error on using idrisi/ArcView images as masks?

[Peter Schlesinger <pschles@whrc.org>]

Hello,
I'm trying to get GSTAT 2.0f to work using IDRISI images (or even
ArcView grids for that matter), but I keep getting errors on both of
these. Yet the grid or Idrisi image is intact by the standards of each
of those softwares. So, some questions:
1) Is the real format for IDRISI expected to be the old 6-byte or new
4-byte?
2) The error I'm getting from GSTAT when fed an IDRISI image entitled
"maskmap.img" that has a "maskmap.doc" IDRISI document file as 'maskmap'
as designated in the manual is:
Warning: uncomplete idrisii header in maskmap (error: '0')
gstat: read failed on file 'maskmap'
In the IDRISI case, my .cmd file says:
data(ppts):'ppts.eas', x=1, y=2, v=3;
mask:       'maskmap';
output: 'pred.eas';


If fed the same image as an ArcView gridded .flt file (and associated
.hdr file) called a floatgrid in the online Gstat manual, I get the
following:
Warning: converted null-character(s) in `mask.map' to space
gstat: read failed on file `mask.map'
In the ArcView case, my .cmd file says:
data(ppts):'ppts.eas', x=1, y=2, v=3;
mask:       'mask.map';
output: 'pred.eas';

What am I doing wrong?

Peter Schlesinger

--
Peter Schlesinger
GIS & Remote Sensing Laboratory
Woods Hole Research Center
PO Box 296, 13 Church Street
Woods Hole, MA 02543
(508)540-9900, ext 118
(508)540-9700, fax
email: pschles@whrc.org
WWW: www.whrc.org