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Update hocr-proofreader.js #4

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Update hocr-proofreader.js #4

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7 changes: 4 additions & 3 deletions hocr-proofreader.js
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Original file line number Diff line number Diff line change
Expand Up @@ -296,12 +296,13 @@ HocrProofreader.prototype.renderNodesRecursive = function (node, options, parent
if (options.bbox) {
if (className === 'ocrx_word' && options.baselineBbox) {
var word = node.textContent;

// TODO: calculate font-size and y based on bbox, not baseline (font-metrics needed):
var fontsize = options.x_fsize
? options.x_fsize * (options.scan_res?options.scan_res[1]:250) / 72 + 'pt'
: (options.bbox[3] - options.bbox[1]) + "px";//x_fsize and scan_res is not a must param in hocr, using bbox width/length as font size
var textNode = Util.createSvgElem('text', {
'x': options.bbox[0],
'y': parseFloat(options.baselineBbox[3]) + parseFloat(options.baseline[1]),
'font-size': options.x_fsize * options.scan_res[1] / 72, // 1 pt = 1/72 inch
'font-size': fontsize, // 1 pt = 1/72 inch
'textLength': options.bbox[2] - options.bbox[0],
'lengthAdjust': 'spacingAndGlyphs'
});
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