[Qgis-user] Vector Affine trouble

[Mike Shand]

Hi Rutger,

It would be useful to know the source for the digitised contours and the 
procedure you used to create the shapefile.

You may have three options:
1. Go back to Adobe Illustrator and digitise some well defined known 
reference points such as grid intersections or road junctions, with this 
it should be possible in QGIS to move, scale and rotate the vector 
contours to fit OpenStreetMap or OS Opendata online imagery of Mull and 
Iona.
2. Request someone with the QGIS plug-ins qgisAffine or VectorBender 
working to do the transformation for you.
3. Request someone with ArcGIS Spatial Adjustment to do the 
transformation for you.

Regards,
Mike

On 13/01/2019 21:11, Rutger Emmelkamp wrote:
> Hello everybody,
>
> I’ve posted this question before and had some good suggestions (which 
> I tried as good as I can) but I’m not there yet.
> I have this intricate contour lines map (.shp file) and after 
> importing, it sits in Africa. Now I want to drag it to Scotland and 
> make it fit. It’s not just the position, it also requires rotating and 
> stretching to make it fit.
> I can’t get the qgisAffine or VectorBender plugins to work on qgis 
> 3.4.3. and I don’t have any experience with GRASS7 commands which was 
> one suggestion. (I wil look into that)
>
> Meanwhile, are there any other suggestions?
>
> Thanks again.
>
> Rutger
>
>
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>
>
>
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>
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>
>> Op 13 jan. 2019, om 15:29 heeft Mike Shand <Mike.Shand at glasgow.ac.uk 
>> <mailto:Mike.Shand at glasgow.ac.uk>> het volgende geschreven:
>>
>> Hi Rutger,
>>
>> If you have successfully converted your Adobe Illustrator file into 
>> an ESRI shapefile (using Avenza MaPublisher or DXf export ?) please 
>> first check the quality of the linework in QGIS. Any Illustrator 
>> vector bezier curves will probably have been simplified to straight 
>> lines.  To avoid the lines being too generalised use the Add Anchor 
>> Points option in Illustrator several times if necessary to ensure the 
>> curves are replicated by short straight line sections.
>>
>> If you are using MaPublisher 
>> <http://download.avenza.com/Downloads/Docs/MAPublisher/MP90_TutorialGuide.pdf> 
>> there is the option to add the projection/datum.
>>
>> Another alternative using Dxf format is:
>> http://christopherwesson.azurewebsites.net/2016/04/08/importing-vectors-from-illustrator-into-a-gis-with-georeferencing/#sthash.O3XCCqoR.dpbs
>>
>> Regards,
>> Mike
>>
>> On 12/01/2019 22:37, Rutger Emmelkamp wrote:
>>> Hello everybody,
>>>
>>> Hope someone can help me out this Saturday night (or Sunday or Monday) but no hurry!
>>>
>>> How to georeference an Illustrator vector image (contour line map) from a specific area?
>>> I have qgis 3.4.3 installed and qgisAffine and Vector Blender plugins don’t work for this version.
>>>
>>> I managed to turn the file into a .shp file and I see it somewhere off the coast of Ghana (coordinates 0,0) but how do I drag it into place?
>>> I think I’m looking for a Vector Affine Transformation plugin or menu but can’t find it.
>>>
>>> Hope someone can help me in the right direction.
>>>
>>> Thanks and have a nice weekend.
>>>
>>> Rutger
>>> _______________________________________________
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>>
>>
>

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