[OpenLayers-Users] Problem wth ScaleBar
Tim Schaub
tschaub at openplans.org
Mon Jan 28 16:03:59 EST 2008
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!
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