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netmap.js.coffee
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# requires D3!
class LittlesisApi
constructor: (key) ->
@key = key
@base_url = "//api.littlesis.org/"
entities_and_rels_url: (entity_ids) ->
@base_url + "map/entities.json?entity_ids=" + entity_ids.join(",") + "&_key=" + @key
entities_and_rels: (entity_ids, callback) ->
$.ajax({
url: @entities_and_rels_url(entity_ids),
success: callback,
error: -> alert("There was an error retrieving data from the API")
dataType: "json"
});
get_add_entity_data: (entity_id, entity_ids, callback) ->
$.ajax({
url: @base_url + "map/addEntityData.json",
data: { "entity_id": entity_id, "entity_ids": entity_ids },
success: callback,
error: -> alert("There was an error retrieving data from the API"),
type: "GET",
dataType: "json"
})
get_add_related_entities_data: (entity_id, num, entity_ids, rel_ids, include_cats = [], callback) ->
$.ajax({
url: @base_url + "map/addRelatedEntitiesData.json",
data: { "entity_id": entity_id, "num": num, "entity_ids": entity_ids, "rel_ids": rel_ids, "include_cat_ids": include_cats },
success: callback,
error: -> alert("There was an error retrieving data from the API"),
type: "GET",
dataType: "json"
})
get_add_interlocks_data: (entity1_id, entity2_id, entity_ids, callback) ->
$.ajax({
url: @base_url + "map/addInterlocksData.json",
data: { "entity1_id": entity1_id, "entity2_id": entity2_id, "entity_ids": entity_ids },
success: callback,
error: -> alert("There was an error retrieving data from the API"),
type: "GET",
dataType: "json"
})
search_entities: (q, callback) ->
$.ajax({
url: @base_url + "map/searchEntities.json",
data: { "q": q },
success: callback,
error: -> alert("There was an error retrieving data from the API"),
type: "GET",
dataType: "json"
})
create_map: (width, height, user_id, out_data, callback) ->
$.ajax({
url: @base_url + "map.json",
data: { "width": width, "height": height, "user_id": user_id, "data" : JSON.stringify(out_data) },
success: callback,
error: -> alert("There was an error sending data to the API"),
type: "POST",
dataType: "json"
})
get_map: (id, callback) ->
$.ajax({
url: @base_url + "map/#{id}.json",
success: callback,
error: -> alert("There was an error retrieving data from the API"),
dataType: "json"
})
update_map: (id, width, height, out_data, callback) ->
$.ajax({
url: @base_url + "map/#{id}/update.json",
data: { "width": width, "height": height, "data" : JSON.stringify(out_data) },
success: callback,
error: -> alert("There was an error sending data to the API"),
type: "POST",
dataType: "json"
})
class Netmap
constructor: (width, height, parent_selector, key, clean_mode = true, zoom_enabled = true) ->
@width = width
@height = height
@min_zoom = 0.1
@max_zoom = 2
@parent_selector = parent_selector
@clean_mode = clean_mode
@zoom_enabled = zoom_enabled
@init_svg()
@force_enabled = false
@entity_background_opacity = 0.6
@entity_background_color = "#fff"
@entity_background_corner_radius = 5
@distance = 300
@api = new LittlesisApi(key)
@init_callbacks()
@current_only = false
@default_rels = false
@straight_rels = false
@current_rels = false
@hide_images = false
@mode = 'default'
@gravity = 0.3
@charge = -5000
@entity_links = true
@bg_color = null
@multiple_select = false
init_svg: ->
@svg = d3.select(@parent_selector)
.append("svg")
.attr("version", "1.1")
.attr("xmlns", "http://www.w3.org/2000/svg")
.attr("xmlns:xmlns:xlink", "http://www.w3.org/1999/xlink")
.attr("id", "svg")
.attr("width", if @width? then @width else "100%")
.attr("height", if @height? then @height else "100%")
zoom = @svg.append('g')
.attr("id", "zoom")
unless @clean_mode
zoom.append('line')
.attr('x1', -8)
.attr('y1', 0)
.attr('x2', 8)
.attr('y2', 0)
.attr('stroke', '#ccc')
zoom.append('line')
.attr('x1', 0)
.attr('y1', -8)
.attr('x2', 0)
.attr('y2', 8)
.attr('stroke', '#ccc')
marker1 = @svg.append("marker")
.attr("id", "marker1")
.attr("viewBox", "0 -5 10 10")
.attr("refX", 8)
.attr("refY", 0)
.attr("markerWidth", 6)
.attr("markerHeight", 6)
.attr("orient", "auto")
.append("path")
.attr("d", "M0,-5L10,0L0,5")
marker2 = @svg.append("marker")
.attr("id", "marker2")
.attr("viewBox", "-10 -5 10 10")
.attr("refX", -8)
.attr("refY", 0)
.attr("markerWidth", 6)
.attr("markerHeight", 6)
.attr("orient", "auto")
.append("path")
.attr("d", "M0,-5L-10,0L0,5")
@init_gradients()
@zoom = d3.behavior.zoom()
@zoom.scaleExtent([@min_zoom, @max_zoom])
t = this
zoom_func = ->
t.update_zoom()
trans = d3.event.translate
scale = d3.event.scale
zoom.attr("transform", "translate(" + trans + ")" + " scale(" + scale + ")")
if @zoom_enabled
@svg.call(@zoom.on("zoom", zoom_func))
init_gradients: ->
defs = @svg.append("defs")
grad = defs.append("radialGradient")
.attr("id", "gradient-left")
.attr("cx", 1)
.attr("cy", 0.5)
grad.append("stop")
.attr("offset", "0%")
.attr("stop-color", "rgba(0, 0, 0, 0)")
grad.append("stop")
.attr("offset", "80%")
.attr("stop-color", "rgba(255, 0, 255, 0.1)")
grad.append("stop")
.attr("offset", "100%")
.attr("stop-color", "rgba(255, 0, 255, 0.2)")
grad = defs.append("radialGradient")
.attr("id", "gradient-right")
.attr("cx", 0)
.attr("cy", 0.5)
grad.append("stop")
.attr("offset", "0%")
.attr("stop-color", "rgba(0, 0, 0, 0)")
grad.append("stop")
.attr("offset", "80%")
.attr("stop-color", "rgba(255, 0, 255, 0.1)")
grad.append("stop")
.attr("offset", "100%")
.attr("stop-color", "rgba(255, 0, 255, 0.2)")
grad = defs.append("linearGradient")
.attr("id", "gradient-middle-magenta")
grad.append("stop")
.attr("offset", "0%")
.attr("stop-color", "rgba(0, 0, 0, 0)")
grad.append("stop")
.attr("offset", "50%")
.attr("stop-color", "rgba(255, 0, 255, 0.3)")
grad.append("stop")
.attr("offset", "100%")
.attr("stop-color", "rgba(0, 0, 0, 0)")
grad = defs.append("linearGradient")
.attr("id", "gradient-middle-green")
grad.append("stop")
.attr("offset", "0%")
.attr("stop-color", "rgba(0, 0, 0, 0)")
grad.append("stop")
.attr("offset", "50%")
.attr("stop-color", "rgba(0, 255, 0, 0.3)")
grad.append("stop")
.attr("offset", "100%")
.attr("stop-color", "rgba(0, 0, 0, 0)")
compute_graph_center: ->
entities = @entities()
xs = entities.map((e) -> if e.x then e.x else 0)
ys = entities.map((e) -> if e.y then e.y else 0)
{
x: (Math.min.apply(null, xs) + Math.max.apply(null, xs)) / 2
y: (Math.min.apply(null, ys) + Math.max.apply(null, ys)) / 2
}
svg_size: ->
{ x: $('#svg').width(), y: $('#svg').height() }
svg_center: ->
size = @svg_size()
{ x: Math.floor(size.x/2), y: Math.floor(size.y/2) }
auto_center: (x = true, y = true) ->
if @centered_coordinates()
center = @svg_center()
@zoom.translate([center.x, center.y])
else
graph_center = @compute_graph_center()
svg_center = @svg_center()
shift = @zoom.translate()
dx = if x then svg_center.x - graph_center.x - shift[0] else 0
dy = if y then svg_center.y - graph_center.y - shift[1] else 0
@shift_map(dx, dy)
recenter: ->
shift = @compute_graph_center()
@_data.entities = @_data.entities.map((e) ->
e.x += -shift.x
e.y += -shift.y
e
)
@_data.texts = @_data.texts.map((t) ->
t.x += -shift.x
t.y += -shift.y
t
)
@build()
shift_map: (dx, dy) ->
dx ?= 0
dy ?= 0
@zoom.translate([@zoom.translate()[0] + dx, @zoom.translate()[1] + dy])
@update_zoom()
zoom_by: (scale) ->
centered = @centered_coordinates()
svg_size = @svg_size()
new_scale = @zoom.scale() * scale
new_scale = @min_zoom if new_scale < @min_zoom
new_scale = @max_zoom if new_scale > @max_zoom
x_diff = (if centered then 0 else (new_scale - @zoom.scale()) * svg_size.x)
y_diff = (if centered then 0 else (new_scale - @zoom.scale()) * svg_size.y)
@zoom.scale(new_scale)
@zoom.translate([@zoom.translate()[0]-x_diff/2, @zoom.translate()[1]-y_diff/2])
@update_zoom()
round_scale: ->
@zoom.scale(Math.round(@zoom.scale() * 1000) / 1000)
update_zoom: ->
@round_scale()
d3.select("#zoom").attr("transform", "translate(" + @zoom.translate() + ") scale(" + @zoom.scale() + ")")
reset_zoom: ->
@zoom.scale(1)
@auto_center()
@update_zoom()
set_translate: (x, y) ->
@zoom.translate([x, y])
@update_zoom()
set_translate_x: (x) ->
@zoom.translate([x, @zoom.translate()[1]])
@update_zoom()
set_translate_y: (y) ->
@zoom.translate([@zoom.translate()[0], y])
@update_zoom()
get_scale: ->
@zoom.scale()
get_translate: ->
@zoom.translate()
set_default_rels: (val = true) ->
@default_rels = val
# @rels().forEach((rel) ->
# rel.x1 = null
# rel.y1 = null
# )
@update_positions()
set_all_rels_to_current: ->
@rels().forEach((rel) ->
rel.is_current = 1
)
@update_positions()
init_callbacks: ->
t = this
# so we know where the mouse is on keydown
$(window).on("mousemove", (e) ->
t.mouse_x = e.pageX
t.mouse_y = e.pageY
)
@keymap = {}
$(document).on("keyup", (e) ->
t.keymap[e.keyCode] = false
)
$(document).on("keydown", (e) ->
t.keymap[e.keyCode] = true
unless t.clean_mode
if e.ctrlKey or e.altKey
# backspace, delete, "D", or "d"
if t.keymap[8] or t.keymap[46] or t.keymap[68] or t.keymap[100]
rebuild = false
selected = $(".selected").length > 0
for d in d3.selectAll($(".rel.selected")).data()
t.remove_rel(d.id)
rebuild = true
for d in d3.selectAll($(".entity.selected")).data()
t.remove_entity(d.id)
rebuild = true
for d in d3.selectAll($(".text.selected")).data()
t.remove_text(d.id)
rebuild = true
t.build() if rebuild
$(window).trigger('selection') if selected
e.preventDefault() if selected
# "N" or "n"
if t.keymap[78] or t.keymap[110]
if $(t.parent_selector + ":hover").length > 0
$(window).trigger('toggle_add_node_form')
# "E" or "e"
if t.keymap[69] or t.keymap[101]
if $(t.parent_selector + ':hover').length > 0
data = d3.selectAll('.entity.selected').data()
if data.length > 0
$(window).trigger('toggle_add_edge_form', data[0])
# "R" or "r"
if t.keymap[82] or t.keymap[114]
if $(t.parent_selector + ':hover').length > 0
data = d3.selectAll('.entity.selected').data()
if data.length > 0
t.toggle_add_related_entities_form(data[0].id)
# "T" or "t"
if t.keymap[84] or t.keymap[116]
if $(t.parent_selector + ":hover").length > 0
$(window).trigger('toggle_add_text_form')
# "I" or "i"
if t.keymap[73] or t.keymap[105]
if $(t.parent_selector + ':hover').length > 0
data = d3.selectAll('.entity.selected').data()
if data.length > 0 and data[0].id.toString().indexOf('x') == -1
$(window).trigger('toggle_add_interlocks_form', data[0])
# "="
if t.keymap[61] or t.keymap[187]
t.zoom_by(1.2)
# "-"
if t.keymap[173] or t.keymap[189]
t.zoom_by(0.83333333333333)
# "0"
if t.keymap[48]
t.reset_zoom()
# "S" or "s"
if t.keymap[83] or t.keymap[115]
t.deselect_all()
e = $('.entity')[0]
$(window).trigger('selection', e) if e
)
toggle_add_entity_form: ->
form = $("#netmap_add_entity")
$(@parent_selector).append(form)
form.css("left", "5px")
form.css("bottom", "5px")
form.css("display", if form.css("display") == "none" then "block" else "none")
toggle_add_related_entities_form: (entity_id) ->
entity = @entity_by_id(entity_id)
form = $("#netmap_add_related_entities")
$(@parent_selector).append(form)
$("#netmap_add_related_entities_entity_id").val(entity_id)
form.css("left", "5px")
form.css("bottom", "5px")
form.css("display", if form.css("display") == "none" then "block" else "none")
set_data: (data, center_entity_id = null) ->
@_original_data = {}
for key, value of data
@_original_data[key] = value.slice(0)
@_data = data
@set_center_entity_id(center_entity_id) if center_entity_id?
@prepare_entities_and_rels()
@_data['texts'] = [] unless @_data.texts
@ensure_text_ids()
prepare_entities_and_rels: ->
entity_index = []
for e, i in @_data.entities
entity_index[e.id] = i
e.hide_image = false unless e.hide_image
e.scale = 1 unless e.scale
@rel_groups = {}
for r in @_data.rels
if typeof r.x1 == "undefined"
r.x1 = null
r.y1 = null
r.source = @_data.entities[entity_index[r.entity1_id]]
r.target = @_data.entities[entity_index[r.entity2_id]]
r.scale = 1 unless r.scale
sorted = [r.entity1_id, r.entity2_id].sort()
min = sorted[0]
max = sorted[1]
if @rel_groups[min]
if @rel_groups[min][max]
@rel_groups[min][max].push(r.id)
else
@rel_groups[min][max] = [r.id]
else
obj = {}
obj[max] = [r.id]
@rel_groups[min] = obj
data: ->
@_data
entity_ids: ->
@_data.entities.map((e) -> e.id)
entities: ->
@_data.entities
littlesis_entities: ->
@_data.entities.filter((e) -> e.id.toString().indexOf('x') == -1)
littlesis_entity_ids: ->
@entity_ids().filter((id) -> id.toString().indexOf('x') == -1)
rel_ids: ->
@_data.rels.map((r) -> r.id)
rels: ->
@_data.rels
littlesis_rel_ids: ->
@rel_ids().filter((id) -> id.toString().indexOf('x') == -1)
set_user_id: (user_id) ->
@user_id = user_id
set_network_map_id: (id) ->
@network_map_id = id
get_network_map_id: ->
@network_map_id
save_map: (callback = null) ->
@remove_hidden_rels()
if @network_map_id?
@update_map(callback)
else
@create_map(callback)
api_data_callback: (callback = null, redirect = false) ->
t = this
(data) ->
t.network_map_id = data.id
t.set_data(data.data)
t.build()
callback.call(t, data.id) if callback?
window.location.href = "http://littlesis.org/map/" + t.network_map_id if redirect
create_map: (callback = null) ->
t = this
@api.create_map(@width, @height, @user_id, @_data, @api_data_callback(callback, true))
load_map: (id, callback = null) ->
@network_map_id = id
t = this
@api.get_map(id, @api_data_callback(callback))
reload_map: ->
if @network_map_id?
@load_map(@network_map_id)
else
@set_data(@_original_data)
@build()
@wheel()
update_map: (callback = null) ->
return unless @network_map_id?
t = this
@api.update_map(@network_map_id, @width, @height, @_data, @api_data_callback(callback))
data_for_save: ->
{ "width": @width, "height": @height, "zoom": @zoom.scale(), "user_id": @user_id, "data": JSON.stringify(@_data) }
search_entities: (q, callback = null) ->
@api.search_entities(q, callback)
add_entity: (id, position = null) ->
return false if @entity_ids().indexOf(parseInt(id)) > -1
t = this
@api.get_add_entity_data(id, @littlesis_entity_ids(), (data) ->
data.entities = data.entities.map((e) ->
e.x = if position? then position[0] - t.get_translate()[0] else t.width/2 + 200 * (0.5 - Math.random())
e.y = if position? then position[1] - t.get_translate()[1] else t.height/2 + 200 * (0.5 - Math.random())
e
)
new_data = {
"entities": t.data().entities.concat(data.entities),
"rels": t.data().rels.concat(data.rels),
"texts": (if t.data().texts then t.data().texts else [])
};
t.set_data(new_data)
t.build()
t.limit_to_current() if t.current_only
)
add_related_entities: (entity_id, num = 10, include_cats = []) ->
entity = @entity_by_id(entity_id)
return false unless entity?
t = this
@api.get_add_related_entities_data(entity_id, num, @littlesis_entity_ids(), @littlesis_rel_ids(), include_cats, (data) ->
data.entities = t.circle_entities_around_point(data.entities, [entity.x, entity.y])
t.set_data({
"entities": t.data().entities.concat(data.entities),
"rels": t.data().rels.concat(data.rels),
"texts": (if t.data().texts then t.data().texts else [])
})
t.build()
t.limit_to_current() if t.current_only
)
true
move_entities_inbounds: ->
for e in @_data.entities
e.x = 70 if e.x < 70
e.x = @width if e.x > @width
e.y = 50 if e.y < 50
e.y = @height if e.y > @height
circle_entities_around_point: (entities, position, radius = 150) ->
for e, i in entities
angle = i * ((2 * Math.PI) / entities.length)
e.x = position[0] + radius * Math.cos(angle)
e.y = position[1] + radius * Math.sin(angle)
entities
prune: ->
@remove_hidden_rels()
for e in @unconnected_entities()
@remove_entity(e.id)
@build()
show_all_rels: ->
for rel in @_data.rels
delete rel["hidden"]
@current_only = false
@build()
limit_to_cats: (cat_ids) ->
if cat_ids.length > 0
for rel in @_data.rels
if rel.category_ids?
rel.hidden = !(rel.category_ids.filter((id) -> cat_ids.indexOf(id) > -1).length > 0)
else
rel.hidden = cat_ids.indexOf(rel.category_id) == -1
@build()
limit_to_current: ->
for rel in @_data.rels
if rel.is_current == 1
rel.hidden = false
else
rel.hidden = true
@current_only = true
@build()
remove_hidden_rels: ->
@_data.rels = @_data.rels.filter((r) -> !r.hidden)
@build()
unconnected_entities: ->
connected_ids = []
for r in @_data.rels
connected_ids.push(r.entity1_id.toString())
connected_ids.push(r.entity2_id.toString())
@_data.entities.filter((e) ->
connected_ids.indexOf(e.id.toString()) == -1
)
rel_index: (id) ->
for r, i in @_data.rels
return i if r.id.toString() == id.toString()
rel_by_id: (id) ->
for r, i in @_data.rels
return r if r.id.toString() == id.toString()
remove_rel: (id) ->
@_data.rels.splice(@rel_index(id), 1)
entity_index: (id) ->
for e, i in @_data.entities
return i if e.id.toString() == id.toString()
entity_by_id: (id) ->
for e, i in @_data.entities
return e if e.id.toString() == id.toString()
return null
remove_entity: (id) ->
@_data.entities.splice(@entity_index(id), 1)
@remove_orphaned_rels()
rels_by_entity: (id) ->
@_data.rels.filter((r) ->
r.entity1_id.toString() == id.toString() || r.entity2_id.toString() == id.toString()
)
rel_curve_ratio: (rel) ->
sorted = [rel.entity1_id, rel.entity2_id].sort()
min = sorted[0]
max = sorted[1]
rels = @rel_groups[min][max]
n = rels.length
if n == 1
return 0.5
else
i = rels.indexOf(rel.id)
return 0.7 * (i+1)/n
set_center_entity_id: (id) ->
@center_entity_id = id
for entity in @_data["entities"]
if entity.id == @center_entity_id
entity.fixed = true
entity.x = @width / 2
entity.y = @height / 2
wheel: (center_entity_id = null) ->
center_entity_id = @center_entity_id if @center_entity_id?
return @halfwheel(center_entity_id) if center_entity_id?
count = 0
center_x = 0
center_y = 0
multiplier = Math.sqrt(@entities().length/10)
for entity, i in @_data["entities"]
angle = Math.PI + (2 * Math.PI / (@_data["entities"].length - (if center_entity_id? then 1 else 0))) * count
@_data["entities"][i].x = center_x + @distance * multiplier * Math.cos(angle)
@_data["entities"][i].y = center_y + @distance * multiplier * Math.sin(angle)
count++
@update_positions()
halfwheel: (center_entity_id = null) ->
center_entity_id = @center_entity_id if @center_entity_id?
return unless center_entity_id?
return @one_time_force() if @_data["entities"].length < 3
count = 0
for entity, i in @_data["entities"]
if parseInt(entity.id) == center_entity_id
@_data["entities"][i].x = @width/2
@_data["entities"][i].y = 80
else
range = Math.PI * 2/3
angle = Math.PI + (Math.PI / (@_data["entities"].length-2)) * count
@_data["entities"][i].x = 70 + (@width-140)/2 + ((@width-140)/2) * Math.cos(angle)
@_data["entities"][i].y = 80 - ((@width-140)/2) * Math.sin(angle)
count++
@update_positions()
grid: ->
num = @_data.entities.length
area = @width * @height
per = (area / num) * 0.7
radius = Math.floor(Math.sqrt(per))
x_num = Math.ceil(@width / (radius * 1.25))
y_num = Math.ceil(@height / (radius * 1.25))
for i in [0..x_num-1]
for j in [0..y_num-1]
k = x_num * j + i
if @_data.entities[k]?
@_data.entities[k].x = i * radius + 70 + (50 - 50 * Math.random())
@_data.entities[k].y = j * radius + 30 + (50 - 50 * Math.random())
@update_positions()
interlocks: (degree0_id, degree1_ids, degree2_ids) ->
d0 = @entity_by_id(degree0_id)
d0.x = @width/2
d0.y = 30
for id, i in degree1_ids
range = Math.PI * 1/2
if degree1_ids.length > 1
angle = (Math.PI * 3/2) + i * (range / (degree1_ids.length-1)) - range/2
else
angle = 0
radius = (@width-100)/2
d1 = @entity_by_id(id)
if degree1_ids.length > 1
d1.x = 70 + i * (@width-140)/(degree1_ids.length-1)
d1.y = @height/2 + 250 + (radius) * Math.sin(angle)
else
d1.x = 70 + (@width-140)/2
d1.y = @height/2 - 50
for id, i in degree2_ids
range = Math.PI * 1/3
angle = (Math.PI * 3/2) + i * (range / (degree2_ids.length-1)) - range/2
radius = (@width-100)/2
d2 = @entity_by_id(id)
d2.x = 70 + i * (@width-140)/(degree2_ids.length-1)
d2.y = @height - 480 - radius * Math.sin(angle)
@update_positions()
circle: (distance = 1000, random_offset = false) ->
@svg.attr('class', 'circle')
@distance = distance
@mode = 'circle'
@wheel(null, random_offset)
vertical: (spacing = 100) ->
@svg.attr('class', 'vertical axis')
@mode = 'vertical'
y = @entities().length * spacing
@entities().forEach((e, i) ->
e.x = 0
e.y = -y/2 + (i * spacing)
)
@update_positions()
vertical_cats: (layout_cats, spacing = 100, width = 2000) ->
@svg.attr('class', 'vertical axis')
@mode = 'vertical_cats'
@layout_cats = layout_cats
all_ids = []
for cat, i in @layout_cats
col_x = i * width/(@layout_cats.length - 1)
col_ids = []
for subcat in cat
col_ids = col_ids.concat(subcat)
all_ids = all_ids.concat(subcat)
col_ids.push(false)
col_ids.pop()
col_height = col_ids.length * spacing
for id, j in col_ids
if id
e = @entity_by_id(id)
e.x = col_x
e.y = -col_height/2 + (j * spacing)
e.cat = i
# limit to entities in cats
ids_to_remove = @entity_ids().filter((id) -> all_ids.indexOf(id) == -1)
for eid in ids_to_remove
@remove_entity(eid)
@remove_orphaned_rels()
@build()
horizontal: (spacing = 100) ->
@svg.attr('class', 'horizontal axis')
@mode = 'horizontal'
x = @entities().length * spacing
@entities().forEach((e, i) ->
e.y = 0
e.x = -x/2 + (i * spacing)
)
@update_positions()
shuffle_array: (array) ->
counter = array.length
# While there are elements in the array
while counter--
# Pick a random index
index = (Math.random() * counter) | 0
# And swap the last element with it
temp = array[counter]
array[counter] = array[index]
array[index] = temp
array
shuffle: ->
positions = @entities().map((e) -> return [e.x, e.y])
positions = @shuffle_array(positions)
for p, i in positions
@entities()[i].x = p[0]
@entities()[i].y = p[1]
@update_positions()
has_positions: ->
for e in @_data.entities
return false unless e.x? and e.y?
for r in @_data.rels
return false unless r.source? and r.target?
return false unless r.source.x? and r.source.y? and r.target.x? and r.target.y?
true
update_positions: ->
t = this
d3.selectAll(".entity").attr("transform", (d) -> "translate(" + d.x + "," + d.y + ")")
d3.selectAll(".rel").attr("transform", (d) -> "translate(" + (d.source.x + d.target.x)/2 + "," + (d.source.y + d.target.y)/2 + ")")
d3.selectAll(".line")
.attr("d", (d) ->
dx = d.target.x - d.source.x
dy = d.target.y - d.source.y
dr = Math.sqrt(dx * dx + dy * dy)
ax = (d.source.x + d.target.x) / 2
ay = (d.source.y + d.target.y) / 2
if (d.source.x < d.target.x)
xa = d.source.x - ax
ya = d.source.y - ay
else
xa = d.target.x - ax
ya = d.target.y - ay
xb = -xa
yb = -ya
x1 = d.x1
y1 = d.y1
if t.default_rels or d.x1 == null or d.y1 == null
if t.straight_rels
x1 = 0
y1 = 0
else
if t.mode == 'circle'
# CIRCLE WITH CURVES
center = t.svg_center()
n = 10/Math.sqrt(dr)
xdir = Math.abs(ax - center.x) / (ax - center.x)
ydir = Math.abs(ay - center.y) / (ay - center.y)
x1 = -Math.abs(dy) * xdir * n
y1 = -Math.abs(dx) * ydir * n
else if t.mode == 'vertical'
# VERTICAL WITH CURVES
dir = if d.category_id == 1 then 1 else -1
x1 = xa + dir * Math.abs(dy) * 0.67 # * (1 + Math.random()/2)
y1 = ya
x2 = xa + dir * Math.abs(dy) * 0.67 # * (1 + Math.random()/2)
y2 = yb
else if t.mode == 'vertical_cats'
e1 = t.entity_by_id(d.entity1_id)
e2 = t.entity_by_id(d.entity2_id)
cats = [e1.cat, e2.cat].sort()
if e1.cat == e2.cat
dir = if d.category_id == 1 and e1.cat != 0 then 1 else -1
x1 = xa + dir * Math.abs(dy) * 0.67 # * (1 + Math.random()/2)
y1 = ya
x2 = xb + dir * Math.abs(dy) * 0.67 # * (1 + Math.random()/2)
y2 = yb
else
dir = if xb - xa > 0 then 1 else -1
x1 = xa + dir * Math.abs(dx) * 0.5 # * (1 + Math.random()/2)
y1 = ya
x2 = xb - dir * Math.abs(dx) * 0.5 # * (1 + Math.random()/2)
y2 = yb
else if t.mode == 'horizontal'
# HORIZONTAL WITH CURVES
dir = if d.category_id == 1 then -1 else 1
y1 = ya + dir * Math.abs(dx) * 0.67 # * (1 + Math.random()/2)
x1 = xa
y2 = ya + dir * Math.abs(dx) * 0.67 # * (1 + Math.random()/2)
x2 = xb
else
n = t.rel_curve_ratio(d)
x1 = -ya * n
y1 = xa * n
spacing = 5
node_radius1 = (25 * (if d.source.x >= d.target.x then d.target.scale else d.source.scale)) + spacing
node_radius2 = (25 * (if d.source.x < d.target.x then d.target.scale else d.source.scale)) + spacing
# offsets for markers
dxm1 = xa - x1
dym1 = ya - y1
rm1 = Math.sqrt(dxm1 * dxm1 + dym1 * dym1)
dxm2 = xb - x1
dym2 = yb - y1
rm2 = Math.sqrt(dxm2 * dxm2 + dym2 * dym2)
xm1 = node_radius1 * dxm1 / rm1
ym1 = node_radius1 * dym1 / rm1
xm2 = node_radius2 * dxm2 / rm2
ym2 = node_radius2 * dym2 / rm2
if t.mode == 'vertical'
# VERTICAL
m = "M" + (xa + dir * node_radius1) + "," + ya
c = "C" + (x1 + dir * node_radius1) + " " + y1 + "," + (x2 + dir * node_radius1) + " " + y2 + "," + (xb + dir * node_radius2) + "," + yb
m + c
else if t.mode == 'vertical_cats'
# VERTICAL CATS
if e1.cat == e2.cat
m = "M" + (xa + dir * node_radius1) + "," + ya
c = "C" + (x1 + dir * node_radius1) + " " + y1 + "," + (x2 + dir * node_radius1) + " " + y2 + "," + (xb + dir * node_radius2) + "," + yb
m + c
else
m = "M" + (xa + dir * node_radius1) + "," + ya
c = "C" + (x1 + dir * node_radius1) + " " + y1 + "," + (x2 - dir * node_radius1) + " " + y2 + "," + (xb - dir * node_radius2) + "," + yb
m + c
else if t.mode == 'horizontal'
# HORIZONTAL
m = "M" + xa + "," + (ya + dir * node_radius1)
c = "C" + x1 + " " + (y1 + dir * node_radius1) + "," + x2 + " " + (y2 + dir * node_radius1) + "," + xb + "," + (yb + dir * node_radius2)
m + c
else
# NORMAL
m = "M" + (xa - xm1) + "," + (ya - ym1)
q = "Q" + x1 + "," + y1 + "," + (xb - xm2) + "," + (yb - ym2)
m + q
)
d3.selectAll('.text text')
.attr('x', (d) -> d.x)
.attr('y', (d) -> d.y)
@update_rel_is_directionals()
use_force: ->
for e, i in @_data.entities
delete @_data.entities[i]["fixed"]
for r, j in @_data.rels
@_data.rels[j]["x1"] = null