On Sun, Jan 29, 2006 at 11:37:53PM +0100, Armin Burger wrote:
> Luca,
>
> I had already similar problems with raster layers like satellite images
> and another layer like slopes, dem etc. It could also be vector layers
> if they are not transparent.
>
> I'm currently re-writing the part for the legend and layer display. One
> simplistic solution for that is to define layers that should mutually be
> disabled. This can be done by using radio buttons for them instead of
> checkboxes.
>
> There are maybe slight problems with regard to aesthetics and
> consistency. First the radio buttons align different on Firefox that the
> checkboxes. And also it might be confusing for users if you mix them.
> But nevertheless, one can think about to use it. I attached 2
> screenshots that show how it looks like. If you group the raster layers
> together it might look acceptable.
>
> I will have to do some more testing. The PHP part is mainly finished,
> just some Javascript that needs some fine-tuning. Then I will make a
> development snapshot available for testing and hopefully it will go soon
> into final releases.
Another solution could be to use the key REQUIRES in the layer
definition (seei [1]):
Something like
REQUIRES "![orthophotos]"
should do it if you want an layer be rendered only if Orthophotos
are switched off.
Silke
[1] http://mapserver.gis.umn.edu/docs/reference/mapfile/layer
>
> Armin
>
> luca marletta wrote:
> >Hi list. I'm exited with all this new code and feature you are
> >writing. Just worry for our friend Armin that must play the dirty work
> >of merge all together :-)). Be a leader as some disadvantages ;-)
> >
> >This my question asking for an hint.
> >I'm wondering if having 2 heavy rasters for the same scale and region
> >I can get more performance find the way to switch from one to another
> >in the layers activation or just overwrite one with another to show
> >the first or the second as I do now.
> >
> >In my case one raster is the map and the second is the orthofoto of same
> >area.
> >
> >The idea is that mapserver takes 90% of total time for building the
> >map (Armin benchmark) so why process 2 rasters for overwrite one
> >totally.
> >
> >Maybe is a silly question because there is an obvious way to do it but
> >I don't know it so some one could be kind with me please.
> >
> >Is there a way to have in Layers tab just one option that switch from
> >a raster layer to another?
> >
> >--
> >luca marletta
> >
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> >
> >
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--
Silke Reimer : www.intevation.de/~silke | GISpatcher: www.gispatcher.de
Intevation GmbH: www.intevation.de | Thuban : thuban.intevation.org
Georgstr.4 : 49074 Osnabr?ck | FreeGIS : www.freegis.org
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