On 30/01/13 17:22, Chris Haste wrote:
>
> Hello List,
>
>
>
> I want to use an external SVG symbol as a mark and I'm using the CSS
> module for my styling, although I don't think that makes any
> difference to this question.
>
>
>
> The SVG represents a pin and I want to position the pin so that the
> base of the pin is drawn at the position for that point, but the pins
> all seem to be drawn quite away to the left of the actual position.
>
>
>
> What considerations do I need to take into account in order to be able
> to accurately position the SVG symbol relative to the reference
> coordinate?
>
>
what you have to achieve is that the 'middle point' of your SVG is the
point you want to align with the depicted point on the map. if this is
not the case for the natural shape of the SVG, you might want to add a
non-visible element to the SVG itself (say, a circle that encoloses all
of the SVG, with the circles center point being your wanted center
point), and use the SVG that way.
from my experience, the SLD rendering engine will try to 'center' the
SVG so that its center point is the point of reference being drawn. (and
the CSS styling is based on the SLD styling)
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