GaugeAircraft

The GaugeAircraft aircraft is a module of the WASMAircraft modular aircraft, which shows how to create C++ gauges for a plane in Microsoft Flight Simulator 2024 using the Gauge API. Once the WASM Aircraft package has been built, this module will be available for flying from the aircraft selection screen:

Selecting The Gauge Aircraft In The Simulation

The SampleWasmModule.sln file will allow you to compile the code with Microsoft Visual Studio (2019 or 2022) in order to create the SampleWasmModule.wasm WebAssembly module which will then be loaded by the game. Once compiled, the module will automatically be copied into the following folder

..\PackageSources\SimObjects\Airplanes\MyCompany_Wasm_Aircraft\presets\mycompany\GaugeAircraft\panel

In order for the aircraft to use the gauges defined in the module, they have to be declared in the panel.cfg file found in the same folder:

[VCockpit01]
size_mm=1024,768
pixel_size=1024,768
texture=SCREEN_1
background_color=0,0,255
htmlgauge00=WasmInstrument/WasmInstrument.html?wasm_module=SampleWasmModule.wasm&wasm_gauge=Compass, 0,0,1024,768
 
[VCockpit02]
size_mm=1024,768
pixel_size=1024,768
texture=SCREEN_2
background_color=0,255,0
htmlgauge00=WasmInstrument/WasmInstrument.html?wasm_module=SampleWasmModule.wasm&wasm_gauge=Attitude, 0,0,1024,768
 
[Vcockpit03]
size_mm=1024,768
pixel_size=1024,768
texture=SCREEN_3
background_color=255,0,0
htmlgauge00=WasmInstrument/WasmInstrument.html?wasm_module=SampleWasmModule.wasm&wasm_gauge=Demo, 0,0,1024,768

As can be seen above, the gauges are referenced using the following URI scheme:

htmlgaugeNN=WasmInstrument/WasmInstrument.html?wasm_module=[MODULE].wasm&wasm_gauge=[GAUGE_NAME],[X],[Y],[WIDTH],[HEIGHT]

Note that if you make changes to the C++ code and recompile the WebAssembly module, you will have to build the modular aircraft package again. This can be done while the plane is used within the simulation.

Gauge Files

The following files are used for the gauges in this example:

Attitude.cpp: provides an implementation of an Attitude gauge.

Compass.cpp: provides an implementation of a Compass gauge.

Demo.cpp: provides a basic demo using the NanoVG graphics API to show how it can be implemented in your gauges (see here for more information on NanoVG).