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// ----------------------------------------------------------------------------
// - Open3D: www.open3d.org -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.open3d.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
// @author Ignacio Vizzo [ivizzo@uni-bonn.de]
//
// Copyright (c) 2020 Ignacio Vizzo, Cyrill Stachniss, University of Bonn.
// ----------------------------------------------------------------------------
#include <Eigen/Core>
#include <cstdlib>
#include <memory>
#include <string>
#include "open3d/Open3D.h"
void PrintHelp() {
using namespace open3d;
PrintOpen3DVersion();
// clang-format off
utility::LogInfo("Usage:");
utility::LogInfo(" > ISSKeypoints [mesh|pointcloud] [filename]");
// clang-format on
utility::LogInfo("");
}
int main(int argc, char *argv[]) {
using namespace open3d;
utility::SetVerbosityLevel(utility::VerbosityLevel::Debug);
if (argc != 3 ||
utility::ProgramOptionExistsAny(argc, argv, {"-h", "--help"})) {
PrintHelp();
return 1;
}
const std::string option(argv[1]);
const std::string filename(argv[2]);
auto cloud = std::make_shared<geometry::PointCloud>();
auto mesh = std::make_shared<geometry::TriangleMesh>();
if (option == "mesh") {
if (!io::ReadTriangleMesh(filename, *mesh)) {
utility::LogWarning("Failed to read {}", filename);
return 1;
}
cloud->points_ = mesh->vertices_;
} else if (option == "pointcloud") {
if (!io::ReadPointCloud(filename, *cloud)) {
utility::LogWarning("Failed to read {}\n\n", filename);
return 1;
}
} else {
utility::LogError("option {} not supported\n", option);
}
// Compute the ISS Keypoints
auto iss_keypoints = std::make_shared<geometry::PointCloud>();
{
utility::ScopeTimer timer("ISS Keypoints estimation");
iss_keypoints = geometry::keypoint::ComputeISSKeypoints(*cloud);
utility::LogInfo("Detected {} keypoints",
iss_keypoints->points_.size());
}
// Visualize the results
cloud->PaintUniformColor(Eigen::Vector3d(0.5, 0.5, 0.5));
iss_keypoints->PaintUniformColor(Eigen::Vector3d(1.0, 0.75, 0.0));
if (option == "mesh") {
mesh->PaintUniformColor(Eigen::Vector3d(0.5, 0.5, 0.5));
mesh->ComputeVertexNormals();
mesh->ComputeTriangleNormals();
visualization::DrawGeometries({mesh, iss_keypoints}, "ISS", 1600, 900);
} else {
visualization::DrawGeometries({iss_keypoints}, "ISS", 1600, 900);
}
return 0;
}
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