[OpenLayers-Users] Sizing background images and StyleMaps

Nicholas Bergson-Shilcock nicholasbs at openplans.org
Tue Mar 3 18:58:45 EST 2009


Excerpts from Ivan Grcic's message of Thu Feb 26 16:36:23 -0500 2009:
> ooops sorry, i didnt see you said background image size. i dont know
> if there is such an option in api now...but if u find something you
> can put it in the docs ;)
> 

I spoke with Tim Schwab about this and it turns out the current release does
not support setting the width/height of background graphics separately. At
present, the background graphic's size is set to be the same as the foreground
graphic's. 

There's a patch to allow setting the background width and height on their own
here: http://trac.openlayers.org/ticket/1968

-Nick

> cheers
> 
> On 2/26/09, Ivan Grcic <ivan.grcic at geofoto.hr> wrote:
> > #
> >
> > externalGraphic
> >
> >     An external image to be used to represent a point.
> >
> > #
> >
> > graphicWidth, graphicHeight
> >
> >     These properties define the height and width of an
> > externalGraphic. This is an alternative to the pointRadius symbolizer
> > property to be used when your graphic has different sizes in the X and
> > Y direction.
> >
> > #
> >
> > graphicOpacity
> >
> >     Opacity of an external graphic.
> >
> > #
> >
> > graphicXOffset, graphicYOffset
> >
> >     Where the ‘center’ of an externalGraphic should be.
> >
> > #
> >
> > graphicName
> >
> >     Name of a type of symbol to be used for a point mark.
> >
> > cheers
> >
> > On 2/26/09, Nicholas Bergson-Shilcock <nicholasbs at openplans.org> wrote:
> >> Excerpts from Christopher Schmidt's message of Thu Feb 26 12:26:38 -0500
> >> 2009:
> >>> On Thu, Feb 26, 2009 at 12:16:05PM -0500, Nicholas Bergson-Shilcock
> >>> wrote:
> >>> > Hello,
> >>> >
> >>> > I'm pretty new to OpenLayers and I have a couple of questions.
> >>> >
> >>> > 1) How can I set the size of a background graphic? I'm doing something
> >>> > similar
> >>> > to the marker shadow example here[1]. I guessed and used
> >>> > graphicWidth/graphicHeight to set the size of my marker image (which
> >>> > works),
> >>> > but neither backgroundGraphicWidth nor backgroundWidth seem to have
> >>> > any
> >>> > effect
> >>> > on my shadow image. What's the correct way to do this?
> >>> >
> >>> > 2) Is there a place to look up all of the options for an
> >>> > OpenLayers.StyleMap
> >>> > object?
> >>>
> >>> http://docs.openlayers.org/library/feature_styling#style-properties
> >>
> >> Ah, thanks for pointing me towards these. This is just the type of doc  I
> >> was
> >> looking for, however, I don't see any options relating to background
> >> images.
> >> Do
> >> you know if it's possible to explicitly set the size of a background
> >> image?
> >>
> >> Thanks for the help and a great product,
> >>   -Nick
> >>
> >>>
> >>> Regards,
> >> _______________________________________________
> >> Users mailing list
> >> Users at openlayers.org
> >> http://openlayers.org/mailman/listinfo/users
> >>
> >
> >
> > --
> > Ivan Grcic
> >
> 



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