MANNGIS On-line Map Help System

MANNGIS On-line Map Help System

Turn Map Layers On and Off

The MANNGIS On-line Map service allows many map layers to be displayed at any one time. You can control which layers are displayed using the Layers menu:

• Ensure the Layers menu is expanded by clicking on the Layers title.
• Tick the boxes next to the map layers you want to display, or deselect the ones you wish to exclude
• Click Refresh Map.
• The map will be regenerated to include those layers you specified. It will retain the previous area covered.

Notes:

1. Map layers may only be suitable for display at certain scales. If the current map scale is outside the appropriate limits for a map layer, it will appear “greyed out” in the layer list, as does the “Road Network - Small Scale” entry in the menu opposite.
2. The list of layers may vary from those in the menu opposite.
3. It is better to display fewer map layers to improve performance and avoid the map becoming too complex and confusing.
4. The MANNGIS On-line Maps employ sophisticated software to prevent conflicts between features and their labels within the map screen. It is possible, in a map which displays a lot of information, that certain feature labels may not appear. To remedy this, either turn off map layers you don’t need, or zoom further in to the map so the features become relatively less dense and there is more space to label them.
5. The Query tool will display information retrieved from ticked map layers

Map Layer Descriptions

The map information layers currently available in the application are described on the System Info page.

The background map layers are as follows:-

Background Map

This consists of different layers, depending on the map scale. With the exception of the Road Network, all are maintained by IoM Survey

Island Outline - the outline of the Isle of Man

1:100000 Map - is an image-based map

1:50000 Map - is a more detailed image-based map

Buildings, Roads and Water Features - areas for each of these feature types

Detailed Map - contains the full line detail of the IoM Survey large scale mapping

Map Text - contains detailed annotation - building names/numbers, road names, field numbers etc.

Road Network - Streets of the Isle of Man including official names, DoT Road Numbers, street descriptions and unofficial names. This is divided into two layers for small and larger scale display

Contours - 5 and 10m interval contours describing heights across the Island