javascript - How do I access one field in a JSON file used for force directed? -


i developing forced network based on http://bl.ocks.org/mbostock/4062045#index.html using json file of following format:

{"organizations":[    {"member":       {"name":"green 13",        "target":"tcan",        "category":"community group",        "source":"g13"}    }, ....

as can see root object "organizations" , top level child object "member". (the json file has in format because generate drupal module.)

i extract member array using code:

var links=members.organizations.map(function(members) {     return members.member; });

the network works correctly unable use category attribute set colour of circles.

how access "category" use in "fill" , "name" "text"? (at present, "text" uses "source" value.)

the problem you're not putting category nodes you're generating. so, modify code generates nodes this:

links.foreach(function(link) {   link.source = nodes[link.source] || (nodes[link.source] = {name: link.name, category: link.category});   link.target = nodes[link.target] || (nodes[link.target] = {name: link.name, category: link.category}); });

this allow color nodes depending on category , adds correct text. complete example here.

the example doesn't quite work -- names of nodes , source/target strings don't match , messes things up. example, source "g13" doesn't exist (should "green 13"?) , neither "trsg".


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