Anti Aliasing

[Zhonghai Wang]

Hi Vincent,

have you got a nice map image with the ANTIALIAS TRUE ?

if so , can you give me a clue how to do that?


On 5/16/06, Vincent Schut <schut at sarvision.nl> wrote:
>
> Steve Lime wrote:
> > You need a couple of other things:
> >
> >   - a 24-bit output format (e.g. IMAGETYPE PNG24)
> >   - alpha blending turned on for the layer (e.g. TRANSPARENCY ALPHA)
> >
> > That should get it working...
>
> To chime in:
> But what if I want to have antialiasing *and* semi-transparency? How
> would I define e.g. a opacity of 60 when I already have 'transparency
> alpha' in my layer?
>
> Vincent.
>
> >
> > Steve
> >
> > Stephen Lime
> > Data & Applications Manager
> >
> > Minnesota DNR
> > 500 Lafayette Road
> > St. Paul, MN 55155
> > 651-259-5473
> >>>> ramesh karra <karrarm at YAHOO.COM> 05/15/06 6:49 PM >>>
> > Hi,
> >
> > I have added 'ANTIALIAS TRUE' to all my STYLE objects
> > but I do not see any difference in the map that's
> > displayed. I was hoping to see smooth lines but there
> > was no difference in the way lines(representing roads)
> > are drawn with or without anti-aliasing. Is this the
> > expected behavior? How can I get smooth lines?
> >
> > My layer is defined as follows:
> >
> > LAYER
> >     NAME         roads
> >     DATA         droad1
> >     STATUS       OFF
> >     TYPE         LINE
> >
> >     PROJECTION
> >        "init=epsg:4326"
> >     END
> >
> >     CLASS
> >       NAME       "Roads"
> >       MAXSCALE     80000
> >       MINSCALE     20000
> >       STYLE
> >       ANTIALIAS    TRUE
> >       COLOR        150 150 150
> >       WIDTH        3
> >       END
> >       STYLE
> >       ANTIALIAS    TRUE
> >         COLOR      255 255 255
> >       WIDTH        1
> >       END
> >     END
> > END
> >
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