How can I map temperature readings to a location?
I have a rover, that is creating a map using GMapping. On the rover, I also have a temperature sensor. I got the temperature readings in rviz, but I want to make a map that is a heatmap of the readings.
How would I go about doing this? Are there any packages that already do this?
I know there is http://wiki.ros.org/heatmap , but it seems its only for Wifi, and you cannot export the map as an image, you can only visualize it in rviz.
I also have a similar problem - I am looking for a method to overlay some sensor data on a map generated with GMapping to create a spatial heat map. Initially, I am likely to be testing this by publishing random numbers to a topic that a heat map generator node will subscribe to and create the heat map from when combined with robot X and Y coordinates. Ultimately, I'm looking to be able to manually move a robot around and visualise how this heat map is building up according to sensor data (i.e. the random number) at the robots position. Any ideas would be much appreciated!