ALTEK DIGITIZER DRIVER

Hi there,

  I am wondering if anyone use ALTEK DIGITIZER with AC31 controller on
GRASS4.1. I got the problem to let this beast communicate well with v.digit.
Each time when I invoke v.digit, choose Altek as the digitizer, give a test
file name for digitizing, I will get the registration point entry screen with
no problem. However, after I typed in 4 points for later registration and hit
ESC key, I will get the screen of POINTS TO REGISTER, and in the lower part of
this screen I got an error message

  "Digitizer read error. Do we continue(y,n)?"

  I checked the hardware connection and it's okay. The configuration
file under $GISBASE/etc/digitizers that I used is al30f8_16. I talked with
Altek technical support people and seems they no nothing about GRASS. All
they can tell me is that the default digitizer controller switch setting
they configued for my digitizer is used to be worked for GRASS. They even
don't know their product used to work with which version of GRASS. This
put me in a difficult possition. Does any can help?

         Thank you in advance.

        PK Lin
        E-mail: pklin@cerf.net
        Tel:(617)942-1655

In article <199402022132.NAA13465@nic.cerf.net> you write:

Hi there,

I am wondering if anyone use ALTEK DIGITIZER with AC31 controller on
GRASS4.1. I got the problem to let this beast communicate well with v.digit.
I checked the hardware connection and it's okay. The configuration
file under $GISBASE/etc/digitizers that I used is al30f8_16. I talked with

        Thank you in advance.

      PK Lin
      E-mail: pklin@cerf.net
      Tel:(617)942-1655

PK -- We have the same setup, running GRASS4.1 on a SPARCclassic with
Solaris 2.2: and no v.digit. We have had to keep an old workstation
(SUN 386i) active runnig GRASS4.0 & SunOS 4.0.2 in order to run the
digitizer. This subject was brought up before on the lists, but never
resolved. I'm not sure if it is a SOLARIS 2.x problem or a GRASS 4.1
problem.

v.digit runs like a DOG in "no digitizer" mode, something to do with
the fifo's and SOLARIS, I've been told. Does your v.digit run without
the digitizer?

Also, I think v.digit was changed in GRASS4.1, and there is a "v.digit2" or
"v.digit.old" code around which is the GRASS4.0 v.digit -- can anyone
shed some light on this? Has ANYONE got an ALTEK AC31 running WELL on
GRASS4.1?

Ronald Thomas ront@meeker.cfnr.colostate.edu
Natural Resource Spec. (GIS) ^^^ Phone: 303-586-3565 x285
  Resources Management Division ^^ ^^^^^ FAX: 303-586-4702
   Rocky Mountain National Park ^^^ ^^^^^^^ Estes Park, CO 80517
    
("Damn it Jim, I'm a GIS Specialist, not computer hacker -- just give me a
tool that work!!" "Sorry, Bones, Star Fleet is cheap, deal with it.")

Ronald Thomas (ront@niwot.CFNR.ColoState.EDU) writes on 3 Feb 94:

PK -- We have the same setup, running GRASS4.1 on a SPARCclassic with
Solaris 2.2: and no v.digit. We have had to keep an old workstation
(SUN 386i) active runnig GRASS4.0 & SunOS 4.0.2 in order to run the
digitizer. This subject was brought up before on the lists, but never
resolved. I'm not sure if it is a SOLARIS 2.x problem or a GRASS 4.1
problem.

v.digit runs like a DOG in "no digitizer" mode, something to do with
the fifo's and SOLARIS, I've been told. Does your v.digit run without

it's dogish even when using a digitizer because it still communicates
with the display. We don't have an ALTEK but a CALCOMP, and the new
v.digit works well with this under 4.1.x (not 2.x). These seems to
indicate that the problem may be with Solaris and/or the something
specific to the altek. We just recently moved everything to 2.3, but I
haven't had a chance to try it yet.

The "puck must be on the pad" problem has/had to do with the way
that the software are designed. I thought that this was fixed, but
maybe not.

Another possible reason for v.digit problems that I gathered from sun
gurus was that the serial port interface was supposedly changed on
newer machines. I can't confirm or deny that this is the problem (I
lean towards the latter), but only offer it as another possibility.

Also, I think v.digit was changed in GRASS4.1, and there is a "v.digit2" or
"v.digit.old" code around which is the GRASS4.0 v.digit -- can anyone
shed some light on this? Has ANYONE got an ALTEK AC31 running WELL on

you're correct. The old v.digit is not v.digit2. As I recall,
instructions for using the older one are at the end of the installation
guide.

--Darrell