[OpenLayers-Users] Problem wth ScaleBar

[Tim Schaub]

Hey-

Tim Schaub wrote:
> 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.

Sorry, and browser info.

> 
> 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!
> 
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