[Mapserver-users] asymmetric lines

[Stepan Kafka]

This is not BUG because symbols are placed cartographically (e.g. if you
have bicycle or car symbol along the line, the orientation has to be +- to
north). For oriented symbols (arrows etc) the GAP < 0 may be used as
mentioned below. Have you tried it?
Plese, let me know if it doesn't work.

Stepan Kafka

> -----Pùvodní zpráva-----
> Od: woodbri at swoodbridge.com [mailto:woodbri at swoodbridge.com]
> Odesláno: 24. února 2004 2:51
> Komu: youssef chamoun; mapserver-users at lists.gis.umn.edu; Stepan Kafka
> Pøedmìt: RE: [Mapserver-users] asymmetric lines
>
>
> FYI, there is a bug that I submitted regarding TTF symbols that might
> impact this. See
>
> http://mapserver.gis.umn.edu/bugs/show_bug.cgi?id=573
>
> In summary the symbol flips 180 degrees depending on the angle and
> slope of the the line segment.
>
> If you are running into this problem you might want to post a note to
> the list or the bug so we know.
>
> Thanks,
>   -Steve
>
> On 23 Feb 2004 at 9:06, Stepan Kafka wrote:
>
> > Hi Youssef,
> >   you may use two approaches:
> >
> > 1) offset lines. If you set OFFSET -99 <number> (eg -99 5) for
> line symbols,
> > the result line is parallel to original one. Stacking symbols
> with multiple
> > STYLEs you can achieve desired effect. (There is only simple (but quick)
> > algorithm used for offseting, so there may be some problems with very
> > tortuous lines)
> >
> > 2) Truetype symbols. If you set GAP < 0 (eg. GAP -15), the symbols are
> > oriented in "as digitized" orientation. Then you may set
> POSITION (UC, LC,
> > UR, ..) to get different drawing effects.
> >
> > These functionality is available from 3.6.0 (?) version.
> >
> > Stepan Kafka
> >
> > > -----P vodn? zpr va-----
> > > Od: mapserver-users-admin at lists.gis.umn.edu
> > > [mailto:mapserver-users-admin at lists.gis.umn.edu]za u ivatele youssef
> > > chamoun
> > > Odesl no: 20. Lnora 2004 16:33
> > > Komu: mapserver-users at lists.gis.umn.edu
> > > P edm t: [Mapserver-users] asymmetric lines
> > >
> > >
> > > Hello,
> > >
> > > can anyone please help me on a way to create asymmetric lines?
> > >
> > > Thank you.
> > >
> > > Youssef Chamoun
> > >
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>
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