[Radiance-general] Re: falsecolor and textlabels question

[Pierre-Felix Breton]

 Hi Greg,

Now that I relook this ,I think I did not expressed myself correctly:

I am using the -e switch of the falsecolor utility. The text labels overlaid
on the drawing (extrema points) are really useful for me.  I would like to
add more of theses labels though and wonder if it is possible somehow

Regards,

Pierre-Felix
Note:  I must say that I don't generate the irradiance data out of radiance.
I use mental ray that saves a pic file with the data I want so I am
essentially looking for 2d tools.


----- Original Message -----
From: "Greg Ward" <gward at lmi.net>
To: "Radiance general discussion" <radiance-general at radiance-online.org>
Cc: "Pierre-Felix Breton" <mail_lists at pfbreton.com>
Sent: Wednesday, March 17, 2004 11:07 AM
Subject: Re: falsecolor and textlabels question


Hi Pierre-Felix,

On X11 displays that support 8-bit color lookup mode, you can use the
-b option of ximage and the 'i' command to create contours, labelling
them manually with the 'l' command.  This doesn't work on a lot of
modern graphics cards, unfortunately.  The -cl option of falsecolor is
your next best option.  Or, if you don't like that one, try -cb.

One of my favorites is to generate both an illuminance image and a
regular image, then combine them with falsecolor:

% rpict [options] octree > regular.pic
% rpict [same options] -i+ octree > illum.pic
% falsecolor -cl -i illum.pic -l Lux -p regular.pic > isolux.pic

-Greg

> From: "Pierre-Felix Breton" <mail_lists at pfbreton.com>
> Date: March 17, 2004 5:13:44 AM PST
>
Hi!

I am successfully generating falsecolor images and found the labels
that find the lowest and hightest values quite useful. Do you know a
way to add more labels in the image for intermediate values?

Thanks in advance,

Pierre-Felix Breton