[ka-Map-users] Re: Partial labels

[ramesh karra]

Thanks again paul!

This is certainly not a problem about label at the
edge of the map. The point is in the middle of a map
and most likely is tile boundary problem because the
label is at the tile boundary. But, as I mentioned
before, not all labels in the tile boundary gets
clipped.

I will try to reproduce it with a small data set and
will send you the data and the map file in couple of
days. If it is OK with you I will directly send you
the data(and not to the list).

Thanks
Ramesh

--- Paul Spencer <pspencer at dmsolutions.ca> wrote:

> Hi Ramesh,
> 
> The root of the problem is that mapserver renders
> stuff right up to  
> the edge of the map.  To fix rendering issues with
> thick lines using  
> 'circle' symbol (for instance), we have to render a
> slightly bigger  
> image and clip out the center of it to get lines to
> match up (among  
> other things).  This causes a problem with point
> symbols and labels  
> that are rendered close to the edge of the map.  In
> MapServer 4.6,  
> metadata was introduced to prevent text and symbols
> rendering too  
> close to the edge of the map.  This is controlled in
> ka-Map's  
> config.php file with $metaBuffer (default 10
> pixels).
> 
> MapServer 4.6 (final) should have support for the
> metadata that  
> supposedly fixes this problem.  However, I have seen
> some examples of  
> places where the label does get vertically or
> horizontally clipped at  
> a tile boundary.  I can't reliably reproduce the
> problem so it is  
> hard to fix.
> 
> Do you have a small dataset that I could use to
> reproduce the problem  
> with a copy of your configuration?
> 
> You can use the gimp to capture screenshots in
> linux.  There are  
> probably a ton of other ways.
> 
> Cheers
> 
> Paul
> 
> 
> On 21-Mar-06, at 3:59 PM, ramesh karra wrote:
> 
> > Thanks for the quick response Paul!
> >
> > I am using mapserver 4.6 and the class drawing the
> > label is
> > CLASS
> >       NAME       "Points"
> >
> >       STYLE
> > 	SYMBOL       7
> >         COLOR        225 225 225
> >         OUTLINECOLOR 255 000 000
> > 	SIZE	     0
> >       END
> >
> >       LABEL
> > 	FORCE TRUE
> >         COLOR 0 0 0
> >         SHADOWCOLOR 255 255 255
> >         SHADOWSIZE 1 1
> >         TYPE TRUETYPE
> >         FONT verdana
> >         SIZE 8
> >         ANTIALIAS TRUE
> >         POSITION CC
> >         PARTIALS FALSE
> >         MINDISTANCE 0
> >         BUFFER 0
> >       END
> >     END
> >
> > How do I capture the screenshot in linux?
> >
> > Thanks
> > Ramesh
> >
> > --------------------
> > Ramesh,
> >
> > there can definitely be a problem, but it actually
> > depends more on
> > mapscript version.  What version of mapserver are
> you
> > using?
> >
> > Also, it may be pertinent to know what your label
> > style is for the
> > layer that is having problems.
> >
> > Finally, can you send a screenshot of the problem?
> >
> > Cheers
> >
> > Paul
> >
> > On 21-Mar-06, at 2:52 PM, ramesh karra wrote:
> >
> >> Hi,
> >>
> >> I have kaMap ver 0.2 (Feb 7, 2006) and sometimes
> I
> > see
> >> partial labels. This seem to happen when the
> label
> > is
> >> split between two tiles. But it does not happen
> > every
> >> time.
> >>
> >> Is this a known issue? Any solutions?
> >>
> >> Thanks
> >> Ramesh
> >>
> >
> >
> > __________________________________________________
> > Do You Yahoo!?
> > Tired of spam?  Yahoo! Mail has the best spam
> protection around
> > http://mail.yahoo.com
> 
>
+-----------------------------------------------------------------+
> |Paul Spencer                          
> pspencer at dmsolutions.ca   |
>
+-----------------------------------------------------------------+
> |Applications & Software Development                
>              |
> |DM Solutions Group Inc                
> http://www.dmsolutions.ca/|
>
+-----------------------------------------------------------------+
> 
> 
> 
> 
> 


__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com