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3d histograms [message #3658]

Tue, 07 March 1995 09:03

aaron
Messages: 1
Registered: March 1995

Junior Member

I am trying to use PV-Wave to display a discrete data of x,y,z form.
Because it is discrete neither surface nor shade_surf are appropriate
but I can find no way to easily produce a 3d histogram and would like
to avoid writing the code to produce one if it has already been done.
Is a PV-WAVE program available to produce 3d shaded histograms from ftp?

Thanks

+----------------------------------------------------------- -----------------+
| Aaron Turner | Advanced Computer Architecture Group |
| aaron@minster.york.ac.uk | University of York |
+----------------------------------------------------------- -----------------+

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Re: 3d histograms [message #3797 is a reply to message #3658]

Wed, 08 March 1995 05:32

knipp
Messages: 68
Registered: January 1993

Member

In article 21213@leeds.ac.uk, aaron@p9news.leeds.ac.uk (Aaron Turner) writes:
> I am trying to use PV-Wave to display a discrete data of x,y,z form.
> Because it is discrete neither surface nor shade_surf are appropriate
> but I can find no way to easily produce a 3d histogram and would like
> to avoid writing the code to produce one if it has already been done.
> Is a PV-WAVE program available to produce 3d shaded histograms from ftp?
>
> Thanks
>
> +----------------------------------------------------------- -----------------+
> | Aaron Turner | Advanced Computer Architecture Group |
> | aaron@minster.york.ac.uk | University of York |
> +----------------------------------------------------------- -----------------+
>

To my understanding (I'm using IDL) there exists a routine in Wave called
PLOT3D.

Look at it; maybe you can need it or at least get the idea how to solve
your problem.

Karl

____________________________________________________________ __________________
__ ____ __
/ // _ \ / / Karlheinz Knipp phone: +49 511 - 762 4922
/ // /_/ // / University of Hannover fax: +49 511 - 762 2483
/ // ____// / Institute for Photogrammetry
/ // / / / Nienburger Str.1
/_//_/ /_/ FRG 30167 Hannover e-mail: knipp@ipi.uni-hannover.de

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Re: d histograms [message #3815 is a reply to message #3658]

Sat, 18 March 1995 10:45

velt
Messages: 19
Registered: June 1994

Junior Member

In article <1995Mar7.170351.21213@leeds.ac.uk>, aaron@p9news.leeds.ac.uk (Aaron Turner) writes:
> I am trying to use PV-Wave to display a discrete data of x,y,z form.
> Because it is discrete neither surface nor shade_surf are appropriate
> but I can find no way to easily produce a 3d histogram and would like
> to avoid writing the code to produce one if it has already been done.
> Is a PV-WAVE program available to produce 3d shaded histograms from ftp?

I don't know about PV-Wave, but in IDL there is a users-library function
called LEGO. It's pretty old (1991), so it may also be available in
PV-Wave.

Robert Velthuizen (velt@rad.usf.edu),
Digital Medical Imaging Program of the
H. Lee Moffitt Cancer Center and Research Institute at the
University of South Florida, Tampa FL 33612.

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