[−][src]Module opencv::viz
3D Visualizer
This section describes 3D visualization window as well as classes and methods that are used to interact with it.
3D visualization window (see Viz3d) is used to display widgets (see Widget), and it provides several methods to interact with scene and widgets.
Widget
In this section, the widget framework is explained. Widgets represent 2D or 3D objects, varying from simple ones such as lines to complex ones such as point clouds and meshes.
Widgets are implicitly shared. Therefore, one can add a widget to the scene, and modify the widget without re-adding the widget.
// Create a cloud widget viz::WCloud cw(cloud, viz::Color::red()); // Display it in a window myWindow.showWidget("CloudWidget1", cw); // Modify it, and it will be modified in the window. cw.setColor(viz::Color::yellow());
Structs
| Camera | This class wraps intrinsic parameters of a camera. |
| Color | This class represents color in BGR order. |
| KeyboardEvent | This class represents a keyboard event. |
| Mesh | This class wraps mesh attributes, and it can load a mesh from a ply file. : |
| MouseEvent | This class represents a mouse event. |
| Viz3d | The Viz3d class represents a 3D visualizer window. This class is implicitly shared. |
| WArrow | This 3D Widget defines an arrow. |
| WCameraPosition | This 3D Widget represents camera position in a scene by its axes or viewing frustum. : |
| WCircle | This 3D Widget defines a circle. |
| WCloud | This 3D Widget defines a point cloud. : |
| WCloudCollection | This 3D Widget defines a collection of clouds. : |
| WCloudNormals | This 3D Widget represents normals of a point cloud. : |
| WCone | This 3D Widget defines a cone. : |
| WCoordinateSystem | This 3D Widget represents a coordinate system. : |
| WCube | This 3D Widget defines a cube. |
| WCylinder | This 3D Widget defines a cylinder. : |
| WGrid | This 3D Widget defines a grid. : |
| WImage3D | This 3D Widget represents an image in 3D space. : |
| WImageOverlay | This 2D Widget represents an image overlay. : |
| WLine | This 3D Widget defines a finite line. |
| WMesh | Constructs a WMesh. |
| WPaintedCloud | |
| WPlane | This 3D Widget defines a finite plane. |
| WPolyLine | This 3D Widget defines a poly line. : |
| WSphere | This 3D Widget defines a sphere. : |
| WText | This 2D Widget represents text overlay. |
| WText3D | This 3D Widget represents 3D text. The text always faces the camera. |
| WTrajectory | This 3D Widget represents a trajectory. : |
| WTrajectoryFrustums | This 3D Widget represents a trajectory. : |
| WTrajectorySpheres | This 3D Widget represents a trajectory using spheres and lines |
| WWidgetMerger | This class allows to merge several widgets to single one. |
| Widget | Base class of all widgets. Widget is implicitly shared. |
| Widget2D | Base class of all 2D widgets. |
| Widget3D | Base class of all 3D widgets. |
Constants
Traits
| Widget2DTrait | Base class of all 2D widgets. |
| Widget3DTrait | Base class of all 3D widgets. |
| WidgetTrait | Base class of all widgets. Widget is implicitly shared. |
Functions
| compute_normals | Computing normals for mesh |
| get_window_by_name | Retrieves a window by its name. |
| imshow | Displays image in specified window |
| is_nan | Checks float/double value for nan. |
| is_nan_1 | Checks float/double value for nan. |
| read_cloud | Parameters |
| read_mesh | |
| read_trajectory | takes vector<Affine3 |
| unregister_all_windows | Unregisters all Viz windows from internal database. After it 'getWindowByName()' will create new windows instead of getting existing from the database. |
| vec3b | |
| write_cloud | Parameters |
| write_trajectory | takes vector<Affine3 |
Type Definitions
| KeyboardCallback | |
| MouseCallback |