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4 Replies and 226 Views WV_FN_HAAR  226  4 Started by  amal amal I am trying to use HAAR function to decompose an image and the coefficients, I have read the documentation but I didn't yet understood how to use it, how to get the 4 image components after decomposition with HAAR with order 1.
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by  David StarbuckJump to last post
16 Oct 2017 03:17 PM
0 Replies and 8 Views MERIS Flags  8  0 Started by  Siham Benzouai Hello, I have to write an IDL script to exclude flaged values from a level 2 MERIS product. (N1). On ENVI, flags are stored in a dataset of 3 layers in bit format and I didn't find any way to do that. Thank you in advance. Siham
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14 Oct 2017 02:42 PM
0 Replies and 32 Views How to delete a workspace  32  0 Started by  David Starbuck Question from a user: In IDL 8.5, how do I delete a workspace I want to delete a workspace from the pulldown list that is accessible when starting IDL 8.5. Possible Answer: -Go to Window > Preferences > General > Startup and Shutdown > Workspaces -Select the workspace you wish to remove and click the 'Remove' button
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13 Oct 2017 01:59 PM
1 Replies and 20 Views WINDOW: Routine is not defined for the current graphics device  20  1 Started by  Ben Castellani I recently updated my IDL to 8.6.1 and now I cannot use the Direct Graphics command WINDOW. I get the error: ' WINDOW: Routine is not defined for current graphics device.' I am running OS X El Capitan (10.11.2), and I have the latest version of XQuartz installed. Not sure how to fix this, used to work fine on my old version.
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by  Ben CastellaniJump to last post
11 Oct 2017 03:02 PM
0 Replies and 20 Views OSX: wrong xterm path in launchers  20  0 Started by  Peter Vogt after upgrading to 8.6.1 the LicenseAdministrator on OSX fails to start. This type of regression has happened many times before and it is surprising to see it happens again on such a vital component as the LicenseAdministrator. The error is caused by using a wrong path for xterm (/usr/X11R6/bin/xterm) while the correct path is /opt/X11/bin/xterm For example in: /Applications/harris/envi54/idl86/ Changing the full path to xterm to ...
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10 Oct 2017 08:27 AM
0 Replies and 70 Views Trouble with Cursor Function  70  0 Started by  David Starbuck A user reported an issue they are encountering using the cursor command: Question: I am currently using IDL 8.4 in a Windows 10 laptop. For some unknown reason the cursor command does not return the correct values from the graph. However, when I use the cursor command in my old laptop which has an older IDL and runs on ubuntu it reads the data correctly. I request you to kindly solve this problem. Considering the graphs of IDL are non-interactive in nature when MATLAB and ...
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13 Sep 2017 08:53 AM
1 Replies and 61 Views Control where ./idl is created?  61  1 Started by  Ben Castellani When launching ENVI or IDL on Windows, the application saves user configuration data in the following location: C:\Users\Username\.idl Can this default location be changed
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by  Ben CastellaniJump to last post
11 Sep 2017 09:21 AM
3 Replies and 184 Views Image(): Failure to acquire window rendering context  184  3 Started by  SoulYell I am using Linux Debian and IDL 8.4. Recently I used a Samsung TV Set as my monitor. I encountered this issue here: When I call IMAGE() to show an image picture, inside IDLDE, it will print out the following error message and hang: IDLITWINDOW::ONEXPOSE: Failure to acquire window rendering context. Unable to acquire device context. Can someone tell me how to deal with this
3 184
by  John MeyerJump to last post
08 Sep 2017 01:41 PM
2 Replies and 70 Views 2-dimentional fit to gridded data  70  2 Started by  Jürgen Koglin I am looking for an IDL function which enables a 2-dimensional fit to gridded data, i.e. similar to the GAUSS2DFIT or the SFIT function. In the particular case the data is a grid array, let's say a=dblarr(x,y), where x, y and z=a(x,y) are the coordinates in the 3d space. The function I want to fit to my grid array could be a hemisphere, cone, or even any other mathematical area function, which can be described as z=f(x,y). CURVEFIT is something which is very to close to that what I need,...
2 70
by  Jürgen KoglinJump to last post
08 Sep 2017 09:54 AM
1 Replies and 173 Views Recover active source code  173  1 Started by  EvanM My program accidentally overwrote its source code .pro (save with filename='' instead of 'proc.sav') Can I recover the original source code I did a 'save, /routines' but that is not readable. I tried restarting and stepping with .trace, but that does not echo the source lines.
1 173
by  David StarbuckJump to last post
05 Sep 2017 12:09 PM
1 Replies and 51 Views rdpix broken  51  1 Started by  Peter Vogt starting with IDL 8.6.1 when calling rdpix from the command line I get this (on all OS): 'Windows': cr = string('15b)string('12b) ; carriage and new line ^ Syntax error. At: C:\Program Files\Harris\ENVI54\IDL86\lib\, Line 73 Attempt to call undefined procedure: 'RDPIX'. Since the source code of rdpix has not changed this error must be caused by some different compilation setting in 8.6.1.
1 51
by  David StarbuckJump to last post
05 Sep 2017 12:06 PM
1 Replies and 48 Views Properly Dereferencing and Setting values via Pointers  48  1 Started by  Kevin Dunphy For example: IDL> a = 10 IDL> b = ptr_new( a, /allocate_heap ) IDL> *b = 20 IDL> print, a 10 IDL> I would expect by dereferencing pointer 'b', and setting it to another value, this should change the value of 'a', although this is not the case. What could I do to get the desired result
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by  David StarbuckJump to last post
05 Sep 2017 11:44 AM
1 Replies and 109 Views Run a sav from a ASP.NET web page  109  1 Started by  mohammad vahm Hi, I have written a ASP.NET program in which a SAV file can be run by a user click. That is the ENVI idl run-time (virtual machine) is invoked to run the SAV in the aspx page. While the application is ok when I run it through Visual Studio debugging environment, It can not be run after publishing the website in local host (i.e. http://localhost/myWeb ). I don't know what the reason is and I will be appreciate if anybody could help me.
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by  David StarbuckJump to last post
05 Sep 2017 11:36 AM
1 Replies and 120 Views attempt to call undefined function.  120  1 Started by  Amit When running an IDL example I get the following error. Attempt to call undefined function: 'IMAGE' When I print the path variable using the following command print, !PATH I can see that the path variable includes a folder in which “” is located. I am not sure why I am getting this error. /Applications/harris/idl86/lib/enterprise/ese:/Applications/harris/idl86/lib/graphics:/Applications/harris/idl86/lib/hook:/Applications/harris/idl86/lib/imsl:/Applications/harris/idl86/li...
1 120
by  David StarbuckJump to last post
05 Sep 2017 11:34 AM
8 Replies and 276 Views ENVI_GLT_DOIT OPENR Error  276  8 Started by  Miriam Johnston I am unable to get ENVI_GLT_DOIT to complete; it finishes 'Build GLT File Part 1' and then aborts at the end of 'Build GLT File Part 2 with the following error: Build GLT File: An error has occurred during processing. Error: 'OPENR: Error opening file. Unit:102, File: /tmp/envFriJul2812222220171926558349_1.tmp' The result may be invalid. I am using IDL version 8.4 on Ubuntu 14.04 and trying to create GLTs from lat/long files associated with MASTER remote sensing datasets. Here is an exampl...
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by  Miriam JohnstonJump to last post
01 Aug 2017 11:03 AM
1 Replies and 212 Views libGL error  212  1 Started by  Gregory Ramos I don't use IDL, I am asking this on behalf of a user. We have two machines, his code ran on one, but not the other. I updated the machine where the code would not run to the newest version of IDL, same error: libGL error: No matching fbConfigs or visuals found libGL error: failed to load driver: swrast It appears that both machines have the same libraries installed. Although some of our machines have Nvidia, these two don't. We are also getting a 2nd error: !CGPLOTS ->...
1 212
by  Mari MinariJump to last post
24 Jul 2017 02:28 PM
1 Replies and 208 Views Acquiring ROI‘s data  208  1 Started by  Z Z I want to get every pixel's data value in a ROI area by using IDL.However, I don't know which function can be used to achieve this purpose. Thanks for your sincerely reply in advance.
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by  Mari MinariJump to last post
29 Jun 2017 02:00 PM
0 Replies and 196 Views Creating Series of parameter lists automatically  196  0 Started by  Alireza Taravat Creating Series of parameter lists automatically I would like to know if there is any way to create something like this automatically: untitled_0 = strarr(12) untitled_1 = strarr(30) untitled_2 = strarr(50) untitled_3 = strarr(40) untitled_4 = strarr(60) untitled_5 = strarr(80) The number of untitled is not fix and it depends on my input. So it is possible to create the names like this somehow: For k = 0, 5 do begin Untitled_(k) = ……………….. Endfor
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27 Jun 2017 08:19 AM
1 Replies and 294 Views Issues with the MEAN function  294  1 Started by  SH I am stymied by something that IDL is doing in my code, and I cannot explain it. I am calculating the mean (average) of a defined subset of an array (using an index defined by the where function), and I am printing out the mean as well as the number of elements in the subset for which a certain condition is met. If no element meets the condition (index = -1) , I would expect the mean to come out as NaN. However, IDL always returns a number. I thought something was wrong in my elaborate code, but...
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by  David StarbuckJump to last post
30 May 2017 11:33 AM
0 Replies and 251 Views glibc detected error  251  0 Started by  David Starbuck Question: A user is running IDL scripts on their system. Usually the scripts run properly but sometimes a crash occurs with the following error message: *** glibc detected *** /opt/envi5.3.1/idl85/bin/bin.linux.x86_64/idl: malloc(): memory corruption: 0x00000000012dea60 *** The backtrace has lines that say things such as the following: ==5d33231000-7f5d34c3d000 r-xp 00000000 /usr/lib64/ 7f5d35926000-7f5d359f4000 r-xp 00000000 /usr/lib64/li...
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24 May 2017 11:10 AM
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