Replying to myself since email lists were down. Answer ended being to scale
by 25.4 / 0.28 ~= 90 dpi as per the WMS spec.
We can do what GeoServer does and using the rescale visitor to adjust these
values to higher DPI displays.
--
Jody Garnett
On 24 February 2015 at 23:02, Jody Garnett <jody.garn...@gmail.com> wrote:
> Anyone have an example of RescaleToPixelsFunction?
>
> The generated function list
> <http://docs.geotools.org/latest/userguide/library/main/function_list.html>
> just
> has the following:
>
> *rescaleToPixels(value, defaultUnit, scaleFactor, rescalingMode):
> rescaleToPixels*
>
> -
> *value: String 1:1 required *
> -
> *defaultUnit: Unit 1:1 required *
> -
> *scaleFactor: Double 1:1 required *
> -
> *rescalingMode: RescalingMode 0:1 optional *
> - *rescaleToPixels: String 1:1 required *
>
> Looking at the code I cannot quite figure out what to do, and I have not
> found a test case...
>
> I would expect something like the following to work (for a width I want
> displayed as 2 mm): rescaleToPixel( 2, "mm", 1.0, 1)
>
>
> --
> Jody Garnett
>
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