<meta http-equiv="content-type" content="text/html; charset=utf-8"><div></div><div>Hi,</div><div>As an archaeologist, I do that a lot.  You will need to scan the map to create a .tiff. The you use the qgis georeferencing plugin to place the map in the correct spot.  </div><div><br></div><div><a href="http://www.qgistutorials.com/en/docs/georeferencing_basics.html" target="_top" rel="nofollow" link="external">http://www.qgistutorials.com/en/docs/georeferencing_basics.html</a></div><div>This should help.  Also look at the qgis documentation.  <a href="http://docs.qgis.org/2.14/en/docs/user_manual/" target="_top" rel="nofollow" link="external">http://docs.qgis.org/2.14/en/docs/user_manual/</a></div><div><br></div><div>If you overlap polygons or two rasters, play with the layer rendering and transparency found in the layer properties. </div><div><br></div><div>Cheers</div><div>Nicolas</div><div><br>Le 10 nov. 2016 à 06:22, Pat Hin [via <a href="http://OSGeo.org" target="_top" rel="nofollow" link="external">OSGeo.org</a>] <<a href="/user/SendEmail.jtp?type=node&node=5295146&i=0" target="_top" rel="nofollow" link="external">[hidden email]</a>> a écrit :<br><br></div><blockquote style='border-left:2px solid #CCCCCC;padding:0 1em' type="cite"><div>

        Hello guys

<br><br>i am a private researcher who is analyzing where some former old 

<br>buildings has been

most surely been located.

<br>For that of course i have sometimes just a very old map (sometimes a 

picture or a scan).

How would be the best way to "overlap" this with a modern map like OSM.

<br>I am sure i have to create two layers and the layer for the modern map 

<br>is easily to do

with the plugins.

But how to process the "old" map the best way: would do you recommend to do?

<br><br>many thanks

<br><br>pat

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