[webmap-discuss] Re: Map Width/Height defined as a percentage in OWS Context

Kralidis,Tom [Burlington] Tom.Kralidis at ec.gc.ca
Wed Dec 6 17:06:36 EST 2006


What if the context is not being used by an HTML client? 

> -----Original Message-----
> From: Cameron Shorter [mailto:cameron.shorter at gmail.com] 
> Sent: 06 December, 2006 5:05 PM
> To: Kralidis,Tom [Burlington]
> Cc: ows-4-geodss at opengeospatial.org; webmap-discuss at mail.osgeo.org
> Subject: [webmap-discuss] Re: Map Width/Height defined as a 
> percentage in OWS Context
> 
> Width would be set to 100% of the size of the <DIV> (in line 
> with HTML convensions). The will often be 100% of the browser 
> window width.
> 
> Kralidis,Tom [Burlington] wrote:
> >  
> > 
> > 
> >>-----Original Message-----
> >>From: Cameron Shorter [mailto:cameron.shorter at gmail.com]
> >>Sent: 06 December, 2006 4:32 PM
> >>To: 'ows-4-geodss at opengeospatial.org';
> >>webmap-discuss at mail.osgeo.org; Kralidis,Tom [Burlington]
> >>Subject: Map Width/Height defined as a percentage in OWS Context
> >>
> >>Tom,
> >>Am I right in understanding that WMC and OWS Context always specify 
> >>Map Size in fixed coordinates. Eg:
> >>
> >>     <Window width="600" height="300"/>
> >>
> > 
> > Correct.  This was originally from the WMC days.
> > 
> > 
> >>With modern webmapping clients these days, maps are set to 
> fit within 
> >>the HTML <DIV> element that encloses them.
> >>So what would work better for the context is to set window size as:
> >>
> >>     <Window width="100%" height="100%"/>
> >>
> >>The Area of Interest would then need to be calculated to fit the 
> >>specified BoundingBox. (We need to make the assumption that users 
> >>don't want to stretch images).
> >>
> > 
> > 
> > 100% of what?  This is assuming that a client has a width/height in 
> > place when loading a context.  What if my client purely 
> derived from 
> > what a WMC/OWSContext provided in Window/@width and Window/@height ?
> > 
> > Similarly, we encountered this when working on WMC 1.0.0 (i.e. 
> > honouring bbox vs. window size).  It was decided that it 
> would be up 
> > to the client on whether to recalculate the bbox or adjust 
> the window 
> > width/height (i.e. when aspect ratio is off).
> > 
> > I would see this same behavious (i.e. letting the client decide) as 
> > can be applied to modern webmapping clients also.
> > 
> > Does this make sense?
> > 
> > 
> >>Could you please add this to your OWS Context issues to 
> >>address/discuss.
> >>
> > 
> > 
> > For sure.  Thanks.
> > 
> > 
> >>--
> >>Cameron Shorter
> >>http://cameron.shorter.net
> >>
> >>
> > 
> > 
> 
> 
> --
> Cameron Shorter
> http://cameron.shorter.net
> 
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