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1 Replies and 2408 Views writing binary files using writeu  2408  1 Started by  Deleted User Hello I am a beginner at IDL and I have a problem with writing a simple array to binary files using writeu. Writing the same file in ASCII works fine, but I cannot read a binary file written with writeu (I think there are type conversion errors -why). The documentation on IDL basics is dreadful, hence I am writing to this group. Here is my code: pro bwriteu2 close, /all file_output2='banana_binary.out' file_output3='banana_ascii.out' openw,2,file_output2 openw,3,file_output3...
1 2408
31 Jan 2003 02:39 AM
0 Replies and 2996 Views gds or gdsII  2996  0 Started by  Deleted User I calculate holograms (using IDL) and want to send these patterns off to have photomasks made. Unfortunately, the mask makers seem to want everything in gds or gdsII format, which I know nothing about (but which seems to be the 'industry standard'). Would anyone have a program that would allow conversion from bitmap to gds Any advice would be appreciated.
0 2996
22 Jan 2003 03:33 AM
0 Replies and 3074 Views File opening  3074  0 Started by  Deleted User IDL 5.3 opens succesives files without changing the directory. IDL 5.5 cannot do it I did not succed to manage this problem - I am using a loop (for) and commnad openu!
0 3074
20 Jan 2003 03:37 AM
1 Replies and 2807 Views memory depletion and system halt (win ME)  2807  1 Started by  Deleted User Almost all the time, I end up with no memory available and the system halted. At the beginning, memory is not a problem. As time goes on, allocated memory increases even if I do not generate new variables. For example, I keep using 'print' or 'help'. Finally no free memory is available. When I run a huge program unknowingly, the system halts. Also windows multi-tasking becomes impossible. Why does this happen I am using IDL 5.4 on Pentium III 700 MHz, 392 M RAM, 6Gb HDD.
1 2807
16 Dec 2002 09:15 PM
0 Replies and 2550 Views where function  2550  0 Started by  Deleted User I have written a procedure to find the background radiation in an image. I use sigmacutting to remove pixels with high values - often objects; imfit = image ; this is the array used by ;sfit, to find a polynomial equation ;representing the ;background im2 = image ; Image to be returned after removing the background radiation. im3 = image ; Median-filter on im2 to remove bad pixels. im2=median(im2,4) ; Same on imfit imfit=median(imfit,5) Here comes the problem: res0 = sfit(im...
0 2550
16 Dec 2002 12:05 PM
1 Replies and 3136 Views Invalid numbers: Bug in where and finite  3136  1 Started by  Deleted User I just discovered that the following line idx = WHERE(A&91WHERE(FINITE(A) EQ 1)&93 GT 13.0) does NOT give the expected result: print, a&91 idx &93 looks something like: 11.3799 11.7700 NaN 12.1800 12.3900 NaN NaN The statement above (idx=where..) is by the way a _*direct*_ copy of an example in the online documentation for the 'where' function... (Hence the capital letters) An easy workaround is of course to remove all the Nan's: nan_idx = where( finite(a) eq 0 )...
1 3136
11 Dec 2002 08:57 PM
0 Replies and 3163 Views CW_FORM  3163  0 Started by  Deleted User I developed a GUI using CW_FORM to build forms with several columns of buttons and test fields, but when I tested the software under different OS I realized that with some OS the forms built with CW_FORM are not aligned (i.e., the third button of the first column is lower than the third text field on the second column and the last button is muche lower than the last field). How could I fix that thank you
0 3163
27 Nov 2002 11:35 AM
1 Replies and 3975 Views Problems getting CURVEFIT to work...  3975  1 Started by  Deleted User Hi there, I'm trying to use CURVEFIT to fit data to a decay function of the form: f(x) = a(1-e^(bx))c My code is as follows: pro decayfunc, X,A,F,pder bx=EXP(A&911&93*X) F=A&910&93*(1-bx)A&912&93 if N_PARAMS() GE 4 THEN $ pder=&91&911-bx&93,&91-A&910&93*X*bx&93,&91replicate(1.0,N_ELEMENTS(X))&93&93 end X=&9130185.0,33897.0,35089.0,35377.0,35665.0&93 Y=&910.3002,1.3849,1.3004,1.226,1.3118&93 A=&911.25,-1.0,-0.1&93 weight=&911.0,1.0,1.0,...
1 3975
12 Nov 2002 12:23 PM
1 Replies and 3533 Views Need a help  3533  1 Started by  Deleted User A two variale function(x,y) is need to integrate only with a single variable x. But we need to show how the integration prediction values change with the other variale y, for example, y changes from 0 degree to 90 degrees. Say, I need to integrate f(x,0),f(x,1),f(x,2),f(x,3), ...,f(x,90),respectively. Now, IDL's QROMB and QROMO cannot let us use a variable y chang. How can I do this bar Who can debar this guestion, please tell me a.s.a.p. My email: strayingbirdsina.com
1 3533
05 Nov 2002 01:25 PM
0 Replies and 3382 Views Aggregate multiple netcdf files  3382  0 Started by  Deleted User I am a new IDL user and I have a question : I would like to analyse 30 netCDF files (same formats, for 30 consecutive years) as a single netCDF (and not ASCII) one, within IDL. Is there a way in IDL to aggregate multiple files into a single one (i.e. keeping netCDF format) or do I have to add the differents arrays within a loop Thanks in advance Brigitte Koffi
0 3382
22 Oct 2002 07:05 AM
2 Replies and 3757 Views XML parser for IDL  3757  2 Started by  Deleted User Rumor has it that IDL 5.6 will include an XML parser. Is this true This could seriously effect our decision about using the tool. Thanks,
2 3757
03 Oct 2002 06:18 PM
0 Replies and 3222 Views Cluster analysis in IDL 5.4?  3222  0 Started by  Deleted User Hi, Does anybody know if the CLUST_WTS and CLUSTER functions can be used in IDL 5.4 I looked in the help, and the syntax is outlined, but the .pro files aren't in the library. I noticed that these routines are heralded as 'new' in IDL 5.5. Has the help been updated before the program itself! Any ideas gratefully received as to how I can run these routines without upgrading! :) Thanks, Martin
0 3222
27 Sep 2002 04:39 AM
0 Replies and 3834 Views IDL 5.6 and Unisys license  3834  0 Started by  Deleted User Hello, Is there a release date yet for IDL 5.6 Any idea of the new features it will have Also, I have heard there is a time limit on the GIF license held by Unisys. Does that mean in the near future I can go back to creating GIF images Thanks for your help. -Andy
0 3834
20 Sep 2002 03:08 PM
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