Hi Rich,

Since I'm to blame for your current predicament ;-)
I'll try to answer your queries.


On Jan 30, 2010, at 10:00 AM, [email protected] wrote:

> Message: 3
> Date: Fri, 29 Jan 2010 14:05:47 -0800 (PST)
> From: Rich Shepard <[email protected]>
> Subject: [GRASS-user] Working Effectively With wxPython GUI
> To: [email protected]
> Message-ID:
>        <[email protected]>
> Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII
> 
>   Michael Barton's convinced me that I need to become as fluent with the
> wxPython GUI as I am with d.mon. I'm finding this to be a bit of a
> challenge.
> 
>   For example, I have all pertinent raster and vector layers loaded in the
> workspace. When I want to see only the r.param.scale output map (raster
> named 'morphology') I have to turn other layers on and off before just that
> one will display.

Same with d.mon and and d.rast/d.vect--except with d.mon you can't turn layers 
off and on, you have to recomposite them.

The layer manager acts like a stack of transparent or semi-transparent maps. 
You can also drag and drop them to rearrange the stacking order.


> Yes, I do specify 'zoom to selected map(s)' from the menu.
> Haven't figured out why.

The GUI, like d.mon will start up with your default region or whatever region 
has been set for that mapset. Set the computational region extents to match the 
display to see the same thing each time you start GRASS (a menu button in the 
zoom tool section of the display canvas). Zoom to selected map lets you zoom 
the display to match the extents of the map (like g.region rast=map, except 
that it only affects the display, not your computations). 

> 
>   When I want to overlay a vector map with fcolor=none, how do I do this
> from the list of loaded maps?

Double click on the vector map layer and change fill color to none

> If I turn on the 'basin' map, for example, it
> has a solid fill and blocks the map underneath it.

Either you have set nulls to be opaque (change for a single map in the map 
properties or for all maps in configure preferences) or the "fill" has non-null 
values and should be blocking out what is underneath.


> Changing the opacity
> level affects the vector lines, not the fill within each polygon.

Yes it does affect the fill unless there is a bug somewhere.

A couple of other hints. There is very good help for the GUI under the GRASS 
help menu. Also, you can save a workspace and restore it the next session.

Hope this helps 


Michael


_______________________________________________
grass-user mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/grass-user

Reply via email to