Initial Version

MATLAB/+XPlaneConnect/requestDREF.m

@@ -0,0 +1,59 @@
+function status = requestDREF( DREFArray, varargin )
+%requestDREF request the value of a specific DataRef from X-Plane over UDP
+% Version 0.25
+%
+%Inputs
+%     DREFArray: Cell Array of DataRefs to be requested
+%     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)
+%     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
+%
+%Outputs
+%	status: If there was an error. Status<0 means there was an error.
+%
+%Use
+%	1. import XPlaneConnect.*;
+%   2. DREFArray = {'sim/cockpit2/controls/yoke_heading_ratio','sim/cockpit2/controls/yoke_roll_ratio'};
+%	3. status = requestDREF( DREFArray, '172.0.100.54' );
+%
+%Change Log
+%  10/02/14: [CT] V0.25: Updated to work with updated xpcPlugin
+%  04/19/14: [CT] V0.2: First Created
+%
+% Contributors
+%   [CT] Christopher Teubert (SGT, Inc.)
+%       christopher.a.teubert@nasa.gov
+%
+% To Do
+% 1. Complete- Receive response 
+%
+%BEGIN CODE
+
+disp('This Function is not functional yet-use the C version. Sorry for any inconvenience')
+import XPlaneConnect.*
+
+message = zeros(1,6);
+len = 7;
+
+%% Handle Input
+p = inputParser;
+addRequired(p,'DREFArray');
+addOptional(p,'IP','127.0.0.1',@ischar);
+addOptional(p,'port',49009,@isnumeric);
+parse(p,DREFArray,varargin{:});
+
+%% BODY
+    % Header
+        message(1:4) = 'GETD'-0;
+        message(6) = length(p.Results.DREFArray);
+    
+    % DREFS
+        for i=1:length(p.Results.DREFArray)
+            message(len) = length(p.Results.DREFArray{i});
+            message(len+1:len+message(len)) = p.Results.DREFArray{i};
+            len = len+1+message(len);
+        end
+        
+    % Send UDP
+        status = sendUDP(message, p.Results.IP, p.Results.port);
+                
+end