[Nfb-science] Hello

[qubit]

no, it is easy to create a 3d tactile picture by simply raising the line 
that is in front and deleting part of the image underneath.
In fact, it is an optical illusion when it is done in ink, but with a 
tactile picture, you are working in 3 dimensions, so you have a truer 
picture.
--le

----- Original Message ----- 
From: "Larry Wayland" <larry.wayland at arkansas.gov>
To: "NFB Science and Engineering Division List" <nfb-science at nfbnet.org>
Sent: Monday, July 12, 2010 10:38 AM
Subject: Re: [Nfb-science] Hello


A drawing representing three dimensions is an optical illusion.  The key 
word here being optical.  I don't think it is possible to create a three d 
tactical allusion.  No matter how you arrange the lines they will still feel 
two d.
Larry



-----Original Message-----
From: nfb-science-bounces at nfbnet.org [mailto:nfb-science-bounces at nfbnet.org] 
On Behalf Of KEC at VISI.COM
Sent: Monday, July 12, 2010 10:13 AM
To: NFB Science and Engineering Division List
Subject: Re: [Nfb-science] Hello

Hello,
    This tactile graphics is an issue that keeps coming up.  As a sighted
person, and a "science person" who has transcribed science/math materials as
well as tutored some blind students, I believe that the tactile graphics are
fine if use with an educated reader who can clearly explain what you are
feeling.  I think too often the graphic looks good to a sighted person, and
yet is misleading to someone who doesn't see.  Also, since some people with
visual impairment see well enough to have images enlarged on the computer,
it is only a subset of the blind community who truly relies on tactile
images.  I would like to see if we can have educated individuals who can
give a verbal description that accompanies tactile images/materials.  I have
repeated seen blind individuals not have the same understanding of a graphic
image as sighted ones.  This is just based on the "snap shot" view that a
sighted indivual has that is not duplicated when you are feeling the whole
image.  Simple verbal descriptions that give an understanding of what the
"larger picture is" and possible 3D models rather than images would be a
great improvement. I have been trying to encourage educators of this
approach, but they complain about the costs and state this is how it has
always been done.  If anyone on the list agrees and have an ideas on how we
could make this improvement, I believe that is would help many.
Karen

----- Original Message ----- 
From: "Kartik Sawhney" <sawhney.kartik at gmail.com>
To: "nfb-science" <nfb-science at nfbnet.org>
Sent: Monday, July 12, 2010 2:05 AM
Subject: Re: [Nfb-science] Hello


> Hi,
>
> Thanks a lot Mike for the reply from your side. I wanted to know if
> these techniques enabled you to understand all sorts of diagrams with
> ease. As it is, Physics curriculum is full of diagrams only. How did
> you manage 3-dimentional figures. Further, explaining complex
> structures as loops when dealing with electrostatics becomes tough.
> Isn't it? How did you manage it then? I would request other people on
> list to kindly comment and help me out as well. Further, is the
> curriculum of the American universities as MIT  and others have a
> curriculum for Computer Sciences and Electronic Engineering which is
> suitable for completely blind students?
>
> Regards,
> -Kartik.
>
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