Hi in Webots's manual and ODE document : "FDS is an effect that causes the contacting surfaces to side past each other with a velocity that is proportional to...
Hi guys: Â Â Â After driving a servo with the function of wb_servo_set_position() (I use the version of webots 6.1.1),the object will reach the supposed...
Hello, ... The Servo oscillates always gently around the target position due to the very nature of the P-controller (proportional control). In addition, there...
Hi Colin, I think I have well understood your problem now; you are trying to do an interface communicating with Webots. There are different ways to design this...
Hi Victor, In the current implementation of Webots, the three first values of the * inertiaMatrix* are redundant with the *centerOfMass* values. They define ...
Hi Lee, When you add a *Physics* node, the position and the orientation of the object is handled by ODE (our physics engine). The vibrations comes often from a...
Hello, Maybe the FDS terminology is specific to ODE or to physics simulation instead of real physics... Unfortunately we cannot provide you with a better...
Hello everyone! There is a problem about CoordIndex. Recently I want to use the coordIndex of IndexedFaceSet.But when I add the second indice for the second...
Hi, Generally, the *IndexedFaceSet* primitive is pretty robust. I guess there is something wrong in your operation. Try to fill first the *coord* field with ...
Hello Miguel, Maybe you haven't placed the contact joints in the "contact joints group" which you initially receive with webots_physics_init(). Contact joints...
Hi, I have a simulation that works just fine as long as I don't add the supervisor. The supervisor just places the two robots in the appropriate initial...
Hello Noelia, Your code looks good. Are you sure that all four pointers: hunterrobot preyrobot huntertranslation preytranslation ... are non-NULL ? If this is...
Hi Yvan, I checked and the pointers where in deed NULL. I finally realised that I was using the names instead of the DEF names... since it is the opposite with...
Hi All, I have designed the caster wheel (free moving wheel) using Servo by setting its MaxForce as 0. While Robot moving Front and backward direction this...
Hello, I don't know exactly how you modelled the caster wheel, but my intuition says that you would need two (not three !) passive (maxForce = 0) Servos: one...
Dear all: I open 'e-puck_crosscompilation.wbt' and try to do cross-compile But I get message in console windows as below: mingw32-make -f Makefile.e-puck In...
Hello, Thanks for the image, now I'm even more convinced that the problem is that the two axes cross each other. Instead I believe that you should move the...
Ok, i got your point i will check with the axis not to overlap each other. if possible can you check my webots file whether i have implement correctly. ...
Hi Fabien,  I have got the problem. I can add the IndexedFaceSet node with the VRML format in the TextEdit without error. But I still can't add it in the...
Hi, There was effectively a problem with the standard library, thank you for this contribution. Some libraries were missing during the crosscompilation. This...
Hello Yvan, I made the two servo axis as you said, but even that the problem didnt get solved. later i made the wheel(horizontal axis) servo as a children of...
Hello Vinod, Yes indeed the general structure should be something like: Robot { ... children [ ... DEF VERTICAL Servo { ... children [ ... DEF HORIZONTAL Servo...
Hi, I am pleased to announce we just released Webots 6.1.4. This is a minor upgrade which correct a couple of bugs and update the Nao and robotstadium models. ...
Hi guys: Â Â Â In my simulation enviroment,I need to use the connector node to connect two robots.However,I failed to realise the connect using the function...
Hello all! I want to use the existing model constructed by ProE.So I save it as VRML.The problem occur when I import the model to the webots. If I open the...
Hello, ... The connectors will lock if the function wb_connector_lock() is called while the "presence" condition is fulfilled. The presence condition is...
Hi,   Thanks for your reply.As for my simulation world,in fact,I think it has fulfilled those conditions you listed,such as in_position and compatible.I...
Hi, Â Â What I want to add is that ,using the function of"wb_connector_get_presence()"to check the condition ,it actually returns the value of 1,but I cannot...
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