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, I guess the initial question should be is there
any(strong) desire for such functionality or is it only me.
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' },
This would obviously involve some form of tree based representation for
this form of data 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/.
Neil
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