Dear All, I am trying to find a tool to create mobile robots.As an option that could be used is blender however the version which I use exports Collada in 1.4.1 version. As suggested, I changed the second line to the following <COLLADA xmlns="http://www.collada.org/2008/03/COLLADASchema" version="1.5.0"> however certain scenes display as error stating "possible schema violation" 1. Is it possible for me to know a tool to get started with to model a robot which we use and can be used in openrave ? 2. Is it possible for me know on how to get started with physics engine getting incorporated to collada and how to use it in openrave. Intention is to use Bullet physics engine libraries through PAL. Sorry to bug you. Thank you in advance Best Regards Praveen |
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Hi Praveen,
these are excellent questions. > 1. Is it possible for me to know a tool to get started with to model a robot > which we use and can be used in openrave ? what type of scenes are you exporting to collada? if you are doing robots, then you might be able to use OpenGrasp, which is a Robot Editor extension for Blender that writes COLLADA 1.5 files compatible with OpenRAVE. We say 'might' because it looks like support for newer blender versions is not added yet. http://opengrasp.sourceforge.net/robotEditor.html#roboteditor > 2. Is it possible for me know on how to get started with physics engine > getting incorporated to collada and how to use it in openrave. Intention is > to use Bullet physics engine libraries through PAL. openrave 0.4.2 adds ability to read the physics mass and inertia parameters from rigid links. thanks to Max Argus and Nick Hillier, we recently added a bullet physics engine plugin to openrave. Note that the openrave debian packages do not have the bullet plugin since there are no standard bullet packages (yet). If you have bullet installed while compiling openrave, the plugin should compile. there was a team a while back that developed a PAL plugin for openrave, but they found that the PAL interface does not expose enough functionality needed, so they gave up on it. hope this helps, rosen, 2011/8/11 Praveen <[hidden email]>: > > Dear All, > > I am trying to find a tool to create mobile robots.As an option that could > be used is blender however the version which I use exports Collada in 1.4.1 > version. > > As suggested, I changed the second line to the following > > <COLLADA xmlns="http://www.collada.org/2008/03/COLLADASchema" > version="1.5.0"> > > however certain scenes display as error stating "possible schema violation" > > 1. Is it possible for me to know a tool to get started with to model a robot > which we use and can be used in openrave ? > > 2. Is it possible for me know on how to get started with physics engine > getting incorporated to collada and how to use it in openrave. Intention is > to use Bullet physics engine libraries through PAL. > > Sorry to bug you. > > Thank you in advance > > Best Regards > Praveen > > > -- > View this message in context: http://openrave-users-list.185357.n3.nabble.com/COLLADA-exporter-tp3246126p3246126.html > Sent from the OpenRAVE Users List mailing list archive at Nabble.com. > > ------------------------------------------------------------------------------ > Get a FREE DOWNLOAD! and learn more about uberSVN rich system, > user administration capabilities and model configuration. Take > the hassle out of deploying and managing Subversion and the > tools developers use with it. > http://p.sf.net/sfu/wandisco-dev2dev > _______________________________________________ > Openrave-users mailing list > [hidden email] > https://lists.sourceforge.net/lists/listinfo/openrave-users > ------------------------------------------------------------------------------ Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-dev2dev _______________________________________________ Openrave-users mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/openrave-users |
Am 12.08.2011 um 02:27 schrieb Rosen Diankov:
The robot editor requires blender 2.49 at the moment and there is some probability that you will encounter some glitches in the current version (make sure to download the newest version from svn). However, we started a complete rewrite based on the newest blender version this month which hopefully will be usable in a couple of weeks. Best regards Stefan -- Karlsruher Institut für Technologie (KIT) Institute for Anthropomatics - IAIM Humanoids and Intelligence Systems Lab Stefan Ulbrich Research Scientist Adenauerring 2 (Building 50.20, R323) 76131 Karlsruhe, Germany Phone: +49 721 608-45336 Fax: +49 721 608-44077 EMail: [hidden email] http://his.anthropomatik.kit.edu/ National Research Center of the Helmholtz Association ------------------------------------------------------------------------------ Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-dev2dev _______________________________________________ Openrave-users mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/openrave-users |
Thanks a lot for directing towards Robot Editor. Is it possible to model for now a mobile robot with different kinds of wheels. As I understand, there is no option for now. Are there any plans to include modelling of mobile robots also in Robot Editor.? Just to get started I just want to create a three wheeled robot (a box with three wheels). 1. How can I link the wheels to the differential in Collada through Robot Editor ? I have the logic on how to control the vehicle in code and also the physics required but kind of ignorant about the modelling in blender and how to link it to the physics required ? Can you please help me get started ? Thank you in advance Best Regards Praveen |
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Hi Praveen,
there's a diff drive example in openrave: http://openrave.org/en/main/openravepy/examples.testphysics_diffdrive.html i'm attaching two files: - openrave xml of the robot - dae of the robot (exported from openrave) this could at least show you the structure of the dae file (perhaps you can even edit it by hand, but then it would be easier if you use OpenRAVE XML). as for using Robot Editor, you'l have to talk with Stefan. rosen, 2011/8/12 Praveen <[hidden email]>: > > Thanks a lot for directing towards Robot Editor. > > Is it possible to model for now a mobile robot with different kinds of > wheels. As I understand, there is no option for now. Are there any plans to > include modelling of mobile robots also in Robot Editor.? > > Just to get started I just want to create a three wheeled robot (a box with > three wheels). > > 1. How can I link the wheels to the differential in Collada through Robot > Editor ? > > I have the logic on how to control the vehicle in code and also the physics > required but kind of ignorant about the modelling in blender and how to link > it to the physics required ? > > Can you please help me get started ? > > Thank you in advance > > Best Regards > Praveen > > -- > View this message in context: http://openrave-users-list.185357.n3.nabble.com/COLLADA-exporter-tp3246126p3249387.html > Sent from the OpenRAVE Users List mailing list archive at Nabble.com. > > ------------------------------------------------------------------------------ > Get a FREE DOWNLOAD! and learn more about uberSVN rich system, > user administration capabilities and model configuration. Take > the hassle out of deploying and managing Subversion and the > tools developers use with it. > http://p.sf.net/sfu/wandisco-dev2dev > _______________________________________________ > Openrave-users mailing list > [hidden email] > https://lists.sourceforge.net/lists/listinfo/openrave-users > ------------------------------------------------------------------------------ Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-dev2dev _______________________________________________ Openrave-users mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/openrave-users |
In reply to this post by Praveen
Hi Praveen,
i'm working for a project so similar at yours and i've your same old questions/problems. I've my model complete in blender and i can't import it in OpenRAVE with all kinematics informations. Have you find a solution for your questions? If yes, you can be very useful for me! Sorry if my english is not perfect (i'm an italian student ![]() Thank you so much. Strikedp |
Hi, Can you send your blender file ? Regards Praveen
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