private List <HeadingItem> findHeadings(List <Stroke> horizontalLines, ContextNodeCollection contextNodeCollection)
{
//Group lines together into "Heading Groups"
List <HeadingItem> headings = new List <HeadingItem>();
foreach (Stroke node1 in horizontalLines)
{
List <HeadingItem> intersectHeadings = new List <HeadingItem>();
foreach (HeadingItem heading in headings)
{
bool intersectsAny = false;
foreach (Stroke node2 in heading.lines)
{
Rect first = node1.GetBounds();
Rect second = node2.GetBounds();
if (Math.Abs(first.Y - second.Y) < Constants.HEADING_LINE_DISTANCE_MAX &&
Math.Abs(first.X - second.X) < Constants.HEADING_LINE_DISTANCE_MAX)
{
intersectsAny = true;
break;
}
}
if (intersectsAny)
{
intersectHeadings.Add(heading);
}
}
HeadingItem resultHeading = new HeadingItem();
foreach (HeadingItem heading in intersectHeadings)
{
resultHeading.lines.AddRange(heading.lines);
headings.Remove(heading);
}
resultHeading.lines.Add(node1);
headings.Add(resultHeading);
}
//Find words that associate to Heading Groups
foreach (ContextNode node in contextNodeCollection)
{
if (node.Strokes.Count == 0)
{
continue;
}
Rect underlineBounds = node.Strokes.GetBounds();
if (node is InkWordNode)
{
if ((node as InkWordNode).GetBaseline() != null && (node as InkWordNode).GetBaseline().Count > 0)
{
double baseline = (node as InkWordNode).GetBaseline()[0].Y;
underlineBounds.Y = baseline;
}
InkWordNode word = node as InkWordNode;
foreach (HeadingItem heading in headings)
{
if (heading.intersects(underlineBounds))
{
heading.text.Add(word);
break;
}
}
}
}
//Remove bad headings
List <HeadingItem> actualHeadings = new List <HeadingItem>();
foreach (HeadingItem heading in headings)
{
if (heading.text.Count > 0)
{
actualHeadings.Add(heading);
}
}
return(actualHeadings);
}
private List<HeadingItem> findHeadings(List<Stroke> horizontalLines, ContextNodeCollection contextNodeCollection)
{
//Group lines together into "Heading Groups"
List<HeadingItem> headings = new List<HeadingItem>();
foreach (Stroke node1 in horizontalLines)
{
List<HeadingItem> intersectHeadings = new List<HeadingItem>();
foreach (HeadingItem heading in headings)
{
bool intersectsAny = false;
foreach (Stroke node2 in heading.lines)
{
Rect first = node1.GetBounds();
Rect second = node2.GetBounds();
if (Math.Abs(first.Y - second.Y) < Constants.HEADING_LINE_DISTANCE_MAX &&
Math.Abs(first.X - second.X) < Constants.HEADING_LINE_DISTANCE_MAX)
{
intersectsAny = true;
break;
}
}
if (intersectsAny)
{
intersectHeadings.Add(heading);
}
}
HeadingItem resultHeading = new HeadingItem();
foreach (HeadingItem heading in intersectHeadings)
{
resultHeading.lines.AddRange(heading.lines);
headings.Remove(heading);
}
resultHeading.lines.Add(node1);
headings.Add(resultHeading);
}
//Find words that associate to Heading Groups
foreach (ContextNode node in contextNodeCollection)
{
if (node.Strokes.Count == 0)
{
continue;
}
Rect underlineBounds = node.Strokes.GetBounds();
if (node is InkWordNode)
{
if ((node as InkWordNode).GetBaseline() != null && (node as InkWordNode).GetBaseline().Count > 0) {
double baseline = (node as InkWordNode).GetBaseline()[0].Y;
underlineBounds.Y = baseline;
}
InkWordNode word = node as InkWordNode;
foreach (HeadingItem heading in headings)
{
if (heading.intersects(underlineBounds))
{
heading.text.Add(word);
break;
}
}
}
}
//Remove bad headings
List<HeadingItem> actualHeadings = new List<HeadingItem>();
foreach (HeadingItem heading in headings)
{
if (heading.text.Count > 0)
{
actualHeadings.Add(heading);
}
}
return actualHeadings;
}
