Help topics
- Purpose of the site
- Adjusting the Ordnance Survey Maps Compass
- Browser Support
- Compass features
- Compass or GPS - pros and cons for navigation
- Compass Test
- Draw Single Leg Route
- Extending the compass direction of travel arrow
- False readings when using a compass
- Fine Tuning the Ordnance Survey Maps Compass
- Getting Started with Ordnance Survey Maps Compass
- Google Compass
- GPS or Compass - which is best for navigation?
- Grid references test
- Helpful Tips
- How to use a compass
- Import Routes
- Latitude and longitude positions: degrees, minutes and seconds
- Magnetic declination or variation
- Magnetic declination or variation adjustment
- Magnetic declination or variation calculation
- Map projections
- Map reading
- Map reading skills test
- Map symbols
- Menu
- Moving and Manipulating the Ordnance Survey Maps Compass
- Multi legged Routes
- My Ordnance Survey Compass Map Routes
- Negative magnetic declination or variation
- New Features
- North: different types
- Open Routes
- Ordnance Survey maps projection
- Panning and Zooming with Ordnance Survey Maps Compass
- Positive magnetic declination or variation
- Print Map Function
- Privacy policy
- Resizing the compass direction of travel arrow
- Route information
- Safety
- Save and Store Map Routes
- Single leg or multi-legged routes?
- Single Leg Route
- Stored Map Routes
- Test your compass reading skills
- Tips
- Types of bearings used in navigation
- Updates
- User Guide
- Watch as Compass
- What is a compass?
- What type of compass is used on the site?
- Zooming with Ordnance Survey Maps Compass
- Disclaimer
- Credits and Licence Agreement
Panning and Zooming with Ordnance Survey Maps Compass

Panning
To move the map click and hold the left mouse button and drag the map to a new place.
You can also move the map North, South, East or West using the pan arrows (1). These can be found at the top left corner of the map.
The map cannot be moved if the compass is showing. In this case, click the 'Hide Compass' button, move the map to the required position, then click 'Show Compass' which will return the compass to its last position.
Zooming in and out - changing the scale
Each zoom level is made of a different style map shown at different scales, each one showing more or less detail. Some maps will be of the same style, but at a smaller or larger scale.
To see a map with more detail you need to zoom in. You can do this using the zoom bar on the left side of the map. Drag the zoom slider (3) up or click the + sign on the top of the zoom bar (2). To see a map with less detail you need to zoom out. To do this, click the - sign on the bottom of the zoom bar (4) or drag the zoom slider down. As the scale changes the map will also change to show a different Ordnance Survey map, one which is more appropriate for the scale.
To move the map click and hold the left mouse button and drag the map to a new place.
You can also move the map North, South, East or West using the pan arrows (1). These can be found at the top left corner of the map.
The map cannot be moved if the compass is showing. In this case, click the 'Hide Compass' button, move the map to the required position, then click 'Show Compass' which will return the compass to its last position.
Zooming in and out - changing the scale
Each zoom level is made of a different style map shown at different scales, each one showing more or less detail. Some maps will be of the same style, but at a smaller or larger scale.
To see a map with more detail you need to zoom in. You can do this using the zoom bar on the left side of the map. Drag the zoom slider (3) up or click the + sign on the top of the zoom bar (2). To see a map with less detail you need to zoom out. To do this, click the - sign on the bottom of the zoom bar (4) or drag the zoom slider down. As the scale changes the map will also change to show a different Ordnance Survey map, one which is more appropriate for the scale.

Once the compass is opened the map scale cannot be adjusted without restarting the application. To restart, select the 'New Routes' option from the left side menu.
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