[Qgis-user] snapping, revisited

[Micha Silver]

Setting snapping options has been discussed in the past, especially 
since the introduction of snapping for each layer individually. Yet, I 
think it's still not quite complete. There are two separate operations 
mixed together: the mouse tolerance, and snapping. What we have now is:
*  Setting snapping in the project settings (Settings->Project 
Properties->General) correctly overides the Global settings. So if I 
enter some number in the project properties windows, snapping works, 
regardless of the Global snapping setting. And if I have '0' in the 
project properties settings, there is no snapping, again regardless of 
the global settings.

*  The global settings (Settings->Options->Digitizing) allow to set 
mouse tolerance for tools like the information button, and the Delete 
Vertex tool in editing. This isn't actually snapping, to my mind, and 
might cause confusion.

So my questions/suggestions are:
Why not call the global setting what it really is: mouse or cursor 
tolerance. (currently called "Default search radius")
Is the global snapping ("default snapping mode" and "Default snapping 
tolerance") setting really necessary? It doesn't actually do anything.
Is it possible to set some sane default number for the "search radius" 
rather than zero? After each install, when you first try the information 
button, you get the popup window suggesting to set the "search radius". 
You have to check the scale, calculate some logical number for the 
search radius, then open Options-> etc.  to set the default. Could be a 
bit of a stumbling block for beginning users.

Regards,
Micha