Introduction

Adding, configuring and viewing the active elements of the system are made considerably more straightforward if you can view a scaled image of the area in the background. You can use a map, aerial photo, scaled diagram or an integrated mapping service of the area as your background. Aerial photos are the most useful for the initial configuration stage.

This section contains instructions for uploading and enabling a static Background Image.

For information about using a dynamic integrated mapping service (Open Street Map or Google Map) please refer to this documentation: Displaying a Map. Either static or dynamic options can be enabled on and off depending on the user's preference.

Contents

Importing a Background Image

A background image may be uploaded and stored, as well as the Open Street Map or Google Map, and either can be enabled on and off depending on the user's preference.

To upload a background image:

1. Enable the Config Function. Go to the Configuration Tree's basic settings, by selecting the master folder - the Site Name folder.
   
   

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2. Select the Background Image button.
   
   

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3. The Update the Site Background Image wizard will appear in a new window. There will be two options:
   
   

    

   Select a Picture: This is represented by a file graphic. Select this if no background image has previously been uploaded.

   Clear Background Image: This is represented by a dustbin graphic. Select this to delete the current background image, and then Select a Picture to upload a new one.

4. Search through your files and select the desired image. Images must be at least 1024x1024 pixels. When exporting a maximum resolution image from Google Earth™ Pro, resolution is 4800x2886.
   
   

    

5. Once the selected image appears in the Update the Site Background Image window, select Next.
   
   

    

6. Next, the latitudes and longitudes of the Top Left and Bottom Right hand corner of the image must be configured in order to correctly align and rotate the image. Orange and red position markers placed on the image representing the Top Left and Bottom Right must be placed on the image. These do not have to be exactly at the corners, you could choose easily identifiable point of interest in the general vicinity of Top Left/Bottom Right. To determine the coordinates of the points, you could use a GPS device or an application such as Google Earth™. For example, below there is an image taken from Google Earth Pro™ in which a tree and an electricity pylon have been located and the co-ordinates labelled.

7. You can use your mouse wheel to zoom in on a point to ensure a more accurate alignment:
   
   

    

8. In the example above an image has been prepared with a square marker in grey. This allows you to align the orange crosshairs on it by dragging the crosshairs with the mouse:
   
   

    

9. You can use your mouse wheel to zoom out or pan to repeat the process with the bottom right hand marker in red:
   
   

    

10. Repeat the aligning process:
    
    

     

11. Next enter the correct latitude and longitude points for each of the crosshairs:

     

     

12. Select Finish to complete the wizard.

13. Finally, go to User Details (either through the System Menu or through selecting the specific user in the Configuration Tree's Users folder). In Edit mode, under Background Display, select Display Background Image:
    
    

     

     

14. Click Save.

It is possible to simultaneously enable Display Open Street Map or Google Map and adjust the transparencies of each background in the PPI Navigation Control to view both concurrently:

Example Map & Co-ordinates

Here is an example of a map with markers placed on it, to allow users to familiarize themselves with applying a Background Image:

These are the corresponding co-ordinates for the markers on the image:

Top Left: Latitude: 51.592106, Longitude: -1.393701
Bottom Right: Latitude: 51.584506, Longitude: -1.370322

Video

Here is a video to show how to apply a Background Image:

Background Image Backup / Restore

This section documents restoring a background image on a server that has been reset, or, on a different server.

Follow these steps to restore the background image:

1. Copy the image from the location where its backed up: ProgramData/Navtech/BackgroundImage/BackgroundImage.dat and place the image file in the same location on the new or recovered server.

2. Enable the Config Function. Go to the Configuration Tree's basic settings, by selecting the master folder - the Site Name folder.

3. Select the Background Image button:
   
   

    

4. The wizard will open and will check both the database and the file system for the image.
   
   

    

5. If it finds the image in the database it will return it, otherwise it will return the image if it is saved in the file system:
   
   

    

6. Click Next:
   
   

    

7. The saved image will be displayed with the settings pre-populated. Click Finish and the image will be displayed on the PPI.
   
   

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