[mapserver-dev] RFC-60: Label enhancement to skip ANGLE FOLLOW labels with overlapping chars

[Alan Boudreault]

It's updated and online.

Alan

On September 1, 2010 05:03:19 pm Daniel Morissette wrote:
> Hi Jeff, and all,
> 
> Forget the inside vs outside curve stuff. As we looked more into it we
> realized that this distinction was not relevant.
> 
> I have updated the RFC to reflect the outcome of this discussion,
> basically enabling the filtering by default with a default value of 22.5
> degrees matching what GeoServer does.
> 
> The updated RFC should show up online in the next hour or two at
> http://mapserver.org/development/rfc/ms-rfc-60.html
> 
> We've also added one more example showing the bboxes of chars in a
> street map label to help us understand why the labels look the way they do:
> http://trac.osgeo.org/mapserver/attachment/ticket/3523/maxoverlapangle-2.pn
> g
> 
> Alan: Please update the RFC with the list of files impacted and then
> we'll call for a vote if there are no more comments.
> 
> Daniel
> 
> Jeff McKenna wrote:
> > There was a discussion on IRC today on this: GeoServer does not
> > differentiate between outside vs inside overlapping labels, it just
> > discards any label with an overlap angle greater than 22.5 degrees.
> >
> > I have to admit that I have read the descriptions several times for
> > negative vs positive MAXOVERLAPANGLE and it is still confusing to me. If
> > we do enable both, can you define better what the "inside" and "outside"
> > of a line is?
> >
> > thanks.
> >
> > -jeff
> >
> > On 10-08-27 6:03 PM, Daniel Morissette wrote:
> >> Jeff, could you try to find out what GeoServer does? Does it exclude
> >> both cases, or only the labels that overlap on the inside of the curve?
> >
> > _______________________________________________
> > mapserver-dev mailing list
> > mapserver-dev at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/mapserver-dev
> 

-- 
Alan Boudreault
Mapgears
http://www.mapgears.com