/usr/share/sensor_msgs/msg/FluidPressure.msg is in libsensor-msgs-dev 1.12.3-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 | # Single pressure reading. This message is appropriate for measuring the
# pressure inside of a fluid (air, water, etc). This also includes
# atmospheric or barometric pressure.
# This message is not appropriate for force/pressure contact sensors.
Header header # timestamp of the measurement
# frame_id is the location of the pressure sensor
float64 fluid_pressure # Absolute pressure reading in Pascals.
float64 variance # 0 is interpreted as variance unknown
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