[Radiance-general] how to pipe the output of pcompos as input for pflip

[Ji Zhang]

Dear Greg, thank you very much!

I've got the C file you sent. However, I have no experience in C
programming. So, can you kindly advise me how should I "compile" or "do
with" it?

What I want to do is to get a falsecolor sky radiance fisheye image and map
it back to a virtual sky dome. See the link below:
http://diva4rhino.com/forum/topics/gendaylit-in-diva-2-0-seriously-underesitmates-total-irradiation

Since the falsecolor image I generated from falsecolor2.exe is one with
East and West switched, I need to crop it to get ride of the color legend
and flip horizontally it so that East and West are correctly visualized.

Thanks again!

- Ji



On Fri, May 18, 2012 at 2:03 AM, Greg Ward <gregoryjward at gmail.com> wrote:

> You should get a usage error.  The 4.1 version of pflip needs the input
> file on the command line, so it can seek on it for the -v option.  While
> technically not necessary for the -h option by itself, this is how I wrote
> it figuring it was not worth the effort for the corner case of someone
> wanting on pflip -h to read from stdin.
>
> I have modified the code and uploaded a new version that works in your
> scenario.  I will e-mail you the C file separately.
>
> Cheers,
> -Greg
>
>
> > From: Ji Zhang <hope.zh at gmail.com>
> > Date: May 17, 2012 9:33:44 AM PDT
> >
> > Dear list,
> >
> > I can use two separate commands to crop and flip an .hdr image:
> >
> > pcompos -x 800 -y 800 ./sky.hdr -100 0 > ./sky_clipped.hdr
> > pflip -h ./sky_clipped.hdr > ./sky_flipped.hdr
> >
> >
> > However, I don't seem to be able to "pipe" the output of pcompos as
> input for pflip using the following script:
> > pcompos -x 800 -y 800 ./sky.hdr -100 0 | pflip -h > ./sky_flipped.hdr
> >
> > I'm sure I missed something here, so please kindly advise!
> >
> > Thanks a lot!
> >
> > - Ji
>
> _______________________________________________
> Radiance-general mailing list
> Radiance-general at radiance-online.org
> http://www.radiance-online.org/mailman/listinfo/radiance-general
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.radiance-online.org/pipermail/radiance-general/attachments/20120518/d8934220/attachment.html>