vis5d-users Mailing List for Vis5d+

  Althought I have tried, I still cant draw the other frames,
  only the first one.
   I have tried the following:

               vis5d_verylarge_mode $ctx VIS5D_ON
               vis5d_set_isosurface $ctx 0 0
               vis5d_make_isosurface $ctx 0 0 0
               vis5d_set_timestep $ctx 0
               vis5d_set_timestep $ctx 0
               vis5d_make_timestep_graphics $ctx 0
               vis5d_draw_frame 0

   It only works if I dont use very_large_mode, and if the dataset
  is smaller than my RAM.


   thanks for your help

   Jose Melo


 On Tue, 28 May 2002, Don Middleton wrote:

>  Below is an excerpt from a very-large-mode animation script for 4.3
where
> vis5d_set_timestep and vis5d_make_timestep_graphics are used to
accomplish
 what I think it is you're having trouble with.

> don
>
> proc next_frame {ctx time doit} {
>         global doSave doStereo baseName frame extName format totalFrames
> dirName
>
>         vis5d_set_timestep $ctx $time
>
> # Don't create or render the bulk of the geometry in test mode
>
>         rendermode $ctx $doit
>         if {$doit} {
>                 vis5d_make_timestep_graphics $ctx $time
>         }
>
> Subject: Bug in "vis5d_verylarge_mode" ?
>
>
> >   Hi
> >
> >   Im using the vis5D API to draw isosurfaces and colored isosurfaces,
when
> >  I use the API vis5d_set_isosurface_color_var_and_owner, Vis5D draws
all
> >  the frames, instead of drawing only the n-th frame.
> >
> >   To solve this problem I use the API "vis5d_verylarge_mode 0
VIS5D_ON"
> and
> >  it works fine, because when I call
> > vis5d_set_isosurface_color_var_and_owner
> >  it only draws the desired frame; the problem is when I want to draw
the
> >  next frame ((n+1)-th frame), it does nothing...
> >  (Vis5D thinks the values are in memory ?)
> >
> >   I also tried the API vis5d_destroy_data_context
> >   and vis5d_destroy_display_context but without sucess.
> >
> >   Does anybody have the same problem? Is this a bug, or Im using it in
the
> >   wrong way?
> >
> >
> >   Thank you very much for your attention
> >
> >   Jose Melo
> >
> >
> >
> >
> >
> >
> >
>
>

Below is an excerpt from a very-large-mode animation script for 4.3 where
vis5d_set_timestep and vis5d_make_timestep_graphics are used to accomplish
what I think it is you're having trouble with.

don

proc next_frame {ctx time doit} {
        global doSave doStereo baseName frame extName format totalFrames
dirName

        vis5d_set_timestep $ctx $time

# Don't create or render the bulk of the geometry in test mode

        rendermode $ctx $doit
        if {$doit} {
                vis5d_make_timestep_graphics $ctx $time
        }

Subject: Bug in "vis5d_verylarge_mode" ?


>   Hi
>
>   Im using the vis5D API to draw isosurfaces and colored isosurfaces, when
>  I use the API vis5d_set_isosurface_color_var_and_owner, Vis5D draws all
>  the frames, instead of drawing only the n-th frame.
>
>   To solve this problem I use the API "vis5d_verylarge_mode 0 VIS5D_ON"
and
>  it works fine, because when I call
vis5d_set_isosurface_color_var_and_owner
>  it only draws the desired frame; the problem is when I want to draw  the
>  next frame ((n+1)-th frame), it does nothing...
>  (Vis5D thinks the values are in memory ?)
>
>   I also tried the API vis5d_destroy_data_context
>   and vis5d_destroy_display_context but without sucess.
>
>   Does anybody have the same problem? Is this a bug, or Im using it in the
>   wrong way?
>
>
>   Thank you very much for your attention
>
>   Jose Melo
>
>
> >
>
>

  Hi

  Im using the vis5D API to draw isosurfaces and colored isosurfaces, when
 I use the API vis5d_set_isosurface_color_var_and_owner, Vis5D draws all
 the frames, instead of drawing only the n-th frame.

  To solve this problem I use the API "vis5d_verylarge_mode 0 VIS5D_ON" and
 it works fine, because when I call vis5d_set_isosurface_color_var_and_owner
 it only draws the desired frame; the problem is when I want to draw  the
 next frame ((n+1)-th frame), it does nothing...
 (Vis5D thinks the values are in memory ?)

  I also tried the API vis5d_destroy_data_context
  and vis5d_destroy_display_context but without sucess.

  Does anybody have the same problem? Is this a bug, or Im using it in the
  wrong way?


  Thank you very much for your attention

  Jose Melo


>

Sanjin,

Just to add:  there's a software called Ferret which can handle
unstructured grids, which can regrid for vis5d.  i.e. You can convert
unstructured grids into uniform grids directly into vis5d format from
ferret.  But this may take a bit of ferret-learning.  But the demos are
a tremendous learning tool.  You can check ferret out at the following
url:
http://ferret.wrc.noaa.gov/Ferret/Documentation/ferret_documentation.html

Cheers
-Kek

> Bill Hibbard wrote:
> 
> Hi Sanjin,
> 
> > Hi, my name is Sanjin Cevro and I'm master thesis student at
> University
> > of Oslo, Norway. I've been working with scientific visualization as
> a
> > part of my master thesis. Can anyone tell me if Vis5D can handle
> > unstructured grid.
> 
> Sorry to say it cannot. Our other visualization system,
> named VisAD and written in Java, can. However, it is more
> of an API than a end-user program. The Integrated Data
> Viewer (IDV) in Unidata's Metapps package uses VisAD to
> provide many of the abilities of Vis5D, but I am not sure
> if it includes VisAD's support for unstructured grids.
> 
> Good luck,
> Bill

Hi Sanjin,

> Hi, my name is Sanjin Cevro and I'm master thesis student at University
> of Oslo, Norway. I've been working with scientific visualization as a
> part of my master thesis. Can anyone tell me if Vis5D can handle
> unstructured grid.

Sorry to say it cannot. Our other visualization system,
named VisAD and written in Java, can. However, it is more
of an API than a end-user program. The Integrated Data
Viewer (IDV) in Unidata's Metapps package uses VisAD to
provide many of the abilities of Vis5D, but I am not sure
if it includes VisAD's support for unstructured grids.

Good luck,
Bill

Hi, my name is Sanjin Cevro and I'm master thesis student at University
of Oslo, Norway. I've been working with scientific visualization as a
part of my master thesis. Can anyone tell me if Vis5D can handle
unstructured grid.

regards Sanjin

Vis5d+ compiled nicely on our alpha OSF machine (OSF1 V5.1 1885 alpha), but we
have an intermittent bug.  When we create Vis5d data files using foo_to_v5d.c,
sometimes Vis5d+ crashes when reading the grids (seg fault).

Has anybody seen this before?  It runs fine reading data files created on
another machine (an SGI).  Could it be a LITTLE_ENDIAN problem?

Thanks in advance,
Christopher
______________________________________________________________
Christopher Moore                             tel 206.526.6779
Research Scientist, Oceanography              fax 206.526.6744
University of Washington/JISAO/NOAA-PMEL
--------------------------------------------------------------

Hi, I am using vis5d and tried to create a very simple vis5d file
with your foo_to_v5d.f program.  I filled in missing pieces about as
simply as I could.  It compiles and ran fine.  Unfortunately, when
I say vis5d outfile.v5d it returns and says:


Error: not a v5d file
Error: datafile outfile.v5d not found

any suggestions?  Thanks very much for your help.

Note: another person said to add -DLITTLE to CFLAGS since this is on
linux.  It did not help.



      program foo_to_v5d
      implicit none
      include "../src/v5df.h"
      integer iargc
c     Local vars
      integer n
      real*4 G(MAXROWS, MAXCOLUMNS, MAXLEVELS)
      character*100 outname
      integer i,j,k


      integer nr, nc, nl
      integer numtimes
      integer numvars
      character*10 varname(MAXVARS)
      integer dates(MAXTIMES)
      integer times(MAXTIMES)
      real northlat
      real latinc
      real westlon
      real loninc
      real bottomhgt
      real hgtinc


c     initialize the variables to missing values
      data nr,nc,nl / IMISSING, IMISSING, IMISSING /
      data numtimes,numvars / IMISSING, IMISSING /
      data (varname(i),i=1,MAXVARS) / MAXVARS*"          " /
      data (dates(i),i=1,MAXTIMES) / MAXTIMES*IMISSING /
      data (times(i),i=1,MAXTIMES) / MAXTIMES*IMISSING /
      data northlat, latinc / MISSING, MISSING /
      data westlon, loninc / MISSING, MISSING /
      data bottomhgt, hgtinc / MISSING, MISSING /

      outname= 'outfile.v5d'

      nr = 40
      nc = 80
      nl = 20
      numtimes = 1
      numvars = 1

       varname(1) = 'zzzz'

       dates(1) = 93001
       times(1) = 140000

      northlat  = 32.0
      latinc = 0.2
      westlon = 88.0
      loninc = 0.125
      bottomhgt = 0.0
      hgtinc = 100.0

c     Create the v5d file.
      n = v5dcreatesimple( outname, numtimes, numvars, nr, nc, nl,
     *                 varname, times, dates,
     *                 northlat, latinc, westlon, loninc,
     *                 bottomhgt, hgtinc )
      if (n .eq. 0) then
         write(*,*)'EE problem with create'
         stop
      endif
      if (n .ne. 0) then
         write(*,*)'no problem with create'
      endif

c     enter the conversion subroutine
      call convert( nr, nc, nl, numtimes, numvars, G )

c     close the v5d file and exit
      n = v5dclose()
      if (n .eq. 0) then
c        failed
         write(*,*) 'EE error on close'
         call exit(1)
      else
c        success
         call exit(0)
         write(*,*) ' closed file o.k.'
      endif

      end




c     Read 3-D grids from input file, write them to the output file.

      subroutine convert( nr, nc, nl, numtimes, numvars, G )
      implicit none
      include "../src/v5df.h"
c     Arguments
      integer nr
      integer nc
      integer nl
      integer numtimes
      integer numvars
      real*4 G(nr, nc, nl)
c     Local vars
      integer it, iv, n, valc,levc,latc,lonc


      do it=1,numtimes
         do iv=1,numvars


          do levC = 1,nl
          do latC = 1,nc
          do lonC = 1,nr
           G(lonc,latc,levc) =  6.0
          enddo
          enddo
          enddo


c           write the 3-D grid to the v5d file
            n = v5dwrite( IT, IV, G )
            if (n .eq. 0) then
c              error
               write(*,*) 'EE died on write'
               call exit(1)
               stop
            endif
         enddo
      enddo

      stop
 20   continue
      write(*,*)'EE read problem'
      stop
      end

Hi, I am using vis5d and tried to create a very simple vis5d file
with your foo_to_v5d.f program.  I filled in missing pieces about as
simply as I could.  It compiles and ran fine.  Unfortunately, when
I say vis5d outfile.v5d it returns and says:


Error: not a v5d file
Error: datafile outfile.v5d not found

any suggestions?  Thanks very much for your help.

Note one person  (because I was using Linux) suggested to add -DLITTLE
to CFLAGS in the makefile.  This did not solve the problem however.




      program foo_to_v5d
      implicit none
      include "../src/v5df.h"
      integer iargc
c     Local vars
      integer n
      real*4 G(MAXROWS, MAXCOLUMNS, MAXLEVELS)
      character*100 outname
      integer i,j,k


      integer nr, nc, nl
      integer numtimes
      integer numvars
      character*10 varname(MAXVARS)
      integer dates(MAXTIMES)
      integer times(MAXTIMES)
      real northlat
      real latinc
      real westlon
      real loninc
      real bottomhgt
      real hgtinc


c     initialize the variables to missing values
      data nr,nc,nl / IMISSING, IMISSING, IMISSING /
      data numtimes,numvars / IMISSING, IMISSING /
      data (varname(i),i=1,MAXVARS) / MAXVARS*"          " /
      data (dates(i),i=1,MAXTIMES) / MAXTIMES*IMISSING /
      data (times(i),i=1,MAXTIMES) / MAXTIMES*IMISSING /
      data northlat, latinc / MISSING, MISSING /
      data westlon, loninc / MISSING, MISSING /
      data bottomhgt, hgtinc / MISSING, MISSING /

      outname= 'outfile.v5d'

      nr = 40
      nc = 80
      nl = 20
      numtimes = 1
      numvars = 1

       varname(1) = 'zzzz'

       dates(1) = 93001
       times(1) = 140000

      northlat  = 32.0
      latinc = 0.2
      westlon = 88.0
      loninc = 0.125
      bottomhgt = 0.0
      hgtinc = 100.0

c     Create the v5d file.
      n = v5dcreatesimple( outname, numtimes, numvars, nr, nc, nl,
     *                 varname, times, dates,
     *                 northlat, latinc, westlon, loninc,
     *                 bottomhgt, hgtinc )
      if (n .eq. 0) then
         write(*,*)'EE problem with create'
         stop
      endif
      if (n .ne. 0) then
         write(*,*)'no problem with create'
      endif

c     enter the conversion subroutine
      call convert( nr, nc, nl, numtimes, numvars, G )

c     close the v5d file and exit
      n = v5dclose()
      if (n .eq. 0) then
c        failed
         write(*,*) 'EE error on close'
         call exit(1)
      else
c        success
         call exit(0)
         write(*,*) ' closed file o.k.'
      endif

      end




c     Read 3-D grids from input file, write them to the output file.

      subroutine convert( nr, nc, nl, numtimes, numvars, G )
      implicit none
      include "../src/v5df.h"
c     Arguments
      integer nr
      integer nc
      integer nl
      integer numtimes
      integer numvars
      real*4 G(nr, nc, nl)
c     Local vars
      integer it, iv, n, valc,levc,latc,lonc


      do it=1,numtimes
         do iv=1,numvars


          do levC = 1,nl
          do latC = 1,nc
          do lonC = 1,nr
           G(lonc,latc,levc) =  6.0
          enddo
          enddo
          enddo


c           write the 3-D grid to the v5d file
            n = v5dwrite( IT, IV, G )
            if (n .eq. 0) then
c              error
               write(*,*) 'EE died on write'
               call exit(1)
               stop
            endif
         enddo
      enddo

      stop
 20   continue
      write(*,*)'EE read problem'
      stop
      end

Greetings from Singapore.
I am a IT consultant helping to introduce effective learning solutions =
for schools in Singapore and has committed to Vis5D technology together =
with SGI.
I will need development, source, support and everything related to Vis5D =
technology hence will be honoured to be included in your list.

Michael Lim
T3 Networks
Margin Technology=20

Hi, Friends,
I think I encounted a problem with vis5d_save_window in tcl script. I
found when I use movie.tcl (provided in the package) to save the
visualization results as pictures, if the something like screen saver
starts before running "vis5d ... -script movie.tcl", the command
vis5d_save_window just save whatever appeared on the screen, not
neccessarily the vis5d results.

Does anyone know how to deal with this problem?

Thanks for the attention!
Yupeng Li

Hello,

I've been using vis5D for displaying the ocean modelling results. 
We are using the sigma coordiante in vertical axis. 
The sigma elvels are fixed at each computation point, but the real water depths represented by sigma levels  at varying  topography are different. 
When I put the nc file created by this sigma level on Vis5D, I assume that there should not any information on the the area shallower that the depth I designate to see. For example if I want to see the flow field at depth of 2000m, there should not any currents shallower that 2000m. On Vis5D, I still see the information at all grid points even I go down to 4000m, the dseepest point.
    I wish to see the flow data just on the area where water is filled.

  Does anyone have an idea how to deal with this problem? 

Thanks for your help, 
Cheers.

_________________________________________________________
 Chang S. Kim, Ph.D.               * email: su...@ko...       
 Korea Ocean R&D Institute        * URL: http://surfkim.kordi.re.kr 
 Digital Ocean & Virtual Environment Center. * URL: http://vrocean.kordi.re.kr
1270 Sadong Ansan 425-744 South Korea   /Voice&Fax: +82-(0)31-400-6340     
                          
                          

Hello,

I've been using vis5D for several years -- what a great program!  One 
of the projects I've started recently would be greatly helped if I 
could figure out the API.  Does anyone have a vis5D API "hello world" 
-- a simple code to show a single grid in a window?

Thanks for your help,

Jeff McAllister
Arctic Region Supercomputing Center
  

 Hi 

 Im using the vis5D API to draw isosurfaces and colored isosurfaces, when
I use the API vis5d_set_isosurface_color_var_and_owner, Vis5D draws all
the frames, instead of drawing only the n-th frame.
 
 To solve this problem I use the API "vis5d_verylarge_mode 0 VIS5D_ON" and
it works fine, because when I call vis5d_set_isosurface_color_var_and_owner 
it only draws the desired frame; the problem is when I want to draw  the
next frame ((n+1)-th frame), it does nothing... 
(Vis5D thinks the values are in memory ?)
 
 I also tried the API vis5d_destroy_data_context 
 and vis5d_destroy_display_context but without sucess.

 Does anybody have the same problem? Is this a bug, or Im using it in the
 wrong way?



 Thank you very much for your attention

 Jose Melo

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djVkIGZvcm1hdCBkYXRhLGl0IGhhcyBzb21lIHByb2JsZW06DQoNCkluIG15IGRhdGEsdGhlIG1h
cCBwcm9qZWN0aW9uIGlzIExhbWJlcnQgY29uZm9ybWFsIHByb2plY3Rpb24sc3RhbmRhcmQgbGF0
aXR1ZGUgMSBpcyA0MCBkZWdyZWUgYW5kIHN0YW5kYXJkIGxhdGl0dWRlIDIgaXMgMCBkZWdyZWUs
IGl0IGNhbm5vdCB3b3JrLHRoZSB2aXM1ZCBnaXZlIG1lIGEgZXJyb3IgdGhlbiBzdG9wIDpFUlJP
UjpzdGFuZGFyZCBsYXRpdHVkZSBtdXN0IGhhdmUgdGhlIHNhbWUgc2lnbiwNCmJ1dCB3aGVuIEkg
dXNlIHRoZSBwcm9ncmFtIHY1ZGVkaXQgdG8gZWRpdCB0aGUgc3RhbmRhcmQgbGF0aXR1ZGUgMiBm
cm9tIDAgdG8gMSx0aGUgdmlzNWQgIHdvcmtzIHdlbGwuV291bGQgeW91IGdpdmUgbWUgc29tZSBh
ZHZpY2U/DQpteSBFbWFpbDogdGlhbmZ1QGhpLmNvbS5jbg0K

Giovanni, 

You might try updating to the latest vis5d.  The save procedures have been 
rewritten since 5.1. 

Jim 

Giovanni Leoncini writes: 

> Hi all! ;) 
> 
> I'm using vis5d 5.1 on a solaris 2.8 and when I save a
> image, it always comes out in gray scale, no matter
> the format, if I'm saving from a tcl script, or if
> convert is installed or not. It also happens if I take
> a snapshot of the v5d window. Any clue? 
> 
> thanks a lot!! 
> 
> Giovanni 
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Health - your guide to health and wellness
> http://health.yahoo.com
 

Hi all! ;)

I'm using vis5d 5.1 on a solaris 2.8 and when I save a
image, it always comes out in gray scale, no matter
the format, if I'm saving from a tcl script, or if
convert is installed or not. It also happens if I take
a snapshot of the v5d window. Any clue?

thanks a lot!!

Giovanni


__________________________________________________
Do You Yahoo!?
Yahoo! Health - your guide to health and wellness
http://health.yahoo.com

 
 Hi !!

 We need to make a TCL script to calculate a VOLUME RENDERING. We don't
how to calculate it, because for isosurfaces there is a
vis5d_make_isosurface, but for VOLUME there isn't anything similiar.
 We tried to set up just the volume rendering in vis5d and then
do a 'save' and the restore tcl file has the command in it and if we run
vis5d with the volume script, it works. But when tried to calculate VOLUME
RENDERING, it appears : bad display context in vis5d_signal_redraw,
vis5d_draw_frame and vis5d_swap_frame. 

 this is the content of the volume tcl :
 
 vis5d_set_volume_and_owner $dtx $ctx 0

 Any sugestion ?

 Thanks,

  Andre Magalhaes
  Ze Pedro

 
 

Greg, 

The latest vis5d version available from http://vis5d.sf.net/ has greatly 
different memory characteristics than previous versions, I recommend you try 
it and see if it solves your problem. 

Jim 


Salottolo Greg writes: 

> Good Morning: 
> 
> Running VIS5D5.1, HP9000/C110 HP-UX 10.20. Using MBS 32 in vis5d.h get
> message at startup -- unable to allocate 26214400 bytes of memory. If use
> MBS 16 runs but can not do isosurfaces or slices. If use -mbs 0 can do
> slices but not isosurfaces. Have 128 MB on system. Just installed additional
> memory now have 512 MB. Still have same problem with not enough memory. Do I
> need to recompile VIS5D5.1 after additional memory installed? What should I
> set MBS to? How do I get VIS5D to use the installed memory? Shared memory
> facility maximum segment size problem?  Any help would be appreciated. 
> 
> Thanks  
> 
> 
> Greg 
> 
> Gregory D. Salottolo
> National Resource Specialist
> Meteorology
> National Transportation Safety Board
> 490 L'Enfant Plaza  East, SW
> Washington D.C. 20594-0003
> Work 202.314.6338
> Fax 202.314.6339
> e-mail sa...@nt... 
> 
> 
 

Good Morning:

Running VIS5D5.1, HP9000/C110 HP-UX 10.20. Using MBS 32 in vis5d.h get
message at startup -- unable to allocate 26214400 bytes of memory. If use
MBS 16 runs but can not do isosurfaces or slices. If use -mbs 0 can do
slices but not isosurfaces. Have 128 MB on system. Just installed additional
memory now have 512 MB. Still have same problem with not enough memory. Do I
need to recompile VIS5D5.1 after additional memory installed? What should I
set MBS to? How do I get VIS5D to use the installed memory? Shared memory
facility maximum segment size problem?  Any help would be appreciated.

Thanks 


Greg

Gregory D. Salottolo
National Resource Specialist
Meteorology
National Transportation Safety Board
490 L'Enfant Plaza  East, SW
Washington D.C. 20594-0003
Work 202.314.6338
Fax 202.314.6339
e-mail sa...@nt...

You should look at the Vis5d manual, which was converted to HTML (and
other formats, via DocBook) and placed online as part of the Vis5d+
project.  In particular, for vector plots, see:

	http://vis5d.sourceforge.net/doc/ch06sec9.html

Cordially,
Steven G. Johnson

On Wed, 1 May 2002, Siew Ching Tan wrote:
> Now, I wish to display a velocity vector as a arrow as shown in the figure
> in the following
> URL: http://www.ssec.wisc.edu/~billh/florida.gif
> 
> [...]
> 
> It would be good if vis5d can be more informative as the tutorial
> given in the vis5d homepage is not detail enough to teach me how to
> display thing in a "nice" & "proper" way. Can you direct me to some
> example code or website for more details?

Hi,

I am really new to vis5d. Currently I am trying to convert my own data into
vis5d data format and everything seems to work fine.
Now, I wish to display a velocity vector as a arrow as shown in the figure
in the following
URL: http://www.ssec.wisc.edu/~billh/florida.gif

However, I am not sure of how to implement it using vis5d. Is it possible
for you to provide some useful pointers for me?
 
It would be good if vis5d can be more informative as the tutorial given in
the vis5d homepage is not detail enough
to teach me how to display thing in a "nice" & "proper" way. Can you direct
me to some example code or website
for more details?

Thanks in advance!

Cheers,
Siew