opencv/modules/viz/test/test_viz3d.cpp

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#include "test_precomp.hpp"
#include <opencv2/viz.hpp>
#include <opencv2/core.hpp>
#include <opencv2/imgproc.hpp>

#include <fstream>
#include <string>

#include <opencv2/viz/types.hpp>
#include <opencv2/viz/mesh_load.hpp>


cv::Mat cvcloud_load()
{
    cv::Mat cloud(1, 20000, CV_32FC3);
        std::ifstream ifs("d:/cloud_dragon.ply");

    std::string str;
    for(size_t i = 0; i < 11; ++i)
        std::getline(ifs, str);

    cv::Point3f* data = cloud.ptr<cv::Point3f>();
    for(size_t i = 0; i < 20000; ++i)
        ifs >> data[i].x >> data[i].y >> data[i].z;

    return cloud;
}

TEST(Viz_viz3d, accuracy)
{
    temp_viz::Viz3d v("abc");
    //v.spin();

    v.setBackgroundColor();

    v.addCoordinateSystem(1.0, cv::Affine3f::Identity());

    cv::Mat cloud = cvcloud_load();

    cv::Mat colors(cloud.size(), CV_8UC3, cv::Scalar(0, 255, 0));
    
    float angle_x = 0.0f;
    float angle_y = 0.0f;
    float angle_z = 0.0f;
    float pos_x = 0.0f;
    float pos_y = 0.0f;
    float pos_z = 0.0f;
//     temp_viz::Mesh3d::Ptr mesh = temp_viz::mesh_load("d:/horse.ply");
//     v.addPolygonMesh(*mesh, "pq");

    int col_blue = 0;
    int col_green = 0;
    int col_red = 0;
    
    while(!v.wasStopped())
    {
        // Creating new point cloud with id cloud1
        cv::Affine3f cloudPosition(angle_x, angle_y, angle_z, cv::Vec3f(pos_x, pos_y, pos_z));
        v.showPointCloud("cloud1", cloud, temp_viz::Color(col_blue, col_green, col_red), cloudPosition);
        v.showLine("line1", cv::Point3f(0.0,0.0,0.0), cv::Point3f(pos_x, pos_y, pos_z) , temp_viz::Color(255-col_blue, 255-col_green, 255-col_red));

        angle_x += 0.1f;
        angle_y -= 0.1f;
        angle_z += 0.1f;
        pos_x = std::sin(angle_x);
        pos_y = std::sin(angle_x);
        pos_z = std::sin(angle_x);
        col_blue = int(angle_x * 10) % 256;
        col_green = int(angle_x * 20) % 256;
        col_red = int(angle_x * 30) % 256;

        v.spinOnce(1, true);
    }
   
//     cv::Mat normals(cloud.size(), CV_32FC3, cv::Scalar(0, 10, 0));
// 
//     v.addPointCloudNormals(cloud, normals, 100, 0.02, "n");
// 
// 
//     temp_viz::ModelCoefficients mc;
//     mc.values.resize(4);
//     mc.values[0] = mc.values[1] = mc.values[2] = mc.values[3] = 1;
//     v.addPlane(mc);
// 
// 
//     temp_viz::Mesh3d::Ptr mesh = temp_viz::mesh_load("horse.ply");
//     v.addPolygonMesh(*mesh, "pq");
// 
//     v.spinOnce(1000, true);
// 
//     v.removeCoordinateSystem();
// 
//     for(int i = 0; i < mesh->cloud.cols; ++i)
//         mesh->cloud.ptr<cv::Point3f>()[i] += cv::Point3f(1, 1, 1);
// 
//     v.updatePolygonMesh(*mesh, "pq");
// 
// 
//     for(int i = 0; i < mesh->cloud.cols; ++i)
//         mesh->cloud.ptr<cv::Point3f>()[i] -= cv::Point3f(2, 2, 2);
//     v.addPolylineFromPolygonMesh(*mesh);
// 
// 
//     v.addText("===Abd sadfljsadlk", 100, 100, cv::Scalar(255, 0, 0), 15);
//     for(int i = 0; i < cloud.cols; ++i)
// 	cloud.ptr<cv::Point3f>()[i].x *=2;
// 
//     colors.setTo(cv::Scalar(255, 0, 0));
// 
//     v.addSphere(cv::Point3f(0, 0, 0), 0.3, temp_viz::Color::blue());
// 
//     cv::Mat cvpoly(1, 5, CV_32FC3);
//     cv::Point3f* pdata = cvpoly.ptr<cv::Point3f>();
//     pdata[0] = cv::Point3f(0, 0, 0);
//     pdata[1] = cv::Point3f(0, 1, 1);
//     pdata[2] = cv::Point3f(3, 1, 2);
//     pdata[3] = cv::Point3f(0, 2, 4);
//     pdata[4] = cv::Point3f(7, 2, 3);
//     v.addPolygon(cvpoly, temp_viz::Color::white());
// 
//     // Updating cloud1
//     v.showPointCloud("cloud1", cloud, colors);
//     v.spin();
}