Maximum number of class styles, 5, has been reached

[Ludwig Max Brinckmann]

I am hitting the threshold because I have the three styles on multiple zoom
levels.
But in Primagis there is now a way of combining the symbolizers, so that it
would equate one style per zoomlevel. I am not sure how this maps down to
mapserver, but I will give it a try tomorrow. Sean is also helping me out
with this. (The worst would be recompiling, so the issue is not exactly
pressing).

Ludwig


On 7/13/06, Steve Lime <Steve.Lime at dnr.state.mn.us> wrote:
>
> Um, er... It was a relatively arbitrary decision. By that I mean I didn't
> have any symbolization use cases that
> required more than 3, let alone 5. So to bump it you'd have to recompile.
> There should be virtually no penalty
> for going to a value of say 10.
>
> That said, you are only describing a case with 3 styles. If that's the
> case then the issue is why are you hitting
> the limit at all? (and the limit of 5 is protecting you). Are you actually
> creating classes with more than 5?
>
> Steve
>
> >>> Ludwig Max Brinckmann <ludwigbrinckmann at GMAIL.COM> 7/13/2006 10:53:12
> AM >>>
> I am using Mapserver through Primagis, which uses mapserver as rendering
> engine.
>
> I have a road network which I want to display at varying zoom levels in
> different ways, with the roads rendered by stacking styles on top of each
> other: eg. a wide black line on top of which comes a narrower yellow line
> on
> top of which comes a narrow black line, which overall gives the impression
> of a divided highway as we know it from paper maps.
>
> I do this at varying zoom levels, but then when rendering I get the
> message
>
> MapServerChildError: insertStyle(): Child array error. Maximum number of
> class styles, 5, has been reached
>
> which comes from classobject.c.
>
> Obviously, I can change this in map.h and recompile.
>
> But is there a good reason for such a low maximum? Is it there to protect
> people from their own errors or is there a significant performance penalty
> or some such?
>
>
> Ludwig
>



-- 
Ludwig M Brinckmann
phone: 020 7254 1181
mobile: 07949 460787
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