A beginners guide to the OneGeology portal
Get started by opening the OneGeology portal and following the steps below.
Step 1. Add a geology map for a country to the world background map
- Click the
button
to display a list of available countries - Click the + sign next to a country’s name to display a list of map layers available for that country
- Tick the checkbox for the map you want to display
- Click close to return to the world background map displaying your selected geology map.
Step 2. Moving around the world background map
There are 4 key tools to help you move around the world background map:
Zoom
in – click on this image and then click on the world background map to zoom in centred on the
clicked location. Click and drag a rectangle to zoom to a specific area
Zoom
out – click on this image and then click on the world background map to zoom out centred on the
clicked location. Click and drag a rectangle to zoom out from a specific area
Move
around the map – click this image and then click and drag on the map to move to a different area
(north, west, etc)
View
the whole world background map again – click this image to start again with a view of the full
world background map
Step 3. Viewing more than one map layer
In step 1 we selected a geology map for a country and displayed it on the world background map. This step can be repeated to add a number of geology maps for different countries. Some countries overlap the same geographic area making it difficult to view them together e.g. United Kingdom and Europe. You can change the transparency of map layers and the order in which they are drawn on top of each other when comparing overlapping information.
- Click the
button
to display a list of the added geology layers - The layer at the top of the list is the one that is drawn on top of all the other layers
and so is the one that is visible where they overlap. Click the
buttons
associated with a layer to move that layer up or down the list. - Drag the slider bar (
)
associated with a layer to change its opacity so that it is possible to see through a layer
to underlying layers where they overlap.
Step 4. Viewing data in Google Earth
Data from the OneGeology Portal can be viewed in Google Earth.
- Click the
button
to create a KML file that can be read by Google Earth - Enter a filename and click KML (google earth) to create a KML file containing the geology maps you added to the OneGeology Portal
- Once the KML file has been created you can save it or choose to immediately open the data in Google Earth
Want to know more?
The OneGeology Portal has many more advanced features than those described here. To find out more, view the help pages available from within the application itself.
