javascript - Error prerendering server of a pie chart with D3.js in svg format -


i'm using library d3.js draw pie chart.

this code i'm testing

to create chart use prerendering server side (nodejs) using gulp, , module npm jsdom, save html file. , works.

// html saving   // window jsdom obj var innerhtml = window.document.documentelement.innerhtml; var parser = require('parse5').parser,     parser = new parser(),     dom = parser.parse(htmlstring); save(xmlserializer.serializetostring(dom)); // save file

but need save in svg format, use these functions convert html xml svg.

    // svg saving    // window jsdom obj        var body = window.document.queryselector("html");        var svg = body.getelementsbytagname("svg")[0];        var svg_xml = xmlserializer.serializetostring(body);        save(vkbeautify.xml(svg_xml));// save file

(npm modules: vkbeautify,xmlserializer )

i have done several graphics without problems, except pie chart: html perfect, svg rendered badly.

outputs:

html output svg output

what cause? how can fix?

it's lower/upper case issue. somewhere in code must lowercasing whole thing. result, path descriptor in output looks this:

m6.123031769111886e-15,-100a100,100 0 1,1 -3.8285889215894375e-14,100l0,0z

whereas need work is

m-95.10565162951534,-30.901699437494813a100,100 0 0,1 7.044813998280223e-14,-100l0,0z

in svg, there big difference between 2 (lowercase means "relative last position"; uppercase means "absolute coordinates).


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