[Tinyos-help] set distance between motes in tinyviz

[Darren Bishop]

That plugin is a bit buggy.

I have just played with it.

i) setup a grid of 100 nodes
ii) set the radio model to to fixed radius 10
ii) set the scalingfactor to 2

At this point all nodes are isolated. For some reason the radius is divided by 
the scale factor; radius 10 / factor 2 = new-radius 5, hence why all nodes 
are isolated, given they are 10 apart.

The buggyness is in the need to hit ENTER then click update when you change 
the scale; also be patient as I think responsiveness degrades as the network 
size increases.

-- 
Warm regards,

Darren Bishop, MSc, BSc (Hons), MBCS

On Friday 04 August 2006 21:29, Nilay wrote:
> Thanks Darren,
> but that doesnt help too.
> I set up the 50 motes in a grid fashion, the distant of each is by 12.5
> units (when u enable the grid lines). Chose a radio model with radius 10.0
> but still the either mote can reach any other mote which is way more than
> 10.0 units. Can u suggest something more (a plugin usage manual link)or a
> working example.
>
> Thanks,
> Nilay
>
> On Tue, 01 Aug 2006 Darren BISHOP wrote :
> >Hey Nilay,
> >
> >In TinyViz goto the 'Plugins' menu and enable the 'Radio model' plugin.
> > Select the corresponding control panel (on the right) and choose the
> > radio range e.g. 'Fixed radius (10.0)'. You can then scale this by
> > setting the 'Distance scaling factor'; I believe you must use the
> > reciprocal of the factor by which you wish to scale.
> >
> >Hope this helps.
> >
> >Darren
> >
> >Nilay Chheda wrote:
> >>  Thanks Darren,
> >>The real thing I want to do is to limit the radio range to some nodes.
> >>I am simulating around 50 nodes and want to form a tree using them.
> >>The problem here is that the root (mote 0) broadcast and allocates the
> >> even furthest node (consider nodes are placed in a grid fashion)as its
> >> child. So I want to limit the radio range to a certain known distance so
> >> as to form the next level of the tree. As you said I can use the
> >> RadioModel plugin but how do I set the distance so that I can actually
> >> get the relation between the radio range and distance parameters. In
> >> other other words, set a numerical distance between two nodes to get 
> >> the numerical radio range. I hope thats not too confusing.
> >>
> >>Thanks,
> >>Nilay