[GRASS5] Strange behaviour in d.zoom

Hello all

Here's a real strange one. I once ran d.zoom and received a usage
message that said a raster map was required. Unfortunately, I have not
been able to reproduce it, d.zoom has worked as usual ever since. Not
only do I not know how this happened, but it shouldn't require a raster
map since a user may not be viewing any raster files, only vector or
site files.

Has anyone else experienced this? I have no idea what happened or if
there is anything that can be done. Any ideas would be greatly
appreciated.

--
Sincerely,

Jazzman (a.k.a. Justin Hickey) e-mail: jhickey@hpcc.nectec.or.th
High Performance Computing Center
National Electronics and Computer Technology Center (NECTEC)
Bangkok, Thailand

People who think they know everything are very irritating to those
of us who do. ---Anonymous

Jazz and Trek Rule!!!

Justin Hickey wrote:

Hello all

Here's a real strange one. I once ran d.zoom and received a usage
message that said a raster map was required. Unfortunately, I have not
been able to reproduce it, d.zoom has worked as usual ever since. Not
only do I not know how this happened, but it shouldn't require a raster
map since a user may not be viewing any raster files, only vector or
site files.

Has anyone else experienced this? I have no idea what happened or if
there is anything that can be done. Any ideas would be greatly
appreciated.

--
Sincerely,

Jazzman (a.k.a. Justin Hickey) e-mail: jhickey@hpcc.nectec.or.th
High Performance Computing Center
National Electronics and Computer Technology Center (NECTEC)
Bangkok, Thailand

People who think they know everything are very irritating to those
of us who do. ---Anonymous

Jazz and Trek Rule!!!

Justin,

I believe d.zoom requires a map object drawn in the monitor. For example
if you execute d.erase followed by d.zoom you should see the message you
report above.

--
Bob Covill

Tekmap Consulting
P.O. Box 2016 Fall River, N.S.
B2T 1K6
Canada

E-Mail: bcovill@tekmap.ns.ca
Phone: 902-860-1496
Fax: 902-860-1498

Hi Bob

Bob Covill wrote:

Justin Hickey wrote:
> Here's a real strange one. I once ran d.zoom and received a usage
> message that said a raster map was required. Unfortunately, I have
> not been able to reproduce it, d.zoom has worked as usual ever
> since. Not only do I not know how this happened, but it shouldn't
> require a raster map since a user may not be viewing any raster
> files, only vector or site files.
>
> Has anyone else experienced this? I have no idea what happened or
> if there is anything that can be done. Any ideas would be greatly
> appreciated.

I believe d.zoom requires a map object drawn in the monitor. For
example if you execute d.erase followed by d.zoom you should see the
message you report above.

Nope, there was a map being displayed ayt the time. Thanks anyway.

--
Sincerely,

Jazzman (a.k.a. Justin Hickey) e-mail: jhickey@hpcc.nectec.or.th
High Performance Computing Center
National Electronics and Computer Technology Center (NECTEC)
Bangkok, Thailand

People who think they know everything are very irritating to those
of us who do. ---Anonymous

Jazz and Trek Rule!!!