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the following code automates the project CRS for display as text in my maps.

[% @project_crs %]

Can anyone provide me with something which will automate the scale of the map?

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  • 3
    If you provide us with the software you're working with, we might be able.
    – Erik
    Commented Jun 23, 2021 at 8:25
  • I made an answer assuming you are using QGIS. @crustygaz , let me know if it work for you. Commented Jun 24, 2021 at 6:49

1 Answer 1

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You need to access to the scale of your map that is in the same layout.

To do so there is a function called item_variable() that could access to all the variables for any item in your layout.

Take the name of your map in your layout. In my case it is Carte 1

enter image description here

Then add a text box with the expression below to get the format you prefer. Don't forget to change the text Carte 1 to the name of your map.

To get a format like "18836.438"

[%map_get( item_variables( 'Carte 1' ), 'map_scale' )%]

to get a "rounded" value like "19000"

[%round(map_get( item_variables( 'Carte 1' ), 'map_scale' ), -3)%]

to get a value like "1 : 18 836"

'1 : ' || format_number(map_get( item_variables( 'Carte 1' ), 'map_scale' ),0)

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