drawQuery for a single layer

Aaron Koning aaronkoning at GMAIL.COM
Wed Feb 1 20:57:19 EST 2006


If you only want features from one layer highlighted, then only query that
layer. Drawquery only highlights features that are 'selected'. What does
your query look like?

Aaron

On 2/1/06, Stefan Schwarzer <Stefan.Schwarzer at grid.unep.ch> wrote:
>
> Hi there,
>
> as far as I understand the php-mapscript manual, it should be
> possible to highlight only a single layer upon a query. In my case it
> highlights at least two. That is, if the user draws a rectangle, then
> in the next map the country boundaries touched and included by the
> rectangle will be highlighted as well as the points (for cities for
> example). How can I avoid this and limit the highlighting to only one
> single layer?
>
> In the moment I have this:
>
>                                 $image_map = $map -> drawQuery();
>                                 $url_map = $image_map -> saveWebImage();
>
> I would have thought it should be more something like this:
>
>                                 $mapLayer = ...specific layer...;
>                                 $image_map = $map -> $mapLayer ->
> drawQuery();
>                                 $url_map = $image_map -> saveWebImage();
>
> But that does not work.
>
> Thanks for any help!
>
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