58 lines
1.8 KiB
Matlab
58 lines
1.8 KiB
Matlab
function status = sendDREF( dataRef, Value, varargin )
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% sendDREF Send a command to change any DataRef in X-Plane over UDP. This requires the X-Plane Connect Plugin to be running
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%
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% Inputs
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% dataRef: The X-Plane Dataref that will be chaged
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% Value: The value that the above dataref is set to
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% IP Address (optional): IP Address of the machine that will receive the data as a character array. Default is '127.0.0.1' (local machine)
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% port (optional): Port on the receiving machine where the data will be sent. Default is 49009 (XPlaneConnect). In general use 49009 to send to the plugin and 49005 to send to the x-plane udp
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%
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% Outputs
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% status: If there was an error. status<0 means there was an error.
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%
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% Use
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% 1. import XPlaneConnect.*
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% 2. dataRef = 'sim/aircraft/parts/acf_gear_deploy'; // Landing Gear
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% 3. Value = 0;
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% 4. status = sendDREF(dataRef, Value);
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%
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% Contributors
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% [CT] Christopher Teubert (SGT, Inc.)
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% christopher.a.teubert@nasa.gov
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%
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% To Do
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% 1. Verify Input
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%
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% BEGIN CODE
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import XPlaneConnect.*
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status = 0;
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%% Handle Input
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p = inputParser;
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addRequired(p,'dataRef');
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addRequired(p,'Value');
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addOptional(p,'IP','127.0.0.1',@ischar);
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addOptional(p,'port',49009,@isnumeric);
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parse(p,dataRef, Value ,varargin{:});
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%% BODY
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dataStream = zeros(1,7+length(p.Results.dataRef)+length(p.Results.Value)*4);
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% Build Header
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dataStream(1:4) = 'DREF'-0;
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% Add DREF
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dataStream(6) = uint8(length(p.Results.dataRef));
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len = 6+length(p.Results.dataRef);
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dataStream(7:len)=p.Results.dataRef-0;
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% Add Value
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dataStream(len+1) =uint8(length(p.Results.Value));
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dataStream(len+2:end)=typecast(single(p.Results.Value),'uint8');
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% Send DREF
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if length(dataStream) > 5
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status = sendUDP(dataStream, p.Results.IP, p.Results.port);
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end
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end |