sensor_msgs::msg::Illuminance Class Reference

ROS message class definition for Illuminance. More...

#include <sensor_msgs/msg/illuminance.hpp>

Collaboration diagram for sensor_msgs::msg::Illuminance:

Public Attributes
std_msgs::msg::Header	header
	timestamp is the time the illuminance was measured
double	illuminance
	Measurement of the Photometric Illuminance in Lux.
double	variance
	0 is interpreted as variance unknown

Detailed Description

ROS message class definition for Illuminance.

Single photometric illuminance measurement. Light should be assumed to be measured along the sensor's x-axis (the area of detection is the y-z plane). The illuminance should have a 0 or positive value and be received with the sensor's +X axis pointing toward the light source.

Photometric illuminance is the measure of the human eye's sensitivity of the intensity of light encountering or passing through a surface.

All other Photometric and Radiometric measurements should not use this message. This message cannot represent:

• Luminous intensity (candela/light source output)
• Luminance (nits/light output per area)
• Irradiance (watt/area), etc.

  # Single photometric illuminance measurement.  Light should be assumed to be
  # measured along the sensor's x-axis (the area of detection is the y-z plane).
  # The illuminance should have a 0 or positive value and be received with
  # the sensor's +X axis pointing toward the light source.
  #
  # Photometric illuminance is the measure of the human eye's sensitivity of the
  # intensity of light encountering or passing through a surface.
  #
  # All other Photometric and Radiometric measurements should not use this message.
  # This message cannot represent:
  #  - Luminous intensity (candela/light source output)
  #  - Luminance (nits/light output per area)
  #  - Irradiance (watt/area), etc.
   
  std_msgs/Header header # timestamp is the time the illuminance was measured
                               # frame_id is the location and direction of the reading
   
  float64 illuminance          # Measurement of the Photometric Illuminance in Lux.
   
  float64 variance             # 0 is interpreted as variance unknown

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

• sensor_msgs/msg/illuminance.hpp