show

Display plots for inspection of UAV logs

Since R2020b

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Syntax

show(mapper,data)

show(mapper,data,timeStart)

show(mapper,data,timeStart,timeEnd)

show(___,"PlotsToShow",plotNames)

plotStruct = show(___)

Description

show(mapper,data) generates all the plots stored in the flight log signal mapping object using the data from an imported flight log. For a list of preconfigured signals and plots, see Predefined Signals and Predefined Plots.

show(mapper,data,timeStart) plots all data starting at the given start time.

show(mapper,data,timeStart,timeEnd) plots all data within the interval [timeStart timeEnd] inclusive.

show(___,"PlotsToShow",plotNames) plots data using any of the previous syntaxes with plot names specified as a string array. These plot names are listed in mapper.AvailablePlots

plotStruct = show(___) returns the plots as a structure of plot names and figure handles.

Input Arguments

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`mapper` — Flight log signal mapping
`flightLogSignalMapping` object

Flight log signal mapping object, specified as a flightLogSignalMapping object.

`data` — Data from flight log
table | `ulogreader` object

Data from flight log, specified as a table, ulogreader object, or other custom option. The data is fed directly into the plot functions specified when you call updatePlot.

`timeStart` — Initial time stamp for signal
`duration` object

Initial time stamp for signal to extract, specified as a duration object.

`timeEnd` — Final time stamp for signal
`duration` object

Final time stamp for signal to extract, specified as a duration object.

Output Arguments

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`plotStruct` — Figures of individual plots
structure

Figured of individual plots, returned as a structure of plot names and associated figure handles.

More About

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Predefined Signals

A set of predefined signals and plots are configured in the flightLogSignalMapping object. Depending on your log file type, you can map specific signals to the provided signal names using mapSignal. You can also call info to view the table for your log type and see whether you have already mapped a signal to that plot type.

Specify the SignalName as the input to mapSignal. Signals with the format SignalName# support mapping multiple signals of the same type. Replace # with incremental integers for each signal name when calling mapSignal.

The predefined signals have specific names and required fields when mapping the signal.

Predefined Signals

Signal Name	Description	Fields	Units
`Accel#`	Raw accelerometer reading from IMU sensor	`[ax ay az]`	m/s²
`Airspeed#`	Airspeed reading of pressure differential, indicated air speed, and temperature	`[PressDiff, AirSpeed, Temp]`	Pa, m/s, ℃
`AttitudeEuler`	Attitude of UAV in Euler (ZYX) form	`[Roll, Pitch, Yaw]`	radians
`AttitudeRate`	Angular velocity along each body axis	`[xRotRate, yRotRate, zRotRate]`	rad/s
`AttitudeTargetEuler`	Target attitude of UAV in Euler (ZYX) form	`[TargetRoll, TargetPitch, TargetYaw]`	radians
`Barometer#`	Barometer readings for absolute pressure, relative pressure, and temperature	`[PressAbs, PressAltitude, Temp]`	Pa, m, ℃
`Battery`	Voltage readings for battery and remaining battery capacity (%)	`[Volt1,Volt2, ... Volt16, RemainingCapacity`	V, %
`GPS#`	GPS readings for latitude, longitude, altitude, ground speed, course angle, and number of satellites visible	`[lat, long, alt, groundspeed, courseAngle, satellites]`	degree, degree, m, m/s, degree, n/a
`Gyro#`	Raw body angular velocity readings from IMU sensor	`[GyroX, GyroY, GyroZ]`	rad/s
`LocalNED`	Local NED coordinates estimated by the UAV	`[xNED, yNED, zNED]`	meters
`LocalNEDTarget`	Target location in local NED coordinates	`[xTarget, yTarget, zTarget]`	meters
`LocalNEDVel`	Local NED velocity estimated by the UAV	`[vx vy vz]`	m/s
`LocalNEDVelTarget`	Target velocity in local NED coordinates	`[vxTarget, vyTarget, vzTarget]`	m/s
`Mag#`	Raw magnetometer reading from IMU sensor	`[x y z]`	Gs

Predefined Plots

After mapping signals to the list of predefined signals using mapSignal, specific plots are made available when calling show. To view a list of available plots and their associated signals for your specific object, call info(mapper,"Plot"). If you want to define custom plots based on signals, use updatePlot.

Each predefined plot has a set of required signals that must be mapped.

Predefined Plots

Plot	Description	Signals
`Attitude`	Stacked plot of roll, pitch, yaw angles and body rotation rates	`AttitudeEuler, AttitudeRate, Gyro#`
`AttitudeControl`	Estimated attitude of UAV and the attitude target set point	`AttitudeEuler, AttitudeTargetEuler`
`Battery`	Battery consumption plot	`Battery`
`Compass`	Estimated yaw and magnetometer readings	`AttitudeEuler, Mag#, GPS#`
`GPS2D`	Raw Lat-Lon plot for GPS sensor readings.	`GPS#`
`Height`	Stacked plots of barometer reading, GPS altitude reading, and fused height estimate	`Barometer#, GPS#, LocalNED`
`Speed`	Stacked plot of ground velocity and air speed	`GPS#, Airspeed#`
`Trajectory`	Trajectory in local coordinates versus target set points	`LocalNED, LocalNEDTarget`
`TrajectoryTracking`	Error between desired and actual position in NED coordinates	`LocalNED, LocalNEDTarget`
`TrajectoryVelTracking`	Error between desired and actual velocity in NED coordinates	`LocalNEDVel, LocalNEDVelTarget`