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<p>Hi Andrea,<br>
</p>
<p>False origins happens often with local topographical surveys,
with also a false altitude origin. Architectural plans are
sometimes even more tricky: rotated, or with a centimetric or
millimetric scale instead of a metric scale. A way is to transform
the data with a CAD software when available. Even then, problems
can arise e.g. when rescaling some objects.</p>
<p>I suppose a workaround in your case would be to use the "move"
command and to snap to a point drawn at the correct coordinates.
This could be cumbersome when there are many layers to edit, which
is often the case, unless you import the dxf as a unique layer....</p>
<p>If your data consist merely of point data (no polylines), it
should be possible, after conversion of the dxf in a shapefile, to
create the X, Y attributes using the field calculator, and to
recalculate these attributes with the same tool. <br>
</p>
<p>In the case of polylines, there is the possibility to extract
vertices. But I do not know if there is a possibility to recreate
the polylines after the recalculation of the X, Y attributes.<br>
</p>
<p>Dxf conversion is a complicated subject. The evolution of the
capabilities of QGIS in that field is amazing. Many thanks to the
developers for that.<br>
</p>
<p>Hope this helps,</p>
<p>Paul<br>
</p>
<div class="moz-cite-prefix">Le 13/11/2019 à 14:04, Andrea Peri a
écrit :<br>
</div>
<blockquote type="cite"
cite="mid:CABqTJk86nwni7Th_TjpKhiFDA8=gX2Ogz+jj05t-2VowrR+HYA@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="auto">Hi,
<div dir="auto">We have a dxf containings geograph data in
false.origin .</div>
<div dir="auto">I'm searching a solution to put a kind of origin
(x,y) to sum to every point of the data. Is possible to set an
<a href="http://origin.to" moz-do-not-send="true">origin.to</a>
a dataset in qgis ?</div>
<div dir="auto"><br>
</div>
<div dir="auto">Thx.</div>
<div dir="auto">Andrea.</div>
<div dir="auto"><br>
</div>
</div>
<br>
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