[Radiance-general] HDR & Isocontour help.

[Gregory J. Ward]

Hi Matt,

The falsecolor command will create iso lines using the -cl or -cb  
options.  Try the following sequence:

% rpict -x 512 -y 512 [view and other options] input.oct > rendering.pic
% rpict -i -x 512 -y 512 [same options] intput.oct > luximage.pic
% falsecolor -cl -s 1000 -i luximage.pic -p rendering.pic | ra_tiff -  
contours.tif

You'll need to play with the falsecolor options to get it like you  
want.  See <http://radsite.lbl.gov/radiance/man_html/falsecolor. 
1.html> for details.

-Greg

> From: Matt Parker <maparker at email.uncc.edu>
> Date: July 25, 2006 10:36:48 PM PDT
>
> Hello.
>
> I am a Macintosh tech at a university. I am helping users that were  
> using a
> Windows application that was broken as a result of system updates.  
> The only
> thing the users do is shoot a series of pictures, then create a HDR  
> file.
> From that HDR file, we want a false color image and an Isocontour  
> image. I
> am in the process of setting up a series of scripts for them on OS  
> X. I can
> create the false color image without a problem. However, I am having
> problems with the Isocontour image.
>
> What are the series of commands that I need to use to create the  
> Iso from
> the HDR? I know that I need to create an Illumination file and then
> composite that file with the original HDR. How do I do this? I am  
> guessing
> it will be 2 different terminal commands.
>
> Any help will be greatly appreciated. I am sorry if this is a simple
> problem, I am not a Radiance user so a lot of stuff is greek to me.
>
> Thanks in advance,
>
> Matt Parker
> Lab Manager
> UNC Charlotte
> College of Architecture