As you probably now have your raster on the QGIS canvas on top of other layers, you can just keep the Display type option Map canvas image as it is by default. The GUI you encounter at first look might seem a bit complicated at first look, but eventually it’s quite simple to build the 3D model with it.įirst check that you have your elevation model file selected as the DEM model. Now open from Web dialog the QGIS2threejs plugin. You can remove the OSM layer from your QGIS project and add the elevation model you downloaded if you don’t already have it there. This is the part where the map actually comes alive. This way you don’t actually have to write any coordinates anywhere and leave less room for error.Īfter you click Ok and run the translation, QGIS should add your map to canvas automatically and you should see the raster on top of the OpenStreetMap layer in the correct location. For my map I chose to use a some of the cities as these points, but you can choose any points that you can easily detect on both maps. In practice you now need to first click on your raster map in a specific point and then select From map canvas option in the dialog that opens and click on the same point in the OSM map on your QGIS canvas and then select Ok.
Please note that it might not work so well on some rasters which have a really local projection.īut now just add your map to the Georeferencer and start clicking! The map you will use, will be georeferenced to EPSG:3857 because it’s relatively simple with the OSM background map (although it’s not often the “optimal” projection). You can find the Georeferencer under Raster dialog. You will use this OSM background map to select the georeferencing points to your raster map. If your map is already georeferenced, you can of course skip this part.įrom the Web dialog in your QGIS open OpenLayers plugin and from there select OpenStreetMap. I also think that just the idea of combining really old data with really modern data is just turns into something really intriguing.įor this tutorial I chose to use a map of the Korean peninsula from the CIA collection with the global 100 meter resolution DEM (first link) with also sea depth included. Why am I suggesting you to do it the hard way and not to select some raster file that someone has already georeferenced? I believe that you can get more interesting results this way and bring new raster maps to a format where you can actually use them also for other purposes in GIS software. This means that when you put it into QGIS, the system doesn’t know the coordinates of the map and thus you can’t properly overlay other data (in our case the DEM) on top of it.
What is important when you select your data, is that you make sure that your DEM resolution somewhat matches the raster map you have selected. Especially for the more detailed DEM’s you should look into local land survey websites. That’s how I also found the elevation models for this tutorial.įor the elevation model, there are several sources out there.
#MAGIC MAPS GRID REFERENCE FREE#
As a general guideline, when I search for new data on a specific topic, my starting point quite often is the great Free GIS Data website (awesome name, btw). You might already have a raster map and a DEM from an area of your choice (skip to the last part if you do).
OpenLayers plugin (you can also use something else for this).Georeferencer (it actually comes with QGIS but you need to enable it in the dialog).
#MAGIC MAPS GRID REFERENCE INSTALL#
You can easily install the plugins through the Plugins dialog. First get your QGIS ready by installing the necessary plugins. You basically only need QGIS (with a few plugins), an old raster map and a DEM raster.
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