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Tree colors (sunburst, DBpedia)
Raw
README.md

A partial implementation of the tree color scheme proposed in Tennekes, Jonge 2014, applied to a sunburst representation of the canonically sorted DBpedia hierarchical ontology.

Hue is used to differentiate subtrees, while luminance (and chroma) to encode depth.

This implementation misses the five-element permutation feature described in the paper above. The effect on the visualization is that similar pairs of different colors are repeated one after each other.

As in the original work, the effect of hue is mainly limited to the first levels. The case of DBpedia is especially bad, because of the high number of nodes at the first level.

Raw
dbpedia_canonical.json
{
"name": "http://www.w3.org/2002/07/owl#Thing",
"leaf_count": 533,
"children": [
{
"name": "http://dbpedia.org/ontology/Place",
"leaf_count": 9175,
"children": [
{
"name": "http://dbpedia.org/ontology/PopulatedPlace",
"leaf_count": 6,
"children": [
{
"name": "http://dbpedia.org/ontology/Region",
"leaf_count": 2,
"children": [
{
"name": "http://dbpedia.org/ontology/AdministrativeRegion",
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"children": [
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"name": "http://dbpedia.org/ontology/ClericalAdministrativeRegion",
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"children": [
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"name": "http://dbpedia.org/ontology/Diocese",
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}
]
},
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"name": "http://dbpedia.org/ontology/GovernmentalAdministrativeRegion",
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"children": [
{
"name": "http://dbpedia.org/ontology/Department",
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"name": "http://dbpedia.org/ontology/District",
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{
"name": "http://dbpedia.org/ontology/Municipality",
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{
"name": "http://dbpedia.org/ontology/Province",
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}
]
}
]
}
]
},
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"name": "http://dbpedia.org/ontology/Settlement",
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"name": "http://dbpedia.org/ontology/Village",
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}
]
},
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},
{
"name": "http://dbpedia.org/ontology/Country",
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"name": "http://dbpedia.org/ontology/Continent",
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"children": [
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"name": "http://dbpedia.org/ontology/Stream",
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"children": [
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"name": "http://dbpedia.org/ontology/Canal",
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"name": "http://dbpedia.org/ontology/RoadTunnel",
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"name": "http://dbpedia.org/ontology/RoadJunction",
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{
"name": "http://dbpedia.org/ontology/RailwayTunnel",
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{
"name": "http://dbpedia.org/ontology/WaterwayTunnel",
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]
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"name": "http://dbpedia.org/ontology/RailwayStation",
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]
},
{
"name": "http://dbpedia.org/ontology/Airport",
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},
{
"name": "http://dbpedia.org/ontology/Dam",
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{
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{
"name": "http://dbpedia.org/ontology/Museum",
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{
"name": "http://dbpedia.org/ontology/ReligiousBuilding",
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{
"name": "http://dbpedia.org/ontology/Hospital",
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},
{
"name": "http://dbpedia.org/ontology/ShoppingMall",
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{
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"name": "http://dbpedia.org/ontology/Skyscraper",
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]
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{
"name": "http://dbpedia.org/ontology/Tower",
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"children": [
{
"name": "http://dbpedia.org/ontology/Lighthouse",
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]
},
{
"name": "http://dbpedia.org/ontology/Venue",
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"name": "http://dbpedia.org/ontology/Theatre",
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}
]
},
{
"name": "http://dbpedia.org/ontology/AmusementParkAttraction",
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"children": [
{
"name": "http://dbpedia.org/ontology/RollerCoaster",
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},
{
"name": "http://dbpedia.org/ontology/WaterRide",
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}
]
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{
"name": "http://dbpedia.org/ontology/MilitaryStructure",
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{
"name": "http://dbpedia.org/ontology/Tunnel",
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{
"name": "http://dbpedia.org/ontology/Mill",
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]
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{
"name": "http://dbpedia.org/ontology/SportFacility",
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{
"name": "http://dbpedia.org/ontology/RaceTrack",
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"name": "http://dbpedia.org/ontology/Racecourse",
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{
"name": "http://dbpedia.org/ontology/Stadium",
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{
"name": "http://dbpedia.org/ontology/GolfCourse",
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{
"name": "http://dbpedia.org/ontology/CricketGround",
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{
"name": "http://dbpedia.org/ontology/WorldHeritageSite",
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{
"name": "http://dbpedia.org/ontology/SiteOfSpecialScientificInterest",
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{
"name": "http://dbpedia.org/ontology/SkiArea",
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{
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{
"name": "http://dbpedia.org/ontology/Monument",
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{
"name": "http://dbpedia.org/ontology/WineRegion",
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{
"name": "http://dbpedia.org/ontology/Mine",
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}
]
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{
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"children": [
{
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"children": [
{
"name": "http://dbpedia.org/ontology/Athlete",
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"children": [
{
"name": "http://dbpedia.org/ontology/MotorsportRacer",
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"children": [
{
"name": "http://dbpedia.org/ontology/RacingDriver",
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"children": [
{
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{
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]
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{
"name": "http://dbpedia.org/ontology/MotorcycleRider",
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"children": [
{
"name": "http://dbpedia.org/ontology/SpeedwayRider",
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}
]
}
]
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]
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]
},
{
"name": "http://dbpedia.org/ontology/VolleyballPlayer",
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"children": [
{
"name": "http://dbpedia.org/ontology/BeachVolleyballPlayer",
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}
]
},
{
"name": "http://dbpedia.org/ontology/SnookerPlayer",
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"name": "http://dbpedia.org/ontology/SnookerChamp",
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]
},
{
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{
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{
"name": "http://dbpedia.org/ontology/IceHockeyPlayer",
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{
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{
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{
"name": "http://dbpedia.org/ontology/BasketballPlayer",
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{
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{
"name": "http://dbpedia.org/ontology/Cyclist",
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{
"name": "http://dbpedia.org/ontology/TennisPlayer",
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{
"name": "http://dbpedia.org/ontology/Swimmer",
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{
"name": "http://dbpedia.org/ontology/GaelicGamesPlayer",
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{
"name": "http://dbpedia.org/ontology/FigureSkater",
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{
"name": "http://dbpedia.org/ontology/MartialArtist",
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{
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{
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{
"name": "http://dbpedia.org/ontology/ChessPlayer",
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{
"name": "http://dbpedia.org/ontology/Gymnast",
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{
"name": "http://dbpedia.org/ontology/PokerPlayer",
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{
"name": "http://dbpedia.org/ontology/BadmintonPlayer",
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{
"name": "http://dbpedia.org/ontology/Curler",
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{
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{
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{
"name": "http://dbpedia.org/ontology/DartsPlayer",
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{
"name": "http://dbpedia.org/ontology/TableTennisPlayer",
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{
"name": "http://dbpedia.org/ontology/HorseRider",
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{
"name": "http://dbpedia.org/ontology/SquashPlayer",
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{
"name": "http://dbpedia.org/ontology/LacrossePlayer",
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{
"name": "http://dbpedia.org/ontology/Skater",
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{
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{
"name": "http://dbpedia.org/ontology/NetballPlayer",
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{
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]
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{
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{
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{
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{
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{
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{
"name": "http://dbpedia.org/ontology/TelevisionHost",
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]
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{
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{
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{
"name": "http://dbpedia.org/ontology/Monarch",
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
"name": "http://dbpedia.org/ontology/Astronaut",
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"leaf_count": 1
}
]
},
{
"name": "http://dbpedia.org/ontology/CelestialBody",
"leaf_count": 1,
"children": [
{
"name": "http://dbpedia.org/ontology/Asteroid",
"leaf_count": 17086
},
{
"name": "http://dbpedia.org/ontology/Planet",
"leaf_count": 11894
},
{
"name": "http://dbpedia.org/ontology/Star",
"leaf_count": 3250
},
{
"name": "http://dbpedia.org/ontology/Galaxy",
"leaf_count": 635
}
]
},
{
"name": "http://dbpedia.org/ontology/ChemicalSubstance",
"leaf_count": 1,
"children": [
{
"name": "http://dbpedia.org/ontology/ChemicalCompound",
"leaf_count": 9427
},
{
"name": "http://dbpedia.org/ontology/Mineral",
"leaf_count": 1198
}
]
},
{
"name": "http://dbpedia.org/ontology/Medicine",
"leaf_count": 0,
"children": [
{
"name": "http://dbpedia.org/ontology/Disease",
"leaf_count": 6078
}
]
},
{
"name": "http://dbpedia.org/ontology/Name",
"leaf_count": 0,
"children": [
{
"name": "http://dbpedia.org/ontology/GivenName",
"leaf_count": 3345
},
{
"name": "http://dbpedia.org/ontology/Surname",
"leaf_count": 1084
}
]
},
{
"name": "http://dbpedia.org/ontology/TimePeriod",
"leaf_count": 83910,
"children": [
{
"name": "http://dbpedia.org/ontology/Year",
"leaf_count": 2037
},
{
"name": "http://dbpedia.org/ontology/YearInSpaceflight",
"leaf_count": 60
}
]
},
{
"name": "http://dbpedia.org/ontology/Satellite",
"leaf_count": 0,
"children": [
{
"name": "http://dbpedia.org/ontology/ArtificialSatellite",
"leaf_count": 1909
}
]
},
{
"name": "http://dbpedia.org/ontology/SportCompetitionResult",
"leaf_count": 0,
"children": [
{
"name": "http://dbpedia.org/ontology/OlympicResult",
"leaf_count": 765
}
]
},
{
"name": "http://dbpedia.org/ontology/AnatomicalStructure",
"leaf_count": 1780,
"children": [
{
"name": "http://dbpedia.org/ontology/Brain",
"leaf_count": 550
},
{
"name": "http://dbpedia.org/ontology/Bone",
"leaf_count": 415
},
{
"name": "http://dbpedia.org/ontology/Artery",
"leaf_count": 368
},
{
"name": "http://dbpedia.org/ontology/Nerve",
"leaf_count": 336
},
{
"name": "http://dbpedia.org/ontology/Muscle",
"leaf_count": 280
},
{
"name": "http://dbpedia.org/ontology/Vein",
"leaf_count": 234
},
{
"name": "http://dbpedia.org/ontology/Ligament",
"leaf_count": 194
},
{
"name": "http://dbpedia.org/ontology/Embryology",
"leaf_count": 188
},
{
"name": "http://dbpedia.org/ontology/Lymph",
"leaf_count": 81
}
]
},
{
"name": "http://dbpedia.org/ontology/GeneLocation",
"leaf_count": 0,
"children": [
{
"name": "http://dbpedia.org/ontology/HumanGeneLocation",
"leaf_count": 9
},
{
"name": "http://dbpedia.org/ontology/MouseGeneLocation",
"leaf_count": 8
}
]
},
{
"name": "http://dbpedia.org/ontology/CareerStation",
"leaf_count": 643162
},
{
"name": "http://dbpedia.org/ontology/PersonFunction",
"leaf_count": 126796
},
{
"name": "http://www.opengis.net/gml/_Feature",
"leaf_count": 14001
},
{
"name": "http://dbpedia.org/ontology/Language",
"leaf_count": 7928
},
{
"name": "http://dbpedia.org/ontology/Sales",
"leaf_count": 6626
},
{
"name": "http://dbpedia.org/ontology/Drug",
"leaf_count": 5590
},
{
"name": "http://dbpedia.org/ontology/EthnicGroup",
"leaf_count": 4595
},
{
"name": "http://dbpedia.org/ontology/Award",
"leaf_count": 3803
},
{
"name": "http://dbpedia.org/ontology/Colour",
"leaf_count": 1019
},
{
"name": "http://dbpedia.org/ontology/Holiday",
"leaf_count": 938
},
{
"name": "http://dbpedia.org/ontology/Currency",
"leaf_count": 355
},
{
"name": "http://dbpedia.org/ontology/SnookerWorldRanking",
"leaf_count": 34
},
{
"name": "http://dbpedia.org/ontology/Swarm",
"leaf_count": 2
},
{
"name": "http://dbpedia.org/ontology/Competition",
"leaf_count": 1
},
{
"name": "http://dbpedia.org/ontology/List",
"leaf_count": 1
}
]
}
Raw
index.coffee
treehue = (node, hue_range, fraction, rev) ->
# 0 <= hue_range[0] <= hue_range[1]
r = hue_range[1]-hue_range[0]
node.hue = hue_range[0]+r/2
if node.children?
n = node.children.length
ri = r/n
child_hue_ranges = []
half_n = Math.floor(n/2)
for i in [0...half_n]
child_hue_ranges.push [
hue_range[0] + ri*i + ri*(1-fraction)/2,
hue_range[0] + ri*(i+1) - ri*(1-fraction)/2
]
child_hue_ranges.push [
hue_range[0] + ri*(i+half_n) + ri*(1-fraction)/2,
hue_range[0] + ri*(i+1+half_n) - ri*(1-fraction)/2
]
# if n is odd we need to push the middle item
if n%2 is 1
child_hue_ranges.push [
hue_range[0] + ri*(half_n) + ri*(1-fraction)/2,
hue_range[0] + ri*(1+half_n) - ri*(1-fraction)/2
]
child_hue_ranges.reverse() if rev
for child, i in node.children
treehue(child, child_hue_ranges[i], fraction, i % 2 is 0)
treelum = d3.scale.linear()
.range([80,10])
treechroma = d3.scale.sqrt()
.range([0,90])
# layout, behaviors and scales
RADIUS = 250
partition = d3.layout.partition()
.sort(null)
.size([2 * Math.PI, RADIUS * RADIUS])
.value((node) -> node.leaf_count)
arc = d3.svg.arc()
.startAngle((d) -> d.x )
.endAngle((d) -> d.x + d.dx )
.innerRadius((d) -> Math.sqrt(d.y) )
.outerRadius((d) -> Math.sqrt(d.y + d.dy) )
svg = d3.select('svg')
width = svg.node().getBoundingClientRect().width
height = svg.node().getBoundingClientRect().height
# translate the viewBox to have (0,0) at the center of the vis
svg
.attr
viewBox: "#{-width/2} #{-height/2} #{width} #{height}"
# append a group for zoomable content
zoomable_layer = svg.append('g')
# define a zoom behavior
zoom = d3.behavior.zoom()
.scaleExtent([1,10]) # min-max zoom
.on 'zoom', () ->
# GEOMETRIC ZOOM
zoomable_layer
.attr
transform: "translate(#{zoom.translate()})scale(#{zoom.scale()})"
# bind the zoom behavior to the main SVG
svg.call(zoom)
# group the visualization
vis = zoomable_layer.append('g')
d3.json 'dbpedia_canonical.json', (tree) ->
treehue(tree, [0,360], 0.7)
treelum
.domain([0, 5])
treechroma
.domain([0, 5])
vis.datum(tree)
nodes = vis.selectAll('.node')
.data((t) -> partition.nodes(t))
enter_nodes = nodes.enter().insert('path','path')
.attr
class: 'node'
d: arc
fill: (n) -> d3.hcl(n.hue, treechroma(n.depth), treelum(n.depth))
enter_nodes.append('title')
.text((node) -> node.name.split('/').reverse()[0])
vis.append('text')
.text((tree) -> tree.name.split('/').reverse()[0])
.attr
class: 'label'
dy: '0.35em'
Raw
index.css
svg {
background: white;
}
.node {
vector-effect: non-scaling-stroke;
stroke: white;
stroke-width: 1;
}
.node:hover {
fill: #FC3;
}
.label {
pointer-events: none;
fill: #444;
text-anchor: middle;
font-family: sans-serif;
font-size: 28px;
text-shadow: -1px 0 white, 0 1px white, 1px 0 white, 0 -1px white;
}
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Tree colors (sunburst, DBpedia)</title>
<link type="text/css" href="index.css" rel="stylesheet"/>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="//wafi.iit.cnr.it/webvis/libs/jigmaps/zip.js"></script>
<script src="//wafi.iit.cnr.it/webvis/libs/jigmaps/tree_utils.js"></script>
</head>
<body>
<svg height="500" width="960"></svg>
<script src="index.js"></script>
</body>
</html>
Raw
index.js
// Generated by CoffeeScript 1.4.0
(function() {
var RADIUS, arc, height, partition, svg, treechroma, treehue, treelum, vis, width, zoom, zoomable_layer;
treehue = function(node, hue_range, fraction, rev) {
var child, child_hue_ranges, half_n, i, n, r, ri, _i, _j, _len, _ref, _results;
r = hue_range[1] - hue_range[0];
node.hue = hue_range[0] + r / 2;
if (node.children != null) {
n = node.children.length;
ri = r / n;
child_hue_ranges = [];
half_n = Math.floor(n / 2);
for (i = _i = 0; 0 <= half_n ? _i < half_n : _i > half_n; i = 0 <= half_n ? ++_i : --_i) {
child_hue_ranges.push([hue_range[0] + ri * i + ri * (1 - fraction) / 2, hue_range[0] + ri * (i + 1) - ri * (1 - fraction) / 2]);
child_hue_ranges.push([hue_range[0] + ri * (i + half_n) + ri * (1 - fraction) / 2, hue_range[0] + ri * (i + 1 + half_n) - ri * (1 - fraction) / 2]);
}
if (n % 2 === 1) {
child_hue_ranges.push([hue_range[0] + ri * half_n + ri * (1 - fraction) / 2, hue_range[0] + ri * (1 + half_n) - ri * (1 - fraction) / 2]);
}
if (rev) {
child_hue_ranges.reverse();
}
_ref = node.children;
_results = [];
for (i = _j = 0, _len = _ref.length; _j < _len; i = ++_j) {
child = _ref[i];
_results.push(treehue(child, child_hue_ranges[i], fraction, i % 2 === 0));
}
return _results;
}
};
treelum = d3.scale.linear().range([80, 10]);
treechroma = d3.scale.sqrt().range([0, 90]);
RADIUS = 250;
partition = d3.layout.partition().sort(null).size([2 * Math.PI, RADIUS * RADIUS]).value(function(node) {
return node.leaf_count;
});
arc = d3.svg.arc().startAngle(function(d) {
return d.x;
}).endAngle(function(d) {
return d.x + d.dx;
}).innerRadius(function(d) {
return Math.sqrt(d.y);
}).outerRadius(function(d) {
return Math.sqrt(d.y + d.dy);
});
svg = d3.select('svg');
width = svg.node().getBoundingClientRect().width;
height = svg.node().getBoundingClientRect().height;
svg.attr({
viewBox: "" + (-width / 2) + " " + (-height / 2) + " " + width + " " + height
});
zoomable_layer = svg.append('g');
zoom = d3.behavior.zoom().scaleExtent([1, 10]).on('zoom', function() {
return zoomable_layer.attr({
transform: "translate(" + (zoom.translate()) + ")scale(" + (zoom.scale()) + ")"
});
});
svg.call(zoom);
vis = zoomable_layer.append('g');
d3.json('dbpedia_canonical.json', function(tree) {
var enter_nodes, nodes;
treehue(tree, [0, 360], 0.7);
treelum.domain([0, 5]);
treechroma.domain([0, 5]);
vis.datum(tree);
nodes = vis.selectAll('.node').data(function(t) {
return partition.nodes(t);
});
enter_nodes = nodes.enter().insert('path', 'path').attr({
"class": 'node',
d: arc,
fill: function(n) {
return d3.hcl(n.hue, treechroma(n.depth), treelum(n.depth));
}
});
enter_nodes.append('title').text(function(node) {
return node.name.split('/').reverse()[0];
});
return vis.append('text').text(function(tree) {
return tree.name.split('/').reverse()[0];
}).attr({
"class": 'label',
dy: '0.35em'
});
});
}).call(this);
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