[mapserver-users] Label frame offset with leader line

thomas bonfort thomas.bonfort at gmail.com
Thu Sep 15 07:36:58 PDT 2016


It's a bug, you can open an issue for it.

--
thomas

On 15 September 2016 at 16:19, Stephen O'Connell
<stephen.oconnell at navigraph.com> wrote:
> Hello.
>
> I have a problem with label rendering Mapserver, and I haven't been able to
> find a solution myself.
>
> I'm rendering point labels with GEOMTRANSFORM 'labelpoly' to get a frame
> around the label. To get more labels to show, I have enabled LEADER so that
> labels are more likely to be visible but farther away from the point.
> However, when a label is moved away and attached with a LEADER, then the
> frame around the label gets an offset both vertically and horizontally. See
> the image https://www.dropbox.com/s/hwbt370d8371oqw/labeloffset.png?dl=0
> where the bottom left label has a leader, but the green frame is moved a few
> pixels down and to the right.
>
> Is the combination of LEADER and GEOMTRANSFORM 'labelpoly' not supported, or
> am I doing something wrong?
>
> Here is a section of my mapfile for the relevant layer:
>
> LABEL
>     WRAP "!"
>     ALIGN center
>     TEXT ('[name]' + "!D116.7 " + '[ident]')
>     MAXSCALEDENOM 2600064
>     POSITION auto
>     PARTIALS false
>     SIZE 8
>     COLOR 100 150 100
>     TYPE truetype
>     FONT vera
>     FORCE false
>     STYLE
>         GEOMTRANSFORM 'labelpoly'
>         OFFSET 2 2
>         COLOR 150 200 150
>         OUTLINECOLOR 150 200 150
>         WIDTH 1
>         OPACITY 100
>     END
>     STYLE
>         GEOMTRANSFORM 'labelpoly'
>         COLOR 255 255 255
>         OUTLINECOLOR 150 200 150
>         WIDTH 1
>         OPACITY 95
>     END
> END
> LEADER
>     GRIDSTEP 40
>     MAXDISTANCE 1000
>     STYLE
>         COLOR 150 200 150
>         WIDTH 2
>     END
> END
>
>
> I appreciate any assistance or comments.
>
> Kind regards,
>
> Stephen
>
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