Non-existant Legend Functionality?

[Abe Gillespie]

Will do. Thank you.

-Abe

On 9/1/05, Stephen Woodbridge <woodbri at swoodbridge.com> wrote:
> 
> I would just copy and paste the relevant parts of this thread into a new
> bug and select it as a feature request.
> 
> http://mapserver.gis.umn.edu/bugs/index.cgi
> 
> -Steve
> 
> Abe Gillespie wrote:
> > Yep, should be simple enough to keep a tab on the visible layers as
> > they're drawn. Well, I'll just stick to querying each layer by hand for
> > now. Where can I go to add a feature request?
> >
> > Do we also want to put this into the MapScript API where each class can
> > have something like:
> >
> > $class->hasDataInCurrentMapExtents; // Or something more concise. :)
> >
> > And layers have the equivalent where it's false if each of it's classes
> > are false for the above attribute.
> >
> > Thanks.
> > -Abe
> >
> > On 9/1/05, *Stephen Woodbridge* <woodbri at swoodbridge.com
> > <mailto:woodbri at swoodbridge.com>> wrote:
> >
> > Abe,
> >
> > I think this would be a very valuable extension and it would not be that
> > hard to implement. All that you would need is a bit array that is zeroed
> > before a draw request where each bit represents a unique layer-class,
> > then as objects are drawn you would OR 1 into the bit array for the
> > layer-class index if/when an object is drawn. Then you would need to be
> > able to query the bit array for a given layer-class index to see if it
> > was drawn.
> >
> > -Steve W.
> >
> > Abe Gillespie wrote:
> > > I build my legends by hand with PHP code because the native
> > > functionality just isn't good enough for what I
> > need. Unfortunately I
> > > still can't get it perfect because of what I think is missing
> > MapServer
> > > functionality. Currently my legends are just too big for
> > printing. Is
> > > there a way to tell whether a certain class is visible w/i the
> > current
> > > view? Now I don't mean whether the class is within it's scale
> > limits
> > > (MIN or MAXSCALE). Rather can one tell if a layer / class has
> > any data
> > > w/i the current view. For instance, I may have a fire hydrant
> > layer w/o
> > > any scale dependencies. But I might be zoomed into a field way
> > out in
> > > the country side. So, yeah, technically the layer can be seen at
> > that
> > > scale, but no fire hydrants are actually in the view.
> > >
> > > If this doesn't exist, shall I issue a feature request?
> > >
> > > Thanks.
> > > -Abe
> >
> >
> 
>
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