comp.lang.idl-pvwave archive: archive » Help: Plotting 3d data as 2d intensity map or histogram

Home » Public Forums » archive » Help: Plotting 3d data as 2d intensity map or histogram

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Help: Plotting 3d data as 2d intensity map or histogram [message #41426]

Thu, 21 October 2004 20:07

gianguido
Messages: 2
Registered: October 2004

Junior Member

Hi everyone,

here's my problem:
I have an 3 x N array. the 3 cols represent r,t and F(r,t). I don't
know what the function F is I just have some noisy data to fill the
matrix.

I would like to compute a 2d image where the intensity of each pixel
is proportional to the average value of F(r,t) and where the
coordinates of the pixel in question is related to the value of r and
t.

I have two further points:

1) r and t are continuous so I would like to create bins along the
axes
2) within a given bin (or a given r and t range) F(r,t) can have
different values, so I need to compute the average of F over the bin.

I thought hist_2d could do it but that is not what I need... any help
or suggestions? I have no idea about how to go about coding...

Many thanks for any help you can give!

Gianguido

PS: this group seems more active than the "plain" lang.idl. what is
the difference between idl and idl-pvwave?

Report message to a moderator

[Message index]

Help: Plotting 3d data as 2d intensity map or histogram

By: gianguido on Thu, 21 October 2004 20:07

Previous Topic:	Projection Parameters in ENVI
Next Topic:	Reversed log axes in object graphics

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Mon Oct 27 00:01:39 PDT 2025

Total time taken to generate the page: 3.19813 seconds