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2 Replies and 10 Views IDL 8.8 Python image display  10  2 Started by  Judy Northrop I want to use Python's imshow routine to plot the spectral response of hyperspectral images, but I cannot get a simple 2D image to display. One dimensional plots work fine using matplotlib. I am using IDL 8.8 with the following, IDL> plt = Python.Import('matplotlib.pyplot') Loaded DLM: PYTHON37. IDL> help, im60 IM60 FLOAT = Array&91;584, 1000&93; IDL> plt.imshow(im60) Fatal error: IDL has encountered a fatal error and will now exit I am using Linux x64 with Ana...
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by  Judy NorthropJump to last post
26 Jan 2021 06:01 AM
1 Replies and 66 Views Contour Function vs Procedure  66  1 Started by  Josh Herron I am trying to plot horizontal scans taken from an aerosol lidar system. The raw data is composed of range resolved aerosol density collected at a particular azimuth angle. The range and azimuth data I convert into values of Northing and Easting against which I plot the aerosol data. If I use the contour plot procedure the data is plotted correctly, but if I use the contour function the same data will generate a qhull error. Is there a difference in how the qhull procedure is called in each ...
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by  Ben CastellaniJump to last post
25 Jan 2021 10:09 AM
1 Replies and 180 Views Will the next version of IDL run natively on Macs with the new M1 Chip  180  1 Started by  Sean Brittain Apple is moving away from Intel and to their new M1 chips. What is the timeline for releasing a version of IDL that runs natively on these chips.
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by  Ben CastellaniJump to last post
08 Jan 2021 01:42 PM
1 Replies and 31 Views How can I calculate square root of a matrix in IDL 8.4?  31  1 Started by  Uzzal Dash I need to calculate square root of a large dimension matrix. How can I do it using IDL
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by  Ben CastellaniJump to last post
08 Jan 2021 01:17 PM
0 Replies and 51 Views GAUSS2DFIT (bug solution)  51  0 Started by  Mike Wong GAUSS2DFIT with the /NEGATIVE option is supposed to fit a gaussian 'valley' instead of 'peak.' i came across intermittent cases where the function seemed to give a good fit in terms of parameter values, except that the output parameter A&91;1&93; was positive instead of negative. also, the return value had a positive gaussian peak instead of a negative gaussian valley. i have not thoroughly tested this, but adding this line of code seems to fix it: a&91;1&93; *= keyword_set(n...
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11 Dec 2020 07:53 PM
7 Replies and 988 Views Is this a dead language?  988  7 Started by  Chris Lauer How long will IDL keep running
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by  Michael LjungbergJump to last post
07 Dec 2020 07:35 AM
2 Replies and 230 Views IDl bug  230  2 Started by  Francesca Scipioni I use IDL 8.8, and I recently upgraded my OS to Big Sur. After that I notice that, when I press return on the keyboard to go to the next line, the line below disappears. This happens because the process of creating a new blank line by pressing the return key takes a very long time. After a new line is created, the delated line appears again. I also noticed that if I move the IDL window, the new line appears right away. This is a very annoying problem, how can I solve it
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by  Michael LjungbergJump to last post
07 Dec 2020 07:23 AM
2 Replies and 162 Views IDL 8.8 Workbench, icon sizes (Win10 x64)  162  2 Started by  Kip Matthews In upgrading to IDL 8.8.0 from 8.7.2 (on a Windows 10 64-bit PC), the icons of the buttons in the IDL Workbench (for New Pro File, Cut, Paste, Compile, etc.) are drastically smaller in size than they were in the 8.7.2 Workbench (very problematic on a UHD-resolution monitor). In the 8.7.2 workbench, one could right-click on the toolbar and get an option to show text on the buttons, or to use small small icons; the 8.8 Workbench doesn't provide these options. I don't see any settings in Preference...
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by  Kip MatthewsJump to last post
28 Nov 2020 01:22 PM
0 Replies and 62 Views Variable undefined problem: STRSPLIT  62  0 Started by  Brivael Laloux Hello everyone, I am a beginner in IDL language and I need it to use the ACIS Extract package. After instaling the IDL and the reauested libraries I tried to do the tutorial example of the package. I had several problems including incomplete IDL_PATH to access all libraries. Anyhow, I couldn't solve one problem: the function STRSPLIT. At some point, a procedure of the ACIS Extract package used this function and it raised an error 'Variable is undefined: STRSPLIT. Execution halted at: $MA...
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27 Nov 2020 07:24 AM
1 Replies and 130 Views reading and processing multiple bands into one big file  130  1 Started by  David Hein-Griggs Hello, I am helping a PhD student automate processing of hundreds of huge satellite imagery files. These imagery files have been split into individuals files per band in the process of correcting metadata in a previous step. These band files all have the same names -- only the directory names are different based on the name of the source satellite imagery file. 29/09/2020 00:31 644 alpha.bin.hdr 29/09/2020 01:24 419,576,868 alpha.bin.img &91;snip&93; 2...
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by  Mari MinariJump to last post
29 Oct 2020 12:13 PM
0 Replies and 152 Views IDL program stops at regular intervals  152  0 Started by  Ellen Hi guys, My IDL program stops automatically at regular intervals, about 2 hours, although it can run successfully every time after I restart it. The error message is: Failed to open image. This may be due to SELinux settings. Please see the Release Notes for ENVI, or contact your System Administrator. Error message: OBJ_NEW: IDLnaReaderRaster unable to connect to data Unable to invoke method on NULL object reference: )>. The halted line is at my ENVITask('ReprojectGLT'). I hav...
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05 Oct 2020 09:19 AM
1 Replies and 205 Views Importing library  205  1 Started by  Deepjyoti Satpathy I'm completely new to IDL and don't understand it much. Trying to run a simple code: tab = mrdfits('Sample.fits',1). Running this code shows an error - Variable is undefined: MRDFIT. In this regard I wanted to ask, how do I import the library
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by  Ben CastellaniJump to last post
11 Sep 2020 12:24 PM
0 Replies and 301 Views IDL PRINT format code problem  301  0 Started by  Jim Uba Q: Why does the following fail to print as expected IDL> a1 = 1 IDL> a2 = 2 IDL> a3 = 3 IDL> print,format='(8a,i02,i08,a3,i02,a4)', 'abcdefgh',a1,a2,'ijk',a3,'LMNO.txt' abcdefgh 1 2ijk 3LMNO.txt I expect output like: abcdefgh0100000002ijk03LMNO A: The first format code '8a' is not correct for the desired output. '8a' specifies output for 8 strings. Instead, the correct format code should be 'a8'. For example: IDL> print,format='(a8,i02,i08,a3,i02,a4)', '...
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27 Aug 2020 06:40 PM
0 Replies and 325 Views Widget focus  325  0 Started by  Jürgen Koglin Hello, I have several floating draw widgets. All these widgets have the same level hierarchy. Setting the input focus automatically on one of these widgets, when I move the mouse over it, works fine. Unfortunately, 'widget_control, /input_focus' does not only set the focus on the widget, but also brings the widget to the front. How can I set the input focus on the draw widget without bringing it to the front Which means, if applicable the widget should stay behind the others and not be pu...
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18 Aug 2020 05:36 AM
2 Replies and 452 Views plotting points on maps  452  2 Started by  Ben Felzer I am trying to plot filled and unfilled circles on a map - the unfilled circles appear as white circles, but I would like them to have a black outline around them. Is that possible (here are the commands I am using). A = FIndGen(47) * (!PI*2/46.) UserSym, cos(A), sin(A), /fill PLOTS,lon,lat,a,PSYM=8,SYMSIZE=0.75, LINESTYLE=0, COLOR=vcolors, THICK=5
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by  Ben CastellaniJump to last post
03 Aug 2020 01:47 PM
1 Replies and 328 Views Compile option disabled!! IDL command Prompt not working  328  1 Started by  Jorge Lozano The compile button is disabled, the cmd does not give the option to insert commands. When I tried to right click on project 'Build project ' a dialog box pops up with the following message: 'An internal error occurred during: 'Build Project'. Attempt to send message to IDL before IPS initialization complete. Clients must ensure IPS is ready or implement ServerReadyListener before calling this method.' Does any body have an idea what is going on I am totally new to IDL so excuse me if ...
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by  Ben CastellaniJump to last post
03 Aug 2020 12:08 PM
1 Replies and 283 Views Help understanding portion of a script  283  1 Started by  John Hageter I'm not the best with IDL but I have found my way around it. One thing I keep coming across while looking at a portion of an old script is 'arr' before each array, but I don't understand where the input is coming from; function impact, arr, r fl=(findgen(100)1.)/100. parr=arr&91;*,0&93; for i=1,n_elements(arr&91;0,*&93;)-1 do begin nx=arr&91;0,(i-1)&93;(arr&91;0,i&93;-arr&91;0,(i-1)&93;)*fl ny=arr&91;1,(i-1)&93;(arr&91;1,i&93;-arr&91;1,(i-1...
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by  Ben CastellaniJump to last post
03 Aug 2020 12:06 PM
2 Replies and 374 Views Saving variable incrementaly  374  2 Started by  Sébastien Flament How could I save a variable in a file inside a loop incrementaly
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by  Ben CastellaniJump to last post
03 Aug 2020 11:58 AM
1 Replies and 228 Views how to access AWS from IDL  228  1 Started by  Brian I searched around, but was not able to find anything especially useful as far as examples or documentation on how to access AWS datasets from within IDL. In particular, I would like to get satellite data from GOES-16 and 17: Any hints or leads would be greatly appreciated! Thanks, Brian
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by  Ben CastellaniJump to last post
03 Aug 2020 11:55 AM
1 Replies and 421 Views Interrupt embbeded Java Thread with CTRLC  421  1 Started by  IKhokhriakov Dear L3Harris Forum, I have a question concerning using embedded Java processes into IDL (Java-IDL bridge). Specifically I need to catch and process CTRLC while executing long running Java process from within IDL. Just listening for Thread.isInterrupted does not work. The source code of the embedded Java library can be found here: Thanks in advance.
1 421
by  IKhokhriakovJump to last post
13 Jul 2020 04:00 AM
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