[BlindRUG] latest in interactive exploration of graphs

[JooYoung Seo]

  Awesome Dr. Godfrey!

 

  Before everything else, I would like to thank you for your hard work on
this groundbreaking function. 

 

 I have tested MakeAccessibleSVG() function on my system and found the
following issues:

 

1.       When the result HTML file is populated in Firefox, the size of
graphic object is not fully displayed. This issue does not occur in Chrome.

 

2.       The function does not allow me to feed graphic argument using
variable; it only permits direct input. Please refer to the below:

 

##--example code starts here--

> data<-hist(airquality$Ozone)

> BrailleR::MakeAccessibleSVG(data)

Error in grid.echo.default() : No graphics device

##Example code ends here

 

3.       The function does not return HTML results for boxplot, but just R
graphic object.

 

##Example code

> BrailleR::MakeAccessibleSVG(boxplot(airquality$Ozone))

Error in as.hexmode(strsplit(lty, "")[[1]]) :

'x' cannot be coerced to class "hexmode"

##Code ends here

 

  Personally, I hope we could implement sonification in conjunction with the
current structured keyboard navigation like SAS Graphic Accelerator does.

 

  Thank you so much again.

 

  Sincerely,

 

  JY

 

       JooYoung Seo

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

  Doctoral Student,

  Learning, Design, and Technology

  Learning and Performance Systems

  The Pennsylvania State University

  Phone: +1 (814) 777-5825

E-mail:  <mailto:jzs323 at psu.edu> jzs323 at psu.edu

 <http://www.jooyoungseo.com> www.jooyoungseo.com

 

From: BlindRUG [mailto:blindrug-bounces at nfbnet.org] On Behalf Of Godfrey,
Jonathan via BlindRUG
Sent: Wednesday, May 3, 2017 1:30 AM
To: BlindRUG at nfbnet.org
Cc: Godfrey, Jonathan <A.J.Godfrey at massey.ac.nz>
Subject: [BlindRUG] latest in interactive exploration of graphs

 

Hi all,

 

After our success with getting histograms sorted, Volker Sorge and I have
turned our attention to other types of plots.

 

Please take a look at a boxplot example using Firefox or chrome as your
browser:

https://zorkow.github.io/BrailleR/www/generic.html?mole=data/boxplots/CarMil
age

 

and give me feedback about your experience. The text might not be perfect,
but it is the value of such interactivity that interests me.

 

We are close to having direct access from R sorted. If you have downloaded
the GitHub version of BrailleR before now then you will need to do so again.
I will not release this experimental work to the CRAN version until June.
Once you have re-installed BrailleR from GitHub, then you will be able to
run the command:

    MakeAccessibleSVG(hist(airquality$Ozone, xlab="Ozone"))

N.B. you must be using an SVG-friendly browser as your default browser for
this to be any use. Internet explorer does not display SVG and it is a
Microsoft problem, not a BrailleR problem.

 

Thanks in advance for any feedback you can offer.

 

Cheers,

Jonathan

 



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