VAR/VAR.PdfTools
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PdfTextExtractor: Change Join and Split logic to use max character width of the elements.

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Valeriano A.R.
2017-11-02 13:27:38 +01:00
parent 06de734658
commit 13ba41f851
1 changed files with 9 additions and 5 deletions
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14
VAR.PdfTools/PdfTextExtractor.cs
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@@ -601,7 +601,7 @@ namespace VAR.PdfTools
}
FlushTextElement();
}
private void JoinTextElements()
{
var textElementsCondensed = new List<PdfTextElement>();
@@ -625,10 +625,12 @@ namespace VAR.PdfTools
double neighbourY = neighbour.GetY();
if (Math.Abs(neighbourY - blockY) > 0.001) { i++; continue; }
double maxWidth = neighbour.Characters.Max(c => c.Width);
double neighbourXMin = neighbour.GetX();
double neighbourXMax = neighbourXMin + neighbour.VisibleWidth;
double auxBlockXMin = blockXMin - (elem.FontSize * elem.Font.GetCharWidth('m'));
double auxBlockXMax = blockXMax + (elem.FontSize * elem.Font.GetCharWidth('m'));
double auxBlockXMin = blockXMin - maxWidth;
double auxBlockXMax = blockXMax + maxWidth;
if (auxBlockXMax >= neighbourXMin && neighbourXMax >= auxBlockXMin)
{
_textElements.Remove(neighbour);
@@ -693,13 +695,15 @@ namespace VAR.PdfTools
{
PdfTextElement elem = _textElements[0];
_textElements.Remove(elem);
double maxWidth = elem.Characters.Max(c => c.Width);
int prevBreak = 0;
for (int i = 1; i < elem.Characters.Count; i++)
{
double prevCharEnd = elem.Characters[i - 1].Displacement + elem.Characters[i - 1].Width;
double charSeparation = elem.Characters[i].Displacement - prevCharEnd;
if (charSeparation > (elem.Characters[i - 1].Width * 2))
if (charSeparation > maxWidth)
{
PdfTextElement partElem = elem.SubPart(prevBreak, i);
textElementsSplitted.Add(partElem);