Map and navigation¶
The Workspace draws your survey with your own saved work over the immutable published release.
The base map, and why the ground may be blank¶
Nothing is switched on by default. A first look at a survey shows "Survey layers only" — the survey drawn on plain ground, with no base map underneath. That is the intended state, not a fault: a delivered survey over no base map is a complete survey.
A base map is chosen by a person, from the base-map pill on the map. Nothing auto-selects one.
What is on offer¶
The viewer does not carry a base map inside the product build. Which entries the chooser offers depends on the deployment:
| Entry | Source | Availability |
|---|---|---|
| OSM (Alonstech) | OpenStreetMap, OpenMapTiles and DataMeet, self-hosted by Alonstech as a reviewed, pinned archive | Only where that archive is installed on the deployment. It is not installed in production today, so the entry does not appear there at all. |
| OSM overlay | The same archive, as a transparent roads-and-labels overlay | As above. |
| Bhuvan | NRSC / ISRO imagery | Offered as an optional reference layer; coverage varies. |
| Esri (demo) | Esri World Imagery | Comparison only — not proposed for production use. |
Where the archive is absent the two OSM entries are removed from the chooser, not shown greyed out: which optional archive a deployment installed is not a fact about your survey.
More than one entry can be on at once — an imagery base with the roads overlay above it, for instance.
Credits¶
The map's status band, the in-app legal notices and the exported PDF all carry the licence credits the layers on screen owe. Where a boundary comes from the DataMeet dataset the product says so in as many words, and says that it is not an official survey boundary.
3D¶
The Workspace has a 3D view, and the control for it is not always available. It is enabled only when the release you are reading carries the data it needs — a terrain surface or a point cloud — and it can additionally be withheld by your plan. Where it is unavailable the control is drawn disabled, with the reason beside it, rather than hidden.
Navigation, and the view you come back to¶
Navigation is richer than pan and zoom: there are zoom in and out, window zoom, Fit survey (back to the delivered site), fit to selection, a view history, a compass, and — in 3D — camera presets and auto-rotate.
GISweaver reopens the last view saved for this person, this project and this release. It restores more than the camera: the rail's collapsed state, which side the dock is on, which layers were on, and where cards were placed. Two things override it — opening an explicit destination such as a deep link, and being inside a share, where no view is restored.
This page is being written.
Screenshots and a walkthrough of choosing a base map, switching layers and moving between 2D and 3D are not written yet.