Point Cloud Library (PCL)  1.8.1-dev
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pcl::PointXYZRGB Struct Reference

A point structure representing Euclidean xyz coordinates, and the RGB color. More...

#include <pcl/impl/point_types.hpp>

+ Inheritance diagram for pcl::PointXYZRGB:

Public Member Functions

 PointXYZRGB (const _PointXYZRGB &p)
 
 PointXYZRGB ()
 
 PointXYZRGB (uint8_t _r, uint8_t _g, uint8_t _b)
 

Friends

std::ostream & operator<< (std::ostream &os, const PointXYZRGB &p)
 

Additional Inherited Members

- Public Attributes inherited from pcl::_PointXYZRGB
 PCL_ADD_POINT4D
 
 PCL_ADD_RGB
 

Detailed Description

A point structure representing Euclidean xyz coordinates, and the RGB color.

Due to historical reasons (PCL was first developed as a ROS package), the RGB information is packed into an integer and casted to a float. This is something we wish to remove in the near future, but in the meantime, the following code snippet should help you pack and unpack RGB colors in your PointXYZRGB structure:

// pack r/g/b into rgb
uint8_t r = 255, g = 0, b = 0; // Example: Red color
uint32_t rgb = ((uint32_t)r << 16 | (uint32_t)g << 8 | (uint32_t)b);
p.rgb = *reinterpret_cast<float*>(&rgb);

To unpack the data into separate values, use:

// unpack rgb into r/g/b
uint32_t rgb = *reinterpret_cast<int*>(&p.rgb);
uint8_t r = (rgb >> 16) & 0x0000ff;
uint8_t g = (rgb >> 8) & 0x0000ff;
uint8_t b = (rgb) & 0x0000ff;

Alternatively, from 1.1.0 onwards, you can use p.r, p.g, and p.b directly.

Definition at line 606 of file point_types.hpp.

Constructor & Destructor Documentation

pcl::PointXYZRGB::PointXYZRGB ( const _PointXYZRGB p)
inline

Definition at line 608 of file point_types.hpp.

pcl::PointXYZRGB::PointXYZRGB ( )
inline

Definition at line 614 of file point_types.hpp.

pcl::PointXYZRGB::PointXYZRGB ( uint8_t  _r,
uint8_t  _g,
uint8_t  _b 
)
inline

Definition at line 621 of file point_types.hpp.

Friends And Related Function Documentation

std::ostream& operator<< ( std::ostream &  os,
const PointXYZRGB p 
)
friend

The documentation for this struct was generated from the following file: