[Qgis-user] Re: Swipe functionality

jonathanmoules at warwickshire.gov.uk jonathanmoules at warwickshire.gov.uk
Wed Nov 2 01:16:01 PDT 2011


Yep, ArcGIS does the same thing under the same name too, so it's not an 
uncommon feature.
Unfortunately I do need it to be a QGIS extension because we have a 
pre-deployed QGIS project that is interested in it. However, it's an 
"icing on the cake" feature, so not mandatory.
Thanks though,
Jonathan 


From:   Jukka Rahkonen <jukka.rahkonen at mmmtike.fi>
To:     qgis-user at lists.osgeo.org
Date:   02/11/2011 07:07
Subject:        [Qgis-user] Re: Swipe functionality
Sent by:        qgis-user-bounces at lists.osgeo.org



 <jonathanmoules at ...> writes:

> 
> Ah, these are multi-band images I'm using. The
> problem with QGIS relying on plugins is that you're also relying on the
> documentation for those plugins, and this one doesn't seem to have much
> for instance.Swipe basically allows you to "swipe"
> a raster layer off so you can compare it with what's below. Best 
described
> with a video - http://www.youtube.com/watch?v=IBl0eKPE37I- see from ~55
seconds.Cheers,Jonathan From:      
>  Giovanni Manghi <giovanni.manghi at gmail.com>To:
     
Hi,

Seems to be the same functionality and with the same name as in ERDAS 
Imagine.
OSSIM can do it, see page 9 in this document
http://download.osgeo.org/ossim/docs/pdfs/ImageLinker_Tutorial.pdf
I am not sure how good OSSIM is with vector layers. OSSIM itself is 
getting
better with vectors but Image Linker is quite old and not developed any 
more.
However, it will not hurt to have a look at OSSIM if you want to do some 
serious
raster processing.

-Jukka Rahkonen-

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