Template:Graph:Pie2: Difference between revisions

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Template documentation


Pie chart

You can add a pie chart with a call to this template.

Examples

Example usage: 

{{Graph:Pie2
| table = Wikimedia/all sites by browser family and major percent.tab
| field1 = browserFamily
| field2 = browserMajorVer
| value = percent
| width = 300
}}
<graph>

{ 

 //
 // ATTENTION: This code is maintained at https://www.mediawiki.org/wiki/Template:Graph:Pie2
 //            Please do not modify it anywhere else, as it may get copied and override your changes.
 //            Suggestions can be made at https://www.mediawiki.org/wiki/Template_talk:Graph:Pie2
 //
 // Template translation is in https://commons.wikimedia.org/wiki/Data:Original/Template:Graphs.tab
 //

 "version": 2,
 "width": 300, "height": 300, "padding": "strict",
 "data": [
   {
     "name": "table",
     "url": "tabular:///Wikimedia/all sites by browser family and major percent.tab",
     "format": {"property": "data"}
   },
   {
     "name": "ring1",
     "source": "table",
     "transform": [
       {"type": "aggregate", "groupby": ["browserFamily"], "summarize": {"percent": "sum"} },
       {"type": "sort", "by": ["-sum_percent"]},
       {"type": "pie","field": "sum_percent"}
     ]
   },
   {
     "name": "ring2",
     "source": "table",
     "format": {"property": "data"},
     "transform": [
       {"type": "lookup", "on": "ring1", "onKey": "browserFamily", "keys": ["browserFamily"], "as": "r1"},
       {"type": "sort", "by": ["-r1.sum_percent", "-percent"]},
       {"type": "pie","field": "percent"},
     ]
   },
 ],
 "scales": [
   {
     "name": "color",
     "type": "ordinal",
     "range": "category10",
     "domain": {"data": "ring2", "field": "browserFamily"}
   }
 ],
 "marks": [
   {
     "name": "inner_ring",
     "type": "arc",
     "from": {
       "data": "ring1"
     },
     "properties": {
       "enter": {
         "fill": {"scale": "color","field": "browserFamily"},
         "fillOpacity": {"value": 0.8},
         "stroke": {"value": "white"},
         "startAngle": {"field": "layout_start"},
         "endAngle": {"field": "layout_end"},
         "x": {"signal": "width", "mult": 0.5},
         "y": {"signal": "width", "mult": 0.5},
         "innerRadius": {"value": 0},
         "outerRadius": {"signal": "width", "mult": 0.35}
       }
     }
   },
   {
     "name": "outer_ring",
     "type": "arc",
     "from": {
       "data": "ring2",
       "transform": [
         {
           "type": "formula",
           "field": "opacity",
           "expr": "min(max(datum.percent / datum.r1.sum_percent, 0.2), 1)"
         }
       ]
     },
     "properties": {
       "enter": {
         "fill": {"scale": "color","field": "browserFamily"},
         "fillOpacity": {"field": "opacity"},
         "stroke": {"value": "white"},
         "strokeWidth": {"value": 0.4},
         "startAngle": {"field": "layout_start"},
         "endAngle": {"field": "layout_end"},
         "x": {"signal": "width", "mult": 0.5},
         "y": {"signal": "width", "mult": 0.5},
         "innerRadius": {"signal": "width", "mult": 0.35},
         "outerRadius": {"signal": "width", "mult": 0.5},
       }
     }
   },
   {
     // This mark draws labels around the pie chart after the pie chart has been drawn
     "type": "text",
     // Before drawing, we need to perform a number of calculations to figure out the exact location and orientation of the text
     "from": {
       "data": "ring1",
       "transform": [
         // For each data point (datum), each of these transformations will be ran in order.
         // Size of the pie slice, in degrees:  sliceSize = (end - start) * 180 / Pi
         { "type": "formula", "field": "sliceSize", "expr": "(datum.layout_end - datum.layout_start)*180/PI" },
         // Draw text only if the slice of the arc is big enough to avoid overcrowding
         { "type": "filter", "test": "datum.sliceSize > 7.5" },
         // Determine the side of the pie chart we are on - left or right.
         { "type": "formula", "field": "invert", "expr": "datum.layout_mid*180/PI < 180 ? 1 : -1" },
         // If on the left, the text should be right-aligned (go from the rim inward)
         { "type": "formula", "field": "align", "expr": "datum.invert < 0 ? 'left' : 'right'" },
         // At what angle should the text be drawn relative to the point on the circle
         { "type": "formula", "field": "angle", "expr": "(datum.layout_mid*180/PI)-90*datum.invert" },
       ]
     },
     "properties": {
       "enter": {
         "x": {"signal": "width", "mult": 0.5},
         "y": {"signal": "width", "mult": 0.5},
         "align": {"field": "align"},
         "angle": {"field": "angle"},
         "baseline": {"value": "middle"},
         "fill": {"value": "black"},
         "radius": {"signal": "width", "mult": 0.35, "offset": -7},
         "text": {"field": "browserFamily"},
         "theta": {"field": "layout_mid"}
       }
     }
   },
   {
     "type": "text",
     "from": {
       "data": "ring2",
       "transform": [
         { "type": "formula", "field": "sliceSize", "expr": "(datum.layout_end - datum.layout_start)*180/PI" },
         { "type": "filter", "test": "datum.sliceSize > 5" },
         { "type": "formula", "field": "invert", "expr": "datum.layout_mid*180/PI < 180 ? 1 : -1" },
         { "type": "formula", "field": "align", "expr": "datum.invert > 0 ? 'left' : 'right'" },
         { "type": "formula", "field": "angle", "expr": "(datum.layout_mid*180/PI)-90*datum.invert" },
       ]
     },
     "properties": {
       "enter": {
         "x": {"signal": "width", "mult": 0.5},
         "y": {"signal": "width", "mult": 0.5},
         "align": {"field": "align"},
         "angle": {"field": "angle"},
         "baseline": {"value": "middle"},
         "fill": {"value": "black"},
         "radius": {"signal": "width", "mult": 0.35, "offset": 12},
         "text": {"field": "browserMajorVer"},
         "theta": {"field": "layout_mid"}
       }
     }
   }
 ]

} </graph> See or edit source data.

Template Data

This template adds a pie chart to the page using Graph extension

Template parameters

This template prefers inline formatting of parameters.

ParameterDescriptionTypeStatus
tabletable

Data page name on Commons, without the Data: prefix. The table should contain at least three columns - major group, minor group, and numeric value

Example
Wikimedia/all sites by browser family and major percent.tab
Unknownrequired
field1field1

Id of the column shown as the inner circle

Example
browserFamily
Unknownrequired
field2field2

Id of the column shown as the outer circle

Example
browserMajorVer
Unknownrequired
valuevalue

Id of the column with the numeric value

Example
percent
Unknownrequired
widthwidth

Specify the width of the pie in number of pixels

Default
300
Numbersuggested
The colors of the slicescolors

The colors of the slices, specified as Vega defined rangeliteral. This can also be a list like [ "red", "green" ]

Default
"category10"
Example
"category10"
Stringoptional
innerportioninnerportion

Portion of the radius shown for the inner circle. Must be between 0 and 0.5

Default
0.35
Example
0.25
Numberoptional
debugdebug

no description

Unknownoptional
The above documentation is transcluded from Template:Graph:Pie2/doc. (edit | history)
Editors can experiment in this template’s sandbox (create | mirror) and testcases (create) pages.
Please add categories to the /doc subpage. Subpages of this template.
<graph>

{
  //
  // ATTENTION: This code is maintained at https://www.mediawiki.org/wiki/Template:Graph:Pie2
  //            Please do not modify it anywhere else, as it may get copied and override your changes.
  //            Suggestions can be made at https://www.mediawiki.org/wiki/Template_talk:Graph:Pie2
  //
  // Template translation is in https://commons.wikimedia.org/wiki/Data:Original/Template:Graphs.tab
  //

  "version": 2,
  "width": 300, "height": 300, "padding": "strict",
  "data": [
    {
      "name": "table",
      "url": "tabular:///Wikimedia/all sites by browser family and major percent.tab",
      "format": {"property": "data"}
    },
    {
      "name": "ring1",
      "source": "table",
      "transform": [
        {"type": "aggregate", "groupby": ["browserFamily"], "summarize": {"percent": "sum"} },
        {"type": "sort", "by": ["-sum_percent"]},
        {"type": "pie","field": "sum_percent"}
      ]
    },
    {
      "name": "ring2",
      "source": "table",
      "format": {"property": "data"},
      "transform": [
        {"type": "lookup", "on": "ring1", "onKey": "browserFamily", "keys": ["browserFamily"], "as": "r1"},
        {"type": "sort", "by": ["-r1.sum_percent", "-percent"]},
        {"type": "pie","field": "percent"},
      ]
    },
  ],
  "scales": [
    {
      "name": "color",
      "type": "ordinal",
      "range": "category10",
      "domain": {"data": "ring2", "field": "browserFamily"}
    }
  ],
  "marks": [
    {
      "name": "inner_ring",
      "type": "arc",
      "from": {
        "data": "ring1"
      },
      "properties": {
        "enter": {
          "fill": {"scale": "color","field": "browserFamily"},
          "fillOpacity": {"value": 0.8},
          "stroke": {"value": "white"},
          "startAngle": {"field": "layout_start"},
          "endAngle": {"field": "layout_end"},
          "x": {"signal": "width", "mult": 0.5},
          "y": {"signal": "width", "mult": 0.5},
          "innerRadius": {"value": 0},
          "outerRadius": {"signal": "width", "mult": 0.35}
        }
      }
    },
    {
      "name": "outer_ring",
      "type": "arc",
      "from": {
        "data": "ring2",
        "transform": [
          {
            "type": "formula",
            "field": "opacity",
            "expr": "min(max(datum.percent / datum.r1.sum_percent, 0.2), 1)"
          }
        ]
      },
      "properties": {
        "enter": {
          "fill": {"scale": "color","field": "browserFamily"},
          "fillOpacity": {"field": "opacity"},
          "stroke": {"value": "white"},
          "strokeWidth": {"value": 0.4},
          "startAngle": {"field": "layout_start"},
          "endAngle": {"field": "layout_end"},
          "x": {"signal": "width", "mult": 0.5},
          "y": {"signal": "width", "mult": 0.5},
          "innerRadius": {"signal": "width", "mult": 0.35},
          "outerRadius": {"signal": "width", "mult": 0.5},
        }
      }
    },
    {
      // This mark draws labels around the pie chart after the pie chart has been drawn
      "type": "text",
      // Before drawing, we need to perform a number of calculations to figure out the exact location and orientation of the text
      "from": {
        "data": "ring1",
        "transform": [
          // For each data point (datum), each of these transformations will be ran in order.
          // Size of the pie slice, in degrees:  sliceSize = (end - start) * 180 / Pi
          { "type": "formula", "field": "sliceSize", "expr": "(datum.layout_end - datum.layout_start)*180/PI" },
          // Draw text only if the slice of the arc is big enough to avoid overcrowding
          { "type": "filter", "test": "datum.sliceSize > 7.5" },
          // Determine the side of the pie chart we are on - left or right.
          { "type": "formula", "field": "invert", "expr": "datum.layout_mid*180/PI < 180 ? 1 : -1" },
          // If on the left, the text should be right-aligned (go from the rim inward)
          { "type": "formula", "field": "align", "expr": "datum.invert < 0 ? 'left' : 'right'" },
          // At what angle should the text be drawn relative to the point on the circle
          { "type": "formula", "field": "angle", "expr": "(datum.layout_mid*180/PI)-90*datum.invert" },
        ]
      },
      "properties": {
        "enter": {
          "x": {"signal": "width", "mult": 0.5},
          "y": {"signal": "width", "mult": 0.5},
          "align": {"field": "align"},
          "angle": {"field": "angle"},
          "baseline": {"value": "middle"},
          "fill": {"value": "black"},
          "radius": {"signal": "width", "mult": 0.35, "offset": -7},
          "text": {"field": "browserFamily"},
          "theta": {"field": "layout_mid"}
        }
      }
    },
    {
      "type": "text",
      "from": {
        "data": "ring2",
        "transform": [
          { "type": "formula", "field": "sliceSize", "expr": "(datum.layout_end - datum.layout_start)*180/PI" },
          { "type": "filter", "test": "datum.sliceSize > 5" },
          { "type": "formula", "field": "invert", "expr": "datum.layout_mid*180/PI < 180 ? 1 : -1" },
          { "type": "formula", "field": "align", "expr": "datum.invert > 0 ? 'left' : 'right'" },
          { "type": "formula", "field": "angle", "expr": "(datum.layout_mid*180/PI)-90*datum.invert" },
        ]
      },
      "properties": {
        "enter": {
          "x": {"signal": "width", "mult": 0.5},
          "y": {"signal": "width", "mult": 0.5},
          "align": {"field": "align"},
          "angle": {"field": "angle"},
          "baseline": {"value": "middle"},
          "fill": {"value": "black"},
          "radius": {"signal": "width", "mult": 0.35, "offset": 12},
          "text": {"field": "browserMajorVer"},
          "theta": {"field": "layout_mid"}
        }
      }
    }
  ]
}

</graph>
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