Друкування

Extent defined by the user on the fly in Lizmap

To add print capabilities in the online map, you have to create at least one print layout without atlas enabled. Then you will find the list of your layouts in the Layouts plugin tab. They are enabled by default but you can disable it or set permissions for groups.

Примітка

Printing will respect the feature filters and selections.

Creating the layout

In your layout, you can add :

• A map, without an atlas enabled

• An image to North arrow

• An image for the logo of your organization

• A legend that will be fixed for all printing

• Labels

• A scale

  • Either Numeric

  • Or set Fit segment width with a correct reference anchor point to adjust the position of the scale bar

• A location map, a map for which you have enabled and configured one Overview

• Since QGIS 3, you can use QGIS expressions, in your labels for instance. You can create automatic source label according to visible layers following this example on the QGIS documentation.

Dynamic content

You can allow the user to modify the contents of certain labels (title, description, comment, etc). To do this, you need to add an identifier to your label in the layout.

Попередження

Each identifier must be unique for the whole layout. Identifiers must be strings, without integers or spaces (e.g. it must be custom_title, nor 1 neither custom title).

Lizmap will automatically ask the user in the web-browser to fill each fields.

Порада

• If your label is pre-populated in QGIS, the field will be pre-populated too in the web-browser.

• If you check „Render as HTML“ for your label in QGIS, you will have a multiline label in Lizmap accepting HTML code. But you will need to <br> for line breaks.

The preview in Lizmap will be similar to this screenshot. The light rectangle is the area the user can define in the web browser. The user can also set the map description and title.

Scales

The print function will be based on the map scales that you set in the plugin Map (Map options — The general options of the map).

Overview

You can create a location map by creating a second map for which you create an overview with the first map as the Map frame. QGIS documentation

Layout with an atlas when using a popup

Read in the popup chapter, Link to a PDF layout using the QGIS Atlas

Adding your own images in a layout

If you add some custom images in a layout, such as custom North arrow or your organization logo, the server needs to access these images too.

• Either use an image with an URL http:// so that your image is accessible on both your local computer and on the server.

• Or use QGIS expression to build a compatible path on both desktop and server (it should work out of the box, but in case it’s not working, you can use an expression.) :

  1. Put your images in the media directory (see Media), this is not mandatory, you can put it next to your project file.

  2. Use an QGIS expression @project_home || '/media/organization_logo.png'.

  3. Use slash even if you are on Windows.