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Ok thank you, now I will try to follow your advices.

EDIT: I resolved my problem creating a collection within only objects I want that my sensor detects .
Regards

Hi,
I link an image of my scene with sensor proximity mounted on Youbot, I don't understand why it detects without obstacle.The following is the image with scene:
https://www.dropbox.com/s/zfvnymjhu731v ... 2.png?dl=0

Regards

Hi,
I want to know which are differences between reference frame, world reference and parent frame . Thank you

Thank you!!

Do you intend the vector of direction (versor) for normal vector to surface ?

Hi, I'm watching tutorial about proximity sensor and I want to understand the difference between vrep_common::ProximitySensorData::detectedPoint and vrep_common::ProximitySensorData::normalVector
Thank,

How to create a Topic where to publish messages?