The Player Project

Hello,

Could you post your world file? And could you try this world file:

<?xml version="1.0"?>
<gz:world xmlns:gz="http://playerstage.sourceforge.net/gazebo/xmlschema/#gz"
xmlns:model="http://playerstage.sourceforge.net/gazebo/xmlschema/#model"
xmlns:window="http://playerstage.sourceforge.net/gazebo/xmlschema/#window"
xmlns:param="http://playerstage.sourceforge.net/gazebo/xmlschema/#param">

  <model:ObserverCam>
    <id>userCam0</id>
    <xyz>2 -3 7</xyz>
    <rpy>-0 43 109</rpy>
    <imageSize>640 480</imageSize>
  </model:ObserverCam>

  <model:LightSource>
    <id>light0</id>
    <xyz>-10.000 -10.000 10.000</xyz>
  </model:LightSource>

  <model:GroundPlane>
    <id>ground1</id>
    <textureFile>grid.ppm</textureFile>
  </model:GroundPlane>

  <model:SimpleSolid>
    <xyz>0.000 0.000 5.000</xyz>
    <shape>box</shape>
    <size>0.70 0.70 0.50</size>
    <color>1.0 1.0 1.0</color>
    <textureFile>ground.ppm</textureFile>
    <gravity>false</gravity>
  </model:SimpleSolid>

</gz:world>


-nate

On 4/30/07, Clemens Eppner <ceppner@...> wrote:
> Hi,
>
> I'm trying to eliminate all forces acting on my model.
> But gravity seems to be indestructible: Though I set
> the gravity mode of the model and all its connected
> ones to false it still falls towards the ground plane.
> Strangely enough GetForce, GetLinearVel, etc. all
> return zero. What's happening here??
>
> C.
>
> p.s.:
> Setting gravity in the world file gives an error as
> well; but anyway, this shouldn't be the workaround.
>
> WorldFile.cc:357 warning : in
> ./worlds/example2.world:4 unused attribute
> [GlobalParams]
> WorldFile.cc:357 warning : in
> ./worlds/example2.world:5 unused attribute [gravity]
> main.cc:335 server id [0]
>
>
>
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>
>
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Hi Nate,

thanks. using this tag in the world file works fine
unlike doing this->body->SetGravityMode(..) which
seems to have no effect at all.
before i used a wrong parameter name.

c.

--- Nate Koenig <nkoenig@...> schrieb:

> Hello,
> 
> Could you post your world file? And could you try
> this world file:
> 
> <?xml version="1.0"?>
> <gz:world
>
xmlns:gz="http://playerstage.sourceforge.net/gazebo/xmlschema/#gz"
>
xmlns:model="http://playerstage.sourceforge.net/gazebo/xmlschema/#model"
>
xmlns:window="http://playerstage.sourceforge.net/gazebo/xmlschema/#window"
>
xmlns:param="http://playerstage.sourceforge.net/gazebo/xmlschema/#param">
> 
>   <model:ObserverCam>
>     <id>userCam0</id>
>     <xyz>2 -3 7</xyz>
>     <rpy>-0 43 109</rpy>
>     <imageSize>640 480</imageSize>
>   </model:ObserverCam>
> 
>   <model:LightSource>
>     <id>light0</id>
>     <xyz>-10.000 -10.000 10.000</xyz>
>   </model:LightSource>
> 
>   <model:GroundPlane>
>     <id>ground1</id>
>     <textureFile>grid.ppm</textureFile>
>   </model:GroundPlane>
> 
>   <model:SimpleSolid>
>     <xyz>0.000 0.000 5.000</xyz>
>     <shape>box</shape>
>     <size>0.70 0.70 0.50</size>
>     <color>1.0 1.0 1.0</color>
>     <textureFile>ground.ppm</textureFile>
>     <gravity>false</gravity>
>   </model:SimpleSolid>
> 
> </gz:world>
> 
> 
> -nate
> 
> On 4/30/07, Clemens Eppner <ceppner@...> wrote:
> > Hi,
> >
> > I'm trying to eliminate all forces acting on my
> model.
> > But gravity seems to be indestructible: Though I
> set
> > the gravity mode of the model and all its
> connected
> > ones to false it still falls towards the ground
> plane.
> > Strangely enough GetForce, GetLinearVel, etc. all
> > return zero. What's happening here??
> >
> > C.
> >
> > p.s.:
> > Setting gravity in the world file gives an error
> as
> > well; but anyway, this shouldn't be the
> workaround.
> >
> > WorldFile.cc:357 warning : in
> > ./worlds/example2.world:4 unused attribute
> > [GlobalParams]
> > WorldFile.cc:357 warning : in
> > ./worlds/example2.world:5 unused attribute
> [gravity]
> > main.cc:335 server id [0]
> >
> >
> >
> >        __________________________________ Yahoo!
> Clever - Der einfachste Weg, Fragen zu stellen und
> Wissenswertes mit Anderen zu teilen.
> http://www.yahoo.de/clever
> >
> >
> >
>
-------------------------------------------------------------------------
> > This SF.net email is sponsored by DB2 Express
> > Download DB2 Express C - the FREE version of DB2
> express and take
> > control of your XML. No limits. Just data. Click
> to get it now.
> > http://sourceforge.net/powerbar/db2/
> > _______________________________________________
> > Playerstage-gazebo mailing list
> > Playerstage-gazebo@...
> >
>
https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo
> >
> 
>
-------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2
> express and take
> control of your XML. No limits. Just data. Click to
> get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> Playerstage-gazebo mailing list
> Playerstage-gazebo@...
>
https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo
> 



       __________________________________ Yahoo! Clever - Der einfachste Weg, Fragen zu stellen und Wissenswertes mit Anderen zu teilen. http://www.yahoo.de/clever