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// ----------------------------------------------------------------------------
// - Open3D: www.open3d.org -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.open3d.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
#include "open3d/geometry/VoxelGrid.h"
#include "open3d/geometry/LineSet.h"
#include "open3d/geometry/TriangleMesh.h"
#include "open3d/visualization/utility/DrawGeometry.h"
#include "tests/Tests.h"
namespace open3d {
namespace tests {
TEST(VoxelGrid, Bounds) {
auto voxel_grid = std::make_shared<geometry::VoxelGrid>();
voxel_grid->origin_ = Eigen::Vector3d(0, 0, 0);
voxel_grid->voxel_size_ = 5;
voxel_grid->AddVoxel(geometry::Voxel(Eigen::Vector3i(1, 0, 0)));
voxel_grid->AddVoxel(geometry::Voxel(Eigen::Vector3i(0, 2, 0)));
voxel_grid->AddVoxel(geometry::Voxel(Eigen::Vector3i(0, 0, 3)));
ExpectEQ(voxel_grid->GetMinBound(), Eigen::Vector3d(0, 0, 0));
ExpectEQ(voxel_grid->GetMaxBound(), Eigen::Vector3d(10, 15, 20));
}
TEST(VoxelGrid, GetVoxel) {
auto voxel_grid = std::make_shared<geometry::VoxelGrid>();
voxel_grid->origin_ = Eigen::Vector3d(0, 0, 0);
voxel_grid->voxel_size_ = 5;
ExpectEQ(voxel_grid->GetVoxel(Eigen::Vector3d(0, 0, 0)),
Eigen::Vector3i(0, 0, 0));
ExpectEQ(voxel_grid->GetVoxel(Eigen::Vector3d(0, 1, 0)),
Eigen::Vector3i(0, 0, 0));
// Test near boundary voxel_size_ == 5
ExpectEQ(voxel_grid->GetVoxel(Eigen::Vector3d(0, 4.9, 0)),
Eigen::Vector3i(0, 0, 0));
ExpectEQ(voxel_grid->GetVoxel(Eigen::Vector3d(0, 5, 0)),
Eigen::Vector3i(0, 1, 0));
ExpectEQ(voxel_grid->GetVoxel(Eigen::Vector3d(0, 5.1, 0)),
Eigen::Vector3i(0, 1, 0));
}
TEST(VoxelGrid, Visualization) {
auto voxel_grid = std::make_shared<geometry::VoxelGrid>();
voxel_grid->origin_ = Eigen::Vector3d(0, 0, 0);
voxel_grid->voxel_size_ = 5;
voxel_grid->AddVoxel(geometry::Voxel(Eigen::Vector3i(0, 0, 0),
Eigen::Vector3d(0.9, 0, 0)));
voxel_grid->AddVoxel(geometry::Voxel(Eigen::Vector3i(0, 1, 0),
Eigen::Vector3d(0.9, 0.9, 0)));
// Uncomment the line below for visualization test
// visualization::DrawGeometries({voxel_grid});
}
} // namespace tests
} // namespace open3d
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