Oh, good those are good ideas. Thank-you very much!
On Sep 21, 2:06 am, Mike Williams <[email protected]> wrote:
> There's no river routing in the API. I guess there's not much call for
> aquatic SatNav. The routing database is created by companies working
> with SatNav devices.
>
> For wide rivers, do store the data as polygons, not a pair of polylines.
> Code exists for determining if a click is inside a polygon [Google
> clickable polygons, and EPoly.Contains()].
>
> Rather than drawing both banks for narrow rivers you might consider
> doing what Google do with roads. Record only the centre line, and snap
> the user clicks to that line. That saves half the data entry for narrow
> rivers. Or draw the centre line, then fatten it into a thin polygon and
> treat it like a wide river.
>
> --
> Mike Williamshttp://econym.org.uk/gmap
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