Signal Tracer

General

Visualize wifi theoretical speed levels as a heatmap in 3d model of floor or building. The program builds a heat map on a cutting plane that can be moved along the Z axis. The resulting series of images looks like a picture on a tomograph. Model itself rendered gray, access points rendered as green pyramids.

Screenshot

Building or floor model

The ASSIMP library is used to load models of floors or buildings, so all model formats supported by this library are supported. The program was tested using the FBX 2013 format. There is one test case in this repository.

Access points parameters

Data on the location of access points, their power and frequency, and other parameters are loaded as a json configuration file.

    "signal_sources": [
        {
            "position": {
                "x": -65.0,
                "y": -70.0,
                "z": -20.001
            },
            "frequency": 5150,
            "attenuation": 4,
            "power": 12,
            "gain": 5,
            "noise": 2,
            "channel_width": 40,
            "temperature": 300,
            "standard": "ax"
        }, 
        ... 
        ]

Build

Make shure you have compiler tools gcc, g++ (version 11 minimum), cmake, make installed.

Install development packages of SDL2, GLEW, OpenGL, GLUT, GLM, ASSIMP, nlohmann json.

Configure:

$ mkdir signaltracer/build
$ cd signaltracer/build
$ cmake .. -DCMAKE_BUILD_TYPE=Release

Build:

$ cmake --build . -- -j8

or

$ make

Usage

./sigtracer [model filename] [configuration]

to just show test case:

./sigtracer