roadmap question

[Daniel Calvelo Aros]

Russell Nelson writes:
> Jonathan Coles writes:
> > seen and having multiple rasters is useful. however, when would 
> > it be necessary to *blend* two (or more) rasters? (i'm not trying 
> > to sound like i'm against the idea, i just want to know when it 
> > would be used.)
> 
> If you want to see how useful this can be, check out how mapview 
> does it:
> 
> http://pygps.org/#mapview

Indeed. You think it is just a gizmo until you've used it. Afterwards, it
becomes as useful as having a legend. Really.

Blend your DEM with hillshading with a scanned chart. 

Blend three kernel-based distribution rasters in R,G and B hues to get a
three-variable statistical view.

Blend your DEM with a landsat image.

See?

--Daniel