[PD] msd feature request

marius schebella marius.schebella at gmail.com
Wed Apr 30 19:47:54 CEST 2008


Frank Barknecht wrote:
> Hallo,
> marius schebella hat gesagt: // marius schebella wrote:
> 
>> I know, I am already too old for posting feature requests. I was just 
>> thinking that I miss the ability to damp the speed of masses in msd.
>> right now I am using something like
>> mass mass1 1 100 0 0
>> mass mass2 1 100 1 0
>> link l mass1 mass2 10 10 0 0.01 0
>> link l 1
>> I want that the masses reject each other within a certain range and then 
>> just reduce speed and stop if the speed is lower than a certain threshold.
>> probably I should try to implement this myself. but maybe I am only 
>> missing something.
> 
> Are you looking for some kind of "air resistance" damping?  I normally
> use an "nlink" or "tlink" to add a global damping to masses. 

I am not quite sure how nlinks and tlink work. tLink seems to work with 
a vector that is not related to the current link vector but to absolute 
x/y, maybe nLink is what I need? but nlinks do not work for me at all, 
or are they no real links or is this a bug?
tLink with a vector 1/1 seems to be the same as the plain link message. 
correct? and there seems to be no difference between a tLink 1/1 and a 
tLink 2/2?

I tried to use tLink to get global damping, but I am not sure how to do 
this (attached patch..)
marius.
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