ZGUS Portable Map Server Project

This site provides information about one of the projects of ZGUS: using map servers in the field. Currently navigation features are provided. Relevant overlays additional to information from a basemap is provided. Inclusion of data collection features is part of the development roadmap.

News

Map servers in the field

Site maps.zgus.com is an Internet site that simulates a portable map server in the field without Internet access

Site maps.zgus.lan is a map server site connected directly to a router as part of a LAN (local area network). The router includes a WiFi access point that can connect your phone, tablet or laptop to the same LAN as the map server by WiFi, even if there is no Internet access. Generally if your mobile phone has no Internet access neither will the router be able to access the Internet, but the router does not need to access the Internet to provide you with maps from the local map server on the LAN.

The default basemap is ‘Local with Web Server’ and looks for the basemap on the same site as the web server. Hence if web site is maps.zgus.com then this is the site used for basemaps. Likewise if web site is maps.zgus.lan then then this is the site used for basemaps.

The map server include a caching map server, generating the tiled maps as needed for the basemap, from Australian OSM data preloaded into a database.

With simulated local access by Internet some maps allow switching basemaps to outside the server for comparison purposes. See Coober Pedy /cp for example.

For field use lower power, smaller and lighter servers are preferable. There is a user convenience cost to this. Generating cacheable map tiles for basemaps is computationally expensive and the noticeable initial lag when moving into and zooming around an area which has not had its map tiles cached is considerably higher for lowest power local servers tested.

There is more information in section ‘How does this work?’ on /maps-nq.

Selected Map Areas

Established Opal Fields at Coober Pedy

Established Coober Pedy Opal Fields with various layers representing South Australia Mining, Native Title and other interests.

Six Selected Areas in North Queensland

A default field test area in Northern Queensland, which in the absence of further agreement, permissions or licensing consists of six state regulated areas set aside for recreational and tourist fossicking. A licence is required to fossick in these areas and can be purchased online.