Module:Graph: Difference between revisions

Revision as of 16:32, 5 July 2015

Revision as of 03:42, 12 December 2015

Line 67:

name = "color",

type = scaleType,

___domain = { data = "highlights", field = "data.v" },

range = colorScale,

nice = true

Line 114:

local output =

{

version = 2,

width = 1, -- generic value as output size depends solely on map size and scaling factor

height = 1, -- ditto

Line 140 ⟶ 141:

{

-- join ("zip") of mutiple data source: here map paths data and highlights

type = "ziplookup",

keykeys = { "data.id" }, -- key for map paths data

withon = "highlights", -- name of highlight data source

withKeyonKey = "data.id", -- key for highlight data source

as = { "zipped" }, -- name of resulting table

default = { data = { v = defaultValue } } -- default value for geographic objects that could not be joined

}

}

Line 158 ⟶ 159:

properties =

{

enter = { path = { field = "pathlayout_path" } },

update = { fill = { field = "zipped.data.v" } },

hover = { fill = { value = "darkgrey" } }

}

Line 187 ⟶ 188:

-- mark colors (if no colors are given, the default 10 color palette is used)

local colors = stringArray(frame.args.colors) or "category10"

-- for line charts, the thickness of the line (strokeWidth)

local linewidth = tonumber(frame.args.linewidth) or 2.5

-- x and y axis caption

local xTitle = frame.args.xAxisTitle

Line 237 ⟶ 240:

stats =

{

name = "stats", source = "chart", transform = {

{

{ type = "facetaggregate", keys = { "data.x" } },

{ type groupby = "stats", value ={ "data.yx" },

summarize = { y = "sum" }

}

}

}

Line 254 ⟶ 259:

zero = false, -- do not include zero value

nice = true, -- force round numbers for y scale

___domain = { data = "chart", field = "data.x" }

}

if xMin then xscale.domainMin = xMin end

Line 274 ⟶ 279:

if yMin or yMax then yscale.clamp = true end

if stacked then

yscale.___domain = { data = "stats", field = "sumsum_y" }

else

yscale.___domain = { data = "chart", field = "data.y" }

end

local colorScale =

Line 282 ⟶ 287:

name = "color",

type = "ordinal",

range = colors,

___domain = { data = "chart", field = "series" }

}

local alphaScale

Line 310 ⟶ 316:

type = "ordinal",

range = "width",

___domain = { field = "data.series" }

}

xscale.padding = 0.2 -- pad each bar group

Line 328 ⟶ 334:

enter =

{

x = { scale = "x", field = "data.x" },

y = { scale = "y", field = "data.y" }

},

-- chart update event handler

Line 337 ⟶ 343:

}

}

marks.properties.update[if colorField] = { scale = "colorstroke" }then

marks.properties.enter["strokeWidth"] = { value = linewidth }

end

marks.properties.enter[colorField] = { scale = "color", field = "series" }

marks.properties.update[colorField] = { scale = "color", field = "series" }

marks.properties.hover[colorField] = { value = "red" }

if alphaScale then marks.properties.update[colorField .. "Opacity"] = { scale = "transparency" } end

Line 344 ⟶ 354:

if stacked then

-- for stacked charts this lower bound is cumulative/stacking

marks.properties.enter.y2 = { scale = "y", field = "y2layout_end" }

else

--[[

Line 361 ⟶ 371:

if not stacked and #y > 1 then

marks.properties.enter.x.scale = "series"

marks.properties.enter.x.field = "data.series"

marks.properties.enter.width.scale = "series"

end

end

-- stacked charts have their own (stacked) y values

if stacked then marks.properties.enter.y.field = "ylayout_start" end

-- set interpolation mode

Line 373 ⟶ 383:

if #y == 1 then marks.from = { data = "chart" } else

-- if there are multiple series, connect colors to series

marks.properties.update[colorField].field = "data.series"

if alphaScale then marks.properties.update[colorField .. "Opacity"].field = "data.series" end

-- apply a grouping (facetting) transformation

marks =

Line 387 ⟶ 397:

{

type = "facet",

keysgroupby = { "data.series" }

}

}

Line 394 ⟶ 404:

-- for stacked charts apply a stacking transformation

if stacked then

table.insert( marks.from.transform[2], =1, { type = "stack", pointgroupby = { "data.x" }, heightsortby = { "series" }, field = "data.y" } )

else

-- for bar charts the series are side-by-side grouped by x

if type == "rect" then

marks.from.transform[1].keysgroupby = "data.x"

marks.scales = { groupScale }

marks.properties = { enter = { x = { field = "key", scale = "x" }, width = { scale = "x", band = true } } }

Line 420 ⟶ 430:

local output =

{

version = 2,

width = graphwidth,

height = graphheight,