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update RecursiveXYCut code with RecursiveXYCutOptions

BobLd
2020-06-20 15:55:19 +01:00
parent e7162b0e1a
commit 67bba2a40f
1 changed files with 17 additions and 7 deletions
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24
Document-Layout-Analysis.md

@@ -136,23 +136,33 @@ The method can be tailored by providing a __minimum block width__, and __horizon
- Minimum block width is set to 1/3 of page width:
```csharp
var blocks = RecursiveXYCut.Instance.GetBlocks(words, page.Width / 3.0);
var blocks = RecursiveXYCut.Instance.GetBlocks(words,
new RecursiveXYCut.RecursiveXYCutOptions()
{
MinimumWidth = page.Width / 3.0
});
```
- Average of the page letters' height and width is used as gap size (the values won’t change), and minimum block width is set to 1/3 of page width:
```csharp
var blocks = RecursiveXYCut.Instance.GetBlocks(words,
page.Width / 3m,
page.Letters.Average(l => l.GlyphRectangle.Width),
page.Letters.Average(l => l.GlyphRectangle.Height));
new RecursiveXYCut.RecursiveXYCutOptions()
{
MinimumWidth = page.Width / 3.0,
DominantFontWidthFunc = _ => page.Letters.Average(l => l.GlyphRectangle.Width),
DominantFontHeightFunc = _ => page.Letters.Average(l => l.GlyphRectangle.Height)
});
```
- A function that will be applied to each block letters’ height and width can also be provided. Here we use the average and minimum block width is set to 1/3 of page width:
```csharp
var blocks = RecursiveXYCut.Instance.GetBlocks(words,
page.Width / 3m,
width => width.Average(),
height => height.Average());
new RecursiveXYCut.RecursiveXYCutOptions()
{
MinimumWidth = page.Width / 3.0,
DominantFontWidthFunc = letters => letters.Select(l => l.GlyphRectangle.Width).Average(),
DominantFontHeightFunc = letters => letters.Select(l => l.GlyphRectangle.Height).Average()
});
```
### Results