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2 Replies and 2818 Views
Attempt to call undefined procedure/function: &39;ENVI_PROJ_CREATE&39; 2818 2
Started by Deleted User
I've run into a problem when calling ENVI_PROJ_CREATE from and IDL procedure. I use ENVI5.1 IDL8.3 and never run IDL code before.
Here is the code:
pro test_batch_modis_conversion_l2_swath
compile_opt idl2
modis_swath_file = 'C:\MCTK_Input\MYD04_3K.A2002247.0300.006.2014195232718'
;The specified output location MUST end in the appropriate path
;separator for your OS
output_location = 'E:\Downloads\Aerosol retrieval'
output_rootname = 'test'
swath_name = 'mo...
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2 |
2818 |
12 Mar 2015 02:18 AM |
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2 Replies and 1677 Views
Gaussian Distribution with Specified Mean and Sigma 1677 2
Started by Deleted User
Hello,
I have to simulate a sensor response, which has spectral response functions of Gaussian from 380 to 2510 nm with 10 nm sampling and 12 nm FWHM.
sigma = FWHM / 2.35
mean = 0
array = RANDOMN(seed, 60) ; it is 60, assuming 30th band is the center band.
new_distribution = array * sigma mean
However, the generated numbers are not what I expected, ranging from -5 to 5. I was expecting a set of numbers ranging between 0 and 1, center band has the highest value 1, FWHM of the bell curve ...
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2 |
1677 |
10 Mar 2015 10:39 AM |
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1 Replies and 1542 Views
Compiling Another Program from Within IDL 1542 1
Started by Deleted User
Hi all,
I am creating a program to automate some processes that are dependent on certain libraries of different pro files. Is there a way I can have one program compile another as part of its procedure
Thanks!
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1 |
1542 |
09 Mar 2015 06:29 PM |
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2 Replies and 2090 Views
Hardware Random Number Generator 2090 2
Started by Deleted User
Hello--
I've recently purchased and set up a hardware random number generator (the TrueRNG2 from ubld.it) which generates random numbers for the entropy pool on a linux machine. The random number functions in IDL (e.g. randomu(seed)) can only generate pseudo-random numbers from IDL's hard-coded algorithm, correct How can I have IDL (i.e. what function should I use to) construct random numbers from the computer's entropy pool or even from pre-existing random number generators built into lin...
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2 |
2090 |
09 Mar 2015 02:49 PM |
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2 Replies and 1772 Views
error: Variable is undefined: STDDEV. 1772 2
Started by Deleted User
Running
zzyzx=&911, 2, 3&93
print, stddev(zzyzx)
Gives error:
Variable is undefined: STDDEV.
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2 |
1772 |
06 Mar 2015 03:38 PM |
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1 Replies and 1607 Views
histogram question 1607 1
Started by Deleted User
hi
here is a example code
data = &910, 0.3, 1.3d&93
h1 = HISTOGRAM(data, nbin=3, min=0, max=1, loc=loc1)
h2 = HISTOGRAM(data, binsize=0.5d, min=0, max=1, loc=loc2)
print, h1
print, h2
h1 = 2 0 1
h2 = 2 0 0
h1 and h2 is not equal!!
is it correct
thanks
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1 |
1607 |
06 Mar 2015 08:01 AM |
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1 Replies and 1509 Views
Locking graphics in Gui 1509 1
Started by Deleted User
Hello,
I created a fancy GUI for a project and showed my 10 year old son it. He is interesting in programming and I wanted show off the sorts of things you can make.
Anyway, within about three seconds he can screwed up all the graphics with in the Gui. My question is, is there a way to lock graphics in a GUi I am using window_widgets with either a map() graphic or image () graphics. I still need the user to be able to click on the map so I can get points from the user clicks, but I don'...
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1 |
1509 |
05 Mar 2015 09:39 AM |
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1 Replies and 1590 Views
FILE_UNTAR with /LIST option 1590 1
Started by Deleted User
Hello, I am trying to use the FILE_UNTAR command on a tar.gz file with the /LIST option, in order to obtain the list of directories and files within the tar.gz file without untarring it. I have tried the following syntax
FILE_UNTAR, tar_file, FILES = file_list, /LIST
where tar_file is the .tar.gz file I would like to inspect and file_list is the variable where I would like to store the list of files in the .tar.gz file. However, I get the following error message
FILE_UNTAR: FILE_BASENAME: String...
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1 |
1590 |
05 Mar 2015 06:54 AM |
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1 Replies and 1637 Views
License Manager error in IDL 1637 1
Started by Deleted User
Hi
I have IDL 8.1. I have some problems with License Manager. In order to run the IDL, first I have to run ./lmgrd (~/Applications/itt/idl/idl81/bin/lmgrd). Then I can run the IDL. But it goes disconnected randomly (sometime after 30 minutes sometimes after shorter time). This is the error that I get:
(idl_lmgrd) Lost communications with lmgrd.
(idl_lmgrd) EXITING DUE TO SIGNAL 37 Exit reason 5
LICENSE MANAGER: No server response after 3 attempts (3:0 minutes).
Does anybody know how to fix ...
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1 |
1637 |
04 Mar 2015 10:50 AM |
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2 Replies and 1868 Views
Creating variables/structures with a foreach loop 1868 2
Started by Deleted User
Hello,I want to create variable names (that I want to use later in the program) through a foreach loop. I want the variable names: dist100, dist200, dist300 etc. and assign an array to those (e.g. &9199, 99&93). Then I want to use those variables later on to do some further calculations, so I want to be able to e.g. add values to them to make them &9199, 99, 34, 56, 87, 32&93 etc. Is there a simple way doing thisI also tried creating structures this way (see below):distarray = &91100, 200,...
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2 |
1868 |
03 Mar 2015 12:03 PM |
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1 |
2375 |
02 Mar 2015 04:37 PM |
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1 Replies and 1364 Views
how to access read_tiff and read_jpeg 1364 1
Started by Deleted User
Hello,
I currently use an IDL 8.3 license. I need to read in an image in TIFF or JPEG format using IDL. I tried using read_tiff or read_jpeg tasks in IDL. Looking at the IDL reference on exelisvis website, it seems like these procedures should be available with IDL 8.3 license. However, it seems like the corresponding procedures do not exist in my IDL library, because I cannot compile the files:
IDL> .compile read_tiff
Error opening file. File: read_tiff
IDL> .compile read_jpeg ...
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1 |
1364 |
27 Feb 2015 12:49 PM |
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2 Replies and 4681 Views
Error opening file: OPENW 4681 2
Started by Deleted User
Hi folks,
I'm attempting to run the LandTrendr model in IDL, and have hit a snag. I have virtually no IDL experience, but was told that since the code is already written and has been tested, I should have very few hiccups. I've made it through a good number of modules, but have hit a breaking point. I don't know if there is enough background provided here for any of you to help my get past this error, but any help you may be able to provide would be greatly appreciated.
Cheers.
This is the error...
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2 |
4681 |
26 Feb 2015 01:46 PM |
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1 Replies and 1763 Views
Error running IDL 8.1 after upgrade to Mac OSX 10.10 (Yosemite) 1763 1
Started by Deleted User
Question: I recently upgraded my operating system on my computer to Mac OSX Yosemite, and when I try to run IDL I get the following error:
dyld: Library not loaded: /usr/X11/lib/libXp.6.dylib
Referenced from: /Applications/itt/idl/idl81/bin/bin.darwin.x86_64/libidl.8.1.dylib
Reason: image not found
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1 |
1763 |
25 Feb 2015 09:17 AM |
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0 Replies and 2753 Views
libGL error: failed to load driver: swrast 2753 0
Started by MariM
I am logging into a remote Mac OSX system that is headless and I get the following error when I create a plot. What is the cause of the error
IDL> PLOT, D, D, /POLAR, TITLE = 'Polar Plot'
Loaded DLM: XML.
libGL error: failed to load driver: swrast
Answer:
IDL is trying to use load graphics device and fails in this case because no graphics device is available. If no graphics device is available, or if the device is not working properly due to driver incompatibility, then you can set IDL to...
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0 |
2753 |
25 Feb 2015 07:50 AM |
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0 Replies and 1715 Views
IDL&39;s widget_tree is flickering 1715 0
Started by MariM
I have an application that uses a widget_tree that has many branches (folders). When the widget_tree is being built, it causes a lot of flickering as it updates. Is there a way to stop or delay the display until it is built so that it does not flicker
Answer:
Yes, you can use the UPDATE keyword to WIDGET_CONTROL:
http://www.exelisvis.com/docs/widget_...
You can disable on-screen widget updates (e.g.: WIDGET_CONTROL, id, UPDATE=0) and then re-enable updates (...UPDATE=1) after making a changes...
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0 |
1715 |
24 Feb 2015 02:13 PM |
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1 Replies and 1520 Views
Negative correlation taylor diagram 1520 1
Started by Deleted User
Hello,
I am working on the model's run performance evaluation, in this regard I want to plot a taylor diagram. I am using cgtaylordiagram, but this code generate only positive correlations on plot as my data have some negative correlations as well with respect to the observed dataset. Further more I need some guidance regarding the RMS corporation in taylor diagram. Kindly provide me a code or a specified method so that I can plot negative correlation as well in the diagram.
Regards
Ali asmat
De...
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1 |
1520 |
19 Feb 2015 06:11 AM |
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0 Replies and 1508 Views
Correct usage of IDL "CDF_TT2000" routine 1508 0
Started by Deleted User
QUESTION:
Why does the IDL "CDF_TT2000" routine produce an incorrect result in this case:
IDL> cdf_tt2000,x1,2012,1,1,11,/c
IDL> cdf_tt2000,x2,2012,1,1,12,/c
IDL> print,(x2-x1)/1d9
86400.000
--but produces the correct result as follows
IDL> cdf_tt2000,x1,2012,1,1,11,0,/c
IDL> cdf_tt2000,x2,2012,1,1,12,0,/c
IDL> print,(x2-x1)/1d9
3600.0000
ANSWER:
The IDL Help page for the "CDF_TT2000" specifies a usage syntax of:
CDF_TT2000, Epoch, Year, Month, ...
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0 |
1508 |
18 Feb 2015 06:39 PM |
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2 Replies and 1093 Views
Can&39;t suppress message from IDLGRMODEL::DRAW 1093 2
Started by Deleted User
The full message is "
IDLGRMODEL::DRAW: Total number of requested clipping planes exceeds supported limit (6)."
I've tried CATCH, !QUIET = 1, !EXCEPT = 0. None of these were able to suppress the message. My entire code is below.
FUNCTION JPMProgressBar, percentComplete, progressBar = progressBar
IF progressBar EQ !NULL THEN BEGIN
progressBar = barplot(&91percentComplete&93, WIDTH = 1, DIMENSIONS = &91500, 100&93, MARGIN = &910.01, 0.2, 0.03, 0&93, /NO_TOOLBAR, $
...
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2 |
1093 |
18 Feb 2015 11:28 AM |
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0 Replies and 1502 Views
Keeping aspect ratio when display image using TVSCL 1502 0
Started by Deleted User
When use TV or TVSCL procedure to paint image data onto a WIDGET_DRAW, how to preserve the pixel aspect ratio It seems there is no ASPECT_RATIO option like the IMAGE command does.
Thanks for your any help
Regards,
Huang
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0 |
1502 |
16 Feb 2015 07:28 PM |
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