The kinect laser scan output range is 40 am to almost 4 m. If the distance is less than 40 cm or greater than 4 m, then the output range is NaN. I am trying to stop the turtle bot if the distance is less than a certain value. But if I use comparative operators, then the bot stops even when the distance is greater then 4 m as the value then is NaN. What shall i do????

[sakshikakde]