEnt(geom, unite_results, &err);
   CHECK( "Problems deleting for booleans unite test." );
   return true;
}

static int get_entities(FBiGeom_Instance geom, int entity_type, std::vector<
      iBase_EntityHandle>& entities_out, iBase_TagHandle id_tag = 0,
      std::vector<int>* ids_out = 0) {
   int err, num;
   iBase_EntitySetHandle root;
   FBiGeom_getRootSet(geom, &root, &err);
   if (iBase_SUCCESS != err)
      return err;
   FBiGeom_getNumOfType(geom, root, entity_type, &num, &err);
   if (iBase_SUCCESS != err)
      return err;

   entities_out.resize(num);
   int junk1 = entities_out.size(), junk2;
   iBase_EntityHandle* junk_ptr = &entities_out[0];
   ;
   FBiGeom_getEntities(geom, root, entity_type, &junk_ptr, &junk1, &junk2, &err);
   if (iBase_SUCCESS != err)
      return err;
   assert( num == junk1 && num == junk2 );

   if (!ids_out)
      return iBase_SUCCESS;

   ids_out->resize(num);
   int* int_ptr = &(*ids_out)[0];
   FBiGeom_getIntArrData(geom, &entities_out[0], num, id_tag, &int_ptr, &junk1,
         &junk2, &err);
   if (iBase_SUCCESS != err)
      return err;
   assert( num == junk1 && num == junk2 );

   return iBase_SUCCESS;
}

static int check_firmness(FBiGeom_Instance geom, const std::vector<
      iBase_EntityHandle>& entities, const std::vector<int>& ids,
      iBase_TagHandle firmness_tag, const char* expected_value,
      const char* ent_type_str) {
   const int firmness_size = 4;
   std::vector<char> firmness(firmness_size * entities.size());

   char* byte_ptr = &firmness[0];
   int err, junk1 = firmness.size(), junk2 = entities.size() * firmness_size;
   FBiGeom_getArrData(geom, &entities[0], entities.size(), firmness_tag,
         (void**)&byte_ptr, &junk1, &junk2, &err);
   if (iBase_SUCCESS != err)
      return err;

   bool all_correct = true;
   for (unsigned i = 0; i < entities.size(); ++i)
      if (std::string(&firmness[firmness_size * i], firmness_size)
            != expected_value)
         all_correct = false;
   if (!all_correct) {
      std::cout << "ERROR: Expected \"" << expected_value << "\" firmness "
            << "for all " << ent_type_str << "." << std::endl;
      std::cout << "ID  Actual  " << std::endl;
      for (unsigned i = 0; i < entities.size(); ++i)
         std::cout << std::setw(2) << ids[i] << "  " << std::string(
               &firmness[firmness_size * i], firmness_size) << std::endl;
      return iBase_FAILURE;
   }

   return iBase_SUCCESS;
}

static int count_num_with_tag(FBiGeom_Instance geom, const std::vector<
      iBase_EntityHandle>& ents, iBase_TagHandle tag) {
   int err, bytes;
   FBiGeom_getTagSizeBytes(geom, tag, &bytes, &err);
   if (iBase_SUCCESS != err)
      return -1;
   std::vector<char> data(bytes);

   int success_count = 0;
   for (size_t i = 0; i < ents.size(); ++i) {
      char* ptr = &data[0];
      int junk1 = bytes, junk2;
      FBiGeom_getData(geom, ents[i], tag, (void**)&ptr, &junk1, &junk2, &err);
      if (iBase_TAG_NOT_FOUND == err)
         continue;
      if (iBase_SUCCESS != err)
         return -1;
      ++success_count;
   }

   return success_count;
}

bool mesh_size_test(FBiGeom_Instance geom) {
   const char* filename = STRINGIFY(SRCDIR) "/size.sat";
   int err, junk1, junk2;
   bool result = true;

   FBiGeom_deleteAll(geom, &err);
   CHECK("");
   FBiGeom_load(geom, filename, 0, &err, strlen(filename), 0);
   CHECK( "Failed to load input file: 'size.sat'" );

   // get tag handles
   iBase_TagHandle interval, size, firmness, id;
   FBiGeom_getTagHandle(geom, "MESH_INTERVAL", &interval, &err, strlen(
         "MESH_INTERVAL"));
   CHECK( "FBiGeom_getTagHandle(\"MESH_INTERVAL\")" );
   FBiGeom_getTagHandle(geom, "MESH_SIZE", &size, &err, strlen("MESH_SIZE"));
   CHECK( "FBiGeom_getTagHandle(\"MESH_SIZE\")" );
   FBiGeom_getTagHandle(geom, "SIZE_FIRMNESS", &firmness, &err, strlen(
         "SIZE_FIRMNESS"));
   CHECK( "FBiGeom_getTagHandle(\"SIZE_FIRMNESS\")" );
   FBiGeom_getTagHandle(geom, "GLOBAL_ID", &id, &err, strlen("GLOBAL_ID"));
   CHECK( "FBiGeom_getTagHandle(\"GLOBAL_ID\")" );

   // get entity lists
   std::vector<iBase_EntityHandle> verts, curves, surfs, vols;
   std::vector<int> vert_ids, curve_ids, surf_ids, vol_ids;
   err = get_entities(geom, iBase_VERTEX, verts, id, &vert_ids);
   CHECK("");
   err = get_entities(geom, iBase_EDGE, curves, id, &curve_ids);
   CHECK("");
   err = get_entities(geom, iBase_FACE, surfs, id, &surf_ids);
   CHECK("");
   err = get_entities(geom, iBase_REGION, vols, id, &vol_ids);
   CHECK("");

   // expect interval count to be the same as ID for every curve
   std::vector<int> intervals(curves.size());
   int *int_ptr = &intervals[0];
   junk1 = junk2 = curves.size();
   FBiGeom_getIntArrData(geom, &curves[0], curves.size(), interval, &int_ptr,
         &junk1, &junk2, &err);
   CHECK("Failed to get intervals for curves");
   if (intervals != curve_ids) {
      std::cout << "ERROR: Incorrect curve intervals for one or more curves."
            << std::endl;
      std::cout << "ID  Expected  Actual" << std::endl;
      for (unsigned i = 0; i < curves.size(); ++i)
         std::cout << std::setw(2) << curve_ids[i] << "  " << std::setw(8)
               << curve_ids[i] << "  " << std::setw(6) << intervals[i]
               << std::endl;
      result = false;
   }

   // expect size to be the same as ID for every surface
   std::vector<double> sizes(surfs.size());
   double* dbl_ptr = &sizes[0];
   junk1 = junk2 = surfs.size();
   FBiGeom_getDblArrData(geom, &surfs[0], surfs.size(), size, &dbl_ptr, &junk1,
         &junk2, &err);
   CHECK("Failed to get sizes for surfaces");
   bool all_correct = true;
   for (unsigned i = 0; i < surfs.size(); ++i)
      if (fabs(sizes[i] - (double) surf_ids[i]) > 1e-8)
         all_correct = false;
   if (!all_correct) {
      std::cout << "ERROR: Incorrect mesh size for one or more surfaces."
            << std::endl;
      std::cout << "ID  Expected  Actual  " << std::endl;
      for (unsigned i = 0; i < surfs.size(); ++i)
         std::cout << std::setw(2) << surf_ids[i] << "  " << std::setw(8)
               << (double) surf_ids[i] << "  " << std::setw(8) << sizes[i]
               << std::endl;
      result = false;
   }

   err = result ? iBase_SUCCESS : iBase_FAILURE;
   CHECK("Invalid size or interval data");

   // expect "HARD" firmness on all curves
   err = check_firmness(geom, curves, curve_ids, firmness, "HARD", "curves");
   CHECK("Invalid curve firmness");
   // expect "SOFT" firmness on all surfaces
   err = check_firmness(geom, surfs, surf_ids, firmness, "SOFT", "surfaces");
   CHECK("Invalid surface firmness");

   // expect no firmnes on other entities
   err = count_num_with_tag(geom, verts, firmness) ? iBase_FAILURE
         : iBase_SUCCESS;
   CHECK("Got firmness for vertex.");
   err = count_num_with_tag(geom, vols, firmness) ? iBase_FAILURE
         : iBase_SUCCESS;
   CHECK("Got firmness for volume.");

   // expect no interval tag on any entities except curves
   err = count_num_with_tag(geom, verts, interval) ? iBase_FAILURE
         : iBase_SUCCESS;
   CHECK("Got interval count for vertex.");
   err = count_num_with_tag(geom, vols, interval) ? iBase_FAILURE
         : iBase_SUCCESS;
   CHECK("Got interval count for volume.");

   // expect no size tag on any entities except surfaces
   // curves should have size of one of their parent surfaces
   err = count_num_with_tag(geom, verts, size) ? iBase_FAILURE : iBase_SUCCESS;
   CHECK("Got mesh size for vertex.");
   err = count_num_with_tag(geom, vols, size) ? iBase_FAILURE : iBase_SUCCESS;
   CHECK("Got mesh size for volume.");

   return true;
}

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bool shutdown_test2(FBiGeom_Instance geom, std::string &/*engine_opt*/) {
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   int err;

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   // test shutdown2
   FBiGeom_dtor2(geom, &err);
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   CHECK( "Interface destruction didn't work properly." );

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//   FBiGeom_newGeom(engine_opt.c_str(), &geom, &err, engine_opt.length());
//   CHECK( "Interface re-construction didn't work properly." );
//
//   FBiGeom_dtor(geom, &err);
//   CHECK( "2nd Interface destruction didn't work properly." );
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   return true;
}

bool save_entset_test(FBiGeom_Instance geom) {
   int err;

#ifdef FORCE_OCC
   std::string filename = "testout.brep";
#elif defined (HAVE_ACIS)
   std::string filename = "testout.sat";
#elif defined (HAVE_OCC)
   std::string filename = "testout.brep";
#else
   std::string filename = "testout.sat";
#endif

   // initialize number of ents and sets to compare with later
   int num_ents_bef, num_sets_bef;
   iBase_EntitySetHandle root;
   FBiGeom_getRootSet(geom, &root, &err);
   CHECK("Failed to get root set.");
   FBiGeom_getNumEntSets(geom, root, 1, &num_sets_bef, &err);
   CHECK("Failed to get number of ent sets.");
   FBiGeom_getNumOfType(geom, root, iBase_REGION, &num_ents_bef, &err);
   CHECK("Failed to get number of entities.");

   // create set, and entity to add to set
   iBase_EntityHandle cyl;
   FBiGeom_createCylinder(geom, 1.0, 0.25, 0.0, &cyl, &err);
   CHECK( "Problems creating cylinder for save entset test." );
   iBase_EntitySetHandle seth;
   FBiGeom_createEntSet(geom, true, &seth, &err);
   CHECK( "Problems creating entity set for save entset test." );

   // add the entity
   FBiGeom_addEntToSet(geom, cyl, seth, &err);
   CHECK( "Problems adding entity to set for save entset test." );

   // save/restore the model, and see if the entity is there
   FBiGeom_save(geom, filename.c_str(), NULL, &err, filename.length(), 0);
   CHECK( "Problems saving file for save entset test." );

   FBiGeom_destroyEntSet(geom, seth, &err);
   CHECK("Failed to destroy entity set.");
   FBiGeom_deleteEnt(geom, cyl, &err);
   CHECK("Failed to destroy entity.");

   // read the file back in
   FBiGeom_load(geom, filename.c_str(), NULL, &err, filename.length(), 0);
   CHECK( "Problems reading file for save entset test." );

   // check number of sets and entities
   int num_ents_aft, num_sets_aft;
   FBiGeom_getNumEntSets(geom, root, 1, &num_sets_aft, &err);
   CHECK("Failed to get number of ent sets.");
   FBiGeom_getNumOfType(geom, root, iBase_REGION, &num_ents_aft, &err);
   CHECK("Failed to get number of entities.");
   bool success = true;
   if (num_ents_aft != 2 * num_ents_bef + 1) {
      print_error("Failed to get the right number of entities.", iBase_FAILURE,
            geom, __FILE__, __LINE__);
      success = false;
   } else if (num_sets_aft != 2 * num_sets_bef + 1) {
      print_error("Failed to get the right number of entity sets.",
            iBase_FAILURE, geom, __FILE__, __LINE__);
      success = false;
   }

   // otherwise, we succeeded
   return success;
}