Dear Michel, Could you tell me how to caculate the direction of robot form the GPS matrix returned by function gps_get_matrix? As it is said in referenc...
... It's not as easy as for the position... Indeed a robot orientation is defined in space by 3 rotations which can be extracted from the OpenGL 4x4 matrix in...
Dear Olivier, The method you mentioned is crect. The following is my code to get the angle for khepera: .... const float *m_GpsMatrix; //GPS Matrix //Robot...
Dear Colleagues, I found that when I use the Remote Control mode to run my controller on khepera, it is difficult to control robot¡¯s action accurately ...
... This problem is due to the remote control system which induce some delay in the control loop. If you use a cross-compiled version of your program, it...
Hello, Some users are asking me how to install both Webots 3 and Webots 4 beta on the same Windows machine. On Linux, it is much more intuitive (install webots...
Hello, A new release of Webots 4 beta is available for download. You can use the same webots.key as in Webots 4 beta 3. It includes many bug fixes and...
Hello, I am proud to announce Webots 4.0.0! Well, this doesn't mean it a 100% bug free version, but it seems to be pretty stable and usable now. We will...
... Indeed, yes. The next contest will start on July 1st, 2003 and will end on May, 1st 2004. The rules will be available by mid-June 2003. The scenario is...
Dear Sir, You have to set the include path to C:\Program Files\Webots\include in the VC++ project options. Please see the braiten example provided with Webots...
I went to meet someone in a dark corner of a fancy quiet restraunt while wearing something black, tight, and revealing. The guy I was with got hot and hard...
Hello, A new release of Webots 4, tagged 4.0.3 is available for download from the usual place: http://www.cyberbotics.com/products/webots/download.html It...
Hello, I just tried to start alife.wbt and get the following exception: java.lang.unsatisfiedLinkError: no JavaController in java.library.path Controller.jar...
... Matthew, Java is searching a native library which is in the webots/lib directory and is called libJavaController.so on Linux, JavaController.dll on Windows...
Hello, I am using Webots Evaluation release 4.0.3 and am running Windows XP. There is no JavaController.* in the lib directory. (Only Controller.jar, ...
You are correct. This file is missing in the windows version of Webots 4.0.3... Here is the place where you can download and install this missing file: ...
Hello, after downloading the missing files I got alife up and running. Thank you! But I have two more questions :-) 1) I would like to use some 3rd party...
... Fine. ... Adding the corresponding full path to the necessary .jar files in your global CLASSPATH environment variable should do the trick. ... If you...
... Unfortunatly not. I have everything in my system classpath (the programs run from the command prompt) but the error when starting via webots remains....
... I found the problem: Webots launch java by specifying the classpath as a command line argument (java -cp) which overrides the CLASSPATH global environment...
Hello, A new release of Webots is available for download. This new release introduces a new range finder sensor implemented as a special mode for the camera...
Dear Dr. Michel, I am using Webots 3.2.22. I can compile and link for the codes for normal robot by MS visual c 6. However, I can only compile, but cannot link...
Liu Zheng
g0202255@...
Jul 1, 2003 1:27 pm
311
... Normally no extra lib is necessary to link a supervisor with Visual C++. Could you tell me which error messages do you get ? Eventually, could you send me...
Thanks. I find when I commented the following line; I could compile and link the source code well. ~~~void supervisor_set_mouse_mode(int m);~~~ Best wishes, ...
Liu Zheng
g0202255@...
Jul 1, 2003 2:43 pm
313
Hello, This new release has only a few minor improvements: * Changed the splash screen to the about box showing up only on the first run * Extended the...
Hello, is there a way to get an instance of the controller class (like ALife1)? It would be nice to be able to work on object instances so one and the same...
... What do you mean exactly ? Would you like to have the complete definition of the Controller class ? ... I am not sure what you exactly mean. Could you...
I would like to create a GUI and a JXTA controller which can talk to the robots. ALife1 robot1 = new ALife1(); ALife1 robot2 = new ALife1(); ALife0 robot3= new...
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