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GR refers to the Grid Reference, it's like a lat long intersection. Eastings are grid lines that akin to longitude(lines that increase towards the East) and Northings are like latitude (lines that increase towards the North). The intersection of the two is known as the GR or grid reference.


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The plugin is installed by default, but for strange reasons it might get deactivated in the plugin manager. Checking the square left to the plugin name, or double-click on the plugin name will enable the plugin permanently.


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I completely uninstalled all the QGIS I could find on my computer and then reinstalled the 64bit version of QGIS 2.8.9 stable release. Once I had done that the plugin worked properly. I think this problem either relates to have remains of more than one verison of QGIS on the computer, or it was a 32bit issue. The plugin works perfectly and is brilliant.


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You could try converting the raster to a polyline (http://pro.arcgis.com/en/pro-app/tool-reference/conversion/raster-to-polyline.htm) and, subsequently, converting the lines to polygons (http://pro.arcgis.com/en/pro-app/tool-reference/data-management/feature-to-polygon.htm). The feature to polygon tool requires an advanced license; if you don't have an ...


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The website lets you choose between CH1903+LV95, WGS84, UTM and MGRS coordinates. Since the map is originally in CH1903+, I suggest to use that CRS and the meter coordinates of it. You can choose to imprint a coordinate grid, which is also in CH1903. You have to set EPSG:2056 in the georeferencer settings dialogue. In the part of Switzerland you ...


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As commented by @Mapperz: .geo not supported for arcgis, world files are .tfw for tif jgw for jpeg etc.


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If you have read the coordinates from the imprinted degree grid, you should have taken EPSG:4178 Pulkovo 1942(83) as target CRS. This is the geographic CRS behind EPSG:2398. You can try Set Layer CRS to change it, or do the georeferencing again.


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I always use the Georeferencer GDAL plugin and Quick Map Services as this allows me to use the Google maps (or OSM or whatever) base map inside QGIS and clicking on a point in the image automatically brings up a window to click on the map and fills it all in for me. I can even georeference in a local projection rather than WGS84 or EPSG:3857.


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It sounds like you are switching between a browser and QGIS. It would be faster to stay inside of QGIS and use a background aerial layer, zoom to the general location of the image and then fit the image to your current view extent. Then you can quickly add control points between the aerial background and your map. Programatically georeferencing maps I don't ...


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Use BricsCAD, which is in fact an affordable copy of AutoCAD. This software is able to read the geocoded information of a geotiff.


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In ArcGIS you should load the CAD data first and use the Georeferencing toolbar to establish world file coordinates before converting to a shapefile as explained in the Georeferencing CAD datasets help. There are several related help links in this section that explain how you can apply a transformation, but that generally means that the local coordinates ...


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I just tried to georeference the image with QGIS, used just 3 points, a Helmert transformation and OpenStreetMap map as reference image. I got to ca. 30km georeference error, and my tie points are almost on a straight line. Using 7 points more equally distributed I get the error down to approx. 25km (more on the east coast, see image). I used these tie ...



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