[Qgis-developer] Label backgrounds (shape, SVG, drop shadow)

[Tim Sutton]

Hi

On Sat, Mar 30, 2013 at 1:32 PM, Larry Shaffer <larrys at dakotacarto.com> wrote:
> Hi,
>
> In an effort to bring a basic label background feature into 2.0 before for
> the freeze, I figured out a good approach that makes adding label
> backgrounds much easier (better late than never, I suppose) [0]. This means
> that adding SVGs and drop shadows for label backgrounds is only an extra
> couple of days of work.
>
> Here's a preliminary gui setup [1] (not all may be implemented, but most can
> easily be).
>
> An example of generic rounded-corner rectangles (a la web mapping and many
> road shields) with a bit of x/y offset to nicely center the text [2].
>
> And, an example of the 'centering' of the background relative to the label
> contents (background rotated 90 deg relative to text) [3], regardless of
> label's offset placement (see pink-text label next to point feature). This
> is a crucial feature for integrating many types of backgrounds.
>
> Both examples also show one issue: while labels don't overlap due to
> collision management, their backgrounds might overlap each other or
> previously drawn label text. I believe this is fixable, though I don't know
> how long it will take, off hand.
>
> So... basically, I'm asking those who make decisions whether I can work for
> another week on this feature, for inclusion in 2.0.
>

+1 To allow an exception to the freeze for this.

Regards

Tim

> [0] https://github.com/dakcarto/Quantum-GIS/commits/labeling_bkgrd-symbols_3
> [1] http://drive.dakotacarto.com/qgis/labeling_background-gui.png
> [2] http://drive.dakotacarto.com/qgis/labeling_background-rounded.png
> [3] http://drive.dakotacarto.com/qgis/labeling_background-rotation.png
>
> Regards,
>
> Larry Shaffer
> Dakota Cartography
> Black Hills, South Dakota
>
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>



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