info

Display label, sublabel, or attribute information stored in label definition creator object for multisignal workflow

Description

info(ldc,name) displays information about the specified label, sublabel, or attribute stored in the labelDefinitionCreatorMultisignal object ldc.

example

infoStruct = info(ldc,name) returns the information as a structure.

Examples

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Load an existing label definition table.

labelDefFile = fullfile(toolboxdir('driving'), 'drivingdata', 'labelDefsMultiSignal.mat');
ld = load(labelDefFile)
ld = struct with fields:
    labelDefs: [6×6 table]

Create a labelDefinitionCreatorMultisignal object from the label definitions table.

ldc = labelDefinitionCreatorMultisignal(ld.labelDefs)
ldc = 
labelDefinitionCreatorMultisignal contains the following labels:

	Car with 0 sublabels and 0 attributes and belongs to None group.	(info)
	LeftLane with 0 sublabels and 0 attributes and belongs to None group.	(info)
	Road with 0 sublabels and 0 attributes and belongs to None group.	(info)
	Sunny with 0 sublabels and 0 attributes and belongs to None group.	(info)
	Urban with 0 sublabels and 0 attributes and belongs to None group.	(info)

For more details about attributes and sublabels, use the info method.

Add an attribute 'Color' to the label 'Car'. Specify the attribute type as 'List' and add items to the list.

addAttribute(ldc,'Car','Color','List',{'Red','Green','Blue'});

Display the details of the updated labelDefinitionCreatorMultisignal object.

ldc
ldc = 
labelDefinitionCreatorMultisignal contains the following labels:

	Car with 0 sublabels and 1 attributes and belongs to None group.	(info)
	LeftLane with 0 sublabels and 0 attributes and belongs to None group.	(info)
	Road with 0 sublabels and 0 attributes and belongs to None group.	(info)
	Sunny with 0 sublabels and 0 attributes and belongs to None group.	(info)
	Urban with 0 sublabels and 0 attributes and belongs to None group.	(info)

For more details about attributes and sublabels, use the info method.

Display information about the attribute 'Color' under the label 'Car'.

colorStruct = info(ldc,'Car/Color')
colorStruct = struct with fields:
           Name: "Color"
           Type: List
      ListItems: {'Red'  'Green'  'Blue'}
    Description: ' '

Display the field ListItems in the 'Color' attribute of the label 'Car'.

colorStruct.ListItems
ans = 1×3 cell
    {'Red'}    {'Green'}    {'Blue'}

Input Arguments

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Label definition creator for the multisignal workflow, specified as a labelDefinitionCreatorMultisignal object.

Name of label, sublabel, or attribute in the ldc object, specified as a character vector or string scalar whose form depends on the type of name you specify.

  • To specify a label, use the form 'labelName'.

Example: info(ldc,'TrafficLight')

  • To specify a sublabel, use the form 'labelName/sublabelName'.

Example: info(ldc,'TrafficLight/RedLight')

  • To specify an attribute, use the form 'labelName/attributeName' or 'labelName/sublabelName/attributeName'.

Example: info(ldc,'TrafficLight/Active')

Example: info(ldc,'TrafficLight/RedLight/isOn')

Output Arguments

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Information structure, returned as a structure that contains the fields Name, SignalType (for labels), LabelType (for labels), Type (for sublabels and attributes), Description, Attributes (when pertinent), Sublabels (when pertinent), DefaultValue (for attributes), and ListItems (for List attributes).

Introduced in R2020a