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Msdn Tech >> Software Development for Windows Vista >> Notebook, Tablet PC, and UMPC Development

LineHeight equivalent in InkAnalysis API?

Traditionally, when using InkDivider, you could specify the height of the lines of handwriting you expect in your app. Is there equivalent functionality for InkAnalyzer? Currently it's classifying lines of text as a paragraph when clearly they're a few lines from each other (meaning they should be separate paragraphs). I'm hoping I can remedy this by enforcing a line height property (which I know with high accuracy). I can't specify rows for the user to write on using a RecognizerGuide, because the writing surface expects freeform text. Can I cajole RecognizerGuide somehow into providing a line height hint to the Ink Analyzer?
[701 byte] By [reformist] at [2008-2-8]
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# 1
While there is no equivalent for line height there are better solutions now. If you know the structure of the text you can group the strokes into words, paragraphs, etc. yourself and let the analyzer work within those constraints. This was a surprise to me as well when I first found out that the analyzer nodes can be created by the application to provide guidance. I have yet to add this to my ink application, but Shawn and others in the analyzer group indicated this is valid and supported behavior. If you are recognizing ink to text they recommend leaving the strokes in the anyzer even if you remove them from the display, so adjacent recognition is improved.
MichaelLatta at 2007-9-8 > top of Msdn Tech,Software Development for Windows Vista,Notebook, Tablet PC, and UMPC Development...
# 2

In the InkDivider API, the size of the Ink submitted to the Divider affects the results. The Divider.LineHeight property allows the Divider to internally scale the ink to the correct size, so that even with very large or very small ink can give good results.

This setting does not exist in the InkAnalyzer because the line height is automatically calculated using new technology. The InkAnalyzer uses the structure of the document to determine the scale of the lines within it, making it unnecessary for the application developer to guess it ahead of time.

The solution to your problem may be as easy getting a newer version of InkAnalysis. As we continue development on the product, we’re working to improve accuracy with each release. If you’re using an older version, I’d recommend trying the February CTP (available at http://msdn.microsoft.com/windowsvista/downloads/getthebeta/default.aspx in the SDK for Windows Vista).

ErinDevoy at 2007-9-8 > top of Msdn Tech,Software Development for Windows Vista,Notebook, Tablet PC, and UMPC Development...
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