Example #1
0
TEST (PCL, Octree_Test)
{

  unsigned int i, j;
  int data[256];

  // create octree instance
  OctreeBase<int> octreeA;
  OctreeBase<int> octreeB;

  // set octree depth
  octreeA.setTreeDepth (8);
  octreeB.setTreeDepth (8);

  struct MyVoxel
  {
    unsigned int x;unsigned int y;unsigned int z;
  };
  MyVoxel voxels[256];

  srand (time (NULL));

  // generate some voxel indices
  for (i = 0; i < 256; i++)
  {
    data[i] = i;

    voxels[i].x = i;
    voxels[i].y = 255 - i;
    voxels[i].z = i;

    // add data to leaf node voxel
    octreeA.add (voxels[i].x, voxels[i].y, voxels[i].z, data[i]);
  }

  int LeafNode;
  for (i = 0; i < 128; i++)
  {
    // retrieve data from leaf node voxel
    octreeA.get (voxels[i].x, voxels[i].y, voxels[i].z, LeafNode);
    // check if retrieved data is identical to data[]
    ASSERT_EQ (LeafNode, data[i]);
  }

  for (i=128; i<256; i++)
  {
    // check if leaf node exists in tree
    ASSERT_EQ ( octreeA.existLeaf(voxels[i].x,voxels[i].y,voxels[i].z) , true);

    // remove leaf node
    octreeA.removeLeaf(voxels[i].x,voxels[i].y,voxels[i].z);

    //  leaf node shouldn't exist in tree anymore
    ASSERT_EQ ( octreeA.existLeaf(voxels[i].x,voxels[i].y,voxels[i].z) , false);
  }

  // test serialization

  std::vector<char> treeBinaryA;
  std::vector<char> treeBinaryB;

  std::vector<int> leafVectorA;
  std::vector<int> leafVectorB;

  // serialize tree - generate binary octree description
  octreeA.serializeTree(treeBinaryA);

  // deserialize tree - rebuild octree based on binary octree description
  octreeB.deserializeTree(treeBinaryA);

  for (i=0; i<128; i++)
  {
    // check if leafs exist in both octrees
    ASSERT_EQ ( octreeA.existLeaf(voxels[i].x,voxels[i].y,voxels[i].z), true);
    ASSERT_EQ ( octreeB.existLeaf(voxels[i].x,voxels[i].y,voxels[i].z) , true);
  }

  for (i=128; i<256; i++)
  {
    // these leafs were not copies and should not exist
    ASSERT_EQ ( octreeB.existLeaf(voxels[i].x,voxels[i].y,voxels[i].z) , false);
  }

  // testing deleteTree();
  octreeB.deleteTree();

  // octreeB.getLeafCount() should be zero now;
  ASSERT_EQ (0,octreeB.getLeafCount());

  // .. and previous leafs deleted..
  for (i=0; i<128; i++)
  {
    ASSERT_EQ (octreeB.existLeaf(voxels[i].x,voxels[i].y,voxels[i].z) , false);
  }

  // test tree serialization
  octreeA.serializeTree(treeBinaryA, leafVectorA);

  // make sure, we retrieved all data objects
  ASSERT_EQ (leafVectorA.size(), octreeA.getLeafCount());

  // check if leaf data is found in octree input data
  bool bFound;
  for (i=0; i<128; i++)
  {
    int leafInt = leafVectorA.back();
    leafVectorA.pop_back();

    bFound = false;
    for (j=0; j<256; j++)
    if ( data[j]==leafInt )
    {
      bFound = true;
      break;
    }

    ASSERT_EQ (bFound, true);
  }

  // test tree serialization
  octreeA.serializeLeafs(leafVectorA);

  for (i=0; i<128; i++)
  {
    int leafInt = leafVectorA.back();
    leafVectorA.pop_back();

    bFound = false;
    for (j=0; j<256; j++)
    if ( data[j]==leafInt )
    {
      bFound = true;
      break;
    }

    ASSERT_EQ (bFound, true);
  }

  // test tree serialization with leaf data vectors
  octreeA.serializeTree(treeBinaryA, leafVectorA);
  octreeB.deserializeTree(treeBinaryA, leafVectorA);

  // test size and leaf count of reconstructed octree
  ASSERT_EQ (octreeA.getLeafCount(),octreeB.getLeafCount());
  ASSERT_EQ (128,octreeB.getLeafCount());

  octreeB.serializeTree(treeBinaryB, leafVectorB);

  // compare octree data content of octree A and octree B
  ASSERT_EQ (leafVectorB.size(), octreeB.getLeafCount());
  ASSERT_EQ (leafVectorA.size(), leafVectorB.size());

  for (i=0; i<leafVectorB.size(); i++)
  {
    ASSERT_EQ ( (leafVectorA[i] == leafVectorB[i]), true );
  }

}
Example #2
0
TEST (PCL, Octree_Test)
{

  unsigned int i, j;
  int data[256];

  // create octree instance
  OctreeBase<int> octreeA;
  OctreeBase<int> octreeB;

  // set octree depth
  octreeA.setTreeDepth (8);
  octreeB.setTreeDepth (8);

  struct MyVoxel
  {
    unsigned int x;
    unsigned int y;
    unsigned int z;
  };
  MyVoxel voxels[256];

  srand (static_cast<unsigned int> (time (NULL)));

  // generate some voxel indices
  for (i = 0; i < 256; i++)
  {
    data[i] = i;

    voxels[i].x = i;
    voxels[i].y = 255 - i;
    voxels[i].z = i;

    // add data to leaf node voxel
    int* voxel_container = octreeA.createLeaf(voxels[i].x, voxels[i].y, voxels[i].z);
    *voxel_container = data[i];
  }

  for (i = 0; i < 128; i++)
  {
    // retrieve data from leaf node voxel
    int* voxel_container = octreeA.createLeaf(voxels[i].x, voxels[i].y, voxels[i].z);
    // check if retrieved data is identical to data[]
    ASSERT_EQ (data[i], *voxel_container);
  }

  for (i = 128; i < 256; i++)
  {
    // check if leaf node exists in tree
    ASSERT_TRUE (octreeA.existLeaf (voxels[i].x, voxels[i].y, voxels[i].z));

    // remove leaf node
    octreeA.removeLeaf (voxels[i].x, voxels[i].y, voxels[i].z);

    //  leaf node shouldn't exist in tree anymore
    ASSERT_FALSE (octreeA.existLeaf (voxels[i].x, voxels[i].y, voxels[i].z));
  }

  // test serialization

  std::vector<char> treeBinaryA;
  std::vector<char> treeBinaryB;

  std::vector<int*> leafVectorA;
  std::vector<int*> leafVectorB;

  // serialize tree - generate binary octree description
  octreeA.serializeTree (treeBinaryA);

  // deserialize tree - rebuild octree based on binary octree description
  octreeB.deserializeTree (treeBinaryA);

  for (i = 0; i < 128; i++)
  {
    // check if leafs exist in both octrees
    ASSERT_TRUE (octreeA.existLeaf (voxels[i].x, voxels[i].y, voxels[i].z));
    ASSERT_TRUE (octreeB.existLeaf (voxels[i].x, voxels[i].y, voxels[i].z));
  }

  for (i = 128; i < 256; i++)
  {
    // these leafs were not copies and should not exist
    ASSERT_FALSE (octreeB.existLeaf (voxels[i].x, voxels[i].y, voxels[i].z));
  }

  // testing deleteTree();
  octreeB.deleteTree ();

  // octreeB.getLeafCount() should be zero now;
  ASSERT_EQ (0u, octreeB.getLeafCount ());

  // .. and previous leafs deleted..
  for (i = 0; i < 128; i++)
  {
    ASSERT_FALSE (octreeB.existLeaf (voxels[i].x, voxels[i].y, voxels[i].z));
  }

  // test tree serialization
  octreeA.serializeTree (treeBinaryA, leafVectorA);

  // make sure, we retrieved all data objects
  ASSERT_EQ (octreeA.getLeafCount (), leafVectorA.size ());

  // check if leaf data is found in octree input data
  bool bFound;
  for (i = 0; i < 128; i++)
  {
    int leafInt = *leafVectorA.back ();
    leafVectorA.pop_back ();

    bFound = false;
    for (j = 0; j < 256; j++)
      if (data[j] == leafInt)
      {
        bFound = true;
        break;
      }

    ASSERT_TRUE (bFound);
  }

  // test tree serialization
  octreeA.serializeLeafs (leafVectorA);

  for (i = 0; i < 128; i++)
  {
    int leafInt = *leafVectorA.back ();
    leafVectorA.pop_back ();

    bFound = false;
    for (j = 0; j < 256; j++)
      if (data[j] == leafInt)
      {
        bFound = true;
        break;
      }

    ASSERT_TRUE (bFound);
  }

  // test tree serialization with leaf data vectors
  octreeA.serializeTree (treeBinaryA, leafVectorA);
  octreeB.deserializeTree (treeBinaryA, leafVectorA);

  // test size and leaf count of reconstructed octree
  ASSERT_EQ (octreeA.getLeafCount (), octreeB.getLeafCount ());
  ASSERT_EQ (128u, octreeB.getLeafCount ());

  octreeB.serializeTree (treeBinaryB, leafVectorB);

  // compare octree data content of octree A and octree B
  ASSERT_EQ (leafVectorB.size (), octreeB.getLeafCount ());
  ASSERT_EQ (leafVectorA.size (), leafVectorB.size ());

  for (i = 0; i < leafVectorB.size (); i++)
  {
    ASSERT_EQ (*leafVectorA[i], *leafVectorB[i]);
  }

  //  test iterator

  OctreeBase<int>::Iterator a_it;
  OctreeBase<int>::Iterator a_it_end = octreeA.end();

  unsigned int node_count = 0;
  unsigned int branch_count = 0;
  unsigned int leaf_count = 0;

  // iterate over tree
  for (a_it=octreeA.begin(); a_it!=a_it_end; ++a_it)
  {
    // depth should always be less than tree depth
    unsigned int depth = a_it.getCurrentOctreeDepth ();
    ASSERT_LE (depth, octreeA.getTreeDepth ());

    // store node, branch and leaf count
    const OctreeNode* node = a_it.getCurrentOctreeNode ();
    if (node->getNodeType () == BRANCH_NODE)
    {
      branch_count++;
    }
    else if (node->getNodeType () == LEAF_NODE)
    {
      leaf_count++;
    }
    node_count++;
  }

  // compare node, branch and leaf count against actual tree values
  ASSERT_EQ (branch_count + leaf_count, node_count);
  ASSERT_EQ (octreeA.getLeafCount (), leaf_count);
}