active pdf/annotated visualization RFC

Paul Murrell
Wed, 06 Nov 2002 15:01:59 +1300


In terms of related plans:  over the (southern) summer I plan to have a
student take a look at producing SVG output from R.  There are many
possibilities for embedding metadata within such output.  

You may want to talk to Naras (Balasubramanian Narasimhan who has worked on the SVG stuff a bit already
and has thought a bit about how to include the metadata.


"Vincent J. Carey, Jr." wrote:
> How can R users take advantage of the "active PDF" paradigm
> for annotation of statistical graphics?  The basic objective
> is to take a small number of locations on a graph and
> hyperlink them -- add persistent information to the pdf
> rendering of the graph so that when the user clicks
> on the location, a browser is (started if necessary and) pointed
> to a URL specified by the persistent information.
> One possibility is to generate pdf graphical documents with the
> existing PDF driver in R and use external software to introduce
> active links.  We don't know at present what external software
> would be useful for this.
> Another possibility is to establish a "text" like function for
> use with the pdf driver that allows the user to give vectors
> of x and y coordinates and a vector of metadata to be bound to the
> coordinates as active link targets.
> --
> This is a request for advice/comments/plans related to
> annotated visualizations created with R but exportable to
> non-R users.  Other graphical formats and
> languages not mentioned here may be relevant and comments
> to this effect are welcome.
> --
> ---
> Vince Carey, PhD
> Ass't Prof Med (Biostatistics)
> Harvard Medical School
> Channing Laboratory - ph 6175252265 fa 6177311541 cell 8572126768
> 181 Longwood Ave Boston MA 02115 USA
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Dr Paul Murrell
Department of Statistics
The University of Auckland
Private Bag 92019
New Zealand
64 9 3737599 x5392
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