[ka-Map-users] viewport width undefined

[Paul Spencer]

Scott,

any chance you are using minscale/maxscale in your mapfile?  Is it  
possible that the scale values you have defined here are outside of  
the min/max scale in your map file?  The code that determines the  
visibility of the layers uses a php/mapscript function to determine  
if each layer is visible at each scale you have defined.

Cheers

Paul

On 9-Mar-06, at 11:02 AM, Scott Melby wrote:

> Brent -
>
> Thanks for the help.  It did turn out to be the '\' that was  
> trailing the URL that was causing the JS error that I was seeing.   
> However, I am still having some trouble.  The init.php is returning  
> the following now (note corrected scales and server URL).
> /*init*/aszScales=new Array 
> (1750000,1000000,700000,350000,200000,100000,50000,35000,20000,10000,5 
> 000,3000);var map = new _map( 'pams', 'PAMS', 0, 3,  
> aszScales);map.setDefaultExtents 
> (-252600,-148033.591,274400,165545.107);map.setBackgroundColor('rgb 
> (255,255,255)');map.addLayer(new _layer( '__base__', true, 100,  
> 'gif',false, new Array(0,0,0,0,0,0,0,0,0,0,0,0)));map.resolution =  
> 72;this.addMap 
> ( map );this.tileWidth=300;this.tileHeight=300;this.server =  
> 'http://dev.keystoneresearchmap.org/kamap/';this.tileURL =  
> 'tile.php';this.selectMap('pams');
>
> I get no JS errors, but I also get no displayed map.  From a quick  
> look at init.php, it looks like the 'new Array 
> (0,0,0,0,0,0,0,0,0,0,0,0)' is saying that all of my layers should  
> be invisible at every scale.  But, I can't see anything in my map  
> file that should cause this.  All layers are set to "STATUS ON".
> Thanks again
> Scott
>
>
> Brent Pedersen wrote:
>
>> hi scott, the scales are the same, but the extents are different  
>> for the 2
>> init.php outputs. why is that?
>>
>> also the url for the broken is: 'http://dev.keystoneresearchmap.org 
>> \/'  with
>> an extra '\' after the org. that might be enough to break it.
>>
>> -b
>>
>>
>>
>> On 3/8/06, Scott Melby <melby at turnkey-technology.com> wrote:
>>
>>> Hello -
>>>
>>> I have recently installed ka-map using ms4w on my Win2k  
>>> professional box
>>> and got it to serve my maps etc. perfectly.  I really like it!   
>>> However,
>>> now I am having some trouble moving it to a Win 2003 server box.   
>>> The
>>> symptom I am seeing is that I get a JS error from kaMap.js "Error:
>>> Invalid Argument".  Debugging the JS shows that I am in  
>>> zoomToExtents()
>>> which was called from selectMap() which was called from the JS  
>>> returned
>>> from init.php.  The issue is at the following line of code
>>>
>>> this.theInsideLayer.style.left = -1*(vpLeft - this.xOrigin) + "px";
>>> and the problem is that vpLeft is NaN (not a number) which stems  
>>> from
>>> the fact that this.viewportWidth is also NaN.
>>>
>>> I have done the following in an attempt to debug this
>>> 1) Verified that calling mapserver on that server directly via a URL
>>> returns a valid map.
>>> 2) Verified that calling init.php in the browser returns "reasonable
>>> looking" code.
>>> 3) Verified that php can create files in the configured ka-cache
>>> directory by creating a php page that creates a file and invoking it
>>> from a browser.
>>>
>>> Here is some other potentially helpful information on this issue
>>> init.php from working server returns
>>> /*init*/aszScales=new
>>> Array 
>>> (2000000,1500000,1000000,750000,500000,100000,50000,25000,10000);var
>>> map = new _map( 'pams', 'PAMS', 0, 5,
>>> aszScales);map.setDefaultExtents(-80.815,39.59,-74.4,42.397
>>> );map.setBackgroundColor('rgb(255,255,255)');map.addLayer(new
>>> _layer( '__base__', true, 100, 'png',false, new
>>> Array(1,1,1,1,1,1,1,1,1)));map.resolution = 72;this.addMap( map
>>> );this.tileWidth=300;this.tileHeight=300;this.server =
>>> 'http://cheyenne.turnkey-technology.com:88/kamap/';this.tileURL =
>>> 'tile.php';this.selectMap('pams');
>>>
>>> init.php from broken server returns
>>> /*init*/aszScales=new
>>> Array 
>>> (2000000,1500000,1000000,750000,500000,100000,50000,25000,10000);var
>>> map = new _map( 'pams', 'PAMS', 0, 3,
>>> aszScales);map.setDefaultExtents 
>>> (-252600,-148033.591,274400,165545.107
>>> );map.setBackgroundColor('rgb(255,255,255)');map.addLayer(new
>>> _layer( '__base__', true, 100, 'gif',false, new
>>> Array(0,0,0,0,0,0,0,0,0)));map.resolution = 72;this.addMap( map
>>> );this.tileWidth=300;this.tileHeight=300;this.server =
>>> 'http://dev.keystoneresearchmap.org\/';this.tileURL =
>>> 'tile.php';this.selectMap('pams');
>>>
>>> We never see any tiles getting created in the tmp directory.
>>>
>>> Any help is greatly appreciated.  I am sure this is a rookie config
>>> error :(
>>>
>>> Thanks
>>> Scott
>>>
>>>
>>>
>>> _______________________________________________
>>> ka-Map-users mailing list
>>> ka-Map-users at lists.maptools.org
>>> http://lists.maptools.org/mailman/listinfo/ka-map-users
>>>
>>>
>>
>>
>
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+-----------------------------------------------------------------+
|Paul Spencer                           pspencer at dmsolutions.ca   |
+-----------------------------------------------------------------+
|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
+-----------------------------------------------------------------+