layoutsqgis
In the version 2.18.6 if I make a layout with many thematic maps coming from the same shape, how can I avoid the refresh of the maps?
I am doing a layout with the same shapefile split in four maps with different thematic design but when I export it all maps are refreshed with only design.
Bap, right clicking on a QGIS composer map item only locks its position, not the layers displayed within the map item. To lock the layers displayed, you must enable the "Lock layers for map item" check box in the map item properties panel:
With QGIS 3 you can do this by creating a new map view (View--> New Map View).
Then you can create 2+ map themes from your layer panel(eye icon -->add theme) and choose which one you want to use in each map view.
The maps scrolls and zooms in/out simultaneously as you move your cursor into the main map view. It's a great feature!!
Best Answer
If I understand you well, what you have to do is when you create the first design of the first map, you should freeze (lock) the style by checking
Lock layer for map itemandLock layer style for map itemfor the first map. By locking the items and style of the items, you will stop refreshing the style on every change in the design.Then you can change the design and
Add new mapfor the new design and freeze (lock) the style by checkingLock layer for map itemandLock layer style for map itemfor the second map, and so on until you finish the four designs. Then you can export the layout to an image.For 2.18 version, you need to use
Lock LayersandLock style for Layerswhich act same asLock layer for map itemandLock layer style for map item.