<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="sv">
	<id>https://wpu.nu/index.php?action=history&amp;feed=atom&amp;title=Modul%3AChart</id>
	<title>Modul:Chart - Versionshistorik</title>
	<link rel="self" type="application/atom+xml" href="https://wpu.nu/index.php?action=history&amp;feed=atom&amp;title=Modul%3AChart"/>
	<link rel="alternate" type="text/html" href="https://wpu.nu/index.php?title=Modul:Chart&amp;action=history"/>
	<updated>2026-04-13T02:38:00Z</updated>
	<subtitle>Versionshistorik för denna sida på wikin</subtitle>
	<generator>MediaWiki 1.35.4</generator>
	<entry>
		<id>https://wpu.nu/index.php?title=Modul:Chart&amp;diff=352290&amp;oldid=prev</id>
		<title>Simon Lundell: 1 version importerades: Importerar för Graph-funktion</title>
		<link rel="alternate" type="text/html" href="https://wpu.nu/index.php?title=Modul:Chart&amp;diff=352290&amp;oldid=prev"/>
		<updated>2021-01-17T11:00:04Z</updated>

		<summary type="html">&lt;p&gt;1 version importerades: Importerar för Graph-funktion&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;sv&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Äldre version&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Versionen från 17 januari 2021 kl. 11.00&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;sv&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(Ingen skillnad)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Simon Lundell</name></author>
	</entry>
	<entry>
		<id>https://wpu.nu/index.php?title=Modul:Chart&amp;diff=352289&amp;oldid=prev</id>
		<title>wikipedia&gt;Izno: remove vendor prefixes on column width</title>
		<link rel="alternate" type="text/html" href="https://wpu.nu/index.php?title=Modul:Chart&amp;diff=352289&amp;oldid=prev"/>
		<updated>2021-01-08T05:24:31Z</updated>

		<summary type="html">&lt;p&gt;remove vendor prefixes on column width&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Ny sida&lt;/b&gt;&lt;/p&gt;&lt;div&gt;--[[&lt;br /&gt;
    keywords are used for languages: they are the names of the actual&lt;br /&gt;
    parameters of the template&lt;br /&gt;
]]&lt;br /&gt;
&lt;br /&gt;
local keywords = {&lt;br /&gt;
    barChart = 'bar chart',&lt;br /&gt;
    pieChart = 'pie chart',&lt;br /&gt;
    width = 'width',&lt;br /&gt;
    height = 'height',&lt;br /&gt;
    stack = 'stack',&lt;br /&gt;
    colors = 'colors',&lt;br /&gt;
    group = 'group',&lt;br /&gt;
    xlegend = 'x legends',&lt;br /&gt;
    yticks = 'y tick marks',&lt;br /&gt;
    tooltip = 'tooltip',&lt;br /&gt;
    accumulateTooltip = 'tooltip value accumulation',&lt;br /&gt;
    links = 'links',&lt;br /&gt;
    defcolor = 'default color',&lt;br /&gt;
    scalePerGroup = 'scale per group',&lt;br /&gt;
    unitsPrefix = 'units prefix',&lt;br /&gt;
    unitsSuffix = 'units suffix',&lt;br /&gt;
    groupNames = 'group names',&lt;br /&gt;
    hideGroupLegends = 'hide group legends',&lt;br /&gt;
    slices = 'slices',&lt;br /&gt;
    slice = 'slice',&lt;br /&gt;
    radius = 'radius',&lt;br /&gt;
    percent = 'percent',&lt;br /&gt;
&lt;br /&gt;
} -- here is what you want to translate&lt;br /&gt;
&lt;br /&gt;
local defColors = mw.loadData(&amp;quot;Module:Chart/Default colors&amp;quot;)&lt;br /&gt;
local hideGroupLegends&lt;br /&gt;
&lt;br /&gt;
local function nulOrWhitespace( s )&lt;br /&gt;
    return not s or mw.text.trim( s ) == ''&lt;br /&gt;
end&lt;br /&gt;
&lt;br /&gt;
local function createGroupList( tab, legends, cols )&lt;br /&gt;
    if #legends &amp;gt; 1 and not hideGroupLegends then&lt;br /&gt;
        table.insert( tab, mw.text.tag( 'div' ) )&lt;br /&gt;
        local list = {}&lt;br /&gt;
        local spanStyle = &amp;quot;padding:0 1em;background-color:%s;border:1px solid %s;margin-right:1em;-webkit-print-color-adjust:exact;&amp;quot;&lt;br /&gt;
        for gi = 1, #legends do&lt;br /&gt;
            local span = mw.text.tag( 'span', { style = string.format( spanStyle, cols[gi], cols[gi] ) }, '&amp;amp;nbsp;' ) .. ' '..  legends[gi]&lt;br /&gt;
            table.insert( list, mw.text.tag( 'li', {}, span ) )&lt;br /&gt;
        end&lt;br /&gt;
        table.insert( tab,&lt;br /&gt;
            mw.text.tag( 'ul',&lt;br /&gt;
                {style=&amp;quot;width:100%;list-style:none;column-width:12em;&amp;quot;},&lt;br /&gt;
                table.concat( list, '\n' )&lt;br /&gt;
            )&lt;br /&gt;
        )&lt;br /&gt;
        table.insert( tab, '&amp;lt;/div&amp;gt;' )&lt;br /&gt;
    end&lt;br /&gt;
end&lt;br /&gt;
&lt;br /&gt;
function pieChart( frame )&lt;br /&gt;
    local res, imslices, args = {}, {}, frame.args&lt;br /&gt;
    local radius&lt;br /&gt;
    local values, colors, names, legends, links = {}, {}, {}, {}, {}&lt;br /&gt;
    local delimiter = args.delimiter or ':'&lt;br /&gt;
    local lang = mw.getContentLanguage()&lt;br /&gt;
&lt;br /&gt;
    function getArg( s, def, subst, with )&lt;br /&gt;
        local result = args[keywords[s]] or def or ''&lt;br /&gt;
        if subst and with then result = mw.ustring.gsub( result, subst, with ) end&lt;br /&gt;
        return result&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function analyzeParams()&lt;br /&gt;
        function addSlice( i, slice )&lt;br /&gt;
            local value, name, color, link = unpack( mw.text.split( slice, '%s*' .. delimiter .. '%s*' ) )&lt;br /&gt;
            values[i] = tonumber( lang:parseFormattedNumber( value ) )&lt;br /&gt;
                or error( string.format( 'Slice %d: &amp;quot;%s&amp;quot;, first item(&amp;quot;%s&amp;quot;) could not be parsed as a number', i, value or '', sliceStr ) )&lt;br /&gt;
            colors[i] = not nulOrWhitespace( color ) and color or defColors[i * 2]&lt;br /&gt;
            names[i] = name or ''&lt;br /&gt;
            links[i] = link&lt;br /&gt;
        end&lt;br /&gt;
        &lt;br /&gt;
        radius = getArg( 'radius', 150 )&lt;br /&gt;
        hideGroupLegends = not nulOrWhitespace( args[keywords.hideGroupLegends] )&lt;br /&gt;
        local slicesStr = getArg( 'slices' )&lt;br /&gt;
        local prefix = getArg( 'unitsPrefix', '', '_', ' ' )&lt;br /&gt;
        local suffix = getArg( 'unitsSuffix', '', '_', ' ' )&lt;br /&gt;
        local percent = args[keywords.percent]&lt;br /&gt;
        local sum = 0&lt;br /&gt;
        local i, value = 0&lt;br /&gt;
        for slice in mw.ustring.gmatch( slicesStr or '', &amp;quot;%b()&amp;quot; ) do&lt;br /&gt;
            i = i + 1&lt;br /&gt;
            addSlice( i, mw.ustring.match( slice, '^%(%s*(.-)%s*%)$' ) )&lt;br /&gt;
        end&lt;br /&gt;
        &lt;br /&gt;
        for k, v in pairs(args) do&lt;br /&gt;
            local ind = mw.ustring.match( k, '^' .. keywords.slice .. '%s+(%d+)$' )&lt;br /&gt;
            if ind then addSlice( tonumber( ind ), v ) end&lt;br /&gt;
        end&lt;br /&gt;
        &lt;br /&gt;
        for _, val in ipairs( values ) do sum = sum + val end&lt;br /&gt;
        for i, value in ipairs( values ) do&lt;br /&gt;
            local addprec = percent and string.format( ' (%0.1f%%)', value / sum * 100 ) or ''&lt;br /&gt;
            legends[i] = mw.ustring.format( '%s: %s%s%s%s', names[i], prefix, lang:formatNum( value ), suffix, addprec )&lt;br /&gt;
            links[i] = mw.text.trim( links[i] or mw.ustring.format( '[[#noSuchAnchor|%s]]', legends[i] ) )&lt;br /&gt;
        end&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function addRes( ... )&lt;br /&gt;
        for _, v in pairs( { ... } ) do&lt;br /&gt;
            table.insert( res, v )&lt;br /&gt;
        end&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function createImageMap()&lt;br /&gt;
        addRes( '{{#tag:imagemap|', 'Image:Circle frame.svg{{!}}' .. ( radius * 2 ) .. 'px' )&lt;br /&gt;
        addRes( unpack( imslices ) )&lt;br /&gt;
        addRes( 'desc none', '}}' )&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function drawSlice( i, q, start )&lt;br /&gt;
        local color = colors[i]&lt;br /&gt;
        local angle = start * 2 * math.pi&lt;br /&gt;
        local sin, cos = math.abs( math.sin( angle ) ), math.abs( math.cos( angle ) )&lt;br /&gt;
        local wsin, wcos = sin * radius, cos * radius&lt;br /&gt;
        local s1, s2, w1, w2, w3, w4, width, border&lt;br /&gt;
        local style&lt;br /&gt;
        if q == 1 then&lt;br /&gt;
            border = 'left'&lt;br /&gt;
            w1, w2, w3, w4 = 0, 0, wsin, wcos&lt;br /&gt;
            s1, s2 = 'bottom', 'left'&lt;br /&gt;
        elseif q == 2 then&lt;br /&gt;
            border = 'bottom'&lt;br /&gt;
            w1, w2, w3, w4 = 0, wcos, wsin, 0&lt;br /&gt;
            s1, s2 = 'bottom', 'right'&lt;br /&gt;
        elseif q == 3 then&lt;br /&gt;
            border = 'right'&lt;br /&gt;
            w1, w2, w3, w4 = wsin, wcos, 0, 0&lt;br /&gt;
            s1, s2 = 'top', 'right'&lt;br /&gt;
        else&lt;br /&gt;
            border = 'top'&lt;br /&gt;
            w1, w2, w3, w4 = wsin, 0, 0, wcos&lt;br /&gt;
            s1, s2 = 'top', 'left'&lt;br /&gt;
        end&lt;br /&gt;
&lt;br /&gt;
        local style = string.format( 'border:solid transparent;position:absolute;%s:%spx;%s:%spx;width:%spx;height:%spx', s1, radius, s2, radius, radius, radius )&lt;br /&gt;
        if start &amp;lt;= ( q - 1 ) * 0.25 then&lt;br /&gt;
            style = string.format( '%s;border:0;background-color:%s', style, color )&lt;br /&gt;
        else&lt;br /&gt;
            style = string.format( '%s;border-width:%spx %spx %spx %spx;border-%s-color:%s', style, w1, w2, w3, w4, border, color )&lt;br /&gt;
        end&lt;br /&gt;
        addRes( mw.text.tag( 'div', { style = style }, '' ) )&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function createSlices()&lt;br /&gt;
        function coordsOfAngle( angle )&lt;br /&gt;
            return ( 100 + math.floor( 100 * math.cos( angle ) ) ) .. ' ' .. ( 100 - math.floor( 100 * math.sin( angle ) ) )&lt;br /&gt;
        end&lt;br /&gt;
&lt;br /&gt;
        local sum, start = 0, 0&lt;br /&gt;
        for _, value in ipairs( values ) do sum = sum + value end&lt;br /&gt;
        for i, value in ipairs(values) do&lt;br /&gt;
            local poly = { 'poly 100 100' }&lt;br /&gt;
            local startC, endC =  start / sum, ( start + value ) / sum&lt;br /&gt;
            local startQ, endQ = math.floor( startC * 4 + 1 ), math.floor( endC * 4 + 1 )&lt;br /&gt;
            for q = startQ, math.min( endQ, 4 ) do drawSlice( i, q, startC ) end&lt;br /&gt;
            for angle = startC * 2 * math.pi, endC * 2 * math.pi, 0.02 do&lt;br /&gt;
                table.insert( poly,  coordsOfAngle( angle ) )&lt;br /&gt;
            end&lt;br /&gt;
            table.insert( poly, coordsOfAngle( endC * 2 * math.pi ) .. ' 100 100 ' .. links[i] )&lt;br /&gt;
            table.insert( imslices, table.concat( poly, ' ' ) )&lt;br /&gt;
            start = start + values[i]&lt;br /&gt;
        end&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    analyzeParams()&lt;br /&gt;
    if #values == 0 then error( &amp;quot;no slices found - can't draw pie chart&amp;quot; ) end&lt;br /&gt;
    addRes( mw.text.tag( 'div', { class = 'chart noresize', style = string.format( 'margin-top:0.5em;max-width:%spx;', radius * 2 ) } ) )&lt;br /&gt;
    addRes( mw.text.tag( 'div', { style = string.format( 'position:relative;min-width:%spx;min-height:%spx;max-width:%spx;overflow:hidden;', radius * 2, radius * 2, radius * 2 ) } ) )&lt;br /&gt;
    createSlices()&lt;br /&gt;
    addRes( mw.text.tag( 'div', { style = string.format( 'position:absolute;min-width:%spx;min-height:%spx;overflow:hidden;', radius * 2, radius * 2 ) } ) )&lt;br /&gt;
    createImageMap()&lt;br /&gt;
    addRes( '&amp;lt;/div&amp;gt;' ) -- close &amp;quot;position:relative&amp;quot; div that contains slices and imagemap.&lt;br /&gt;
    addRes( '&amp;lt;/div&amp;gt;' ) -- close &amp;quot;position:relative&amp;quot; div that contains slices and imagemap.&lt;br /&gt;
    createGroupList( res, legends, colors ) -- legends&lt;br /&gt;
    addRes( '&amp;lt;/div&amp;gt;' ) -- close containing div&lt;br /&gt;
    return frame:preprocess( table.concat( res, '\n' ) )&lt;br /&gt;
end&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
function barChart( frame )&lt;br /&gt;
    local res = {}&lt;br /&gt;
    local args = frame.args -- can be changed to frame:getParent().args&lt;br /&gt;
    local values, xlegends, colors, tooltips, yscales = {}, {}, {}, {} ,{}, {}, {}&lt;br /&gt;
    local groupNames, unitsSuffix, unitsPrefix, links = {}, {}, {}, {}&lt;br /&gt;
    local width, height, yticks, stack, delimiter = 500, 350, -1, false, args.delimiter or ':'&lt;br /&gt;
    local chartWidth, chartHeight, defcolor, scalePerGroup, accumulateTooltip&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
    local numGroups, numValues&lt;br /&gt;
    local scaleWidth&lt;br /&gt;
&lt;br /&gt;
    function validate()&lt;br /&gt;
        function asGroups( name, tab, toDuplicate, emptyOK )&lt;br /&gt;
            if #tab == 0 and not emptyOK then&lt;br /&gt;
                error( &amp;quot;must supply values for &amp;quot; .. keywords[name] )&lt;br /&gt;
            end&lt;br /&gt;
            if #tab == 1 and toDuplicate then&lt;br /&gt;
                for i = 2, numGroups do tab[i] = tab[1] end&lt;br /&gt;
            end&lt;br /&gt;
            if #tab &amp;gt; 0 and #tab ~= numGroups then&lt;br /&gt;
                error ( keywords[name] .. ' must contain the same number of items as the number of groups, but it contains ' .. #tab .. ' items and there are ' .. numGroups .. ' groups')&lt;br /&gt;
            end&lt;br /&gt;
        end&lt;br /&gt;
&lt;br /&gt;
        -- do all sorts of validation here, so we can assume all params are good from now on.&lt;br /&gt;
        -- among other things, replace numerical values with mw.language:parseFormattedNumber() result&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
        chartHeight = height - 80&lt;br /&gt;
        numGroups = #values&lt;br /&gt;
        numValues = #values[1]&lt;br /&gt;
        defcolor = defcolor or 'blue'&lt;br /&gt;
        colors[1] = colors[1] or defcolor&lt;br /&gt;
        scaleWidth = scalePerGroup and 80 * numGroups or 100&lt;br /&gt;
        chartWidth = width -scaleWidth&lt;br /&gt;
        asGroups( 'unitsPrefix', unitsPrefix, true, true )&lt;br /&gt;
        asGroups( 'unitsSuffix', unitsSuffix, true, true )&lt;br /&gt;
        asGroups( 'colors', colors, true, true )&lt;br /&gt;
        asGroups( 'groupNames', groupNames, false, false )&lt;br /&gt;
        if stack and scalePerGroup then&lt;br /&gt;
            error( string.format( 'Illegal settings: %s and %s are incompatible.', keyword.stack, keyword.scalePerGroup ) )&lt;br /&gt;
        end&lt;br /&gt;
        for gi = 2, numGroups do&lt;br /&gt;
            if #values[gi] ~= numValues then error( keywords.group .. &amp;quot; &amp;quot; .. gi .. &amp;quot; does not have same number of values as &amp;quot; .. keywords.group .. &amp;quot; 1&amp;quot; ) end&lt;br /&gt;
        end&lt;br /&gt;
        if #xlegends ~= numValues then error( 'Illegal number of ' .. keywords.xlegend .. '. Should be exactly ' .. numValues ) end&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function extractParams()&lt;br /&gt;
        function testone( keyword, key, val, tab )&lt;br /&gt;
            i = keyword == key and 0 or key:match( keyword .. &amp;quot;%s+(%d+)&amp;quot; )&lt;br /&gt;
            if not i then return end&lt;br /&gt;
            i = tonumber( i ) or error(&amp;quot;Expect numerical index for key &amp;quot; .. keyword .. &amp;quot; instead of '&amp;quot; .. key .. &amp;quot;'&amp;quot;)&lt;br /&gt;
            if i &amp;gt; 0 then tab[i] = {} end&lt;br /&gt;
            for s in mw.text.gsplit( val, '%s*' .. delimiter .. '%s*' ) do&lt;br /&gt;
                table.insert( i == 0 and tab or tab[i], s )&lt;br /&gt;
            end&lt;br /&gt;
            return true&lt;br /&gt;
        end&lt;br /&gt;
&lt;br /&gt;
        for k, v in pairs( args ) do&lt;br /&gt;
            if k == keywords.width then&lt;br /&gt;
                width = tonumber( v )&lt;br /&gt;
                if not width or width &amp;lt; 200 then&lt;br /&gt;
                    error( 'Illegal width value (must be a number, and at least 200): ' .. v )&lt;br /&gt;
                end&lt;br /&gt;
            elseif k == keywords.height then&lt;br /&gt;
                height = tonumber( v )&lt;br /&gt;
                if not height or height &amp;lt; 200 then&lt;br /&gt;
                    error( 'Illegal height value (must be a number, and at least 200): ' .. v )&lt;br /&gt;
                end&lt;br /&gt;
            elseif k == keywords.stack then stack = true&lt;br /&gt;
            elseif k == keywords.yticks then yticks = tonumber(v) or -1&lt;br /&gt;
            elseif k == keywords.scalePerGroup then scalePerGroup = true&lt;br /&gt;
            elseif k == keywords.defcolor then defcolor = v&lt;br /&gt;
            elseif k == keywords.accumulateTooltip then accumulateTooltip = not nulOrWhitespace( v )&lt;br /&gt;
            elseif k == keywords.hideGroupLegends then hideGroupLegends = not nulOrWhitespace( v )&lt;br /&gt;
            else&lt;br /&gt;
                for keyword, tab in pairs( {&lt;br /&gt;
                    group = values,&lt;br /&gt;
                    xlegend = xlegends,&lt;br /&gt;
                    colors = colors,&lt;br /&gt;
                    tooltip = tooltips,&lt;br /&gt;
                    unitsPrefix = unitsPrefix,&lt;br /&gt;
                    unitsSuffix = unitsSuffix,&lt;br /&gt;
                    groupNames = groupNames,&lt;br /&gt;
                    links = links,&lt;br /&gt;
                    } ) do&lt;br /&gt;
                        if testone( keywords[keyword], k, v, tab )&lt;br /&gt;
                            then break&lt;br /&gt;
                        end&lt;br /&gt;
                end&lt;br /&gt;
            end&lt;br /&gt;
        end&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function roundup( x ) -- returns the next round number: eg., for 30 to 39.999 will return 40, for 3000 to 3999.99 wil return 4000. for 10 - 14.999 will return 15.&lt;br /&gt;
        local ordermag = 10 ^ math.floor( math.log10( x ) )&lt;br /&gt;
        local normalized = x /  ordermag&lt;br /&gt;
        local top = normalized &amp;gt;= 1.5 and ( math.floor( normalized + 1 ) ) or 1.5&lt;br /&gt;
        return ordermag * top, top, ordermag&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function calcHeightLimits() -- if limits were passed by user, use them, otherwise calculate. for &amp;quot;stack&amp;quot; there's only one limet.&lt;br /&gt;
        if stack then&lt;br /&gt;
            local sums = {}&lt;br /&gt;
            for _, group in pairs( values ) do&lt;br /&gt;
                for i, val in ipairs( group ) do sums[i] = ( sums[i] or 0 ) + val end&lt;br /&gt;
            end&lt;br /&gt;
            local sum = math.max( unpack( sums ) )&lt;br /&gt;
            for i = 1, #values do yscales[i] = sum end&lt;br /&gt;
        else&lt;br /&gt;
            for i, group in ipairs( values ) do yscales[i] = math.max( unpack( group ) ) end&lt;br /&gt;
        end&lt;br /&gt;
        for i, scale in ipairs( yscales ) do yscales[i] = roundup( scale * 0.9999 ) end&lt;br /&gt;
        if not scalePerGroup then for i = 1, #values do yscales[i] = math.max( unpack( yscales ) ) end end&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function tooltip( gi, i, val )&lt;br /&gt;
        if tooltips and tooltips[gi] and not nulOrWhitespace( tooltips[gi][i] ) then return tooltips[gi][i], true end&lt;br /&gt;
        local groupName = not nulOrWhitespace( groupNames[gi] ) and groupNames[gi] .. ': ' or ''&lt;br /&gt;
        local prefix = unitsPrefix[gi] or unitsPrefix[1] or ''&lt;br /&gt;
        local suffix = unitsSuffix[gi] or unitsSuffix[1] or ''&lt;br /&gt;
        return mw.ustring.gsub(groupName .. prefix .. mw.getContentLanguage():formatNum( tonumber( val ) or 0 ) .. suffix, '_', ' '), false&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function calcHeights( gi, i, val )&lt;br /&gt;
        local barHeight = math.floor( val / yscales[gi] * chartHeight + 0.5 ) -- add half to make it &amp;quot;round&amp;quot; instead of &amp;quot;trunc&amp;quot;&lt;br /&gt;
        local top, base = chartHeight - barHeight, 0&lt;br /&gt;
        if stack then&lt;br /&gt;
            local rawbase = 0&lt;br /&gt;
            for j = 1, gi - 1 do rawbase = rawbase + values[j][i] end -- sum the &amp;quot;i&amp;quot; value of all the groups below our group, gi.&lt;br /&gt;
            base = math.floor( chartHeight * rawbase / yscales[gi] ) -- normally, and especially if it's &amp;quot;stack&amp;quot;, all the yscales must be equal.&lt;br /&gt;
        end&lt;br /&gt;
        return barHeight, top - base&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function groupBounds( i )&lt;br /&gt;
        local setWidth = math.floor( chartWidth / numValues )&lt;br /&gt;
        local setOffset = ( i - 1 ) * setWidth&lt;br /&gt;
        return setOffset, setWidth&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function calcx( gi, i )&lt;br /&gt;
        local setOffset, setWidth = groupBounds( i )&lt;br /&gt;
        if stack or numGroups == 1 then&lt;br /&gt;
            local barWidth = math.min( 38, math.floor( 0.8 * setWidth ) )&lt;br /&gt;
            return setOffset + (setWidth - barWidth) / 2, barWidth&lt;br /&gt;
        end&lt;br /&gt;
        setWidth = 0.85 * setWidth&lt;br /&gt;
        local barWidth = math.floor( 0.75 * setWidth / numGroups )&lt;br /&gt;
        local left = setOffset + math.floor( ( gi - 1 ) / numGroups * setWidth )&lt;br /&gt;
        return left, barWidth&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function drawbar( gi, i, val, ttval )&lt;br /&gt;
        if val == '0' then return end -- do not show single line (borders....) if value is 0, or rather, '0'. see talkpage&lt;br /&gt;
&lt;br /&gt;
        local color, tooltip, custom = colors[gi] or defcolor or 'blue', tooltip( gi, i, ttval or val )&lt;br /&gt;
        local left, barWidth = calcx( gi, i )&lt;br /&gt;
        local barHeight, top = calcHeights( gi, i, val )&lt;br /&gt;
        &lt;br /&gt;
        -- borders so it shows up when printing&lt;br /&gt;
        local style = string.format(&amp;quot;position:absolute;left:%spx;top:%spx;height:%spx;min-width:%spx;max-width:%spx;background-color:%s;-webkit-print-color-adjust:exact;border:1px solid %s;border-bottom:none;overflow:hidden;&amp;quot;,&lt;br /&gt;
                        left, top, barHeight-1, barWidth-2, barWidth-2, color, color)&lt;br /&gt;
        local link = links[gi] and links[gi][i] or ''&lt;br /&gt;
        local img = not nulOrWhitespace( link ) and mw.ustring.format( '[[File:Transparent.png|1000px|link=%s|%s]]', link, custom and tooltip or '' ) or ''&lt;br /&gt;
        table.insert( res, mw.text.tag( 'div', { style = style, title = tooltip, }, img ) )&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
    function drawYScale()&lt;br /&gt;
        function drawSingle( gi, color, width, yticks, single )&lt;br /&gt;
            local yscale = yscales[gi]&lt;br /&gt;
            local _, top, ordermag = roundup( yscale * 0.999 )&lt;br /&gt;
            local numnotches = yticks &amp;gt;= 0 and yticks or&lt;br /&gt;
            		(top &amp;lt;= 1.5 and top * 4&lt;br /&gt;
            		or top &amp;lt; 4  and top * 2&lt;br /&gt;
                    or top)&lt;br /&gt;
            local valStyleStr =&lt;br /&gt;
                single and 'position:absolute;height=20px;text-align:right;vertical-align:middle;width:%spx;top:%spx;padding:0 2px'&lt;br /&gt;
                or 'position:absolute;height=20px;text-align:right;vertical-align:middle;width:%spx;top:%spx;left:3px;background-color:%s;color:white;font-weight:bold;text-shadow:-1px -1px 0 #000,1px -1px 0 #000,-1px 1px 0 #000,1px 1px 0 #000;padding:0 2px'&lt;br /&gt;
            local notchStyleStr = 'position:absolute;height=1px;min-width:5px;top:%spx;left:%spx;border:1px solid %s;'&lt;br /&gt;
            for i = 1, numnotches do&lt;br /&gt;
                local val = i / numnotches * yscale&lt;br /&gt;
                local y = chartHeight - calcHeights( gi, 1, val )&lt;br /&gt;
                local div = mw.text.tag( 'div', { style = string.format( valStyleStr, width - 10, y - 10, color ) }, mw.getContentLanguage():formatNum( tonumber( val ) or 0 ) )&lt;br /&gt;
                table.insert( res, div )&lt;br /&gt;
                div = mw.text.tag( 'div', { style = string.format( notchStyleStr, y, width - 4, color ) }, '' )&lt;br /&gt;
                table.insert( res, div )&lt;br /&gt;
            end&lt;br /&gt;
        end&lt;br /&gt;
&lt;br /&gt;
        if scalePerGroup then&lt;br /&gt;
            local colWidth = 80&lt;br /&gt;
            local colStyle = &amp;quot;position:absolute;height:%spx;min-width:%spx;left:%spx;border-right:1px solid %s;color:%s&amp;quot;&lt;br /&gt;
            for gi = 1, numGroups do&lt;br /&gt;
                local left = ( gi - 1 ) * colWidth&lt;br /&gt;
                local color = colors[gi] or defcolor&lt;br /&gt;
                table.insert( res, mw.text.tag( 'div', { style = string.format( colStyle, chartHeight, colWidth, left, color, color ) } ) )&lt;br /&gt;
                drawSingle( gi, color, colWidth, yticks )&lt;br /&gt;
                table.insert( res, '&amp;lt;/div&amp;gt;' )&lt;br /&gt;
            end&lt;br /&gt;
        else&lt;br /&gt;
            drawSingle( 1, 'black', scaleWidth, yticks, true )&lt;br /&gt;
        end&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function drawXlegends()&lt;br /&gt;
        local setOffset, setWidth&lt;br /&gt;
        local legendDivStyleFormat = &amp;quot;position:absolute;left:%spx;top:10px;min-width:%spx;max-width:%spx;text-align:center;vertical-align:top;&amp;quot;&lt;br /&gt;
        local tickDivstyleFormat = &amp;quot;position:absolute;left:%spx;height:10px;width:1px;border-left:1px solid black;&amp;quot;&lt;br /&gt;
        for i = 1, numValues do&lt;br /&gt;
            if not nulOrWhitespace( xlegends[i] ) then&lt;br /&gt;
                setOffset, setWidth = groupBounds( i )&lt;br /&gt;
                -- setWidth = 0.85 * setWidth&lt;br /&gt;
                table.insert( res, mw.text.tag( 'div', { style = string.format( legendDivStyleFormat, setOffset + 5, setWidth - 10, setWidth - 10 ) }, xlegends[i] or '' ) )&lt;br /&gt;
                table.insert( res, mw.text.tag( 'div', { style = string.format( tickDivstyleFormat, setOffset + setWidth / 2 ) }, '' ) )&lt;br /&gt;
            end&lt;br /&gt;
        end&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    function drawChart()&lt;br /&gt;
        table.insert( res, mw.text.tag( 'div', { class = 'chart noresize', style = string.format( 'margin-top:1em;max-width:%spx;', width ) } ) )&lt;br /&gt;
        table.insert( res, mw.text.tag( 'div', { style = string.format(&amp;quot;position:relative;min-height:%spx;min-width:%spx;max-width:%spx;&amp;quot;, height, width, width ) } ) )&lt;br /&gt;
&lt;br /&gt;
        table.insert( res, mw.text.tag( 'div', { style = string.format(&amp;quot;float:right;position:relative;min-height:%spx;min-width:%spx;max-width:%spx;border-left:1px black solid;border-bottom:1px black solid;&amp;quot;, chartHeight, chartWidth, chartWidth ) } ) )&lt;br /&gt;
        local acum = stack and accumulateTooltip and {}&lt;br /&gt;
        for gi, group in pairs( values ) do&lt;br /&gt;
            for i, val in ipairs( group ) do&lt;br /&gt;
                if acum then acum[i] = ( acum[i] or 0 ) + val end&lt;br /&gt;
                drawbar( gi, i, val, acum and acum[i] )&lt;br /&gt;
            end&lt;br /&gt;
        end&lt;br /&gt;
        table.insert( res, '&amp;lt;/div&amp;gt;' )&lt;br /&gt;
        table.insert( res, mw.text.tag( 'div', { style = string.format(&amp;quot;position:absolute;height:%spx;min-width:%spx;max-width:%spx;&amp;quot;, chartHeight, scaleWidth, scaleWidth, scaleWidth ) } ) )&lt;br /&gt;
        drawYScale()&lt;br /&gt;
        table.insert( res, '&amp;lt;/div&amp;gt;' )&lt;br /&gt;
        table.insert( res, mw.text.tag( 'div', { style = string.format( &amp;quot;position:absolute;top:%spx;left:%spx;width:%spx;&amp;quot;, chartHeight, scaleWidth, chartWidth ) } ) )&lt;br /&gt;
        drawXlegends()&lt;br /&gt;
        table.insert( res, '&amp;lt;/div&amp;gt;' )&lt;br /&gt;
        table.insert( res, '&amp;lt;/div&amp;gt;' )&lt;br /&gt;
        createGroupList( res, groupNames, colors )&lt;br /&gt;
        table.insert( res, '&amp;lt;/div&amp;gt;' )&lt;br /&gt;
    end&lt;br /&gt;
&lt;br /&gt;
    extractParams()&lt;br /&gt;
    validate()&lt;br /&gt;
    calcHeightLimits()&lt;br /&gt;
    drawChart()&lt;br /&gt;
    return table.concat( res, &amp;quot;\n&amp;quot; )&lt;br /&gt;
end&lt;br /&gt;
&lt;br /&gt;
return {&lt;br /&gt;
    ['bar-chart'] = barChart,&lt;br /&gt;
    [keywords.barChart] = barChart,&lt;br /&gt;
    [keywords.pieChart] = pieChart,&lt;br /&gt;
}&lt;/div&gt;</summary>
		<author><name>wikipedia&gt;Izno</name></author>
	</entry>
</feed>