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Floor plans and WiFi heatmaps
↩ Diagrams
A Floor Plan diagram uses an image of your space as the background, with device markers placed on it — and can display a WiFi signal heatmap captured by walking the floor with a laptop.
Creating a floor plan
- Select Diagrams → New diagram and choose the Floor Plan type.
- In the editor, set the background to an image of your floor plan (PNG or JPG). Resize it by dragging its handles or entering a width and height.
- Drop markers for devices and servers onto the plan — each is a compact status pin that links to the device or server. Markers show live status just like other nodes.
- Save.
Adding a WiFi heatmap
JOATOS can overlay measured WiFi coverage on a floor plan. Capturing a survey uses a small helper app on a Windows laptop:
- Run the WiFi scanner helper on the surveying laptop (it exposes a local scanning service).
- In the floor-plan editor's WiFi panel, start a New survey (capture) and give it a name (e.g. Level 2 · 5GHz).
- Click where you're standing on the plan — each click samples the nearby access points and adds a reading. Walk the space, sampling as you go.
- Select Finish to save the survey (or Cancel to discard it).
Viewing the heatmap
With a survey selected, the plan shows a colour-coded coverage overlay:
- Choose Best signal or a specific SSID.
- Switch the style between Dots (individual readings) and Blended (a smooth interpolated surface).
- A legend maps colours to signal quality (excellent → poor), and an expandable details section shows sample counts and per-SSID signal stats.
Notes & tips
- The heatmap reflects where you actually sampled — walk the whole area for even coverage.
- Floor-plan markers behave like other diagram nodes, so a floor plan is also a live status view of the equipment in that space.