POV-Ray : Newsgroups : povray.binaries.images : A 3D image Server Time
4 Nov 2024 20:15:35 EST (-0500)
  A 3D image (Message 1 to 5 of 5)  
From: sahraoui
Subject: A 3D image
Date: 22 Mar 2007 18:20:01
Message: <web.46030efcafb675cb439ba8f00@news.povray.org>
Hi

I am trying to draw the following thing:
A lipid membrane but some lipid molecules are connected by helices or
springs.
I tried to do it but it is not impressive. If anyone tried this before (it
seems tedious)
could he share his code with me and I will mention his name in my paper.
Basically it is made of many sheets (like a cloth . gray let's say)
every cloth has lipids molecule attached to it. and the top layer made of
lipids
connected by springs. not periodically but randomly.

I am attaching an image done with povray but by someone else (it is in
grayscale) and another image
which shows the cut of the membranes with the lipids shown in blue. I cannot
attach two files. I will send another email  later with the other
attachment.

ciao


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Preview of image 'dubus-fournier_epl_75_181.jpg'
dubus-fournier_epl_75_181.jpg


 

From: Penelope20k
Subject: Re: A 3D image
Date: 23 Mar 2007 03:39:44
Message: <46039250@news.povray.org>
I think i wil have a different approch for your image.

- I will  made less turns for your helices
- i saw on your image 2 kind of spring and helices ...how do you distinguish
them ..?
- did you membrane really needed.. if not think about a some kind of see
(membrane with a volume)..





news:web.46030efcafb675cb439ba8f00@news.povray.org...
> Hi
>
> I am trying to draw the following thing:
> A lipid membrane but some lipid molecules are connected by helices or
> springs.
> I tried to do it but it is not impressive. If anyone tried this before (it
> seems tedious)
> could he share his code with me and I will mention his name in my paper.
> Basically it is made of many sheets (like a cloth . gray let's say)
> every cloth has lipids molecule attached to it. and the top layer made of
> lipids
> connected by springs. not periodically but randomly.
>
> I am attaching an image done with povray but by someone else (it is in
> grayscale) and another image
> which shows the cut of the membranes with the lipids shown in blue. I
cannot
> attach two files. I will send another email  later with the other
> attachment.
>
> ciao
>


----------------------------------------------------------------------------
----


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From: sahraoui
Subject: Re: A 3D image
Date: 23 Mar 2007 11:00:02
Message: <web.4603f93e30bc53b5439ba8f00@news.povray.org>
There is no problem in making less turns.
Well I drew springs because the software I was using
is not that great (illustrator). That image is just an illustration
The spring are supposed to be replaced by helices.
Yes the membrane is needed unless we make a lot of spheres that would make
a sheet
what do you mean by membrane with a volume

regards

"Penelope20k" <pen### [at] caramailfr> wrote:
> I think i wil have a different approch for your image.
>
> - I will  made less turns for your helices
> - i saw on your image 2 kind of spring and helices ...how do you distinguish
> them ..?
> - did you membrane really needed.. if not think about a some kind of see
> (membrane with a volume)..
>
>
>
>

> news:web.46030efcafb675cb439ba8f00@news.povray.org...
> > Hi
> >
> > I am trying to draw the following thing:
> > A lipid membrane but some lipid molecules are connected by helices or
> > springs.
> > I tried to do it but it is not impressive. If anyone tried this before (it
> > seems tedious)
> > could he share his code with me and I will mention his name in my paper.
> > Basically it is made of many sheets (like a cloth . gray let's say)
> > every cloth has lipids molecule attached to it. and the top layer made of
> > lipids
> > connected by springs. not periodically but randomly.
> >
> > I am attaching an image done with povray but by someone else (it is in
> > grayscale) and another image
> > which shows the cut of the membranes with the lipids shown in blue. I
> cannot
> > attach two files. I will send another email  later with the other
> > attachment.
> >
> > ciao
> >
>
>
> ----------------------------------------------------------------------------
> ----


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From: dlm
Subject: Re: A 3D image
Date: 24 Mar 2007 16:40:12
Message: <46059abc$1@news.povray.org>
Is this the sort of thing you're looking for?
http://hsb.iitm.ac.in/~jm/ARCHIVES/Jan-Feb04/articles_files/blood_files/rbc-em1.png
or are you looking to show a bilayer?
DLM



"sahraoui" <sch### [at] uiucedu> wrote in message 
news:web.46030efcafb675cb439ba8f00@news.povray.org...
> Hi
>
> I am trying to draw the following thing:
> A lipid membrane but some lipid molecules are connected by helices or
> springs.
> I tried to do it but it is not impressive. If anyone tried this before (it
> seems tedious)
> could he share his code with me and I will mention his name in my paper.
> Basically it is made of many sheets (like a cloth . gray let's say)
> every cloth has lipids molecule attached to it. and the top layer made of
> lipids
> connected by springs. not periodically but randomly.
>
> I am attaching an image done with povray but by someone else (it is in
> grayscale) and another image
> which shows the cut of the membranes with the lipids shown in blue. I 
> cannot
> attach two files. I will send another email  later with the other
> attachment.
>
> ciao
>


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From: sahraoui
Subject: Re: A 3D image
Date: 24 Mar 2007 21:30:02
Message: <web.4605dd1230bc53b5845cedef0@news.povray.org>
Nope
Actually an image like that is all over the places.
I am making my own stuff. Actually I am almost there.
I am modeling a red blood cells with
some missing links (helices) between the lipids (spheres).
here what i am working on.
yellow are the headgroups.
red is the aliphatic tail
the blue is water between two bilayers.
Now I have to draw helices between almost half of the top
spheres, because as I said it is a blood cell with missing links

cheers

"dlm" <me### [at] addressinvalid> wrote:
> Is this the sort of thing you're looking for?
> http://hsb.iitm.ac.in/~jm/ARCHIVES/Jan-Feb04/articles_files/blood_files/rbc-em1.png
> or are you looking to show a bilayer?
> DLM
>
>
>
> "sahraoui" <sch### [at] uiucedu> wrote in message
> news:web.46030efcafb675cb439ba8f00@news.povray.org...
> > Hi
> >
> > I am trying to draw the following thing:
> > A lipid membrane but some lipid molecules are connected by helices or
> > springs.
> > I tried to do it but it is not impressive. If anyone tried this before (it
> > seems tedious)
> > could he share his code with me and I will mention his name in my paper.
> > Basically it is made of many sheets (like a cloth . gray let's say)
> > every cloth has lipids molecule attached to it. and the top layer made of
> > lipids
> > connected by springs. not periodically but randomly.
> >
> > I am attaching an image done with povray but by someone else (it is in
> > grayscale) and another image
> > which shows the cut of the membranes with the lipids shown in blue. I
> > cannot
> > attach two files. I will send another email  later with the other
> > attachment.
> >
> > ciao
> >


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bilayer.png


 

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