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1 Replies and 2257 Views
Please show me the way to display AVIRIS images 2257 1
Started by Deleted User
The problem I have is to display AVIRIS images via IDL. The images can be displaid via ENVI. The images are 3 dimensions (samples, lines and bands)binary data, 16 bit integer, BIP format and big-endian. I am going to display on a PC. I followed the steps (Binary_template, read_binary and tvscl) shown on manuals without syntax errors. However, the displays were wrong. Please show me the right way. Thanks a lot. Chengqian Zhang
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1 |
2257 |
30 Dec 2003 07:11 AM |
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0 Replies and 2039 Views
derivatives on Z profiles 2039 0
Started by Deleted User
i'm trying to compute 1st derivatives on all z profiles (pixels) of a multi-dimensional image.
using convol seems to work on x and y dimensions only.
any ideas
cheers,
Tal
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2039 |
24 Dec 2003 07:17 AM |
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1 Replies and 2054 Views
derivatives on Z profiles 2054 1
Started by Deleted User
i'm trying to compute 1st derivatives on all z profiles (pixels) of a multi-dimensional image.
using convol seems to work on x and y dimensions only.
any ideas
cheers,
Tal
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1 |
2054 |
24 Dec 2003 07:17 AM |
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0 Replies and 2080 Views
Histogram function... 2080 0
Started by Deleted User
I have a little beginners problem I suppose.
When using the histogram plot function the output data are translated to have min value = 0. Apart from that the plot seems to be correct (i.e. the densityfunction looks like it should).
When plotting several histograms in the same plot all curves are starting from zero.
There is not att data problem, since when lettting IDL compute the min value of the set it is !=0.
Have anyone seen this before and/or have the (I suppose it is) simple s...
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0 |
2080 |
16 Dec 2003 02:30 AM |
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0 Replies and 1896 Views
PRO files at NASA site 1896 0
Started by Deleted User
We got everything installed, but
apparently we cannot process the
NASA IDL archive (all *.pro files)
with the FREE version of IDL
Is this correct, are we SOL
Thanks in advance....
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0 |
1896 |
19 Nov 2003 01:48 PM |
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1 Replies and 2219 Views
old versions of idl running under win XP 2219 1
Started by Deleted User
I am trying to install idl 5.3 running on win XP.
I am having trouble with the license manager not
recognizing my hostid properly. Does anyone have experience with this
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1 |
2219 |
10 Nov 2003 06:48 PM |
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0 Replies and 2064 Views
PostScript from iTools 2064 0
Started by Deleted User
Has anyone tried to produce PostScript output from iTools (in particular iPlot) The only way I can find is to select File->Print from the menu, and then check the box 'Print to File'. This doesn't seem to produce the same quality as PostScript generated from direct graphics using the PS device. Fonts, symbols and lines appear somewhat blurry, much the same way as exporting a plot figure to an image file format such as bitmap, jpeg etc.
If PostScript is not the answer, is there some other ...
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0 |
2064 |
04 Nov 2003 09:57 PM |
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0 Replies and 1910 Views
adding colorbar to XVOLUME 1910 0
Started by Deleted User
Hi all,
I'm currently working on a 3D Visualiztion system. Right now, I have a GUI that upon user-interaction renders a volume using XVOLUME. I'm trying to add a color bar to the XVOLUME window. If you know how I might be able to this or if you're just an IDL volume vis. guru in general, your help would be greatly appreciated.
Thanks,
Erica
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0 |
1910 |
29 Oct 2003 08:34 PM |
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3 Replies and 2064 Views
IDLVM - where do the print statements go? 2064 3
Started by Deleted User
Hi all.
I've made a .sav file of one of my applications (version 6) that runs fine on my linux system, both in licensed and VM conditions, printing informative little remarks to the standard output. On Windows 2000 (where I am a naive user) if I use idlde and restore the .sav file, all is well -- my 'print's print where I can read them. Where do they go when I use the VM
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3 |
2064 |
14 Oct 2003 05:36 PM |
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0 Replies and 1922 Views
opening a file on a remote machine 1922 0
Started by Deleted User
Hi,
I am running IDlv5.4 on a Linux machine.
How do I open a file for reading or writing on another machine connected on the same netowrk (Syntax please)
Suppose the machine name is 'uranus'and the file is at '/scratch/file.dat' on that machine.
Your help is much appreciated,
John Hitti
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0 |
1922 |
05 Oct 2003 07:29 PM |
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0 Replies and 1889 Views
reading AVS (*.fld) files 1889 0
Started by Deleted User
I am new to IDL. I am trying to read an image
that is an AVS field file. Any suggestions
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0 |
1889 |
02 Oct 2003 11:31 AM |
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1 Replies and 1859 Views
Realworld experience of IDL on Apple G5s 1859 1
Started by Deleted User
So tell me if anyone has such (either at RSI or out in the real world). I'm interested if IDL runs (some things don't), and runs fast.
I suspect that it doesn't take advantage of the full 8 GB address space (pity that), but I'm curious what the full memory capabilities are (2 4).
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1 |
1859 |
01 Oct 2003 10:59 AM |
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0 Replies and 2443 Views
Calling iPlot from widget applications. 2443 0
Started by Deleted User
Hi,
I am currently developping a postprocessor, which interactively plots the datat with iPlot.
However I got the annoying fact, that whenever I plot, the labels are not showing up. I solved the problem by overploting it with the same data (using the /overplot keyword of iPlot), which is a quick'n'dirty method, in particular that the dataset occurs twice in iPlot.
Is there any method to enforce a refresh of the iPlot drawing area
Thanks for any help
Sven Reiche
PS: My platform ...
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0 |
2443 |
29 Sep 2003 02:57 PM |
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0 Replies and 1957 Views
Creating a Transparency over a gray scale image 1957 0
Started by Deleted User
Hello
I would like to use as many envi functions as possible to accomplish the following, but if needed, I can also do some stuff in IDL.
What I would like to do is create something like a transparency to overlay on a gray scale image. The transparency will be made up of red pixels that correspond to the original gray scale image. I can do this using the 8 color scheme and changing the color table, but I want to find a way to do this using the True color scheme.
Thanks for your time,
...
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0 |
1957 |
16 Sep 2003 09:56 AM |
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1 Replies and 1870 Views
Creating a Transparency over a gray scale image 1870 1
Started by Deleted User
Hello
I would like to use as many envi functions as possible to accomplish the following, but if needed, I can also do some stuff in IDL.
What I would like to do is create something like a transparency to overlay on a gray scale image. The transparency will be made up of red pixels that correspond to the original gray scale image. I can do this using the 8 color scheme and changing the color table, but I want to find a way to do this using the True color scheme.
Thanks for your time,
...
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1 |
1870 |
16 Sep 2003 09:56 AM |
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1 Replies and 2510 Views
CPU time in IDL 2510 1
Started by Deleted User
Is there any method to know the CPU time spent on running a certain code That is , could we get the relative time I tried to use 'systime', whose minimum unit is second. Second is too much for a simple code.
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1 |
2510 |
10 Sep 2003 09:11 AM |
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2 Replies and 2332 Views
Arguments in class definitions 2332 2
Started by Deleted User
I'm new to IDL and fairly new to Object Oriented programming. I'd like to be able to define a class that has variable size -- that is, different instances of the class can take up different amounts of memory.
For example, suppose I wanted to create a class called Polynomial, with the object data being an array of the coefficients of a polynomial. I would want to be able to specify the length of that array for each instance I created with a call to the OBJ_NEW routine. That way I could have...
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2 |
2332 |
29 Aug 2003 09:04 AM |
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0 Replies and 2464 Views
IDL crash when stepping through object oriented program 2464 0
Started by Deleted User
I've written an object oriented program that makes calls to ENVI. I will frequently get a crash when I step into an INIT method. If I place a break past the INIT method, I can get past that part of the program and step through the following code. This means I can never step through a whole program. Is RSI aware of this problem Is there any update to fix it. I am using ENVI 3.6 with IDL 5.6
-Jon
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0 |
2464 |
28 Aug 2003 04:37 PM |
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0 Replies and 2252 Views
IDL crash when stepping through object oriented program 2252 0
Started by Deleted User
I've written an object oriented program that makes calls to ENVI. I will frequently get a crash when I step into an INIT method. If I place a break past the INIT method, I can get past that part of the program and step through the following code. This means I can never step through a whole program. Is RSI aware of this problem Is there any update to fix it. I am using ENVI 3.6 with IDL 5.6
-Jon
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0 |
2252 |
28 Aug 2003 04:37 PM |
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0 Replies and 2378 Views
IDL crash when stepping through object oriented program 2378 0
Started by Deleted User
I've written an object oriented program that makes calls to ENVI. I will frequently get a crash when I step into an INIT method. If I place a break past the INIT method, I can get past that part of the program and step through the following code. This means I can never step through a whole program. Is RSI aware of this problem Is there any update to fix it. I am using ENVI 3.6 with IDL 5.6
-Jon
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0 |
2378 |
28 Aug 2003 04:37 PM |