Firstly I'd just like to add to the general "well-done" for releasing such a
cracking bit of software...
I was wondering what's the likelihood of Exhibit being able to support
hierarchical data?
Or I guess the question could be put as:
a) is there any(strong) desire for such functionality, or is it only me.
b) does anyone have any pointers to how such functionality might be (easily)
implemented.
As an example the Dojo jsonitemstore can handle the following hierarchical data
format:
{ identifier:'label',
items:[
{ label:'Africa', type:'continent', countries:[
{ label:'Egypt', type:'country', capital:'Cairo' },
{ label:'Kenya', type:'country', capital:'Nairobi' },
{ label:'Sudan', type:'country', capital:'Khartoum' }]},
{ label:'North America', type:'continent', countries:[
{ label:'Canada', type:'country', population:'33 million', cities:[
{ label:'Toronto', type:'city', population:'2.5 million' }]}]}
]};
actually it's possible to have a 'cleaner' representation using the 'reference'
keyword, e.g.
{ identifier: 'name',
items: [
{ name:'Africa', type:'continent',
children:[{reference:'Egypt'}, {reference:'Kenya'},
{reference:'Sudan'}] },
{ name:'Egypt', type:'country' },
{ name:'Kenya', type:'country',
children:[{reference:'Nairobi'}, {reference:'Mombasa'}] },
{ name:'Nairobi', type:'city' },
{ name:'Mombasa', type:'city' },
{ name:'Sudan', type:'country',
children:{reference:'Khartoum'} },
{ name:'Khartoum', type:'city' },
In Exhibit, handling such data would obviously involve some form of tree based
representation in the table columns, tiles and facets, but would allow some
nice hierarchical faceted browsing as is shown on the VRA Core browsing
possible in the demo at http://simile.mit.edu/rvc/.
Currently I'm displaying the data by flattening the tree; having a column for
each level of the tree. However this looses the semantic structure of the tree
to guide the user and is confusing if the node labels in the tree are not
unique.
Neil
_________________________________________________________________
The next generation of MSN Hotmail has arrived - Windows Live Hotmail
http://www.newhotmail.co.uk
_______________________________________________
General mailing list
[email protected]
http://simile.mit.edu/mailman/listinfo/general
