Hi Olyster,
yep, the changes would go in the GeoTools gt-render module, found in
"modules/library/render", and in particular
in the LabelCacheImpl class and nearby classes.
You also need to think about how to configure usage of leader lines, e.g.,
vendor options

Cheers
Andrea

On Tue, Apr 2, 2019 at 10:04 AM Olyster <[email protected]> wrote:

> Hi,
>
> leader lines are needed. It's one of the feature that almost every other
> map
> servers have.
>
> I've already coded a few features (none of which is integrated in
> Geoserver)
> so I have a bit of experience customizing Geoserver.
>
> I'm wondering where I should start looking : the drawing of the leader
> lines
> should be done in which module ?
>
> I think the modification should be close to the labeling engine. In fact,
> it
> should be done after the labels are created.
>
> The only thing needed is the drawing of a line between the features (points
> in this case) and the anchor point of their label. I know I'll have to deal
> with the position of the label to avoid "striking" through the label's text
> etc ...
>
> Meanwhile I'll be looking at the labeling module.
>
> Thanks for your help.
>
>
>
> --
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> http://osgeo-org.1560.x6.nabble.com/GeoServer-User-f3786390.html
>
>
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>
>
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Please make sure you read the following two resources before posting to this 
list:
- Earning your support instead of buying it, but Ian Turton: 
http://www.ianturton.com/talks/foss4g.html#/
- The GeoServer user list posting guidelines: 
http://geoserver.org/comm/userlist-guidelines.html

If you want to request a feature or an improvement, also see this: 
https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer


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