[juice-users] Re: (No In-Reply-To: <61823090b9e8e42cabf8bb104276ecde@www1.mail.volny.cz>
- From: "Petr Krejci" <volnykrejci@xxxxxxxx>
- To: <juice-users@xxxxxxxxxxxxx>
- Date: Mon, 12 Aug 2002 18:08:09 +0200
thanks, another question
In your help I did not find information about limits of the joints. Hinge
was easy, but I wasnt able to fully understand limit of slider.
----- Original Message -----
From: "Nate W" <coding@xxxxxxxxx>
To: <juice-users@xxxxxxxxxxxxx>
Sent: Sunday, August 11, 2002 7:29 PM
Subject: [juice-users] Re: (No In-Reply-To:
<61823090b9e8e42cabf8bb104276ecde@xxxxxxxxxxxxxxxxxx>
>
> On Sun, 11 Aug 2002 volnykrejci@xxxxxxxx wrote:
>
> > Why I appreciate this program? I am not advanced in CAD or similar
> > systems. That is why i like Juice - simple interface and despite this
> > simplicity Juice offers quite large possibility to create you own
> > design.
>
> I'm glad you like it, that is what I was hoping to create. :-)
>
> > Now I am tryin to do some vehicles. But I need some
> > help. It seems that there is no collision detector.
>
> Yes and no... If you vehicle collides with another object, the physics
> software will make sure that the collision is accurately simulated, but
> there is not a way for the vehicle's control system to detect and respond
> to the collision. This is a feature I would like Juice to have, but I am
> still trying to think of the best way to implement it.
>
> > Is somehow possible to correct it? And I also not perfectly understand
> > position engine (motor) at joints. Does value influence somehow the
> > result? Does value change force or direction? I want to creat joint
> > which will have trend (tend) to return to original postition.
>
> There are two ways to make a joint tend to return to its original
> position.
>
> 1) With a 'clockwork' behavior, set the joint's motor type to
> 'sine' and set the amplitude and offset to zero.
>
> 2) With a 'network' behavior, create constant node and a motor node.
> Assign the motor node to the joint. Connect the constant to the motor.
>
> In both cases, the joint's 'gain' and 'maximum force' properties will
> determine how strongly the joint returns to its position. You might think
> of them as determining the strength of a spring that holds the joint in
> place.
>
> For example, load the motorcycle model, and look at the 'suspension'
> behavior. It's just motor nodes for the front and rear suspension. The
> constant for the front suspension has been adjusted a little bit from
> zero, otherwise the motorcycle's front seemed a little bit too low.
>
> The suspension of the ball-jointed car chassis works the same way but in
> that case the constant was adjusted from zero to 15, so the car has the
> 'jacked-up' look of an off-road vehicle.
>
> Does this help?
>
> --
>
> Nate Waddoups
> Redmond WA USA
> http://www.natew.com
>
>
>
>
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