[accessibleimage] Re: Maps PC

Lisa,

Yes, I know about the ColorBrewer site and I highly recommend it for 
choosing the right colours for visual maps - think of the thematic maps 
(e.g. of population levels) that you can see in atlases.

However, it isn't meant for picking colours for visually impaired 
persons.

I can't stress enough how important it is to know what the visual 
limitations are/will be of those using your map.  I think it is very 
difficult to design one so that it will be useful for many with varying 
limitations.

If it is to be used by many, I would try to limit the colours to maybe 
2-3 with high contrast between and use more textures, stripes, etc.

Monika


On Jan 11, 2005, at 12:58 PM, Lisa Yayla wrote:

>
> Hi Monika,
>
>
>> My first question - how visually impaired are the persons for whom you
>> are designing these maps?
>
> That I don't know. It's designed for an 8th grader and a
> CCTV user. However since the graphics are SVG it will have
> similar functions, enlarging, moving around. In addition to
> search functions and I've made it a bit interactive in that
> clicking on one country will let one go to a new map.
> However trying to make it so that it will be useful to many.
>
> I am designing the map, so I agree I think the Visicheck
> will be helpful. Also came accross another site called color
> brewer which also helps with color combinations
> http://www.personal.psu.edu/faculty/c/a/cab38/ColorBrewerBeta.html
> It is made by a cartographer at Penn State. Looks good.
>
> That was a good idea about the Daltonize software. I didn't
> think about that.
>
> I have read one article where the designer also used
> texture, stripes etc. What do you think?
>
> Thanks,
> Lisa
>
>> ------------------------------------------------------------------
>> Monika K. Rieger, Ph.D.
>> Adjunct Professor
>> Department of Geography
>> The University of Calgary
>> Calgary AB Canada  T2N 1N4
>>
>> e-mail: mkrieger@xxxxxxxxxxxxxxx
>> Tel: 403-278-5069
>>
>> On Jan 11, 2005, at 6:21 AM, Lisa Yayla wrote:
>>
>>> Hi,
>>> I'm making some maps for visually impaired persons to be displayed 
>>> on a
>>> PC. I was wondering if there is anyone with experience in this area.
>>> Right
>>> now am trying to get the colors right. Have come over a aid called
>>> vischeck at http://www.vischeck.com/
>>> It's a plug in to Photoshop and will take a image and simulate how it
>>> is
>>> seen by a person with different types of color blindness.
>>> The maps are SVGs so that they can be enlarged, reduced, moved around
>>> on
>>> the screen and etc.
>>> Appreciate any feed back.
>>> Regards,
>>> Lisa
>>>
>>>
>>> Lisa Yayla
>>> Huseby Kompetansesenter
>>> Oslo Norway
>>> lisa.yayla@xxxxxxxxxx
>>>
>>>
>

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