QGIS Layer Transfer – How to Copy Paste Layers Between Projects

copylayersqgis

Using QGIS 2.4, how can I copy one or more layers (with its properties, style, and the path of the source data) on QGIS and paste it in a different .QGS project?

I tried to make this, clicking in a layer and drag and drop in the Layers window of another .qgs project but don't take the properties of the first layer.

Best Answer

just right click the layer and select save as...layer definition file and save... then from another project, click the layer menu and select add from layer definition file... and that's it. ;-)

Related Solutions

[GIS] How to copy a group of layers between QGIS projects

You can open layers contained in a project into the current QGIS session by using the Import Layers to Project plugin.

This will let you choose which layers you would like to load into your current QGIS session.

You could also take a look at the Embed Layers and Groups functionality. This allows you to open layers from a project. It stops you from changing these layers in the project you have opened them into, but if you update them in the base project, it will automatically update the styles of the embedded layers.

QGIS – Accessing Menu Functions Like Copy Paste Style Using Python and PyQGIS

I'll answer the concrete question of copying/pasting layer styles with PyQGIS:

Select the source layer in the QGIS layer tree either by hand or by code.
Run the following command to copy the style:
```
iface.actionCopyLayerStyle().trigger()
```
Select another layer either by hand or by code (as you mentioned, it could be a layer in another QGIS window).
Run the following command to paste the style:
```
iface.actionPasteLayerStyle().trigger()
```

In general, some QGIS functionality is exposed through iface object. Have a look at the different actions that you could call (trigger) at http://www.qgis.org/api/classQgisInterface.html

For your specific use case, since you seem to be managing the clipboard, I suggest you to do this:

Save the layer style into a temporary QML file (using layer.saveNamedStyle( pathToQMLFile )),
Copy the path to that file into the clipboard,
When pasting, load the style from the QML file path in the clipboard (using layer.loadNamedStyle( pathToQMLFile ) and then layer.triggerRepaint()).

Best Answer

Related Solutions

[GIS] How to copy a group of layers between QGIS projects

QGIS – Accessing Menu Functions Like Copy Paste Style Using Python and PyQGIS

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