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1 Replies and 1541 Views How to create a exe file?  1541  1 Started by  Deleted User I Called a ENVI function ENVI_OPEN_FILE in my IDL procedure, now I created a exe file, when I run it, it always warn me using a undefined function/procedure ENVI_OPEN_FILE, please tell me how to create a exe file when calling a ENVI function in IDL procedure!
1 1541
04 Dec 2006 11:52 PM
1 Replies and 1097 Views Passing FLTARR through text widget  1097  1 Started by  Deleted User Hi, I am new to widgets. I am entering floating point numbers in my text widget, but once they have passed through event handling they are returned as integer values. Does this sound like something familiar to you that I may be missing Thanks
1 1097
04 Dec 2006 10:22 AM
4 Replies and 1687 Views Segmentation fault IDL 6.3 on Linux Debian Etch  1687  4 Started by  Deleted User Hi. We are evaluating IDL 6.3 on Linux Debian Etch and have run into a segmentation fault error each time a graphic device is started (e.g. IDL> help,/device ). In a previous thread (2165: Segmentation fault: IDL 6.3 on Debian SID: Hm Li), the same problem was detected on Debian Sid and a workaround was offered. We have tried reinstalling the X Windows packages as suggested, but with no success (it failed even after a fresh linux installation). Any help would be really appreciated. X con...
4 1687
28 Nov 2006 11:05 AM
1 Replies and 1360 Views deriv function and interfile images  1360  1 Started by  Deleted User I have 2 questions, does anyone know mathematically what the deriv funciton actually does when used for 2D arrays help says it performs a numerical differentiation using a 3 point langrangian interpolation... how does that work in 2D also is there a simple way to convert from interfile images to dicoms or read interfile files to a 2D array cheers.
1 1360
28 Nov 2006 08:23 AM
0 Replies and 1241 Views Intensity Profile - Spectroscopy from Image  1241  0 Started by  Deleted User Hi, I have to do some analysis and was hoping someone who has done something similar might help! I have some spectroscopic data, and my image from the FPA is the spread out light. I basically want to analyze a portion of this, and obtain intensity vs. pixels (i.e. corresponding to wavelength) to get the spectrum. I can open my image both in IDL and IImage and did do the histogram profile in IImage, but need something more for pixel by pixel. Any help would be appreciated! Thanks, Radha
0 1241
21 Nov 2006 08:12 AM
0 Replies and 1353 Views Count number of files selected  1353  0 Started by  Deleted User How would I proceed to count the number of files that I have selected using DIALOG_PICKFILE &91/MULTIPLE FILES&93, i.e., so as to proceed with executing a FOR loop on these files Thank you - I am very new to things here. Randy
0 1353
17 Nov 2006 03:50 PM
0 Replies and 2165 Views Stop responding ENVI/IDL  2165  0 Started by  Deleted User I have a strange problem in ENVI/IDL. Has anyone encountered the situation where after they compile their project files, IDL stops responding and the processor runs at 100 If I close all the file windows within IDL, the project compiles fine and I can run my project; but then if I open any of the files in my project, IDL stops responding once again. Thank you.
0 2165
16 Nov 2006 06:30 PM
1 Replies and 1291 Views License problem  1291  1 Started by  Deleted User Please can some help I am trying to write a piece of code that will. • If all the license for IDL 6.3 are being used the application will inform the user and the application then be loaded into the virtual machine.
1 1291
15 Nov 2006 02:48 PM
1 Replies and 1233 Views question about exiting  1233  1 Started by  Deleted User This question has to do with a project that I inherited from another worker that is no longer here (so I am still learning about the code). In the main Window of the application, in the upper right hand corner are the standard Minimize, Maximize, and Exit (X) buttons. Is there a way to take control of the Exit button so that when a user clicks on it I control what happens to the program Thank you.
1 1233
15 Nov 2006 12:22 PM
1 Replies and 3901 Views Converting TIFF to ENVI format  3901  1 Started by  Deleted User Hi, I have some image files that are .tif files. They are 320x241 the 241st being the header. I need to convert these file images into raw binary files (columns and rows of 1 and 0s) and the accompanying header to be able to work with them. Is there any easy way of doing this in IDL - (I do not have ENVI) Thank You!!
1 3901
14 Nov 2006 02:44 PM
1 Replies and 1670 Views Online Help does not work  1670  1 Started by  Deleted User Hello, I have an evaluation of IDL62 and somehow cannot use the Online help. I have looked at the previous posts about this and followed the suggestions given by the tech support, but my online help is still not accessible. When I double click on any topic, I get an error message similar to this: 'E:/RSI/IDL62/help/online_help/TVSCL.htmlwp1076589' I installed in the C: drive, and when I do: help,/preferences, my IDL_DIR is DEFAULT= 'C\RSI|IDL62' and IDL_HELP_PATH is USERFILE='C\RSI\IDL62\...
1 1670
13 Nov 2006 09:17 AM
1 Replies and 1358 Views 700 aerial photographs  1358  1 Started by  Deleted User Hi there, new on the forum and very new to IDL. Glad to be here. I have 700 aerial photographs which are in .tiff format. When I open one in ENVI, a dialogue box opens up and asks me to specify the projection and datum. This is United Kingdom, OS of Great Britain 36' for each one. Once I select this the image displays and is georefferenced. I was wondering if i could write an IDL script which would enable me to batch process each image so i don't need to specify the projection info each time...
1 1358
10 Nov 2006 12:20 PM
0 Replies and 1900 Views cropping fits images  1900  0 Started by  Deleted User The imcopy tool in iraf does an excellent job cropping images. It retains the wcs information and even keeps the original pixel indices. I have not been able to reproduce this in IDL. I can do a crop and resave it with the header but then I have to change the crpix, cdelt and naxis values. I am not even sure that this gives and accurate wcs and it assumes you have matched up a pixel location with its coordinates. I tried using modfits but this doesn't change the size of the image. I k...
0 1900
10 Nov 2006 12:59 AM
0 Replies and 1375 Views Counting bright spots  1375  0 Started by  Deleted User I'm new to IDL.I have been given an assigment where I have images with bright spots and I need to count the number of these spots in a given image.If any one has any ideas that could help me out,I'd really appreciate it.I was thinking if there's a way to access an image pixel by pixel,it would make my job easier
0 1375
09 Nov 2006 07:53 AM
0 Replies and 1219 Views Re-sampling radar data to a lat/lon grid  1219  0 Started by  Deleted User Hi, I am wondering about the best method for converting some previously fixed-distance (2km) gridded radar data to a more coarse, earth-fixed grid. The data consists of a 151 x 151 pixel array of rain estimates. I know the center of each 2 km pixel with respect to lat/lon and the middle pixel (75,75) is the location of the radar. I want to choose, say a 0.25 or 0.5 degree grid centered over the data and resample the data to that grid. Note that I have missing data near the center of t...
0 1219
07 Nov 2006 05:18 AM
1 Replies and 1611 Views Deleting a vector from Available Vectors List  1611  1 Started by  Deleted User Hi, I'm writing a program that makes changes to attributes of a vector. But, no matter those changes are saved to a file or not, the changes remain changed unless I manually remove the vector from the AVL, or restart the whole ENVI session. So, I like to know a function/procedure that removes a vector from the Available Vectors List. (Or a function/procedure that updates/reload the vector from disk.) Thank you.
1 1611
06 Nov 2006 11:43 AM
1 Replies and 1392 Views editing in OS X environment  1392  1 Started by  Deleted User I have a student version of IDL both for PC and for Mac OS X. The PC environment is beautiful to work with, but I was disappointed to find what I got in the OS X version. It's all grayscale (obviously ported straight from Unix) and worse yet, the editing command keys don't work. I have to copy and paste by pulling down the edit menus. two questions: 1. Does anyone know how to make the editing keystrokes work I'm using OS 10.4 on a powerbook G4. 2. Is the full version for OS X better d...
1 1392
04 Nov 2006 11:41 AM
1 Replies and 1532 Views Comparing Pixel Values in Images w/IDL  1532  1 Started by  Deleted User I'd like to apologize if this is a simple question, but I am new to IDL and haven't had a lot of experience with it yet. I have some GeoTIFF files created in ENVI (georeferenced MODIS imagery that has been exported as GeoTIFF files) that I need to compare with one another to see if there is snow cover in some and not others. The images are georeferenced and have common points, but do not have the same dimensions or same complete coverage areas. So, I think I need to find a way to have IDL...
1 1532
03 Nov 2006 07:35 AM
1 Replies and 1050 Views Integration with Matlab  1050  1 Started by  Deleted User Dear all, is there someone that know about the integration of IDL with Matlab user function Does exist any possibility Do you have any experience Thank you a lot, Giorgia
1 1050
02 Nov 2006 06:46 AM
1 Replies and 1489 Views why this program is error  1489  1 Started by  Deleted User pro para tape7_0 = filepath('tape7_0.scn',root_dir=&91'd:'&93) data_0 = read_ascii(tape7_0, data_star=11, count=count, num_records= 20) tape7_0_columns = {freq_mcrn:0.0, tran:0.0, pth_thrml:0.0, $ surf_emis:0.0, sol_scat:0.0, sing_scat:0.0, grnd_rflt:0.0, $ drct_rflt:0.0, total_rad:0.0, ref_sol0:0.0, sol_obs:0.0, $ depth:0.0} tape7_0_columns_array = replicate(tape7_0_columns,count) tape7_0_columns_array.depth = reform(data_0...
1 1489
01 Nov 2006 07:43 PM
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