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Use attachment

In QField, a field with Attachment widget can be used to:

  • mostrare e scattare foto
  • show and record videos
  • listen and record sound clips
  • show links to external files like PDFs or documents

Attachments
Attachments

To configure the Widget, please refer to the Attributes Form Documentation

Aggiungi una serie di immagini a un elemento

Desktop preparation

One or more pictures can be added to the feature. Here is an example of how to proceed.

Tabelle

It is necessary to set up two tables. One table where the features are stored and one with a list of pictures.

Apiary

Campo Tipo
id Text (UUID)
geometry Geometria
...

Apiary_pictures

Campo Tipo
id Text (UUID)
apiary_id Text (UUID)
path Text
...

Relazioni

Crea una relazione con:

  • apiary Layer di riferimento
  • id Campo di riferimento
  • apiary_picture Layer che fa riferimento
  • apiary_id Campo che fa riferimento
  • strength Composizione

Relations
Relations

Widget

Apiary

Imposta il valore predefinito dell'id del campo a uuid() o utilizza il widget UUID Generator. Non è necessario mostrarlo nel modulo.

widgets
widgets

Imposta il widget della relazione su relazione uno a molti e aggiungi la relazione al modulo

widgets
widgets

Immagine dell'apiario

Imposta il tipo di widget del percorso del campo a Attachment e aggiungilo al modulo

widgets
widgets

Geotagging

Lavoro sul campo

Some mobile devices will require for native camera mode to be turned off to enable geotagging.

To enable geotagging in case your native OS camera does not support this functionality, follow these steps:

  1. In QField, vai alle impostazioni e assicurati che Usa la fotocamera nativa sia deactivated sul tuo dispositivo mobile
  2. Completed! QField's own QML-based camera will now be utilized while taking pictures

Fetching Geotags (EXIF) from the image file into the attribute table

Desktop preparation

Sometimes you might be interested in automatically storing Geotags such as the latitude, longitude, orientation, etc. This information is also known as EXIF tags.

To store the EXIF information, follow these steps:

  1. Add an attribute per EXIF tag in the table that contains the pictures.
  2. In the pictures form, configure the default value of each attribute to the corresponding EXIF expression See QGIS EXIF function, and make sure Apply on update is activated.
  3. The EXIF tags that QField can capture are listed in the QGIS documentation (link above). However, this list might slightly varies depending on the mobile characteristics.
  4. Capturing EXIF tags requires accessing the full physical path of the picture. Be sure to reflect this in the QGIS expression. For example, the expression exif(@project_folder + '/' + "path", 'Exif.Image.Orientation') retrieves the orientation of the picture stored in path.
  5. Completed! QField's now capture and store the EXIF tags in the pictures table while taking pictures.

Dimensione massima dell'immagine

Desktop preparation

The advanced settings allow rescaling the photos to a maximum width/height in QFieldSync plugin > Project configuration

image

Configurable attachment path

Desktop preparation

QFieldSync provides the possibility to configure the path of picture attachments.

  1. Go to QFieldSync plugin > Layers Properties
  2. Scegli il layer, il campo e configura l'espressione

Use expressions to specify the path of the attachments. By default, pictures are saved into the "DCIM" folder, audio are saved into the "audio" folder and videos are saved into "video" with a timestamp as name.

picture path
picture path

Additional directories can be synchronized with pictures or other attachments. Extra paths can be configured in Attachment directories. All paths are relative to the project directory.

attachments directories
attachments directories

Note

Per questa funzionalità è necessario QGIS 3.14 o versioni successive