[Qgis-developer] [Plugin presentation] LayerBender

Denis Rouzaud denis.rouzaud at gmail.com
Mon May 26 22:51:50 PDT 2014

Hi Olivier,

Once more, you did a really great job!

I just wonder about the technique when you have enough points (>7).
In case of mathcing old to new plans, isn't it better to do an affine 
transformation (scale, translation and rotation) using least-squares 
rather than doing a triangulation?
You might have better visual results with the triangulation, but the 
affine would lead to more coherent results.



On 26.05.2014 21:18, Olivier Dalang wrote:
> Dear lists,
> I'm happy to present my new plugin called "LayerBender".
> It's purpose is to allow to align/distort vector layers to match a 
> source, very much like georefencer does for raster. It seems ArcGIS 
> and OpenJump call this feature "Rubber sheeting".
> Demonstration video : https://vimeo.com/96142479
> I needed this in a project I'm working on to align some already 
> digitized historical maps.
> Please note that the plugin is still experimental and not much tested 
> yet (and only under windows)... So please be understanding in case of 
> problems !
> All feedback is welcome, either here or on 
> https://github.com/olivierdalang/VectorBender
> Hope you like it !
> Best,
> Olivier
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> Qgis-developer mailing list
> Qgis-developer at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-developer

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