[mapguide-users] Street Name display - problem.

[Traian Stanev]

I forgot to mention that if you switch to the DWF viewer, labeling behavior should be the same as (or very similar to) 6.5. 
There is logic in the new algorithm to avoid rendering labels upside down, but it does break down in cases where the algorithm stitches multiple overlapping segments into a circle (or a topologically equivalent loop), which is what I think is happening in the case of Maciej's map.
Looking at this, I do get a couple of ideas how to improve the stitching code to favor outgoing segments rather than ones that loop back or overlap, so I might come up with some fixes in the future.
Also, some labels are smaller because the algorithm determines that the line segment it is labeling is too short to fit a bigger label.
 
 
Traian. 
 
 

	-----Original Message----- 
	From: Andy Morsell [mailto:amorsell at spatialgis.com] 
	Sent: Wed 9/13/2006 11:17 AM 
	To: users at mapguide.osgeo.org 
	Cc: 
	Subject: RE: [mapguide-users] Street Name display - problem.
	
	

	I've seen some similar oddness.  While the labeling algorithm in MGOS is
	much better than 6.5, it should never allow labels to be rendered upside
	down, so perhaps this can at least be addressed.
	
	
	Andy
	
	-----Original Message-----
	From: Traian Stanev [mailto:traian.stanev at autodesk.com]
	Sent: Wednesday, September 13, 2006 6:43 AM
	To: users at mapguide.osgeo.org
	Subject: RE: [mapguide-users] Street Name display - problem.
	
	
	MapGuide open source uses a different labeling algorithm than MG 6.5.
	The labels are actually supposed to curve along the polyline. Also, it will
	attempt to reduce label duplication. In your case it seems like it is
	unsuccessful at stitching together the segments that make up the road, which
	is also causing the wrap-around of some of the labels. My guess is that your
	road data has overlapping parallel polylines which confuse the algorithm
	that stitches together the segments into one long road feature.
	
	Traian
	
	
	-----Original Message-----
	From: Maciej Skorczewski [mailto:maciej.skorczewski at procad.pl]
	Sent: Wednesday, September 13, 2006 2:35 AM
	To: users at mapguide.osgeo.org
	Subject: [mapguide-users] Street Name display - problem.
	
	hi
	
	I make migration from MG 6.5  to OpenSource . And i have problem with
	correct display of street name. (look in attachment or in url)
	
	http://img245.imageshack.us/my.php?image=streetcv0.jpg
	
	- street name are displayed in a circle (it looks like in circle), name are
	in another size and they are not in line.
	
	Street Name are from SDF file.
	
	I use many option in Feature Label (Autodeck MapGuide Studio 2007) but
	rezults is always this same.
	
	Have you any ideas?
	
	ps. I use Autodesk MapGuide Data Migration Tool
	
	--
	Maciej Skorczewski
	
	
	
	
	
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