Step 1 : Install QGIS
- Go to http://www.qgis.org
- Follow the information
- If on mac, read carefully : you must install GDAL_Framework and matplotlib before being able to install QGIS
Step 2 : Load some background layers from the ITB
- The most interesting shapes are probably
SUP_CAN(canals). But you can also have a look at the others.
- Simply drag and drop the
.shpfile onto QGIS
Step 3 : Georeference the Ughi map
- Open the georeferencer using the menu
- In the new window, choose “open raster” and select “ughi.jpg” in the “iconographic_cartographic_sources” folder.
- Create some points using the “add point” button , each time choose a recognizable spot on the Ughi map, and choose a corresponding point “from the map canvas”
- Once you have around 10 (or more) points, click on the play button
- On the window that pops up, choose an “output” destination somewhere on your drive (best is to put it alongside your QGIS project)
- Click OK and wait a bit. Once finished, check if the georeferencing is acceptable (don’t expect it to be precise though). If not, add some points or check if you didn’t enter wrong points.
Step 4 : Create a new data layer
- In the
- Set the type to polygon
- Set the name of the layer to “buildings”
- Add some attributes like name, type, const_year, and possibly some more
- Click OK, and save it somewhere (best is to put it alongside your QGIS project)
Step 5 : Add some data
- Select the layer your just created
- Toggle on the “edit mode”
- Create some features using the “add features” button , and assign data.
- Save the data every now and then by toggling off the “edit mode”.
Step 6 : Create an atlas
- Use the menu
project>new print composer
- In this new window, add a new map from the map canvas
- Select this item, and in the properties window, check “controlled by atlas”
- In the
atlas generationtab on the right, check “generate an atlas”
- Choose your buildings layer as the coverage layer
- Check “export single file if possible”
- Add text using the button. Customize the text by selecting the text box and entering text in the properties tab.
- Use some of the layer’s attributes as text, using the “insert an expression” button, and selecting some attributes from the “Fields and Values” category
- To have a preview of the atlas, click the and browse through the pages using the previous and next buttons
- If everythink looks OK, choose
export atlas as PDFfrom the
Step 7 : Export to 3D map
- Install the
qgis2threejsplugin, using the plugin manager (
plugins>Manage and install plugins)
- Zoom in the area you’re interested in on the map
- Run the plugin which is located in the
- X-in your “buildings” layer
- Setup the settings so that it displays well (for instance : activate labels and choose the name field as label, if you have a height field, you can use it as the extrusion height as well)
- You can always change the settings an click
QGIS provides good documentation for begginers.
You can get additionnal help from :
Tip : set your QGIS installation to English, it makes searching for help easier if you use the english terms
Just in case, this is Olivier. Best, Yannick.