Widget

Classes
class	cv::viz::WArrow
	This 3D Widget defines an arrow. More...
class	cv::viz::WCameraPosition
	This 3D Widget represents camera position in a scene by its axes or viewing frustum. : More...
class	cv::viz::WCircle
	This 3D Widget defines a circle. More...
class	cv::viz::WCloud
	This 3D Widget defines a point cloud. : More...
class	cv::viz::WCloudCollection
	This 3D Widget defines a collection of clouds. : More...
class	cv::viz::WCloudNormals
	This 3D Widget represents normals of a point cloud. : More...
class	cv::viz::WCone
	This 3D Widget defines a cone. : More...
class	cv::viz::WCoordinateSystem
	This 3D Widget represents a coordinate system. : More...
class	cv::viz::WCube
	This 3D Widget defines a cube. More...
class	cv::viz::WCylinder
	This 3D Widget defines a cylinder. : More...
class	cv::viz::WGrid
	This 3D Widget defines a grid. : More...
class	cv::viz::Widget
	Base class of all widgets. Widget is implicitly shared. More...
class	cv::viz::Widget2D
	Base class of all 2D widgets. More...
class	cv::viz::Widget3D
	Base class of all 3D widgets. More...
struct	cv::viz::WidgetAccessor
	This class is for users who want to develop their own widgets using VTK library API. : More...
class	cv::viz::WImage3D
	This 3D Widget represents an image in 3D space. : More...
class	cv::viz::WImageOverlay
	This 2D Widget represents an image overlay. : More...
class	cv::viz::WLine
	This 3D Widget defines a finite line. More...
class	cv::viz::WMesh
	Constructs a WMesh. More...
class	cv::viz::WPaintedCloud
class	cv::viz::WPlane
	This 3D Widget defines a finite plane. More...
class	cv::viz::WPolyLine
	This 3D Widget defines a poly line. : More...
class	cv::viz::WSphere
	This 3D Widget defines a sphere. : More...
class	cv::viz::WText
	This 2D Widget represents text overlay. More...
class	cv::viz::WText3D
	This 3D Widget represents 3D text. The text always faces the camera. More...
class	cv::viz::WTrajectory
	This 3D Widget represents a trajectory. : More...
class	cv::viz::WTrajectoryFrustums
	This 3D Widget represents a trajectory. : More...
class	cv::viz::WTrajectorySpheres
	This 3D Widget represents a trajectory using spheres and lines. More...
class	cv::viz::WWidgetMerger
	This class allows to merge several widgets to single one. More...

Enumerations
enum	cv::viz::RenderingProperties {   cv::viz::POINT_SIZE,   cv::viz::OPACITY,   cv::viz::LINE_WIDTH,   cv::viz::FONT_SIZE,   cv::viz::REPRESENTATION,   cv::viz::IMMEDIATE_RENDERING,   cv::viz::SHADING,   cv::viz::AMBIENT,   cv::viz::LIGHTING }
enum	cv::viz::RepresentationValues {   cv::viz::REPRESENTATION_POINTS,   cv::viz::REPRESENTATION_WIREFRAME,   cv::viz::REPRESENTATION_SURFACE }
enum	cv::viz::ShadingValues {   cv::viz::SHADING_FLAT,   cv::viz::SHADING_GOURAUD,   cv::viz::SHADING_PHONG }

Functions
template<typename _W >
_W	cv::viz::Widget::cast () const
	Casts a widget to another.

Detailed Description

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());

Enumeration Type Documentation

enum cv::viz::RenderingProperties

Enumerator
POINT_SIZE
OPACITY
LINE_WIDTH
FONT_SIZE
REPRESENTATION
IMMEDIATE_RENDERING
SHADING
AMBIENT
LIGHTING

enum cv::viz::RepresentationValues

Enumerator
REPRESENTATION_POINTS
REPRESENTATION_WIREFRAME
REPRESENTATION_SURFACE

enum cv::viz::ShadingValues

Enumerator
SHADING_FLAT
SHADING_GOURAUD
SHADING_PHONG

Function Documentation

WWidgetMerger cv::viz::Widget::cast< WWidgetMerger >

(

)

const

Casts a widget to another.

// Create a sphere widget
viz::WSphere sw(Point3f(0.0f,0.0f,0.0f), 0.5f);
// Cast sphere widget to cloud widget
viz::WCloud cw = sw.cast<viz::WCloud>();

Note

3D Widgets can only be cast to 3D Widgets. 2D Widgets can only be cast to 2D Widgets.