text-fill-opacity ?, text-halo-opacity?

[Matsglobetrotter]

I would like the label of sub county to appear to the same level opacity as I have done the county borders. Thus it is text that I would like to have but it should not feature as prominent as other text. Having the opacity styles that I mention above would be a great addition for that purpose.

[ajashton]

Currently the text opacity feature in Mapnik seems to apply the same value to both halo and fill, which is may or may not not be what you want. I've added support for it to Carto anyway, and will investigate whether this is the desired behavior upstream.

For now, you can specify separate halo and fill opacity using the rgba() color format in the text-fill and text-halo-fill properties. For example:

#world {
    text-name: "[NAME]",
    text-face-name: "DejaVu Sans Book";
    text-fill: rgba(128,0,32,0.8);
    text-halo-radius:2;
    text-halo-fill: rgba(255,255,255,0.4);
}

[Matsglobetrotter]

Thanks for the tip on the workaround. I have already tried it and it does the trick. Look forward to see it being discussed upstream. The other solution would ensure a more consistent style convention.

[tmcw]

Great - remaining tasks here are upstream.

[ajashton]

Upstream ticket opened here: http://trac.mapnik.org/ticket/765