[OpenLayers-Users] Bug in OpenLayers.Bounds ? [was: geo referenced image layer]

miles john.staff2222 at gmail.com
Sat Nov 17 05:06:42 EST 2007


Okay, I have traced the problem and it seems to be a bug. Apparently  
OpenLayers.Bounds wants the left and bottom to be negative and the right 
and top to be positive.   If both longs are negative or both lats are 
positive it does not work. 

works:
new OpenLayers.Bounds(-111.7, -40.3, 111.6, 40.4),

does not work:
new OpenLayers.Bounds(-111.7, 40.3, 111.6, 40.4),
new OpenLayers.Bounds(-111.7, 40.3, -111.6, 40.4),



Mike Adair wrote:
> Try this?
>
> (-111.7, 40.3, -111.6, 40.4)
>
> swapping your min/max x values.
>
> Mike
>
>
>
> miles wrote:
>> Tim Schaub wrote:
>>  
>>> Hey-
>>>
>>> miles wrote:
>>>      
>>>> How can a simple jpeg image map be added as a layer(assuming the 
>>>> lat long corner pts are known) so that clicking on the layer can 
>>>> return lat long coordinates  ?           
>>> See http://openlayers.org/dev/examples/image-layer.html
>>>
>>> You can point to an arbitrary image and "georeference" it when 
>>> creating the layer.
>>>       
>> That's where I had trouble.  The example shows:
>>
>> new OpenLayers.Bounds(-180, -88.759, 180, 88.759),
>>
>> but when I substituted my own coordinates, (ie -111.6, 40.3, -111.7, 
>> 40.4) the image disappeared.  Does the georeferencing  need to be 
>> done some other way  ?  Then I figured to use a mouse click event
>>
>> _______________________________________________
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>>
>>   
>



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