Used to present a "Visual Analog Scale" (a slider control). It is used to create ITEMS can take any value between a minimum and maximum values and is represented graphically as a 'slider' control where the user can select the value by dragging the handle of the slider.

TITLE		DATA_CODE	QUESTION TYPE	COMMENTS
Title of Question		TITLE	TEXT AREA	This is the text to be shown when the FORM is not being edited
Title of Question on edit		TITLE_ON_EDIT	TEXT AREA	This is the text to be shown when the FORM is being edited (the user is answering the question)
Required		OBLIGATORIO_SN	BOOLEAN
Excluding		EXCLUYENTE_SN	BOOLEAN
Monitoring Report		INFORME_SEGUIMIENTO_SN	BOOLEAN
Minimum value		MIN_VALOR	NUMERICAL	Minimum value of the VAS scale
Maximum value		MAX_VALOR	NUMERICAL	Maximum value of the VAS scale
Increment		INCREMENT	NUMERICAL	Size of the increment between the minimum and maximum values
Number of decimals		NUM_DECIMALES	NUMERICAL
Formula		FORMULA	TEXT
Default value		VALOR_POR_DEFECTO	TEXT
Tabulation		TABULACION	NUMERICAL
Condition		CONDICION	TEXT
Visibility condition		VISIBILITY_CONDITION	TEXT	Condition to determine whether this ITEM can be viewed by the active USER or not. In run-time, if this condition evaluates to 'false' then the ITEM will not be returned by API functions like form_get_summary() (but it is still considered to exist in the FORM)
Number of associated questions		NUM_ASOCIADAS	NUMERICAL
Datacode		DATA_CODE	TEXT
Hidden		HIDDEN	VERTICAL_RADIO
Automatic options		OPTIONS	TEXT
Title format		LITERAL_FORMAT	JSON	Format attributes for the TITLE. For information about the contents of the JSON see FORM TEMPLATE OBJECT#LITERAL_FORMAT
Answer format		VALUE_FORMAT	JSON	Format attributes for the value. For information about the contents of the JSON see FORM TEMPLATE OBJECT#LITERAL_FORMAT
Arrangement		ARRANGEMENT	JSON	Attributes to define the arrangement of the question & answer in the screen. For information about the contents of the JSON see FORM TEMPLATE OBJECT#ARRANGEMENT_FORMAT
SIGNIFICATIVE VALUES				Array of properties
ARRAY OF 4 QUESTIONS	Meaning of value	OPTION_TITLE	TEXT	Used to assign a meaning to some values of the VAS scale. For example: A value of 0 means "Very bad", and a value of 10 means "Very good"
	Significative value	OPTION_VALUE	TEXT	One of the possible values of the VAS that has a special meaning
	Order	OPTION_ORDER	NUMERICAL	Used only for the visual presentation of the "Significative values" in design mode
	Image associated	OPTION_IMAGE	JSON	Example: { "ref":12312, "description":"Human body", "mime_type":"jpg", "code":"HUMAN_BODY", "scope":"PROGRAM", "bytes":"a2phc2JoamtzZGYga2hhc2Rr..." } Properties of the JSON string: ref (read only): is the internal reference assigned to the image stored in the system database. This value is assigned automatically when a new image is uploaded description: (optional) A string with a definition associated to the image in the current session language mime_type (optional): to describe the type of object ('jpg', 'png'...) code (optional): a string that represents a code assigned to the image. This value can be used to locate the resource instead of the reference (to make it more human-readable). scope: 'GLOBAL' \| 'PROGRAM': determines whether this image is a GLOBAL resource that can be used in different FORM TEMPLATES or belongs to an specific PROGRAM. Note that 'PROGRAM' scoped resources will be removed from the system database if they are no longer necessary, while GLOBAL scoped objects can only be removed manually using the API function library_resource_delete() bytes: array of bytes BASE 64 encoded. The composition of the JSON string varies depending on the type of API call: Functions that return information about an ITEM (for example library_form_get_question (), or form_get_summary() ), the 'bytes' property is not returned to avoid an overhead in the system performance and the returned packet size. If you need to retrieve the bytes of the image, use the API function library_resource_get() passing as reference the 'id' property Functions that modify an ITEM (for example library_form_set_answer()) can provide the bytes of the image to be stored in the system database. When this happens, a new 'id' is assigned automatically

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