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Import and calibrate floorplans

Prepare a DXF floorplan for RF analysis by confirming units, scale, geometry, layers, materials, and openings.

Ambient LabsUpdated September 21, 2026

Coverage quality starts with geometry. SiteRF treats the imported drawing as a spatial model, so an incorrect scale or an irrelevant line can affect every computed distance and wall crossing.

Prepare the DXF

Export an ASCII DXF containing the floor you intend to model. Keep the useful wall and opening layers; remove distant title blocks, legends, and unrelated site geometry when practical. SiteRF reads supported two-dimensional entities and reports unsupported or malformed content instead of silently treating it as RF structure.

The importer rejects empty or excessively large drawings. If an import fails, correct the source rather than converting unknown geometry into a screenshot.

Import floorplan dialog accepting an ASCII DXF, or a PDF, PNG, or JPG floorplan to trace over, up to 20 MB.
Import floorplan — drop a DXF, PDF, PNG, or JPG
Import confirmation reading 'Imported 12 supported line segments,' before continuing to mark which layers are RF-relevant.
Import floorplan — geometry accepted

Confirm units and scale

When the file declares a recognized unit, verify it against a known span. When units are absent or ambiguous, use the calibration tool:

  1. Choose two points whose real separation is known.
  2. Enter the measured length and unit.
  3. Confirm that the resulting plan dimensions are plausible.

A two-times scale error produces a two-times distance error. Because path loss is logarithmic, the error does not appear as a simple two-times change in dB; it also changes which boundaries a path encounters.

Calibrate scale tool armed on the plan, prompting: click two points a known distance apart.
Scale — click two points a known distance apart

Decide which lines affect RF

Imported layers remain distinguishable. Use that information to separate structural walls from furniture, annotations, ceiling grids, and other drawing detail. A visible line is not automatically an RF boundary.

For every RF boundary, assign a material from the supported library. SiteRF uses explicit transmission and reflection loss values resolved for the simulated band. Layer-name suggestions are only suggestions; verify them before calculation.

Layers panel listing Exterior, Interior, and Glass layers with visibility, lock, reorder, and delete controls.
Design / Layers

Model doors and windows as openings

An opening replaces a span of its host boundary. Do not leave the original wall active behind the opening or draw a second overlapping boundary: either mistake double-counts or incorrectly preserves the solid wall. Assign the opening material when glass or another attenuating surface remains.

A placed door selected on an interior wall, with its host wall, offset, width, and RF material (Wood) shown in the properties panel.
Door on line-9 — offset, width, and RF material

Review before equipment placement

Check the exterior outline, important interior partitions, coverage areas, and known openings at a useful zoom. Confirm that the project origin and extents contain only the intended floor. Save a new floorplan revision after corrections so later results can be tied to the geometry they used.

The full imported floorplan fit to view, showing the exterior outline and interior partitions before equipment placement.
Fit to plan

Continue with Place and configure RF equipment.