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Rviz - Temperature and Relative Humidity topic display

melodic

asked 2020-09-20 08:20:39 -0500

Varun
23 ●8 ●13 ●14

updated 2020-09-20 12:15:21 -0500

gvdhoorn
86574 ●283 ●1432 ●1054 http://cor.tudelft.nl/

I am new to RVIZ, i can get my robot model, odometry and IMU axes displayed in rviz. I have a DHT22 Temperature and humidity sensor connected to arduino and i am reading the sensor data through rosserial to a raspberry pi under

$ rostopic echo temphum

I was wondering how can i make use of the temperature and relative humidity display in rviz. (It is available in Rviz --> Add --> Temperature or Relative Humidity

The information on those displays are Temperature Displays from sensor_msgs/Temperature message

RelativeHumidity Displays the data from sensor_msgs::RelativeHumidity.

I want to visualize the sensor data on rviz. Please let me know how to proceed.

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answered 2021-11-16 03:17:22 -0500

Nykri
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For temperature, you can simply add a Temperature display in rviz interface. This will drop shapes with a color mapped to the temperature value. Be sure to check your temperature_message.header.frame_id to ensure the shapes will be at the correct location (probably your robot position). You can then change the parameters in rviz to choose your desired color range and intensity range.

I've never used it but RelativeHumidity is also available in rviz. It should be similar to Temperature.

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Asked: 2020-09-20 08:20:39 -0500

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