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42 
43 #include "test_precomp.hpp"
44 
45 using namespace cv;
46 using namespace cv::viz;
47 
TEST(Viz,show_cloud_bluberry)48 TEST(Viz, show_cloud_bluberry)
49 {
50     Mat dragon_cloud = readCloud(get_dragon_ply_file_path());
51 
52     Affine3d pose = Affine3d().rotate(Vec3d(0, 0.8, 0));
53 
54     Viz3d viz("show_cloud_bluberry");
55     viz.setBackgroundColor(Color::black());
56     viz.showWidget("coosys", WCoordinateSystem());
57     viz.showWidget("dragon", WCloud(dragon_cloud, Color::bluberry()), pose);
58 
59     viz.showWidget("text2d", WText("Bluberry cloud", Point(20, 20), 20, Color::green()));
60     viz.spin();
61 }
62 
TEST(Viz,show_cloud_random_color)63 TEST(Viz, show_cloud_random_color)
64 {
65     Mat dragon_cloud = readCloud(get_dragon_ply_file_path());
66 
67     Mat colors(dragon_cloud.size(), CV_8UC3);
68     theRNG().fill(colors, RNG::UNIFORM, 0, 255);
69 
70     Affine3d pose = Affine3d().rotate(Vec3d(0, 0.8, 0));
71 
72     Viz3d viz("show_cloud_random_color");
73     viz.setBackgroundMeshLab();
74     viz.showWidget("coosys", WCoordinateSystem());
75     viz.showWidget("dragon", WCloud(dragon_cloud, colors), pose);
76     viz.showWidget("text2d", WText("Random color cloud", Point(20, 20), 20, Color::green()));
77     viz.spin();
78 }
79 
TEST(Viz,show_cloud_masked)80 TEST(Viz, show_cloud_masked)
81 {
82     Mat dragon_cloud = readCloud(get_dragon_ply_file_path());
83 
84     Vec3f qnan = Vec3f::all(std::numeric_limits<float>::quiet_NaN());
85     for(int i = 0; i < (int)dragon_cloud.total(); ++i)
86         if (i % 15 != 0)
87             dragon_cloud.at<Vec3f>(i) = qnan;
88 
89     Affine3d pose = Affine3d().rotate(Vec3d(0, 0.8, 0));
90 
91     Viz3d viz("show_cloud_masked");
92     viz.showWidget("coosys", WCoordinateSystem());
93     viz.showWidget("dragon", WCloud(dragon_cloud), pose);
94     viz.showWidget("text2d", WText("Nan masked cloud", Point(20, 20), 20, Color::green()));
95     viz.spin();
96 }
97 
TEST(Viz,show_cloud_collection)98 TEST(Viz, show_cloud_collection)
99 {
100     Mat cloud = readCloud(get_dragon_ply_file_path());
101 
102     WCloudCollection ccol;
103     ccol.addCloud(cloud, Color::white(), Affine3d().translate(Vec3d(0, 0, 0)).rotate(Vec3d(CV_PI/2, 0, 0)));
104     ccol.addCloud(cloud, Color::blue(),  Affine3d().translate(Vec3d(1, 0, 0)));
105     ccol.addCloud(cloud, Color::red(),   Affine3d().translate(Vec3d(2, 0, 0)));
106     ccol.finalize();
107 
108     Viz3d viz("show_cloud_collection");
109     viz.setBackgroundColor(Color::mlab());
110     viz.showWidget("coosys", WCoordinateSystem());
111     viz.showWidget("ccol", ccol);
112     viz.showWidget("text2d", WText("Cloud collection", Point(20, 20), 20, Color::green()));
113     viz.spin();
114 }
115 
TEST(Viz,show_painted_clouds)116 TEST(Viz, show_painted_clouds)
117 {
118     Mat cloud = readCloud(get_dragon_ply_file_path());
119 
120     Viz3d viz("show_painted_clouds");
121     viz.setBackgroundMeshLab();
122     viz.showWidget("coosys", WCoordinateSystem());
123     viz.showWidget("cloud1", WPaintedCloud(cloud), Affine3d(Vec3d(0.0, -CV_PI/2, 0.0), Vec3d(-1.5, 0.0, 0.0)));
124     viz.showWidget("cloud2", WPaintedCloud(cloud, Vec3d(0.0, -0.75, -1.0), Vec3d(0.0, 0.75, 0.0)), Affine3d(Vec3d(0.0, CV_PI/2, 0.0), Vec3d(1.5, 0.0, 0.0)));
125     viz.showWidget("cloud3", WPaintedCloud(cloud, Vec3d(0.0, 0.0, -1.0), Vec3d(0.0, 0.0, 1.0), Color::blue(), Color::red()));
126     viz.showWidget("arrow", WArrow(Vec3d(0.0, 1.0, -1.0), Vec3d(0.0, 1.0, 1.0), 0.009, Color::raspberry()));
127     viz.showWidget("text2d", WText("Painted clouds", Point(20, 20), 20, Color::green()));
128     viz.spin();
129 }
130 
TEST(Viz,show_mesh)131 TEST(Viz, show_mesh)
132 {
133     Mesh mesh = Mesh::load(get_dragon_ply_file_path());
134 
135     Affine3d pose = Affine3d().rotate(Vec3d(0, 0.8, 0));
136 
137     Viz3d viz("show_mesh");
138     viz.showWidget("coosys", WCoordinateSystem());
139     viz.showWidget("mesh", WMesh(mesh), pose);
140     viz.showWidget("text2d", WText("Just mesh", Point(20, 20), 20, Color::green()));
141     viz.spin();
142 }
143 
TEST(Viz,show_mesh_random_colors)144 TEST(Viz, show_mesh_random_colors)
145 {
146     Mesh mesh = Mesh::load(get_dragon_ply_file_path());
147     theRNG().fill(mesh.colors, RNG::UNIFORM, 0, 255);
148 
149     Affine3d pose = Affine3d().rotate(Vec3d(0, 0.8, 0));
150 
151     Viz3d viz("show_mesh_random_color");
152     viz.showWidget("coosys", WCoordinateSystem());
153     viz.showWidget("mesh", WMesh(mesh), pose);
154     viz.setRenderingProperty("mesh", SHADING, SHADING_PHONG);
155     viz.showWidget("text2d", WText("Random color mesh", Point(20, 20), 20, Color::green()));
156     viz.spin();
157 }
158 
TEST(Viz,show_widget_merger)159 TEST(Viz, show_widget_merger)
160 {
161     WWidgetMerger merger;
162     merger.addWidget(WCube(Vec3d::all(0.0), Vec3d::all(1.0), true, Color::gold()));
163 
164     RNG& rng = theRNG();
165     for(int i = 0; i < 77; ++i)
166     {
167         Vec3b c;
168         rng.fill(c, RNG::NORMAL, Scalar::all(128), Scalar::all(48), true);
169         merger.addWidget(WSphere(Vec3d(c)*(1.0/255.0), 7.0/255.0, 10, Color(c[2], c[1], c[0])));
170     }
171     merger.finalize();
172 
173     Viz3d viz("show_mesh_random_color");
174     viz.showWidget("coo", WCoordinateSystem());
175     viz.showWidget("merger", merger);
176     viz.showWidget("text2d", WText("Widget merger", Point(20, 20), 20, Color::green()));
177     viz.spin();
178 }
179 
TEST(Viz,show_textured_mesh)180 TEST(Viz, show_textured_mesh)
181 {
182     Mat lena = imread(Path::combine(cvtest::TS::ptr()->get_data_path(), "lena.png"));
183 
184     std::vector<Vec3d> points;
185     std::vector<Vec2d> tcoords;
186     std::vector<int> polygons;
187     for(size_t i = 0; i < 64; ++i)
188     {
189         double angle = CV_PI/2 * i/64.0;
190         points.push_back(Vec3d(0.00, cos(angle), sin(angle))*0.75);
191         points.push_back(Vec3d(1.57, cos(angle), sin(angle))*0.75);
192         tcoords.push_back(Vec2d(0.0, i/64.0));
193         tcoords.push_back(Vec2d(1.0, i/64.0));
194     }
195 
196     for(int i = 0; i < (int)points.size()/2-1; ++i)
197     {
198         int polys[] = {3, 2*i, 2*i+1, 2*i+2, 3, 2*i+1, 2*i+2, 2*i+3};
199         polygons.insert(polygons.end(), polys, polys + sizeof(polys)/sizeof(polys[0]));
200     }
201 
202     cv::viz::Mesh mesh;
203     mesh.cloud = Mat(points, true).reshape(3, 1);
204     mesh.tcoords = Mat(tcoords, true).reshape(2, 1);
205     mesh.polygons = Mat(polygons, true).reshape(1, 1);
206     mesh.texture = lena;
207 
208     Viz3d viz("show_textured_mesh");
209     viz.setBackgroundMeshLab();
210     viz.showWidget("coosys", WCoordinateSystem());
211     viz.showWidget("mesh", WMesh(mesh));
212     viz.setRenderingProperty("mesh", SHADING, SHADING_PHONG);
213     viz.showWidget("text2d", WText("Textured mesh", Point(20, 20), 20, Color::green()));
214     viz.spin();
215 }
216 
TEST(Viz,show_polyline)217 TEST(Viz, show_polyline)
218 {
219     const Color palette[] = { Color::red(), Color::green(), Color::blue(), Color::gold(), Color::raspberry(), Color::bluberry(), Color::lime() };
220     size_t palette_size = sizeof(palette)/sizeof(palette[0]);
221 
222     Mat polyline(1, 32, CV_64FC3), colors(1, 32, CV_8UC3);
223     for(int i = 0; i < (int)polyline.total(); ++i)
224     {
225         polyline.at<Vec3d>(i) = Vec3d(i/16.0, cos(i * CV_PI/6), sin(i * CV_PI/6));
226         colors.at<Vec3b>(i) = palette[i & palette_size];
227     }
228 
229     Viz3d viz("show_polyline");
230     viz.showWidget("polyline", WPolyLine(polyline, colors));
231     viz.showWidget("coosys", WCoordinateSystem());
232     viz.showWidget("text2d", WText("Polyline", Point(20, 20), 20, Color::green()));
233     viz.spin();
234 }
235 
TEST(Viz,show_sampled_normals)236 TEST(Viz, show_sampled_normals)
237 {
238     Mesh mesh = Mesh::load(get_dragon_ply_file_path());
239     computeNormals(mesh, mesh.normals);
240 
241     Affine3d pose = Affine3d().rotate(Vec3d(0, 0.8, 0));
242 
243     Viz3d viz("show_sampled_normals");
244     viz.showWidget("mesh", WMesh(mesh), pose);
245     viz.showWidget("normals", WCloudNormals(mesh.cloud, mesh.normals, 30, 0.1f, Color::green()), pose);
246     viz.setRenderingProperty("normals", LINE_WIDTH, 2.0);
247     viz.showWidget("text2d", WText("Cloud or mesh normals", Point(20, 20), 20, Color::green()));
248     viz.spin();
249 }
250 
TEST(Viz,show_cloud_shaded_by_normals)251 TEST(Viz, show_cloud_shaded_by_normals)
252 {
253     Mesh mesh = Mesh::load(get_dragon_ply_file_path());
254     computeNormals(mesh, mesh.normals);
255 
256     Affine3d pose = Affine3d().rotate(Vec3d(0, 0.8, 0));
257 
258     WCloud cloud(mesh.cloud, Color::white(), mesh.normals);
259     cloud.setRenderingProperty(SHADING, SHADING_GOURAUD);
260 
261     Viz3d viz("show_cloud_shaded_by_normals");
262     viz.showWidget("cloud", cloud, pose);
263     viz.showWidget("text2d", WText("Cloud shaded by normals", Point(20, 20), 20, Color::green()));
264     viz.spin();
265 }
266 
TEST(Viz,show_trajectories)267 TEST(Viz, show_trajectories)
268 {
269     std::vector<Affine3d> path = generate_test_trajectory<double>(), sub0, sub1, sub2, sub3, sub4, sub5;
270     int size =(int)path.size();
271 
272     Mat(path).rowRange(0, size/10+1).copyTo(sub0);
273     Mat(path).rowRange(size/10, size/5+1).copyTo(sub1);
274     Mat(path).rowRange(size/5, 11*size/12).copyTo(sub2);
275     Mat(path).rowRange(11*size/12, size).copyTo(sub3);
276     Mat(path).rowRange(3*size/4, 33*size/40).copyTo(sub4);
277     Mat(path).rowRange(33*size/40, 9*size/10).copyTo(sub5);
278     Matx33d K(1024.0, 0.0, 320.0, 0.0, 1024.0, 240.0, 0.0, 0.0, 1.0);
279 
280     Viz3d viz("show_trajectories");
281     viz.showWidget("coos", WCoordinateSystem());
282     viz.showWidget("sub0", WTrajectorySpheres(sub0, 0.25, 0.07));
283     viz.showWidget("sub1", WTrajectory(sub1, WTrajectory::PATH, 0.2, Color::brown()));
284     viz.showWidget("sub2", WTrajectory(sub2, WTrajectory::FRAMES, 0.2));
285     viz.showWidget("sub3", WTrajectory(sub3, WTrajectory::BOTH, 0.2, Color::green()));
286     viz.showWidget("sub4", WTrajectoryFrustums(sub4, K, 0.3, Color::yellow()));
287     viz.showWidget("sub5", WTrajectoryFrustums(sub5, Vec2d(0.78, 0.78), 0.15));
288     viz.showWidget("text2d", WText("Different kinds of supported trajectories", Point(20, 20), 20, Color::green()));
289 
290     int i = 0;
291     while(!viz.wasStopped())
292     {
293         double a = --i % 360;
294         Vec3d pose(sin(a * CV_PI/180), 0.7, cos(a * CV_PI/180));
295         viz.setViewerPose(makeCameraPose(pose * 7.5, Vec3d(0.0, 0.5, 0.0), Vec3d(0.0, 0.1, 0.0)));
296         viz.spinOnce(20, true);
297     }
298     viz.resetCamera();
299     viz.spin();
300 }
301 
TEST(Viz,show_trajectory_reposition)302 TEST(Viz, show_trajectory_reposition)
303 {
304     std::vector<Affine3f> path = generate_test_trajectory<float>();
305 
306     Viz3d viz("show_trajectory_reposition_to_origin");
307     viz.showWidget("coos", WCoordinateSystem());
308     viz.showWidget("sub3", WTrajectory(Mat(path).rowRange(0, (int)path.size()/3), WTrajectory::BOTH, 0.2, Color::brown()), path.front().inv());
309     viz.showWidget("text2d", WText("Trajectory resposition to origin", Point(20, 20), 20, Color::green()));
310     viz.spin();
311 }
312 
TEST(Viz,show_camera_positions)313 TEST(Viz, show_camera_positions)
314 {
315     Matx33d K(1024.0, 0.0, 320.0, 0.0, 1024.0, 240.0, 0.0, 0.0, 1.0);
316     Mat lena = imread(Path::combine(cvtest::TS::ptr()->get_data_path(), "lena.png"));
317     Mat gray = make_gray(lena);
318 
319     Affine3d poses[2];
320     for(int i = 0; i < 2; ++i)
321     {
322         Vec3d pose = 5 * Vec3d(sin(3.14 + 2.7 + i*60 * CV_PI/180), 0.4 - i*0.3, cos(3.14 + 2.7 + i*60 * CV_PI/180));
323         poses[i] = makeCameraPose(pose, Vec3d(0.0, 0.0, 0.0), Vec3d(0.0, -0.1, 0.0));
324     }
325 
326     Viz3d viz("show_camera_positions");
327     viz.showWidget("sphe", WSphere(Point3d(0,0,0), 1.0, 10, Color::orange_red()));
328     viz.showWidget("coos", WCoordinateSystem(1.5));
329     viz.showWidget("pos1", WCameraPosition(0.75), poses[0]);
330     viz.showWidget("pos2", WCameraPosition(Vec2d(0.78, 0.78), lena, 2.2, Color::green()), poses[0]);
331     viz.showWidget("pos3", WCameraPosition(0.75), poses[1]);
332     viz.showWidget("pos4", WCameraPosition(K, gray, 3, Color::indigo()), poses[1]);
333     viz.showWidget("text2d", WText("Camera positions with images", Point(20, 20), 20, Color::green()));
334     viz.spin();
335 }
336 
TEST(Viz,show_overlay_image)337 TEST(Viz, show_overlay_image)
338 {
339     Mat lena = imread(Path::combine(cvtest::TS::ptr()->get_data_path(), "lena.png"));
340     Mat gray = make_gray(lena);
341 
342     Size2d half_lsize = Size2d(lena.size()) * 0.5;
343 
344     Viz3d viz("show_overlay_image");
345     viz.setBackgroundMeshLab();
346     Size vsz = viz.getWindowSize();
347 
348     viz.showWidget("coos", WCoordinateSystem());
349     viz.showWidget("cube", WCube());
350     viz.showWidget("img1", WImageOverlay(lena, Rect(Point(10, 10), half_lsize)));
351     viz.showWidget("img2", WImageOverlay(gray, Rect(Point(vsz.width-10-lena.cols/2, 10), half_lsize)));
352     viz.showWidget("img3", WImageOverlay(gray, Rect(Point(10, vsz.height-10-lena.rows/2), half_lsize)));
353     viz.showWidget("img5", WImageOverlay(lena, Rect(Point(vsz.width-10-lena.cols/2, vsz.height-10-lena.rows/2), half_lsize)));
354     viz.showWidget("text2d", WText("Overlay images", Point(20, 20), 20, Color::green()));
355 
356     int i = 0;
357     while(!viz.wasStopped())
358     {
359         double a = ++i % 360;
360         Vec3d pose(sin(a * CV_PI/180), 0.7, cos(a * CV_PI/180));
361         viz.setViewerPose(makeCameraPose(pose * 3, Vec3d(0.0, 0.5, 0.0), Vec3d(0.0, 0.1, 0.0)));
362         viz.getWidget("img1").cast<WImageOverlay>().setImage(lena * pow(sin(i*10*CV_PI/180) * 0.5 + 0.5, 1.0));
363         viz.spinOnce(1, true);
364     }
365     viz.showWidget("text2d", WText("Overlay images (stopped)", Point(20, 20), 20, Color::green()));
366     viz.spin();
367 }
368 
369 
TEST(Viz,show_image_method)370 TEST(Viz, show_image_method)
371 {
372     Mat lena = imread(Path::combine(cvtest::TS::ptr()->get_data_path(), "lena.png"));
373 
374     Viz3d viz("show_image_method");
375     viz.showImage(lena);
376     viz.spinOnce(1500, true);
377     viz.showImage(lena, lena.size());
378     viz.spinOnce(1500, true);
379 
380     cv::viz::imshow("show_image_method", make_gray(lena)).spin();
381 }
382 
TEST(Viz,show_image_3d)383 TEST(Viz, show_image_3d)
384 {
385     Mat lena = imread(Path::combine(cvtest::TS::ptr()->get_data_path(), "lena.png"));
386     Mat gray = make_gray(lena);
387 
388     Viz3d viz("show_image_3d");
389     viz.setBackgroundMeshLab();
390     viz.showWidget("coos", WCoordinateSystem());
391     viz.showWidget("cube", WCube());
392     viz.showWidget("arr0", WArrow(Vec3d(0.5, 0.0, 0.0), Vec3d(1.5, 0.0, 0.0), 0.009, Color::raspberry()));
393     viz.showWidget("img0", WImage3D(lena, Size2d(1.0, 1.0)), Affine3d(Vec3d(0.0, CV_PI/2, 0.0), Vec3d(.5, 0.0, 0.0)));
394     viz.showWidget("arr1", WArrow(Vec3d(-0.5, -0.5, 0.0), Vec3d(0.2, 0.2, 0.0), 0.009, Color::raspberry()));
395     viz.showWidget("img1", WImage3D(gray, Size2d(1.0, 1.0), Vec3d(-0.5, -0.5, 0.0), Vec3d(1.0, 1.0, 0.0), Vec3d(0.0, 1.0, 0.0)));
396 
397     viz.showWidget("arr3", WArrow(Vec3d::all(-0.5), Vec3d::all(0.5), 0.009, Color::raspberry()));
398 
399     viz.showWidget("text2d", WText("Images in 3D", Point(20, 20), 20, Color::green()));
400 
401     int i = 0;
402     while(!viz.wasStopped())
403     {
404         viz.getWidget("img0").cast<WImage3D>().setImage(lena * pow(sin(i++*7.5*CV_PI/180) * 0.5 + 0.5, 1.0));
405         viz.spinOnce(1, true);
406     }
407     viz.showWidget("text2d", WText("Images in 3D (stopped)", Point(20, 20), 20, Color::green()));
408     viz.spin();
409 }
410 
TEST(Viz,show_simple_widgets)411 TEST(Viz, show_simple_widgets)
412 {
413     Viz3d viz("show_simple_widgets");
414     viz.setBackgroundMeshLab();
415 
416     viz.showWidget("coos", WCoordinateSystem());
417     viz.showWidget("cube", WCube());
418     viz.showWidget("cub0", WCube(Vec3d::all(-1.0), Vec3d::all(-0.5), false, Color::indigo()));
419     viz.showWidget("arro", WArrow(Vec3d::all(-0.5), Vec3d::all(0.5), 0.009, Color::raspberry()));
420     viz.showWidget("cir1", WCircle(0.5, 0.01, Color::bluberry()));
421     viz.showWidget("cir2", WCircle(0.5, Point3d(0.5, 0.0, 0.0), Vec3d(1.0, 0.0, 0.0), 0.01, Color::apricot()));
422 
423     viz.showWidget("cyl0", WCylinder(Vec3d(-0.5, 0.5, -0.5), Vec3d(0.5, 0.5, -0.5), 0.125, 30, Color::brown()));
424     viz.showWidget("con0", WCone(0.25, 0.125, 6, Color::azure()));
425     viz.showWidget("con1", WCone(0.125, Point3d(0.5, -0.5, 0.5), Point3d(0.5, -1.0, 0.5), 6, Color::turquoise()));
426 
427     viz.showWidget("text2d", WText("Different simple widgets", Point(20, 20), 20, Color::green()));
428     viz.showWidget("text3d", WText3D("Simple 3D text", Point3d( 0.5,  0.5, 0.5), 0.125, false, Color::green()));
429 
430     viz.showWidget("plane1", WPlane(Size2d(0.25, 0.75)));
431     viz.showWidget("plane2", WPlane(Vec3d(0.5, -0.5, -0.5), Vec3d(0.0, 1.0, 1.0), Vec3d(1.0, 1.0, 0.0), Size2d(1.0, 0.5), Color::gold()));
432 
433     viz.showWidget("grid1", WGrid(Vec2i(7,7), Vec2d::all(0.75), Color::gray()), Affine3d().translate(Vec3d(0.0, 0.0, -1.0)));
434 
435     viz.spin();
436     viz.getWidget("text2d").cast<WText>().setText("Different simple widgets (updated)");
437     viz.getWidget("text3d").cast<WText3D>().setText("Updated text 3D");
438     viz.spin();
439 }
440 
TEST(Viz,show_follower)441 TEST(Viz, show_follower)
442 {
443     Viz3d viz("show_follower");
444 
445     viz.showWidget("coos", WCoordinateSystem());
446     viz.showWidget("cube", WCube());
447     viz.showWidget("t3d_2", WText3D("Simple 3D follower", Point3d(-0.5, -0.5, 0.5), 0.125, true,  Color::green()));
448     viz.showWidget("text2d", WText("Follower: text always facing camera", Point(20, 20), 20, Color::green()));
449     viz.setBackgroundMeshLab();
450     viz.spin();
451     viz.getWidget("t3d_2").cast<WText3D>().setText("Updated follower 3D");
452     viz.spin();
453 }
454