[Chameleon] Rounding scale value

[Eijnden, B. van den (Bart)]

We could use a widget attribute named round for the Scale widget with
possible values true/false, default false.

But maybe some more control would be desirable, so a precision attribute
with a default value of -1 which means just the way it works now, and for
your situation a value of 0.

Last time I checked I had a bit of trouble finding good javascript functions
which could change numeric values to a certain precision, are you familiar
with any?

Best regards,
Bart

-----Oorspronkelijk bericht-----
Van: Gambin Dejan [mailto:Dejan.Gambin at pula.hr]
Verzonden: dinsdag 4 april 2006 9:53
Aan: Eijnden, B. van den (Bart)
CC: chameleon at lists.maptools.org
Onderwerp: RE: [Chameleon] Rounding scale value


I have tried nad it seems it work for me...but I just modified this
piece of code because I am just interested in showing the scale value
without any decimal points. I suppose you are interested in adding a new
parameter in a widget...

regards, dejan

> -----Original Message-----
> From: Eijnden, B. van den (Bart) 
> [mailto:b.vdeijnden at agi.rws.minvenw.nl] 
> Sent: Tuesday, April 04, 2006 9:26 AM
> To: Gambin Dejan
> Cc: chameleon at lists.maptools.org
> Subject: RE: [Chameleon] Rounding scale value
> 
> 
> Hi Dejan,
> 
> I think this might work, give it a try and please report back. Thanks.
> 
> Best regards,
> Bart
> 
> -----Oorspronkelijk bericht-----
> Van: Gambin Dejan [mailto:Dejan.Gambin at pula.hr]
> Verzonden: dinsdag 4 april 2006 9:26
> Aan: Eijnden, B. van den (Bart)
> CC: chameleon at lists.maptools.org
> Onderwerp: RE: [Chameleon] Rounding scale value
> 
> 
> Hi Bart,
> 
> Can you tell me where the form variable (SCALE) is used in 
> calculations in JSAPI mode? If I can see it is used only in:
> 
> "goCWCJSAPI.oMap.oApplication.ZoomToScale({$this->mszHTMLForm}
> .SCALE.val
> ue);"
> 
> If this is true, may I just 
> put:"goCWCJSAPI.oMap.oApplication.ZoomToScale(goCWCJSAPI.oMap.scale);"
> instead of above and use something like:
> 
> "{$this->mszHTMLForm}.SCALE.value = 
> Math.round(goCWCJSAPI.oMap.scale);"
> for displaying the rounded scale?
> 
> regards, dejan
> 
> > -----Original Message-----
> > From: Eijnden, B. van den (Bart)
> > [mailto:b.vdeijnden at agi.rws.minvenw.nl] 
> > Sent: Tuesday, March 28, 2006 11:43 AM
> > To: Gambin Dejan; chameleon at lists.maptools.org
> > Subject: RE: [Chameleon] Rounding scale value
> > 
> > 
> > Hi Dejan,
> > 
> > I looked into the same problem a few months ago, but the
> > problem with rounding seems that all the calculations with 
> > the scale will also lose precision, so you need to decouple 
> > display from the raw values somehow.
> > 
> > If you find a solution, please update the following bug:
> > 
> > http://bugzilla.maptools.org/show_bug.cgi?id=1031
> > 
> > Best regards,
> > Bart
> > 
> > -----Oorspronkelijk bericht-----
> > Van: chameleon-bounces at lists.maptools.org
> > [mailto:chameleon-bounces at lists.maptools.org]Namens Gambin Dejan
> > Verzonden: dinsdag 28 maart 2006 10:36
> > Aan: chameleon at lists.maptools.org
> > Onderwerp: [Chameleon] Rounding scale value
> > 
> > 
> > Hi,
> > 
> > I am using Scale widget to display the scale. It is ok
> > initially but sometimes I get non-rounded value shown in the 
> > inputbox (like xxx.yyy) after zooming. I am using JSAPI. Do I 
> > have to round it somewhere in 
> > "{$this->mszHTMLForm}.SCALE.value = goCWCJSAPI.oMap.scale;"? 
> > I suppose I have to convert it to number first and then use 
> > riund function (or work with scale value as string)...
> > 
> > thanks
> > 
> > dejan
> > 
> > _______________________________________________
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> > 
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