| Overplot data on a 2d histogram [message #73181] |
Wed, 27 October 2010 17:11 |
jeffnettles4870
Messages: 111
Registered: October 2006
|
Senior Member |
|
|
Folks,
I mostly use IDL to write custom routines for ENVI, so I don't usually
have to use IDL's plotting routines very much. But I'm slowly but
surely developing a need to plot some 2d histograms for a couple
projects i'm working on. I can make the 2d histograms with HIST_2D()
(or J.D.'s HIST_ND) with no trouble. And I can also display the
resulting image with no trouble, even with axes on the image if i'd
like. But the axes would have pixel coordinates as values, where i'd
like the axes to have values of the data that went into the hist_2d.
And then I'd like to be able to overplot stuff (more points,
polygons,etc.) on the plot, in the dataspace of the original data of
course (not the pixel coords of the histogram image). This is a more
complicated plot than i'm used to making :( Can anyone give me some
pointers about the best way to approach this? I really don't even
care which graphics system - whatever's simplest! :)
Thanks,
Jeff
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
