[OpenLayers-Users] Problem wth ScaleBar

[Tim Schaub]

Hey-

Can you send me a bit more context?  If you can't provide a link to a 
live site, but can send a page (or pages), send directly to me.

Thanks,
Tim

David R Robison wrote:
> It looks like I have the right code. I think the problem is with the 
> styleValue routine. I have had to modify the following code in the draw 
> function:
> 
>         var vertDisp = 0;
>         for(var classIndex = 0; classIndex < classNames.length; 
> ++classIndex) {
>             var cls = classNames[classIndex];
>             vertDisp = Math.max(
>                 vertDisp,
>                 this.styleValue(cls, 'top') + this.styleValue(cls, 'height')
>             );
>         }
>         if (vertDisp == 0) vertDisp = 30;
> 
> The vertDisp value was coming out to be zero. By adding the last line 
> and setting it to 30 it helped, but the bar still looks a bit off. I 
> load a number of style sheets and I think that there is an issue with 
> one that is causing the problem. I suspect the following code in styleValue:
> 
>                         if(typeof(sheet.cssRules) == 'undefined') {
>                             if(typeof(sheet.rules) == 'undefined') {
>                                 // can't get rules, assume zero
>                                 break;
>                             } else {
>                                 allRules = sheet.rules;
>                             }
>                         } else {
>                             allRules = sheet.cssRules;
>                         }
> 
> I am wondering if the "break;" should be a "continue;"? Any thoughts? David
> 
> Tim Schaub wrote:
>> Hey-
>>
>> David R Robison wrote:
>>   
>>> I was using the one in the tschaub sandbox. David
>>>
>>>     
>>
>> If you take a look at the patch for the scale bar, you'll see there are 
>> some changes required to the default stylesheet.
>>
>> http://trac.openlayers.org/attachment/ticket/24/scalebar.patch
>>
>> In addition, you'll want to add your stylesheet with a link tag instead 
>> of relying on the default dynamically added stylesheet.
>>
>> <link rel="stylesheet" href="../theme/default/style.css" type="text/css" />
>>
>> Thanks for trying it out.  Write back if you still have any trouble with it.
>>
>> Tim
>>
>>
>>   
>>> Christopher Schmidt wrote:
>>>     
>>>> On Mon, Jan 21, 2008 at 06:43:27PM -0500, David R Robison wrote:
>>>>   
>>>>       
>>>>>  I am trying to get the OpenLayers.Control.ScaleBar working. I've added 
>>>>> it to my map according to the example html. However, when my map draws, 
>>>>> I get the units (in my case 'miles') but it displays at the bottom of 
>>>>> the map and I get no scale bar. Its as if the scale bar is below the map 
>>>>> and hidden. Any thoughts on how to get this to work correctly? Thanks, David
>>>>>     
>>>>>         
>>>> Are you adding ScaleBar (which isn't in trunk) or Scale()? OpenLayers
>>>> does not currently have a ScaleBar control.   
>>>>
>>>> Regards,
>>>>   
>>>>       
>>> -- 
>>>
>>> David R Robison
>>> Open Roads Consulting, Inc.
>>> 708 S. Battlefield Blvd., Chesapeake, VA 23322
>>> phone: (757) 546-3401
>>> e-mail: drrobison at openroadsconsulting.com
>>> web: http://openroadsconsulting.com
>>> blog: http://therobe.blogspot.com
>>> book: http://www.xulonpress.com/book_detail.php?id=2579
>>>
>>>  
>>>
>>>
>>>
>>>
>>> ------------------------------------------------------------------------
>>>
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>>
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> 
> -- 
> 
> David R Robison
> Open Roads Consulting, Inc.
> 708 S. Battlefield Blvd., Chesapeake, VA 23322
> phone: (757) 546-3401
> e-mail: drrobison at openroadsconsulting.com
> web: http://openroadsconsulting.com
> blog: http://therobe.blogspot.com
> book: http://www.xulonpress.com/book_detail.php?id=2579
> 
>  
> 
> !DSPAM:4033,479e3dc020313362379201!