Hi Frederic. You've posed an interesting problem that doesn't have an
obvious solution right now. Exhibit is intended to display a collection
of *items*. And at the moment, the sizeKey is used to define a size
associated with *individual items*. So it is perfectly plausible to
associate a size with each *institution* based on how many co
publications it has. That would work out well, except that you would
then be restricted to filtering *institutions*. It seems instead you
want your items to be articles. And you want size to be an
*aggregation* function that totals the number of items sharing a single
point on the map. Right now there's no way to do that. It is an
interesting feature and I will give some thought to how it might be
implemented in decent generality, but I don't know when thinking will
turn into code.
On 7/18/2014 6:46 PM, Frederic_L wrote:
Hello,
I am currently building an exhibit with the French-American scientific
co-publications in 2014. The "work in progress" exhibit is available
here:
http://www.france-science.org/cartographie/carto_copublications_US.html
I am using the Exhibit map view to display the copublications on a US
map, using the sizekey to modifiy the size of the buble corresponding
to the number of copublications for each location/institution.
It is*working well as long as a copublication involves only one US
institution (one sizekey per item)* and as long as the sizekey is the
same for each location in the .js file (for ex: the sizekey for MIT is
always equals to 177 in every item with the MIT location). so I only
have one location/sizekey for that item
The problem is that in reality, *one copublication* involves most of
the time *several US Institutions*. So far, the workaround I found was
to duplicate the items/copublications involving several institutions
into items with only one US institutions each. It is working quite
well, but the side effect is that the *number of copublication on the
Exhibit is bigger than the actual number of copublications*.
*Is there a way to make the sizecoder work with items with multiple
locations?*
Optional question, does anyone know a way to resize the plot/bubble
according to the filtering (For example, if I select the Field
"Physics", the sizekey of the MIT should be 74 instead of 177 without
this filter)?
<https://lh5.googleusercontent.com/-m0c_Z3MTg8Q/U8mcmbSCIPI/AAAAAAAACvE/5ffq2DT58-Q/s1600/carto_copublis.jpg>
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