[mapserver-users] Angle Follow will accept only simple linestring don't MultiLinestring ?

[thomas bonfort]

yes, that's incompatible. use multiple scale-dependant classes for now

On 13 August 2013 18:26, Andrea Peri <aperi2007 at gmail.com> wrote:
> The two label are at different max/min scaledenominator.
> The goal is to have little label size at low scales and bigger font size at
> bigger scales.
>
> However only one lable is active at one scale level.
>
> Is this incompatible with "follow" ?
>
>
>
> 2013/8/13 thomas bonfort <thomas.bonfort at gmail.com>
>>
>> why the double label? they seem to be the same, but in any case
>> multiple labels are not supported for FOLLOW.
>>
>> On 13 August 2013 18:08, Andrea Peri <aperi2007 at gmail.com> wrote:
>> > I'm using spatialite 4.1.1,
>> > so use ogr to access the db.
>> >
>> >   LAYER
>> >     NAME "rt_topogr.50k.etichette.topon_idro_50k"
>> >     STATUS OFF
>> >     EXTENT 1554750.74 4678325.52 1771722.76 4924791.90
>> >     TYPE LINE
>> >     CONNECTIONTYPE OGR
>> >     CONNECTION "/path-to-spatialite/zz_topografica.sqlite"
>> >     DATA "select PK_UID_2, TOPO_OK, GEOMETRY from topon_idro_50k"
>> >     PROJECTION
>> >       "+init=epsg:3003 +towgs84=0,0,0,0,0,0,0"
>> >     END
>> >     METADATA
>> >       "wms_title" "topon_idro_50k"
>> >       "wms_extent" "1554750.74 4678325.52 1771722.76 4924791.90"
>> >     END
>> >     LABELCACHE ON
>> >     MAXSCALEDENOM 60100
>> >     MINSCALEDENOM 1
>> >     CLASS
>> >       NAME ''
>> >       MAXSCALEDENOM 60100
>> >       MINSCALEDENOM 1
>> >       LABEL
>> >         TEXT '[TOPO_OK]'
>> >         COLOR 0 85 255
>> >         OUTLINECOLOR 212 255 255
>> >         OUTLINEWIDTH 1
>> >         MAXSCALEDENOM 60100
>> >         MINSCALEDENOM 40100
>> >         FONT "LiberationSans-Regular"
>> >         TYPE truetype
>> >         SIZE 7
>> >         ANGLE FOLLOW
>> >         OFFSET 15 99
>> >         POSITION auto
>> >         PRIORITY 10
>> >         MAXOVERLAPANGLE 180.0
>> >         BUFFER 1
>> >         FORCE OFF
>> >         PARTIALS FALSE
>> >         MINDISTANCE 200
>> >       END
>> >       LABEL
>> >         TEXT '[TOPO_OK]'
>> >         COLOR 0 85 255
>> >         OUTLINECOLOR 212 255 255
>> >         OUTLINEWIDTH 1
>> >         MAXSCALEDENOM 40100
>> >         MINSCALEDENOM 1
>> >         FONT "LiberationSans-Regular"
>> >         TYPE truetype
>> >         SIZE 9
>> >         ANGLE FOLLOW
>> >         OFFSET 15 99
>> >         POSITION auto
>> >         PRIORITY 10
>> >         MAXOVERLAPANGLE 180.0
>> >         BUFFER 1
>> >         FORCE OFF
>> >         PARTIALS FALSE
>> >         MINDISTANCE 200
>> >       END
>> >     END
>> >   END
>> >
>> >
>> >
>> >
>> > 2013/8/13 thomas bonfort <thomas.bonfort at gmail.com>
>> >>
>> >> there's something strange in your error message... the
>> >> singleSidedBuffer stuff is in GEOS, and should have nothing to do in
>> >> msOGRFileNextShape. post your whole mapfile layer.
>> >>
>> >> On 13 August 2013 17:42, Andrea Peri <aperi2007 at gmail.com> wrote:
>> >> > Hi,
>> >> >
>> >> > I tested trasforming the multilinestring dataset in a linestring
>> >> > dataset
>> >> > but
>> >> > the error is still here.
>> >> >
>> >> > msDrawMap(): Image handling error. Failed to draw layer named
>> >> > 'rt_topogr.50k.etichette.topon_idro_50k'.
>> >> >
>> >> > msOGRFileNextShape(): OGR error. IllegalArgumentException:
>> >> > BufferBuilder::bufferLineSingleSided only accept linestrings
>> >> >
>> >> > So it is not really due to a multilinestring vs linestring question.
>> >> >
>> >> > The quest carry on.
>> >> >
>> >> >
>> >> >
>> >> > 2013/8/13 Andrea Peri <aperi2007 at gmail.com>
>> >> >>
>> >> >> Hi,
>> >> >>
>> >> >> Try.ing to set a label on a MULTILINESTRING dataset.
>> >> >>
>> >> >> I set a label with Follow capability.
>> >> >>
>> >> >>         ANGLE FOLLOW
>> >> >>
>> >> >> But I'm having this error:
>> >> >>
>> >> >>  msOGRFileNextShape(): OGR error. IllegalArgumentException:
>> >> >> BufferBuilder::bufferLineSingleSided only accept linestrings
>> >> >>
>> >> >> Is the Follow compatible with a MultiLinestring dataset or need only
>> >> >> simple linestrings ?
>> >> >>
>> >> >> Thx,
>> >> >>
>> >> >> --
>> >> >> -----------------
>> >> >> Andrea Peri
>> >> >> . . . . . . . . .
>> >> >> qwerty àèìòù
>> >> >> -----------------
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > --
>> >> > -----------------
>> >> > Andrea Peri
>> >> > . . . . . . . . .
>> >> > qwerty àèìòù
>> >> > -----------------
>> >> >
>> >> > _______________________________________________
>> >> > mapserver-users mailing list
>> >> > mapserver-users at lists.osgeo.org
>> >> > http://lists.osgeo.org/mailman/listinfo/mapserver-users
>> >> >
>> >
>> >
>> >
>> >
>> > --
>> > -----------------
>> > Andrea Peri
>> > . . . . . . . . .
>> > qwerty àèìòù
>> > -----------------
>
>
>
>
> --
> -----------------
> Andrea Peri
> . . . . . . . . .
> qwerty àèìòù
> -----------------