Commit of MATLAB Files

MATLAB_Functions/HuskyTrack/SenDes_HuskyTrack/GraphData.m

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+% 
+% Function:     GraphData 
+% Author:       Michael T. Ballard (michael.ballard@uconn.edu)   
+% Date:         Spring 2019  
+% 
+% Description:  The GraphData function takes a matrix of data pulled from
+%               the HuskyTrack Database and translated by this package's
+%               parsing function and then creates a visualization of this
+%               data overlaid onto a map of the University of Connecticut.
+%               If a first and last index are provided, only the subset
+%               denoted by the indices will be graphed.  Any provided
+%               indices that are beyond the range of the set are ignored.
+% 
+% Parameters:   dataMat     - A matrix of HuskyTrack Data as parsed by the
+%                             Parser function.  This parameter is required.
+%               first       - The index of the first user to be graphed.
+%                             This parameter is optional.
+%               last        - The index of the last user to be graphed.
+%                             This parameter is optional.
+% 
+% 
+% Return:       >0          - The Number of Users Graphed
+%               Else        - Failure
+%
+
+function [success] = GraphData(varargin)
+dataMat = varargin{1};
+[r,c] = size(dataMat);
+
+try
+    parsed_osm = evalin('base', 'parsed_osm');
+catch
+    try
+        load('parsed_osm.mat', 'parsed_osm');
+    catch
+        disp('Parsed File not found, Parsing...')
+        parsed_osm = ParseMap();
+    end
+end
+
+fig = figure;
+ax = axes('Parent', fig);
+hold(ax, 'on');
+
+plot_way(ax, parsed_osm);
+hold(ax, 'on');
+
+success = 0;
+if(nargin == 1)
+    for i = 1:r
+    	plot([dataMat(i).locations.longitude], [dataMat(i).locations.latitude]);
+        hold(ax, 'on');
+    	success = success+1;
+    end
+    hold(ax, 'off');
+elseif(nargin == 3)
+    first = varargin{2};
+    last = varargin{3};
+
+    for i = 1:r
+        if(i >= first & i <= last)
+            plot([dataMat(i).locations.longitude], [dataMat(i).locations.latitude]);
+            hold(ax, 'on');
+            success = success + 1;
+        end
+    end
+    hold(ax, 'off');
+else
+    error('GraphData may take only 1 or 3 inputs (dataMat) or (dataMat, first, last)')
+end
+end
+
+% Parse the map if a parsed version does not exist
+function [parsed_osm, osm_xml] = ParseMap()
+
+openOSM = 'map.osm';
+[parsed_osm, osm_xml] = parse_openstreetmap(openOSM);
+save('parsed_osm.mat', 'parsed_osm');
+assignin('base','parsed_osm',parsed_osm);
+
+end
+

MATLAB_Functions/HuskyTrack/SenDes_HuskyTrack/PullData.m

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+% 
+% Function:     PullData 
+% Author:       Michael T. Ballard (michael.ballard@uconn.edu)   
+% Date:         Spring 2019  
+% 
+% Description:  The PullData function opens a TCP connection to the
+%               specified host and places a query to the database designed for the
+%               HuskyTrack System.  The response to this query is then collected and
+%               stored for further manipulations and analysis.  Note that
+%               time is always considered to be 12:00 AM Midnight, thus the
+%               end date is exclusive.
+% 
+% Parameters:   url         - A URL to access the host database's API from
+%                             ie. 'http://sdp40.cse.uconn.edu/api/'
+%               startTime   - A time stamp to indicate the earliest desired
+%                             data.  In the form 'YYYYMMDD', ie. 20190503
+%                             (May 3, 2019)
+%               endTime     - A time stamp to indicate the latest desired
+%                             data.  In the form 'YYYYMMDD', ie. 20190503
+%                             (May 3, 2019)
+% 
+% Return:       dataMat     - A struct containing all users and their
+%                             location data retrieved from the host
+%
+
+function [dataMat] = PullData(url, startTime, endTime)
+
+api = [url 'locationdata?start=' startTime 'T000000&end=' endTime 'T000000'];
+options = weboptions('ContentType', 'json');
+data = webread(api);
+dataMat = jsondecode(data);
+
+end
+

MATLAB_Functions/HuskyTrack/SenDes_HuskyTrack/SenDes_HuskyTrack.prj

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+<?xml version="1.0" encoding="UTF-8"?>
+<MATLABProject xmlns="http://www.mathworks.com/MATLABProjectFile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0"/>

MATLAB_Functions/HuskyTrack/SenDes_HuskyTrack/SortData.m

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+% 
+% Function:     SortData 
+% Author:       Michael T. Ballard (michael.ballard@uconn.edu)   
+% Date:         Spring 2019  
+% 
+% Description:  The SortData function sorts a HuskyTrack retrieved data
+%               struct by the timestamp of each location point.  Should not
+%               be necessary for data taken directly from th database.
+% 
+% Parameters:   dataMat     - A matrix of HuskyTrack Data to be sorted
+% 
+% 
+% Return:       0           - Successful Termination
+%
+function [success] = SortData(dataMat)
+
+[r,c] = size(dataMat);
+
+for i = 1:r
+    [tmp ind] = sort({dataMat(i).locations.timestamp});
+    dataMat(i) = dataMat(i).locations(ind);
+end
+
+end
+