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? Data Visualization

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Nguyen Vinh
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Joined: 2006-02-14

Hi, everybody
This is the first time I've researched about "Data Visualization".
The're many documentations in the internet, but I saw that's too much tools to do with this technology.
I'm wondering: what is the best tool (give me an advice)
thanks so much

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Vinh Nguyen
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Joined: 2006-02-14

send my thanks to Don Casteel, I visited your page and I like it,
to Bill Hibbard for your suggestion about VisAD
and to Silvère Martin-Michiellot.
I've had good advices from U.
I'll do my best to research my project. Nice to have your help in the future!

Bill Hibbard

Hi Nguyen,

As Don says, there is no one best tool since user
needs are so varied. Our VisAD system is open source
and provides lots of capabilities, including reading
many scientific file formats, collaborative
visualization, and support for user interactions.
It is primarily a class library, meaning that users
write their own main programs (but there is an excellent
on-line tutorial written by Ugo Taddei). It does also
provide a visualization spread sheet for users who don't
want to program, but almost all users end up customizing
by writing their own programs. For more information, see:

http://www.ssec.wisc.edu/~billh/visad.html

Good luck,
Bill Hibbard

On Sun, 15 Jan 2006 java3d-interest@javadesktop.org wrote:

> Hi, everybody
> This is the first time I've researched about "Data Visualization".
> The're many documentations in the internet, but I saw that's too much tools to do with this technology.
> I'm wondering: what is the best tool (give me an advice)
> thanks so much
> ---
> [Message sent by forum member 'Nguyen Vinh' (myDreams)]
>
> http://www.javadesktop.org/forums/thread.jspa?messageID=137498&#137498
>
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> To unsubscribe, e-mail: interest-unsubscribe@java3d.dev.java.net
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>
>

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Don Casteel

Bill,

Sounds great, how come no image gallery though?
I didn't see anything obvious on the homepage anyway.

I will be checking it out regardless, but thought it would be a good idea for you to show what your tools are capable of. Even one outstanding image on the main page would be good enough. Otherwise, like me, people will not know if it's something they can use at all.

Just a suggestion.

Don

Bill Hibbard wrote:
Hi Nguyen,

As Don says, there is no one best tool since user
needs are so varied. Our VisAD system is open source
and provides lots of capabilities, including reading
many scientific file formats, collaborative
visualization, and support for user interactions.
It is primarily a class library, meaning that users
write their own main programs (but there is an excellent
on-line tutorial written by Ugo Taddei). It does also
provide a visualization spread sheet for users who don't
want to program, but almost all users end up customizing
by writing their own programs. For more information, see:

http://www.ssec.wisc.edu/~billh/visad.html

Good luck,
Bill Hibbard

On Sun, 15 Jan 2006 java3d-interest@javadesktop.org wrote:

> Hi, everybody
> This is the first time I've researched about "Data Visualization".
> The're many documentations in the internet, but I saw that's too much tools to do with this technology.
> I'm wondering: what is the best tool (give me an advice)
> thanks so much
> ---
> [Message sent by forum member 'Nguyen Vinh' (myDreams)]
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: interest-unsubscribe@java3d.dev.java.net
> For additional commands, e-mail: interest-help@java3d.dev.java.net
>
>

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Donald Casteel

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Bill Hibbard

Hi Don,

>
> Sounds great, how come no image gallery though?
> I didn't see anything obvious on the homepage anyway.
>
> I will be checking it out regardless, but thought it would be a good idea for you to show what your tools are capable of. Even one outstanding image on the main page would be good enough. Otherwise, like me, people will not know if it's something they can use at all.

Excellent question.

The intro and documentation sections of the VisAD home
page both recommend Ugo's tutorial as the way to learn
about the system, and the tutorial is full of sample
images and the code to produce them. Also, the
bibliography section includes links to papers with
images.

With the earlier Vis5D system we did provide some images
right on the home page, but VisAD is more about the
programs that users can write than the images they can
produce. Like Java3D, VisAD is so general that it can
literally produce any conceivable image, depending on
how the user programs it. Rather than just a toolkit for
producing images, VisAD is also a toolkit for creating
ways to interact with images. The article at:

http://www.ssec.wisc.edu/~billh/VisGUI.html

explains this.

Cheers,
Bill

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Silvère Martin-Michiellot

Hi,

JScience (www.jscience.org) has also several stuff similar to Visad
(data visualisation in 3D is less pretty) underway (if you can wait a
couple of months).

Cheers,

Silvere.

Bill Hibbard wrote:

>Hi Don,
>
>
>
>> Sounds great, how come no image gallery though?
>> I didn't see anything obvious on the homepage anyway.
>>
>> I will be checking it out regardless, but thought it would be a good idea for you to show what your tools are capable of. Even one outstanding image on the main page would be good enough. Otherwise, like me, people will not know if it's something they can use at all.
>>
>>
>
>Excellent question.
>
>The intro and documentation sections of the VisAD home
>page both recommend Ugo's tutorial as the way to learn
>about the system, and the tutorial is full of sample
>images and the code to produce them. Also, the
>bibliography section includes links to papers with
>images.
>
>With the earlier Vis5D system we did provide some images
>right on the home page, but VisAD is more about the
>programs that users can write than the images they can
>produce. Like Java3D, VisAD is so general that it can
>literally produce any conceivable image, depending on
>how the user programs it. Rather than just a toolkit for
>producing images, VisAD is also a toolkit for creating
>ways to interact with images. The article at:
>
> http://www.ssec.wisc.edu/~billh/VisGUI.html
>
>explains this.
>
>Cheers,
>Bill
>
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>To unsubscribe, e-mail: interest-unsubscribe@java3d.dev.java.net
>For additional commands, e-mail: interest-help@java3d.dev.java.net
>
>
>
>
>

--

__________________________________________________________________________________________

Silvere Martin-Michiellot

You will find my latest opensource contribution on www.jscience.org
__________________________________________________________________________________________

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Don Casteel

Nguyen,

This is a great question, however I don't think there's an answer out there for you.
What is going to work best for you will depend greatly on exactly what you are trying to do. Without knowing what kind of data you're working with, and what you want to visualize from it, it will be most dificult to help you.

I've been working on a 3D IFS fractal renderer for some time now. I highly reccomend VTK but there's no real help or support out there for it, so plan on spending a lot of time trying to learn. Even the mailing list is not very helpful. I was never able to get it to work under Java, so I'm exporting my data and reading it into VTK running under Tcl.

I'm actualy having beter results with pure J3d.

I'm generating a point array with a scalar for density, and another for color, density is mapped to transparency, and color scalar is mapped to a color gradient (Fractint .map files).

Here are some of the results:

http://www.deviantart.com/view/27646633/
http://www.deviantart.com/view/27628447/
http://www.deviantart.com/view/27525558/

I was using VTK to generate an Isosurf then rendering that in Alias Maya, cool images, but not the detail I wanted, here's an example, (VTK for geometry, Maya for color/texture/lighting):

http://www.deviantart.com/view/25963367/

Best Wishes
Don

java3d-interest@javadesktop.org wrote:
Hi, everybody
This is the first time I've researched about "Data Visualization".
The're many documentations in the internet, but I saw that's too much tools to do with this technology.
I'm wondering: what is the best tool (give me an advice)
thanks so much
---
[Message sent by forum member 'Nguyen Vinh' (myDreams)]

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Donald Casteel

My DeviantArt Gallery
My DeviantArt Home
Apophysis on DeviantArt

---------------------------------
Yahoo! Photos
Ring in the New Year with Photo Calendars. Add photos, events, holidays, whatever.
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