Re: Low Vision doc -- Re: [wbs] response to 'EOWG Weekly Survey - 12 February 2016'

Hi Shawn and all,

Re "check the next option" - yes - see previous reply

Re "Rivers are primarily caused by full justification" - yes, full
justification is the cause, but the effect of full justification
(especially poor algorithms for it) is poor word spacing and that is what
cause the rivers of white. I was suggesting the split as the spacing is
what causes the rivers of white (even though the poor spacing is caused by
full justification) - rivers of white is a traking issue, hence suggesting
it fits under 3.2. Maybe I'm being too pedantic ;-)

Re "difficulty reading because of rivers, what could they do about it" -
not sure about the 'proportional font' suggestion, proportional-spaced
fonts still cause rivers of white. One other ideal suggestion - "change the
degree of hyphenation". [maybe talk to Bert Bos about some current CSS
considerations / maybe also the Digital Publishing Interest Group / Digital
Publishing A11y TF ]

Andrew


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

*Andrew Arch*

*Lead *– Accessibility / Inclusivity / Assisted Digital

Digital Transformation Office <http://www.dto.gov.au/>

0438 156 883 (general office)

e. andrew.arch@digital.gov.au  |  t. @AusDTO <https://twitter.com/AusDTO>
@amja <https://twitter.com/amja>


On 18 February 2016 at 01:30, Shawn Henry <shawn@w3.org> wrote:

> Andrew Arch via WBS Mailer wrote:
> ...
>
>> ---------------------------------
>>> Accessibility Requirements for People with Low Vision - Before Draft
>>> Publication
>>> ----
>>> Is there anything that is important to address before FPWD publication?
>>>
>>> If you put comments in GitHub, please label them "before FPWD".
>>>
>>>   * ( ) I reviewed or skimmed it and do not see any issues that need to
>> be
>> addressed before it is published as a draft.
>>   * (x) I reviewed it and put comments in GitHub that need to be addressed
>> before it is published as a draft.
>>
>
> Did you mean to check the next option? :-)
>
>   * ( ) I reviewed it and put Comments below that need to be addressed
>> before it is published as a draft.
>>   * ( ) I have not yet gotten to it, and will by the date below.
>>   * ( ) I will pass on commenting this time.
>>
>> Editors' discretion, but should be considered:
>> 3.4.3 'rivers of 'white' issue should be split off and placed under 3.2
>> consider cross referencing 3.4.6 with 3.6.2
>>
>
> Thanks for reviewing the doc, Andrew!
>
> Rivers are primarily caused by full justification, afaik. It could be made
> worse by increased space between words. Are there other causes?
>
> If a person has difficulty reading because of rivers, what could they do
> about it - in an ideal situation?
> * undo full justification
> * change the word wrapping / line length -- e.g., resize the text area
> width, or change the text size in a fixed width
> * ? change from monospaced font to proportional font
> * @@ anything else?
>
> The issue of rivers is primarily within paragraphs, afaik. 3.4.6 and 3.6.2
> are more about spacing around paragraphs (and other things) rather than
> spacing within paragraphs.
>
> If you have any more info or references -- formal or informal -- to share
> to help the LVTF further understand the issue, we welcome them!
>
> Best,
> ~Shawn
>