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1 Replies and 60 Views Having trouble getting signatures from a .sli to use with ENVISpectralAngleMapper  60  1 Started by  Stefan Hi, I want to use ENVISpectralAngleMapperClassification to classify as set of files using my own spectral library ('library.sli'). However, ENVISAM requires training data as a Task.MEAN-array. I am having trouble constructing this array from the files in my library. I am using ENVIGetSpectrumFromLibrary and I can select the entries I want (signatures = &91;0,1,2&93;) and then loop: list = LIST() for i=0, signatures.LENGTH-1l do begin LibTask.spectrum_name=speclib.SPECTRA_NAMES&...
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by  Mari MinariJump to last post
15 Dec 2017 10:45 AM
5 Replies and 282 Views WV_FN_HAAR  282  5 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  Owen RobertsJump to last post
14 Dec 2017 03:04 AM
1 Replies and 48 Views Boxplot outliers broken if single outlier  48  1 Started by  Achim Holtmann After having failed to use tech support (critical error - please check 'event viewer'), this is the bug I wanted to report: This works: arr = &91;1,2,3,4,5,2,1,2,3,999,999&93; bpd = createboxplotdata(arr, OUTLIER=out) o = boxplot(bpd, OUTLIER=out) This does not work (IDL does not draw outlier point): arr = &91;1,2,3,4,5,2,1,2,3,999&93; bpd = createboxplotdata(arr, OUTLIER=out) o = boxplot(bpd, OUTLIER=out) (tested under Windows 10, IDL 8.6.0)
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by  Ben CastellaniJump to last post
13 Dec 2017 03:49 PM
3 Replies and 77 Views IMSL routines on Mac?  77  3 Started by  Peg Shippert I'm trying to use IMSL routines on IDL Mac 64-bit, without success (see error in subject line). There is no 32-bit version available for download here for the Mac. I'm given the impression that this must be a generic problem Any advice on how to proceed
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by  Mari MinariJump to last post
13 Dec 2017 05:50 AM
1 Replies and 98 Views OSX: wrong xterm path in launchers  98  1 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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by  Mary Jo BrodzikJump to last post
30 Nov 2017 04:19 PM
1 Replies and 92 Views DLM_REGISTER  92  1 Started by  Sandy Kramer IDL 8.3 on MAC OS-X 10.12.6 Upon opening IDL, this error generated: DLM_REGISTER: Error opening file. File: applications/excelis/idl83/bin/bindarwin.x86_64/ No such file or directory Where does IDL define default the default DLM registry path Can this be edited to fix
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by  Mari MinariJump to last post
16 Nov 2017 09:46 AM
1 Replies and 108 Views vector routine doesn't work  108  1 Started by  Gamaliel Isaac Here is the program. Is there an error in the program or is it a bug. Each of the 2 vectors should be 1 in length and the second vector should originate at 2,2. pro displayVectorField xres = 4 yres = 4 dx = fltarr(xres,yres) dy = fltarr(xres,yres) dx&91;0,0&93; = 1 dy&91;0,0&93; = 1 dx&91;2,2&93; = 1 dy&91;2,2&93; = 1 v = vector(dx,dy,XRANGE=&91;0,4&93;,YRANGE=&91;0,4&93;,/OVERPLOT) end
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by  Ben CastellaniJump to last post
10 Nov 2017 03:02 PM
1 Replies and 136 Views how to improve efficiency of image processing  136  1 Started by  Wenkai Li wavelength = &91;412,442,488,530,554,645,747,857,1242&93; for s =0,ns-1 do begin;ns for l=0,nl-1 do begin;nl Y=data&91;s,l,*&93; coeffs = powerlaw_fit(wavelength, Y) endfor endfor is there any method to improve efficiency?thanks
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by  Wayne LandsmanJump to last post
02 Nov 2017 10:34 AM
1 Replies and 92 Views QROMO Manual Page Example  92  1 Started by  Marcos Montes A colleague came to my office and asked if IDL's implementation of QROMO produces accurate results since the example given by IDL is off from the analytic result by 1. When you look at the example on IDL's QROMO manual page, it is to integrate the function 1/x^4 from 2 to infinity. Now, it is true that when you do exactly what is stated on the manual page, you get the stated results: PRINT, QROMO('hyper', 2.0, /MIDEXP) does yield 0.0412050 Anyone can integrate this by hand and on...
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by  David StarbuckJump to last post
27 Oct 2017 08:55 AM
2 Replies and 79 Views Outputting data to two columns  79  2 Started by  Paul Manley I'm having trouble formatting my wavelength and spectral data to two columns in a text file. This code applies a thresholded region of interest to plant images and gets the average spectra. I can output the data into a single column just fine. I can output to two columns but it goes through all the wavelengths first and then the data points. I've been trying different ways and am still stuck. Thanks.
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by  David StarbuckJump to last post
27 Oct 2017 08:43 AM
1 Replies and 270 Views Creating Series of parameter lists automatically  270  1 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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by  David StarbuckJump to last post
27 Oct 2017 08:13 AM
0 Replies and 34 Views MERIS Flags  34  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 96 Views How to delete a workspace  96  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 85 Views WINDOW: Routine is not defined for the current graphics device  85  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 112 Views Trouble with Cursor Function  112  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 91 Views Control where ./idl is created?  91  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 240 Views Image(): Failure to acquire window rendering context  240  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
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by  John MeyerJump to last post
08 Sep 2017 01:41 PM
2 Replies and 90 Views 2-dimentional fit to gridded data  90  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,...
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by  Jürgen KoglinJump to last post
08 Sep 2017 09:54 AM
1 Replies and 234 Views Recover active source code  234  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.
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by  David StarbuckJump to last post
05 Sep 2017 12:09 PM
1 Replies and 71 Views rdpix broken  71  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.
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by  David StarbuckJump to last post
05 Sep 2017 12:06 PM
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