31 lines
1.2 KiB
JavaScript
31 lines
1.2 KiB
JavaScript
// http://bl.ocks.org/rokotyan/0556f8facbaf344507cdc45dc3622177
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// Set-up the export button
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function set_export_button(svg, button_id, output_id) {
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d3.select('#'+button_id).on('click', function(){
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//get svg source.
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var serializer = new XMLSerializer();
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var source = serializer.serializeToString(svg.node());
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console.log(source);
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source = source.replace(/^<g/, '<svg');
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source = source.replace(/<\/g>$/, '</svg>');
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//add name spaces.
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if(!source.match(/^<svg[^>]+xmlns="http\:\/\/www\.w3\.org\/2000\/svg"/)){
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source = source.replace(/^<svg/, '<svg xmlns="http://www.w3.org/2000/svg"');
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}
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if(!source.match(/^<svg[^>]+"http\:\/\/www\.w3\.org\/1999\/xlink"/)){
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source = source.replace(/^<svg/, '<svg xmlns:xlink="http://www.w3.org/1999/xlink"');
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}
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//add xml declaration
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source = '<?xml version="1.0" standalone="no"?>\r\n' + source;
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//convert svg source to URI data scheme.
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var url = "data:image/svg+xml;charset=utf-8,"+encodeURIComponent(source);
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//set url value to a element's href attribute.
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document.getElementById(output_id).href = url;
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});
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}
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