[Qgis-user] Re: Overview (inset map ) in map composer

[Micha Silver]

On 10/29/2010 12:50 AM, John C. Tull wrote:
> I don't think that "they" (they being me, by the way) forgot that was a problem. I probably just did a poor job of articulating the issue and solution. I recognize that the overview map is not always what you want for an overview map in the composer.
>
> What might be a better solution would be to have an overview map option in the composer that uses those layers that you have selected to be in the overview map on the canvas. You could then change the scale of this overview map in the composer, recenter, etc. Something like a "Place overview map" tool or similar.
>
>    

My needs are slightly different. Firstly, in the overview window I often 
do not put the same layers as the main window. Sometimes, just a scanned 
topo map in sufficient in the overview. Secondly, the important feature 
is an "extent" rectangle that shows in the overview window the actual 
extents of the main map window.

Thanks,
Micha
> Cheers,
> John
>
> On Oct 27, 2010, at 3:47 PM, Alister Hood wrote:
>
>    
>> Hi guys,
>> There is a feature request for adding the map from the overview pane to
>> the composer:
>> https://trac.osgeo.org/qgis/ticket/2348
>> That person is after essentially the same result as you Marco, but they
>> seem to have forgotten that the extent of the map view is almost always
>> at least slightly different from the extent of the detail map in the
>> print composer.  So the map extent rectangle shown in the overview would
>> be wrong.
>>
>> It might be more flexible anyway to have a plugin add a rectangle to a
>> normal map canvas on the print composer, showing the extents of another
>> map canvas.  I think this would be a popular feature - does anyone know
>> how feasible it would be?
>>
>> I imagine the other problem mentioned in that ticket (the difficulty
>> around preserving/changing the layers shown on a map canvas in the
>> composer) is something that should be addressed separately.
>>
>> Regards,
>> Alister
>>
>>      
>>> Date: Wed, 27 Oct 2010 15:42:10 +0000 (UTC)
>>> From: Marco Tuckner<marcotuckner at public-files.de>
>>> Subject: [Qgis-user] Re: Overview (inset map ) in map composer
>>> To: qgis-user at lists.osgeo.org
>>> Message-ID:<loom.20101027T174030-962 at post.gmane.org>
>>> Content-Type: text/plain; charset=us-ascii
>>>
>>>        
>>>> You can simply add another map to the canvas, and then set the
>>>>          
>>> extents and
>>> scale to only cover your area of interest.
>>> Yes.
>>> But how do I make them dynamically zoom and also display an extend
>>> rectangle on
>>> the overview map showing th extend of the detailed map?
>>>
>>> Thanks for following up.
>>>
>>> Regards,
>>> Marco
>>>        
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>> Qgis-user at lists.osgeo.org
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>>      
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-- 
Micha Silver
Arava Development Co. +972-52-3665918
http://www.surfaces.co.il