[GRASS-user] r.le.setup trouble

[Koen Hufkens]

I'm using 6.0.2 from the ubuntu repositories.

I'm currently looking for a repository offering a more recent release
but I don't seem to find one.

It has something to with this release because I tried the same thing on
the computer of friend of mine and it gave the same error.

Koen

On Tue, 2006-12-12 at 00:11 +1300, Hamish wrote:
> Koen Hufkens wrote:
> > I have some trouble with the r.le.setup module, maybe someone knows
> > the solution to this.
> > 
> > When I run r.le.setup to define my moving window specification to use
> > in further r.le analysis the module stalls when I'm being asked to
> > specify the size of my (rectangular) moving window. If I do so, let's
> > say a 3 by 3 window, it complains about a 0 being present while I
> > didn't type any zeros.
> > 
> > The full output of the procedure I followed is listed below:
> > 
> >  HOW WILL YOU SPECIFY THE MOVING WINDOW?
> > 
> >        Use keyboard to enter moving window dimensions   1
> >        Use mouse to draw moving window                  2
> > 
> >                                             Which Number?  1
> > 
> >     If a MASK is not present (see r.mask) a beep may sound
> >     and a WARNING may be printed that can be ignored.
> >     If a MASK is present there will be no warning.
> > WARNING: unable to open raster map [MASK in PERMANENT]
> > 
> > 
> >     Do you want to sample using rectangles
> >        (including squares) (y) or circles (n)?   (y/n) [y]  
> > 
> >     Enter number of COLUMNS & ROWS for the dimensions of
> >        the moving window (e.g., 10 10):  3 3 
> > 
> >     You entered a dimension as 0; enter dimensions again
> > 
> > ---
> > 
> > Entering other delimiters other than space didn't work either.
> > 
> > Any clues why I can't define ar rectangular moving window. I tried a
> > circular one and that did work?
> 
> What version of GRASS? There were substantial fixes for r.le.setup right
> before GRASS 6.2.0 was released. If 6.3-cvs, check out r.li too.
> 
> 
> The above works fine for me using the spearfish dataset. Space as the
> delim between "3 3". Draws the box, then moves on to the next question.
> 
> 
> here is the relevant code from r.le.setup/mv_wind.c
> 
> ...
> 			/* if sampling using rectangles/squares */
> 
>         else {
> back:
>            fprintf(stderr, "\n    Enter number of COLUMNS & ROWS for the dimensions of");
>            fprintf(stderr, "\n       the moving window (e.g., 10 10):  ");
> 
>            numtrap(2, tmp);
>            u_w = fabs(tmp[0]);
>            u_l = fabs(tmp[1]);
>            u_w0 = fabs(tmp[0])/mx[0];
>            u_l0 = fabs(tmp[1])/mx[1];
> 
> 				/* trap possible errors in dimensions */
> 
>            if (!u_w0 || !u_l0) {
>               fprintf(stderr, "\n    You entered a dimension as 0; enter dimensions again\n");
> 
>               goto back;
>            }
> 
> 
> 
> numtrap() is at the end of r.le.setup/sample.c.
> 
> 
> 
> Hamish