Creating Maps

This page contains information to help you create maps in MapTube.
The topics covered are:

Quickstart - How to Create a Map
Before Creating Maps - Create an Account
Map Creation Procedure

Help Displaying Maps is covered in a different section.

 

Overview

Before uploading to MapTube, maps need to be created from shapefiles using the Google Map Creator tool and placed on the web. Maptube takes a link to this location and creates a new map reference from the information found there. Only the information describing the map is stored on the Maptube web server, so the user is responsible for making sure that the directory on the web server remains visible. If this is deleted or renamed then the map will no longer work on Maptube.

The benefit of uploading a map to MapTube is in searching and comparing related data using the search facility. For example, 'London' could be entered as a keyword and maps of population density and transport links selected for viewing. These two layers are then automatically displayed on a Google Map, allowing them to be compared visually using the fade in and out function.

 

Quickstart - How to Create a Map

  • Create the map with the Google Map Creator and save the settings xml file.
  • Copy the tile directory and xml settings file to a web server.
  • Log in to MapTube and choose Add A New Map.
  • Copy the url of the settings xml file into the XML URL box and click 'Test'.
  • Fill in the rest of the information on the page and click on 'Submit' to upload the map.

 

Before Creating Maps - Create an Account

A MapTube account is required to create maps, which can be created from the 'login' page. Setting up an account requires a valid email address because an activation code is sent by email. The account cannot be used until the link in the email is visited and the activation code verified. Account creation is fully automatic, so this can be completed in a few minutes.

 

Map Creation Procedure

 

step one
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Use the Google Map Creator tool to create the map from a shapefile, making sure to save the settings.



Figure 1:
Creating a map using the Google Map Creator tool

 

step two

With the tile directory and settings file on the local disk, copy both to a web server where they will be accessible to the public.



Figure 2:
The image above shows the files for the London Tube Map created using the Google Map Creator and copied to a web server

The example map above is made up of three parts:

  1. The tile directory called 'tubemap-tiles' which contains all the pre-rendered Google Map Tiles. This directory must remain publicly accessible for the map to work on MapTube.
  2. The html file containing the Google Map. In this example the map can be viewed at the address: http://www.myserver.co.uk/maps/tubemap.html. This file is not used by MapTube and can be deleted, although it is useful for testing.
  3. 'tubemap.xml' which is the settings file saved from the Google Map Creator. This contains the geographic extents of the map, the maximum zoom level and the colour scale information. This file is read when the map is first created in MapTube, but can be deleted once the map is working in MapTube.

NOTE: The Google Map Creator also creates a '.gif' file containing the UCL logo which is referenced in the '.html' file. This has been omitted from the directory listing above for the sake of clarity and is unnecessary when importing maps into MapTube.

 

step three

Log in to your account and go to the create maps page.

 

step four

Enter the url of the settings file into the "XML URL" box and click the "Test" button. In the example in step 2, this would be "http://www.myserver.co.uk/maps/tubemap.xml".

If all went well, then the map should be visible on the right hand side of the screen. If the map did not appear successfully then it is likely that the URL to the XML settings file is wrong. Open up a browser window and copy the URL into the browser's location window. You should be able to see what's in the settings file. Also check that the directory containing the map tiles is in the same location as the settings file. There should be a settings ".xml" file and a directory called "mymapname-tiles".

The map title box should be filled in automatically from the settings file. This can be changed if necessary. The keywords box contains space separated keywords which are used when searching for maps. Enter some keywords into the box that will allow you to search for this map in the future e.g. "1996 air pollution roadside london". Then the map will be found by searching for the keywords "1996", "pollution" or "london".

The next required field is the description field, which needs to contain a short description of the map used with the icon to identify the map when searching and browsing. This field is also searched for keywords on the search page.

 

thumbnail 1 thumbnail 2

Figure 3:
The positions of the 'Map Title' and 'Description' fields on the MapTube homepage and on the search page.
The 'more information' link takes you to a more detailed information page specific to that map

 

The final field is the information field, which is used for more detailed information about how the map was made and what it shows. This is intended to be a one page description and is accessible by clicking on the 'more information' link under the map description (see figure above).

 

step five

If the map and colour scale are visible and all the required fields have been entered then the "Submit" button will be enabled. When this is clicked, a link to the map will be created. This should happen relatively quickly and the page change to show that the upload was successful.

 

Additional Information

Maptube only takes a link to the map on your web server, so it is important that the map remains in the same place and is accessible. Only the creator of the map can edit or delete the map reference, which is done through the "manage" page. This allows you to edit the title, keywords, description and information, or to delete the reference to the map completely.

After a map has been successfully created, only the '-tiles' directory need remain on the server. Everything else can be deleted.