Due to a hack, Gabmap has unfortunately been offline since December 2020. Since then, we’ve been hard at work to make Gabmap accessible again. As of today you should be able to login again and access your data. Please note that security of the server has been tightened. For this reason your original password has been changed. To obtain your new password, please fill in your e-mail address in the “Recover password” section on the login page.
There are two important updates to Gabmap which are important to mention:
The first update is that if you upload a kml file which contains polygons for each location in addition to the required points for each location (make sure the names are identical!), Gabmap will not use Voronoi tesselation to draw a small area around each point as usual, but will use the provided polygon. This may, for example, be useful when you collect data for specific regions. An example of such a kml file (for the UK) can be found here. The United Kingdom – BBC Voices project in the demo shows an example of the output using this kml file.
The second update is that you are now able to upload a weights file, in addition to the location file and the data file. This file should consist of two columns. The first column contains the place labels (identical to those in the other files), while the second contains associated weights (for example population size). The consequence of uploading this file will be that in addition to the original maps, a second set of maps will be generated in which the area of each location is scaled consistent with these weights. There are two approaches which are used for this, depending on the input data. The first is that instead of Voronoi tesselation (when places are associated with coordinates), a Voronoi treemap is generated which reflects the weights in the surface area of each polygon. The second approach is used when predefined polygons are associated with each location (see paragraph above). In that case a mosaic map is generated. You can take a look at the results of the final two projects in the demo account to see these types of maps. Note that these maps take a long time to generate (up to an hour). For this reason these maps are generated in parallel to the other maps. You will therefore be able to inspect the non-transformed maps before the weight-based maps are finished.