[Qgis-user] i have been digitizing polygons for a few days and QGIS crashed

[Garth Fletcher]

Alexandre Neto wrote:

> Hi,
>
> You are missing one of the most important aspects of QGIS (and most GIS
> software): The data is independent of the project.
>
> The project > save action saves the project, which include what layers you
> have loaded, what order you gave them, their styles, and so on.
>
> When you edit vector layers, you need to use the save icon in the
> digitising toolbar, the one next to pencil icon that you have probably
> clicked to start editing. This is done layer by layer.

The only time I have seen QGIS prompt the user to save an edited but not 
yet saved layer is when you Quit.
At that moment it does seem to remind one about any unsaved layers.

However, if it crashes then any unsaved new layers, or unsaved changes 
to pre-existing layers, are lost.

The crucial step,as Alexandre says, is to save the changes in the layer 
by clicking on the floppy diskette icon next to the pencil...
Alternatively, toggling the Pencil to turn of editing will also prompt 
you to save changes.

-- 
Garth Fletcher