Dashboard concept

[timlinux]

GeoPackage if you want to try:

CasteloBranco.zip

[timlinux]

CasteloBranco.gpkg.zip

Version 2 with nicer implementation

[pigreco]

create a virtual field (test) on the highways layer and populate it with is_selected ()

then use the following expression:

round(
aggregate( 
'highway',
'sum', 
round( length( transform( $geometry, 'EPSG:4326', 'EPSG:32629' ) ) / 1000 ),
filter:="test"='true'), 
1 )

[pigreco]

improved solution, use this expression:

if( num_selected('highway') > 0 ,round(
aggregate( 
'highway',
'sum', 
round( length( transform( $geometry, 'EPSG:4326', 'EPSG:32629' ) ) / 1000 ),
filter:="test"='true'), 
1 ),0)

CasteloBranco.gpkg.zip

[PedroVenancio]

Joining all ideas!

if( num_selected('highway') > 0, 
  round( 
    aggregate( 
      'highway', 
      'sum', 
      ( (length( transform( $geometry, 'EPSG:4326', 'EPSG:3857' ) ) / 1000) ), 
      filter:=is_selected('highway', $currentfeature ) 
    )
  , 1)
, 0)

[PedroVenancio]

CasteloBranco.zip

[timlinux]

CasteloBranco.gpkg.zip

[mauriciomarquezgoa]

Muchas gracias!!! Espectacular!

[pigreco]

To have the dashboard in the mouse pointer:
use the @canvas_cursor_point variable in the geometry_generator field:

CasteloBranco.zip

[narceliodesa]

Very interesting, I think they could develop a new Decoration module called Dashboard. Where we could have the styling options linked to each panel. This frees us from the need to create a point file to assemble the dashboard graph.

Today in decorations the closest thing to that is the Title Label

[narceliodesa]

The bar above was made using the decorations.
It is as responsive as the points, but further customization is not possible.

[timlinux]

Here is an update that uses a better positioning schema and increases the number of elements to cover a secondary layer for building.

CasteloBranco.gpkg.zip

[timlinux]

This update adds a new font column to the dashboard table and adds column icons. You need to first install the UN-OCHA glyph font icons for it to work. These are a free font available here: https://unhcr.github.io/Humanitarian-Font/

Latest GeoPackage containing all the logic for the above image is available here:

CasteloBranco.gpkg.zip

[timlinux]

Another update using @nyalldawson 's tip to use layer dependencies to automatically update the dashboard labels

CasteloBranco.zip

[timlinux]

Here is the GeoPackage we created while recording this YouTube video walkthrough:

https://youtu.be/lJTV90SvRAM

QGISDashboardWalkthrough-Badajoz.zip

[nazuk27]

Is it possible to publish these dashboards online using qgis2web plugin or any other web service with all the features (i.e. automatic dashboard update features) available online?