Hi,
The reason you are not able to see the 2D map is due to the update in the variable names in the gps data. Variable names "lat", "lon" and "alt" has been replaced by "latitude_deg", "longitude_deg", and "altitude_msl_m"
You can try to update the signal mapping and load the updated flightlogsignalmapping object and ulog data through workspace.
>>u = ulogreader("b0a85256-2690-49bb-8b93-a76311c32c86.ulg");
>>fs = flightLogSignalMapping("ulog");
>>fs.mapSignal("GPS", @(data)getTime(getTable(data, "vehicle_gps_position")), ...
@(data)getRawGPSValue_update(getTable(data, "vehicle_gps_position")));
-----------------
function v = getRawGPSValue_update(gpsTable)
try
v = [double(gpsTable.latitude_deg), ... % lat
double(gpsTable.longitude_deg), ... % lon
double(gpsTable.altitude_msl_m)+300, ... % alt
double(gpsTable.vel_m_s), ... % ground speed
double(gpsTable.cog_rad), ... % course angle
double(gpsTable.satellites_used) % satellites visible
];
catch
%handle error
end
end
-------------
function tbl = getTable(data, name)
%getTable Extract table from data
try
indx = strcmp(data.AvailableTopics.TopicNames, name);
tbl = [];
if(any(indx))
temp = data.readTopicMsgs('TopicNames',name);
tbl=temp.TopicMessages{:};
end
catch
%handle error
end
end
-------------
function t = getTime(tbl)
try
t = tbl.timestamp;
t.Format = 's';
catch
%handle error
end
end
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