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12 Jun 2024 17:25:38 EDT (-0400)
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From: jr
Subject: df3 tools
Date: 9 Jul 2018 18:00:01
Message: <web.5b43d8aa43fdfea9635cc5ad0@news.povray.org>
hi,

announcing version 0.4.0 of the 'df3 tools'for working with DF3 files,
consisting of a C language library, a "Swiss army knife" type utility, and a
database virtual table extension.

since the previous release, the library has gained two functions to make working
with 16-bit and 32-bit DF3s easier, and lost one bug -- file modification times
had not been recorded.

the utility program has a new command, list, to dump selected DF3 contents to
stdout, in a number of formats including one that's template-based, user
defined.  the importing of .png data has been improved to allow the processing
of colour images.

the Sqlite3 virtual table extension now provides an "introspection" SQL function
which reports details of the underlying DF3 file(s).

the software should build without warnings or errors on any POSIX-ish 64-bit os,
any existing installation of the 'df3 tools' must be uninstalled first.

the files are available for download via these links:

the library, needs to be installed first:

https://drive.google.com/file/d/1uPn5qxeVSvhbNnwkdLkQuR1qa5fBEwoX/view?usp=sharing

the utility:

https://drive.google.com/file/d/1SLkPuXoBiYvAMt8i89m7V5gVTUMfpTHU/view?usp=sharing

and the SQlite3 extension:

https://drive.google.com/file/d/17PA14CISXFqRKYOcpSY_Ubw08dWIMy--/view?usp=sharing

as always, hints, tips, and constructive criticisms welcome.

enjoy, jr.


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From: jr
Subject: Re: df3 tools
Date: 10 Jul 2018 11:25:00
Message: <web.5b44cea4f63f25ef635cc5ad0@news.povray.org>
a tiny Tcl script to calculate the average density of a given DF3 file,
quickly written to demonstrate .. fringe benefits.  :-)

assumes 'spiral.df3' (from the POV-Ray sources) in the current working directory
(or a link).

jr@crow:1:demo$ c### [at] voxavgtcl
# voxavg.tcl - average density of DF3.

set n  0
set t 0

foreach {x y z v} [read stdin] {
  incr n
  incr t $v
}

set avg [expr {($t + 0.0) / $n}]

puts [format {read %d voxels, total %d, average density %g.} $n $t $avg]


jr@crow:2:demo$ df3util -o tcl list spiral . . | tclsh voxavg.tcl
read 12500 voxels, total 171009, average density 13.6807.



enjoy, jr.


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From: ingo
Subject: Re: df3 tools
Date: 20 Dec 2018 11:02:39
Message: <XnsA9BEAD62BA83Fseed7@news.povray.org>
in news:web.5b43d8aa43fdfea9635cc5ad0@news.povray.org jr wrote:

> and the SQlite3 extension

Nice. I once tried to stash a big df3 in an R-tree module table. Sqlite 
didn't realy like it :)

ingo


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From: jr
Subject: Re: df3 tools
Date: 20 Dec 2018 16:50:01
Message: <web.5c1c0d73f63f25ef48892b50@news.povray.org>
hi,

ingo <ing### [at] tagpovrayorg> wrote:
> in news:web.5b43d8aa43fdfea9635cc5ad0@news.povray.org jr wrote:
> > and the SQlite3 extension
>
> Nice. I once tried to stash a big df3 in an R-tree module table. Sqlite
> didn't realy like it :)

tsk, tsk.  :-)

thank you for trying it.  let me know if you encounter problems.


regards, jr.


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From: yesbird
Subject: Re: df3 tools
Date: 14 Apr 2024 08:20:25
Message: <e337bafb-fcda-42da-a76d-0888c806adcc@gmail.com>
On 10/07/2018 00:55, jr wrote:
> hi,
> 
> announcing version 0.4.0 of the 'df3 tools'for working with DF3 files,
> consisting of a C language library, a "Swiss army knife" type utility, and a
> database virtual table extension.

Hi, jr !
Thank you very much for sharing this great toolset and library, I have 
built them successfully and now plan to use in my new volume 
visualization project. The goal is to create an online visualization 
tool of medical data in DICOM format, common voxelized data in OpenVSD 
format, and show results in WebXR as stereopair.

The server-side rendering is doing by HgPovray38 - there is a pilot 
version of this system that can be used as a sketchbook for experiments: 
https://povlab.online/?scene=vol_3_slice.pov

As for WebXR, I already have an online gallery of stereo images rendered 
with HgPovray that can be viewed in any VR headset. I will share the 
link to it in a few days with more details in a separate post after some 
cleanup.

The most important part of the project now is importing data from DICOM 
and OpenVSD.
For DICOM I am looking at https://dicom.offis.de/dcmtk.php.en.
OpenVSD, have an universal tool that, I believe, can be extended to 
export df3 without serious effort: 
https://dirsig.cis.rit.edu/docs/new/vdb_tool.html

If you are still interested in df3 volumes, I will be glad to hear any 
suggestions, thoughts, criticisms from you. And if you would like to 
join this project somehow - you are welcome !
--
YB


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From: yesbird
Subject: Re: df3 tools
Date: 14 Apr 2024 08:25:32
Message: <f6caea46-6ee6-47e2-8aef-315c88430797@gmail.com>
On 10/07/2018 00:55, jr wrote:
> hi,
> 
> announcing version 0.4.0 of the 'df3 tools'for working with DF3 files,
> consisting of a C language library, a "Swiss army knife" type utility, and a
> database virtual table extension.
--

Hi, jr !
Thank you very much for sharing this great toolset and library, I have
built them successfully and now plan to use in my new volume
visualization project. The goal is to create an online visualization
tool of medical data in DICOM format, common voxelized data in OpenVSD
format, and show results in WebXR as stereopair.

The server-side rendering is doing by HgPovray38 - there is a pilot
version of this system that can be used as a sketchbook for experiments:
https://povlab.online/?scene=vol_3_slice.pov

As for WebXR, I already have an online gallery of stereo images rendered
with HgPovray that can be viewed in any VR headset. I will share the
link to it in a few days with more details in a separate post after some
cleanup.

The most important part of the project now is importing data from DICOM 
and OpenVSD.
For DICOM I am looking at https://dicom.offis.de/dcmtk.php.en.
OpenVSD, have an universal tool that, I believe, can be extended to
export df3 without serious effort: 
https://dirsig.cis.rit.edu/docs/new/vdb_tool.html

If you are still interested in df3 volumes, I will be glad to hear any
suggestions, thoughts, criticisms from you. And if you would like to
join this project somehow - you are welcome !
--
YB


Post a reply to this message

From: yesbird
Subject: Re: df3 tools
Date: 14 Apr 2024 08:31:05
Message: <a4b5cb43-b106-432b-b719-7eebb4501cd1@gmail.com>
On 10/07/2018 00:55, jr wrote:
> hi,
> 
> announcing version 0.4.0 of the 'df3 tools'for working with DF3 files,
> consisting of a C language library, a "Swiss army knife" type utility, and a
> database virtual table extension.
--

Hi, jr !
Thank you very much for sharing this great toolset and library, I have
built them successfully and now plan to use in my new volume
visualization project. The goal is to create an online visualization
tool of medical data in DICOM format, common voxelized data in OpenVSD
format, and show results in WebXR as stereopair.

The server-side rendering is doing by HgPovray38 - there is a pilot
version of this system that can be used as a sketchbook for experiments:
https://povlab.online/?scene=vol_3_slice.pov

As for WebXR, I already have an online gallery of stereo images rendered
with HgPovray that can be viewed in any VR headset. I will share the
link to it in a few days with more details in a separate post after some
cleanup.

The most important part of the project now is importing data from DICOM 
and OpenVSD.
For DICOM I am looking at https://dicom.offis.de/dcmtk.php.en.
OpenVSD, have an universal tool that, I believe, can be extended to
export df3 without serious effort:
https://github.com/AcademySoftwareFoundation/openvdb/tree/master/openvdb_cmd/vdb_tool

If you are still interested in df3 volumes, I will be glad to hear any
suggestions, thoughts, criticisms from you. And if you would like to
join this project somehow - you are welcome !
--
YB


Post a reply to this message

From: yesbird
Subject: Re: df3 tools
Date: 14 Apr 2024 08:36:01
Message: <fac24044-4877-49dd-a521-7e62b7d38081@gmail.com>
On 10/07/2018 00:55, jr wrote:
> hi,
> 
> announcing version 0.4.0 of the 'df3 tools'for working with DF3 files,
> consisting of a C language library, a "Swiss army knife" type utility, and a
> database virtual table extension.
--
Hi, jr !
Thank you very much for sharing this great toolset and library, I have
built them successfully and now plan to use in my new volume
visualization project. The goal is to create an online visualization
tool of medical data in DICOM format, common voxelized data in OpenVDB
format, and show results in WebXR as stereopair.

The server-side rendering is doing by HgPovray38 - there is a pilot
version of this system that can be used as a sketchbook for experiments:
https://povlab.online/?scene=vol_3_slice.pov

As for WebXR, I already have an online gallery of stereo images rendered
with HgPovray that can be viewed in any VR headset. I will share the
link to it in a few days with more details in a separate post after some
cleanup.

The most important part of the project now is importing data from DICOM
and OpenVDB.
For DICOM I am looking at https://dicom.offis.de/dcmtk.php.en.
OpenVDB have an universal tool that, I believe, can be extended to
export df3 without serious effort: 
https://dirsig.cis.rit.edu/docs/new/vdb_tool.html

If you are still interested in df3 volumes, I will be glad to hear any
suggestions, thoughts, criticisms from you. And if you would like to
join this project somehow - you are welcome !
--
YB


Post a reply to this message

From: yesbird
Subject: Re: df3 tools
Date: 14 Apr 2024 08:38:18
Message: <db25f864-176b-4d02-847d-06c4cd9cfc64@gmail.com>
On 10/07/2018 00:55, jr wrote:
> hi,
> 
> announcing version 0.4.0 of the 'df3 tools'for working with DF3 files,
> consisting of a C language library, a "Swiss army knife" type utility, and a
> database virtual table extension.
--

Hi, jr !
Thank you very much for sharing this great toolset and library, I have
built them successfully and now plan to use in my new volume
visualization project. The goal is to create an online visualization
tool of medical data in DICOM format, common voxelized data in OpenVDB
format, and show results in WebXR as stereopair.

The server-side rendering is doing by HgPovray38 - there is a pilot
version of this system that can be used as a sketchbook for experiments:
https://povlab.online/?scene=vol_3_slice.pov

As for WebXR, I already have an online gallery of stereo images rendered
with HgPovray that can be viewed in any VR headset. I will share the
link to it in a few days with more details in a separate post after some
cleanup.

The most important part of the project now is importing data from DICOM
and OpenVDB.
For DICOM I am looking at https://dicom.offis.de/dcmtk.php.en.
OpenVDB have an universal tool that, I believe, can be extended to
export df3 without serious effort:
https://github.com/AcademySoftwareFoundation/openvdb/tree/master/openvdb_cmd/vdb_tool

If you are still interested in df3 volumes, I will be glad to hear any
suggestions, thoughts, criticisms from you. And if you would like to
join this project somehow - you are welcome !
--
YB


Post a reply to this message

From: jr
Subject: Re: df3 tools
Date: 14 Apr 2024 16:05:00
Message: <web.661c35f4f63f25ef1686e436cde94f1@news.povray.org>
hi,

yesbird <sya### [at] gmailcom> wrote:
> On 10/07/2018 00:55, jr wrote:
> > announcing version 0.4.0 of the 'df3 tools'for working with DF3 files,
> Thank you very much for sharing this great toolset and library, I have
> built them successfully and now plan to use in my new volume
> visualization project. The goal is to create an online visualization
> tool of medical data in DICOM format, common voxelized data in OpenVDB
> format, and show results in WebXR as stereopair.

it is a strange world we live in :-).  yesterday, early afternoon, true story, I
started to think about a successor to the 'df3 tools' (incl taking notes), the
first time in months!  (you must have been thinking very loudly </grin>)

only had a very brief look at the povlab.online, cool idea.

as I've received this post as an email too, I'll reply to that, in the coming
days.  cheers.


regards, jr.


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