private void ParseCharactersForLine(string title)
{
if (title == null)
{
return;
}
title = title.Replace("x_bboxes", "");
string[] coords = title.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
string bbox = "";
string word = "";
HWord w = new HWord();
int charPos = 0;
for (int i = 0; i < coords.Length; i++)
{
if (i % 4 == 0 && i != 0)
{
HChar c = new HChar();
BBox b = new BBox(bbox, _dpi);
c.BBox = b;
char[] chars = _currentLine.Text.ToCharArray();
c.Text = chars[charPos].ToString();
if (c.Text != " ")
{
word += c.Text;
if (w.BBox == null)
{
w.BBox = new BBox(_dpi);
{
w.BBox.Height = c.BBox.Height;
w.BBox.Left = c.BBox.Left;
w.BBox.Top = _currentLine.BBox.Top;
}
}
}
else
{
if (w.Characters.Count > 0)
{
HChar previouschar = w.Characters.OrderBy(x => x.ListOrder).Last();
w.BBox.Width = previouschar.BBox.Left + previouschar.BBox.Width - w.BBox.Left;
w.Text = word + " ";
w.BBox.Height = w.Characters.Select(x => x.BBox.Height).Max();
w.CleanText();
w.CleanText();
if (w.Characters.Count > 0 && w.Text != null && w.Text.Trim() != "")
{
_currentLine.Words.Add(w);
}
w = new HWord();
word = string.Empty;
}
}
bbox = string.Empty;
if ((int)c.BBox.Left != -1)
{
c.ListOrder = charPos;
w.Characters.Add(c);
}
charPos += 1;
}
bbox += coords[i] + " ";
}
if (w.Characters.Count <= 0 || word.Trim() == string.Empty)
{
return;
}
w.Text = word;
w.CleanText();
_currentLine.Words.Add(w);
}
private void ParseNodes(HtmlNodeCollection nodes)
{
foreach (HtmlNode node in nodes.ToList())
{
if (node.HasAttributes)
{
string className = string.Empty;
string title = string.Empty;
string id = string.Empty;
if (node.Attributes["class"] != null)
{
className = node.Attributes["class"].Value;
}
if (node.Attributes["title"] != null)
{
title = node.Attributes["title"].Value;
}
if (node.Attributes["Id"] != null)
{
id = node.Attributes["Id"].Value;
}
switch (className)
{
case "ocr_page":
_currentPage = new HPage();
_currentPage.ClassName = className;
_currentPage.Id = id;
ParseTitle(title, _currentPage);
_currentPage.Text = node.InnerText;
_hDoc.Pages.Add(_currentPage);
break;
case "ocr_par":
_currentPara = new HParagraph();
_currentPara.ClassName = className;
_currentPara.Id = id;
ParseTitle(title, _currentPara);
_currentPara.Text = node.InnerText;
_currentPage.Paragraphs.Add(_currentPara);
break;
case "ocr_line":
_currentLine = new HLine(_dpi);
_currentLine.ClassName = className;
_currentLine.Id = id;
ParseTitle(title, _currentLine);
_currentLine.Text = node.InnerText;
if (_currentPage == null)
{
_currentPage = new HPage();
}
if (_currentPara == null)
{
_currentPara = new HParagraph();
_currentPage.Paragraphs.Add(_currentPara);
}
_currentPara.Lines.Add(_currentLine);
break;
case "ocrx_word":
HWord w = new HWord();
w.ClassName = className;
w.Id = id;
ParseTitle(title, w);
w.Text = node.InnerText;
_currentLine.Words.Add(w);
break;
case "ocr_word":
HWord w1 = new HWord();
w1.ClassName = className;
w1.Id = id;
ParseTitle(title, w1);
w1.Text = node.InnerText;
_currentLine.Words.Add(w1);
break;
case "ocr_cinfo": //cuneiform only
ParseCharactersForLine(title);
break;
}
}
ParseNodes(node.ChildNodes);
}
}
