[Chameleon] Rounding scale value

Gambin Dejan Dejan.Gambin at pula.hr
Tue Apr 4 03:26:12 EDT 2006


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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