Hi Andreas,
Thanks for the explanation. The problem was that I was using .css
classes to define the stroke-width, that's why the
document.getElementById("park_boundary")
.setAttributeNS(null,"stroke-width",myMainMap.curWidth*0.005);
did not work.
Now it is fine :).
Thanks for the help offer. I have a feeling that I will be needing
it.
Regards,
Csorba
--- In [email protected], "Andreas
Neumann" <[EMAIL PROTECTED]> wrote:
>
> Hi Edith,
>
> if you use the carto.net navigation tools then you already found an
> example demonstrating how to scale stroke-width to stay constant
> after each zoom:
>
> http://www.carto.net/papers/svg/navigationTools/index.svg
>
> Note that the national park boundary is scaled after zoom in such,
> that it always stays at a constant stroke-width.
>
> The navigation tools of carto.net call the function
> "loadProjectSpecific()" after each zoom and pan. Within this
function
> you can reset stroke-widths. The property myMainMap.curWidth always
> contains the current width of the maps viewBox, which helps you to
> calculate stroke-width.
>
> If you need to change multiple elements, it would be best, to
> organize all paths with the same stroke-width in a group. This
allows
> to set the stroke-width attribute just once at the parent group of
> the paths.
>
> If it doesn't work, make sure that the paths elements don't have
> their own stroke-width already set or that they don't have CSS
> classes containing stroke-width definitions. If you attach CSS
> classes to object, they always have precedence.
>
> Hope this helps,
>
> If it doesn't provide an example and we will help you.
>
> Andreas
>
> PS: SVG 1.2 will have a none-scaling stroke-width attribute as part
> of the vector effects. This property is even available in the
mobile
> profile.
>
>
> --- In [email protected],
> "csorba_edith" <csorba_edith@> wrote:
> >
> > Hi,
> > I would like to ask if anybody knows how it is possible to
influence
> > the stroke-width when a feature is zoomed in too much. I want to
> make
> > the stroke of my features descrease proportionally with the zoom
in
> rate.
> > I saw the option used in the Yosemite Hiking map:
> >
> > document.getElementById("park_boundary")
> > .setAttributeNS(null,"stroke-width",myMainMap.curWidth*0.005);
> >
> > But I did not manage to implement it on my map. I changed the
> multiple
> > factor (0.005) but it simple has no effect.
> > Can somebody please explain how it works, or whether there is
> another
> > solution (demonstrate on a working example maybe).
> > Thank you in advance.
> > Regards
> > Csorba
> >
>
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