Moving model out of origin gives error

asked 2017-06-20 19:28:06 -0500

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I'm trying to move hector_quadrotor from origin to position (-12.0, -1, 0) in the world. The hector_quadrotor model is made of many parts. One of them, is the sonar sensor.

My code to place it in the word follows:

   <xacro:sonar_sensor name="sonar" parent="base_link" ros_topic="sonar_height" update_rate="10" min_range="0.03" max_range="3.0" field_of_view="${40*pi/180}" ray_count="3">
       <origin xyz="-12.16 -1.0 -0.012" rpy="0 ${90*pi/180} 0"/>

However, I got the error:

propulsion model input contains **!?* Nan values!
drag model input contains **!?* Nan values!

The code to the sensor is this link

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