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comp.lang.idl-pvwave Post New
Items(723) /15 Next >> Last >|
Subject Posted Replies From
idl vm- widget_base - bitmap keyword

Hi all, I am trying to run an application (.sav file) using idl vm (version 6.3/4). I get the following error message. "The following error was encountered: keyword BITMAP not allowed in call to: WIDGET_BASE" please consult... I want to read a bitmap (a logo) and display it on the GUI using the widget_base function. Here is the part of the code.. file = 'logo.bmp' osl_bmp = (file_search(ProgramRootDir(/oneup), file))[0] p3dBase = WIDGET_BASE( GROUP_LEADER=wGroup,$ bitmap= osl_bmp, xsize=xs, ........) any idea about the error? (Of course the codes work in

9/8/2010 2:06:14 PM 1 steverajiv <rajiv.paneersel...@gmail.com>
xloadct: color table from file persists

Hi everyone, xloadct seems to remember the colors from a non-default color table from an earlier call. I am using IDL 8.0 on Linux (I tested on IDL 7.1 and it had the same behavior) and the display is TrueColor. Here is the sequence of commands: xloadct,file='path/to/brewer.tbl' (and choose some color table) .. .. xloadct The last xloadct command displays the color names from the ITT supplied colors1.tbl but the colors themselves are from brewer.tbl. Regular loadct does not have this behavior (I used David's cindex to verify the loaded colors). I did put in a device,dec

9/7/2010 2:51:18 AM 0 Manodeep Sinha <manod...@gmail.com>
file_mkdir error

Hi, first I tried with the spawn command to create a directory but file_mkdir seems to be the easy way. But: when I use it inside a terminal it works fine. The folder gets created and I can cd, ' foldername' to it. When I use it inside my pro it seem to create the folder but I can not access it with cd,'foldername'. Neither with terminal (no such file ...). Ls shows the folder. I can access it with Dolphin. commands: e.g. terminal: file_mkdir,'test',/NOEXPAND_PATH works fine e.g. pro: file_mkdir,resultpath,/NOEXPAND_PATH only seems to work Is this

9/7/2010 3:34:10 PM 0 sirvival <fpfei...@hs.uni-hamburg.de>
IDL 8.0 Graphics web seminar

I'm giving a web seminar on using Graphics in IDL 8.0. Check the VIS website for signup information: http://www.ittvis.com/EventsTraining/LiveWebSeminars.aspx I'm doing the webinar live three times on Wednesday, September 8. The times (all local) are: 11 am Singapore, 2 pm London and 2 pm New York. The webinars are recorded, so even if you can't attend a live session, please sign up and you'll receive a message when the recording is posted to our website. mp

9/8/2010 1:00:35 AM 1 Mark Piper <mpi...@ittvis.com>
IDL invoked by cron, turning into zombie (hanging, not crashing)

IDL People, This could easily be some sysadmin-type issue on my system, but I wanted to find out if anyone had observed this behavior. I have a cron job that runs an IDL script every six hours. From time to time, it seems, the script does not complete. This would mean my script has a problem, but what's vexing here is HOW it does not complete: -- no errors; -- IDL doesn't exit; -- what's really bad: the license is not released. The last two are "inconsistent with my expectations" (read: WTF) for non-interactive jobs with IDL. Anyone else experienced this type of probl

9/7/2010 8:33:55 PM 0 Ed Hyer <ejh...@gmail.com>
IDL8 CWO issue

Hi All, I found this "bug" that appears in some of my code now, and describing it may be a little confusing. In what follows I refer to a function called "class_name()" that I use to create an instance of the class "class_name" that is defined in class_name__define.pro. I have a lot of object compound widgets where I make a function that (for clarity) has the same name as my compound widget class, and it returns the widget_id: id = class_name(obj=obj, etc) Here I use the keyword "obj" to get the instance of my class called "class_name" that is created in the obj_new('clas

9/7/2010 2:10:00 PM 2 Larry Kneller <larry.knel...@gmail.com>
finite difference method (iteration) in IDL

I have a heat transfer problem that needs to be solved using finite difference method. I have all the equations at all nodal points (it is a 2 X 200 array). I was trying to solve this using microsoft excel but turns out that the numbers I am getting for each nodal points are not reasonable. Anybody have any idea how this could be set up in IDL and solve these equations iteratively using finite difference method. Thanks very much, Mahesh

9/7/2010 3:45:32 AM 1 mahesh <mkmva...@gmail.com>
IDL 8

Hi all, I'm having a problem with the new graphics system in IDL 8.0. When I start up IDLDE and try to use the new graphics routines, none of them compile properly. I checked my path and it includes the default path; I added the idl80/lib folder as well just in case, and they still don't compile. I really don't want to have to compile all these routines by hand... any suggestions? --Gray IDL> print, !version { x86_64 darwin unix Mac OS X 8.0 Jun 17 2010 64 64}

9/6/2010 11:48:02 PM 0 Gray <grayliketheco...@gmail.com>
color tiffs

I can't seem to get tiffs written out in color. Silly, but true. IDL> write_tiff,'title',(array[*,*,2]),/float I get a grey scale image even when I've set device,decomposed=0 and loaded a color table (39). The resulting file is larger compared to the black and white tiffs I produced with bytscl'ing', but it is not in color. Any suggestions? Thanks!

9/4/2010 4:43:22 PM 1 Hawaiianite <jtmcah...@gmail.com>
plotting two dimension grid array

I have a two dimensions data set of FLTARR (num_point, nx , ny), I would like to plot this data into a 2D grid array of nx by ny. I would appreciate any tip. thanks,nixie.

9/4/2010 2:36:57 PM 3 Pom <pom4...@gmail.com>
about the blackbody radiation curve

PRO radiation h=6.626068e-27; k=1.38066e-16; c=2.997925e+10; t=6000; x=findgen(100)*0.0000001; a=2*h*(c^2)*(x^(-5)); if x=0 then begin y=0 endif else begin y=(a)/ (exp((h*c)/(k*x*t))-1) endelse plot,x,y END

9/3/2010 3:37:29 AM 3 panshu Zhao <rochesterz...@gmail.com>
split array

I am planning to split the array 2 dim to 3 dim My data sets are dat=(216,91) to make to (18,12,91) ie., 216=18*12 is it possible to make 2 dim to 3 dim, if possible pl let me know how to split. Thanking you, Kishore

9/3/2010 12:27:00 AM 2 kiss <kishore1...@gmail.com>
Multi-page graphics in IDL 8

We frequently use direct graphics and !P.MULTI to generate graphics output where there are multiple plots on multiple pages. It is not hard to make this work either to the display or to a PS file. When drawing to the display you can wait for a <cr> before moving to the next page. When creating PS, you just draw all the plots to a single file. The PS file can then be easily converted to a multi-page PDF file. With the new Graphics system, I can see how to draw multiple plots in a single window, but not how to create multi-page graphics. Is the concept of multi-page graphics not

9/2/2010 8:33:42 PM 5 "Kenneth P. Bowman" <k-bow...@null.edu>
how to change button names on the dialog_message

Hi, I need to know how to change the button name that appears after the dialog_message is called. For example, if I execute the line below result = dialog_message('testing') a dialog message with an "OK" button will appear. I want to change the "OK" value to something else. Is this possible? Any help is greatly appreciated! Thanks, Truong

9/2/2010 4:28:52 PM 5 Truong Le <truong...@gmail.com>
object association

Hi guys, I'm using IDL 7.0... Do you know if there is a way to use the attributes of an associated object without using GetProperty and SetProperty methods ? An example: ############################# ## Class a FUNCTION a::Init RETURN, 1 END PRO a__define struct = { a, int: 0, str: '' } END ## Class b FUNCTION b::Init, a self.reference=a RETURN, 1 END PRO b::test self.reference.int=9 END PRO b__define struct = { b, $ reference: OBJ_NEW() } END ############################# My code will be something like: a=OBJ_NEW('a') b=

9/2/2010 1:57:58 PM 2 nata <bernat.puigdomen...@gmail.com>
multi plot with superposed axis

Hi, I would like to make a plot containing 4 figures, displayed in 2x2, so that the axis are superposed. (that is to say, in the left column for instance, the top horizontal axis of the bottom figure is stacked to the bottom horizontal axis of the top figure) Is there a way to do that ? Thank you!

9/1/2010 9:31:41 AM 6 bing999 <thibaultga...@gmail.com>
Insert an image in Excel

I am interested in inserting an image into Excel spread sheet, something like ;================ Pro IDL_Write_Excel_Col, FILENAME=FileName ; Create an instance of an Excel Application Object oExcel = obj_new("IDLcomIDispatch$PROGID$Excel_Application") if ~oExcel then return ; Set this property to 0 to hide the Excel Application oExcel->SetProperty, visible=1 ; Obtain a reference to the workbook object and add new oExcel->GetProperty, Workbooks=oWkbks oWkbks->Add oWkbks->GetProperty, 'Book1', Item=oBookData ; Get a reference to the sheets collection oBookD

8/31/2010 8:01:57 PM 1 Maher <malka...@gmail.com>
PUTAST

Hi all, Does anyone have a version of PUTAST (or something similar) that updates SIP distortion coefficients? Thanks! --Gray

8/31/2010 4:52:41 PM 0 Gray <grayliketheco...@gmail.com>
IDL/DLM segmentation fault on reset

Hi, Have an interesting problem for DLM programmers out there. I have a C code for Linux that sets an environment variable using putenv() within a DLM. The code executes as designed but when I issue a .full_session_reset I get a segmentation fault and IDL exits ungracefully. I run the same code (with slightly different calling convention) under Windows without problems. Does anyone know why? Do I need some sort of exit handler for the DLM (similar to IDL_Load for startup)? Haje

8/31/2010 12:34:22 AM 3 Haje Korth <hajeko...@gmail.com>
'loop limit expression too large for loop variable type' error

Hi, My code runs great on small data sets, but I'm trying to use it for larger sets and I've started getting an ''loop limit expression too large for loop variable type' error when I reach the "for j=0, num_ids-1 do begin". Why is this happening and how can I fix it? THANKS! pro fractional_water_extraction_linux ;created by J. Watts (August 2010) . ; input: 1)file with fine spatial resolution data (300 m in this example) ; 2)grid file of coarse resolution (25 km in this example). create using lingen(). ; 3)grid file with fine resolution (create by

8/30/2010 3:36:31 PM 6 Snow53 <jennifer_wa...@hotmail.com>
Workspace Path Variable?

All, Is there a system variable which contains the current workspace path name? Nothing shows up when I run hel, /system_variables ..... Thanks, Bill

8/30/2010 1:57:04 PM 4 tegus <tegusbillhar...@gmail.com>
really dumb IDL8 IDLDE q...

My workbench is in full screen mode and won't reduce (except minimising) under XP SP3. If I put it in un-maximised mode there are no window borders to resize it. So how do I get it to less than full window? (Is it just it's Monday and I've not had enough coffee?) Pete. -- Peter Clinch Medical Physics IT Officer Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net p.j.clinch@dundee.ac.uk http://www.dundee.ac.uk/~pjclinch/

8/30/2010 1:25:33 PM 2 Peter Clinch <p.j.cli...@dundee.ac.uk>
How to read first and last line of an ascii file FAST

Hello group, My data is stored in a bunch of ascii files, each 5-10MB big. Each line represent a sample with a timestamp. I would like to analyse all my files by reading the timestamp from the first and last line of every file. Getting the timestamp from the last line is the issue here. Right now I'm doing it like readf, fid, firstline nlines = FILE_LINES(fnames[i]) skip_lun, fid, nlines-2, /LINES readf, fid, lastline skip_lun is really slow when the files are big and numerous. Does anyone have a tip of I could do this faster? Is there a way to directly point to the en

8/29/2010 3:32:15 PM 2 ahs <agna...@gmail.com>
Does ENVI_FILE_MNG work with 'In Memory' files?

Hi all, I have an IDL function which processes images in ENVI, creating a number of temporary images on the way. I set the /IN_MEMORY keyword for many of these functions to keep the temporary images (which are quite small) in memory. I then delete them at the end of the function using the ENVI_FILE_MNG function. The only problem is...it doesn't seem to work! The files seem to stay in the Available Bands window, and after processing 500 files (and therefore creating around 2500 temporary 'in memory' files) the whole thing crashes! Is there a special way to close files that are stor

8/27/2010 10:57:37 PM 0 robintw <r.t.wil...@rmplc.co.uk>
problems with EOS_GD_EXTRACTREGION

I'm trying to run EOS_GD_EXTRACTREGION and I keep getting a fatal error warning, and then ENVI/IDL crashes. Yikes! I'm not sure what is wrong. My results from EOS_GD_CREATE and EOS_GD_DEFBOXREGION are ok.... Any suggestions? The code: pro hdf_eos_extractpix_region ;find all the hdf-eos files in a folder and open for use path = 'X:\MODIS_GPP\Lena\2006\test' file_array=file_search(path, '*.hdf', count=num_file) file=file_array print, num_file print, file for i=0, num_file-1 do begin file_name=file_basename(file[i], '.hdf') ;print, file_name fid=EOS_GD_OPE

8/27/2010 6:44:39 PM 0 Snow53 <jennifer_wa...@hotmail.com>
Texture filled polygons in the new Graphics environment

Does anyone in here know if there is a way to let new POLYGON function (or similar) in IDL8 produce polygons overlays filled with texture patterns. Or more precisely, filled with warped images like the old POLYFILL procedure. I have started to transfer my GUI routines from direct graphics to the new Graphics system, and suddenly my whole application lost that authentic 1994 look and feel. And I guess, by the time I finish, the user friendlyness should have increased by an order of magnitude. :) Please tell me that I do not have to teach my self the "old" object graphics stuff, and

8/27/2010 4:39:46 PM 0 =?ISO-8859-1?Q?Stian_Solb=F8?= <stian.so...@norut.no>
convert image DN to unique values

Hi, I have an image where all the DNs are 0. I need to change the pixel values to numbers that increase by 1 according to pixel location in the array. For example: 1,2,3,4,5,6,7..... 700. It seems like it should be easy to do... Any suggestions? Thanks!

8/27/2010 2:23:12 PM 0 Snow53 <jennifer_wa...@hotmail.com>
ESRI shape file

Folks I have some (lon, lat, Z) data (data with coordinates) and I want to save this data in .shp (ESRI shape file) file (in GIS it is so easy). Does anyone have any idea? Cheers, Dave P.S. I wish David was here because he has lots of experience in shape files data=EF=81=8C

8/27/2010 1:02:43 PM 0 Dave Poreh <d.po...@gmail.com>
ESRI shape file

Folks I have some (lon, lat, Z) data (data with coordinates) and I want to save this data in .shp (ESRI shape file) file (in GIS it is so easy). Does anyone have any idea? Cheers, Dave P.S. I wish David was here because he has lots of experience in shape files data:-(

8/27/2010 1:03:36 PM 3 Dave Poreh <d.po...@gmail.com>
Making array out of sinc

Hi, I want to create an array out of two sinc function. My code looks like this right now: ;sinc psf x=findgen(201)-100 psfx3=DBLARR(N_ELEMENTS(X)) for i=0, n_elements(x)-1 do begin if x(i) eq 0 then begin psfx3(i)=1 endif else begin psfx3(i)=sin(x(i))/(x(i)) endelse endfor y=findgen(81)-40 psfy3=DBLARR(N_ELEMENTS(y)) for i=0, n_elements(y)-1 do begin if y(i) eq 0 then begin psfy3(i)=1 endif else begin psfy3(i)=sin(y(i))/(y(i)) endelse endfor psf3=psfx3#psfy3 p

8/27/2010 11:00:40 AM 1 sirvival <fpfei...@hs.uni-hamburg.de>
Constrained fit of a straight line: fixed intercept

Hi, I am not sure how easy this problem is, but it sure gave me hell today. I have the following vector arrays: X, Y, & Y_errors. There are 5 elements in each and they do form a nice line describes by Y = A + BX. I need to fit this line with B as a free parameter and constrain A to pass by the the third point. So the problem narrows down to one parameter as: Y = (Y0 - BX0) + BX, whre Y0 and B0 and the third point values (i.e., X[2] and Y[2]). I tried using MPFIT with the PARINFO keyword. It just didn't work. Any ideas? Thanks.... -Joe

8/27/2010 4:36:31 AM 4 Joe Daal <joe.d...@gmail.com>
Zip contents in a folder

Looking for suggestions to use IDL to Zip (small binary) files in a folder. Any Thoughts? Kelly Dean Fort Collins, CO

8/26/2010 7:13:14 PM 0 kBob <krd...@gmail.com>
7-Zip DLL

Looking for ways to use the 7-Zip DLL to compress the contents in a folder with IDL. Any thoughts? Kelly Dean Fort Collins, CO

8/26/2010 7:15:35 PM 3 kBob <krd...@gmail.com>
Rendering context too large ??

Hi guys, I'm working in a new linux 64b machine and I have a problem drawing an IDLgrVIew. % IDLGRSRCDEST::DRAW: Rendering context too large. Maximum size -181406674x32755. % IDLGRSRCDEST::DRAW: Unable to acquire device context. Do you know what's happening ? I don't have this problem in other computers. Thanks, nata

8/26/2010 6:17:20 PM 1 nata <bernat.puigdomen...@gmail.com>
Search across open .pro files

Hi, I am trying to search across ALL .pro files that are open in the editor in IDL 8, but I cannot figure how to do that. "Find" only searches the current document and I cannot get "Search" to return any results. What am i missing about this simple task? Thanks, Haje

8/26/2010 4:30:48 PM 1 Haje Korth <hajeko...@gmail.com>
web apps and idl

Hi I want to write a web application which takes data, processes, graphs etc. on a website. I don't know any web programming and would really like to use idl for the data processing. Does anybody know if there is a tried and tested way of doing this? Can php run an idl program (ie launch something on the linux command line) and use the results? Thanks

8/26/2010 9:54:04 AM 1 a <oxfordenergyservi...@googlemail.com>
Fractal anakysis

What about fractal analysis in the IDL now?

8/25/2010 11:35:48 PM 0 Ivan Katkov <katkov.i...@gmail.com>
IDLDE 8.0 Command Line Errors

After some point (as of yet undetermined) when program is paused using DE, command line stops being interactive. Does not respond to basically anything I throw at it. Anyone getting this?

8/25/2010 10:51:05 PM 6 loopsyel <jones.2...@gmail.com>
widget_table crash IDL8.0

Hi IDL8.0 crashes when I try editing the values of a widget_table. It doesn't seem to happen under windows. Does anyone experience the same problem (test code below)? My version: { x86 linux unix linux 8.0 Jun 18 2010 32 64} Test code: pro test_event,ev end pro test base=widget_base(title='tst') table=widget_table(base,value=fltarr(4,2),/editable) widget_control,base,/realize xmanager,'test',base,/no_block end

8/25/2010 9:15:24 AM 1 Wox <s...@nomail.com>
mode of a continuous distribution

Hi all, I have an array of data from a continuous distribution (non-Gaussian), and I'd like to find the mode. I have two ideas: 1) an iterative histogram method, where I find the max for smaller & smaller binsizes until it converges; 2) some sort of kernel density estimation method to estimate the distribution, and then find the max from that. Anyone implemented this sort of thing before? Any suggestions? --Gray

8/24/2010 9:32:45 PM 1 Gray <grayliketheco...@gmail.com>
Help on text data

Folks I am reading some text data (I don=92t know how many) like this: pathName=3D"d:\p\" List =3D findfile(pathName+"*.dat") nosFiles=3DN_ELEMENTS(List) data =3D ptrarr(nosFiles) for i =3D 0, nosFiles - 1 do begin x=3Dread_ascii(list[i]) data[i] =3D ptr_new(x) endfor I want to put this data in a string like this: names =3D ['data[0]', ' data[1]', ' data[2]',=85] to proceed David=92s name_selctor. I do not know how to do that. Any help highly would be appreciated Cheers, Dave

8/24/2010 11:51:49 AM 6 Dave Poreh <d.po...@gmail.com>
IDL/ENVI SPOT-5 Level 1a (DIMAP format) - simple(?) gain problem

Hi all, It's a Sunday afternoon and I'm pulling my hair out trying to do something I thought was going to be relatively easy, but instead has turned into a bit of a nightmare for a beginner at IDL/ENVI. I've got a geotiff of SPOT-5 level 1a imagery that I bring in by opening up the supplied *.DIM file so that I get most of the important metadata (e.g., band wavelengths, standard gains and offsets, etc). So, the question is this: how can I apply separate gains and offsets to each of my 4-bands, and then write those new results together into a separate file, or even the original f

8/22/2010 4:31:05 PM 1 D2 <dennis.d...@gmail.com>
Matching 2 lists

Hi there, I'm wondering if someone can help me. I'm trying to match two lists of stars together. Where I differ from the standard 1-1 match that match_2d.pro does so well is that I would like to be able to compute a 1-many match. I.e find any star in list B that is a possible match to a single star in list A not just the closest. Many thanks for any help that someone can provide David

8/21/2010 3:11:47 PM 2 David Baker <de...@le.ac.uk>
PLOTS and the new PLOT

Hi all, Can anyone tell me how the new PLOT() handles scalars/1-element arrays for X and Y? Or do you still have to use PLOTS? If you have a graphic created with PLOT(/buffer), will a subsequent call to PLOTS go on the right plot? Or will it try to go in a window? Thanks! --Gray

8/21/2010 12:13:36 PM 1 Gray <grayliketheco...@gmail.com>
jpeg exif

Just curious, are there are any existing jpeg - exif I/o routines out there? I've googled around, and other there doesn't seem that there is much interest in it. cheers, bob

8/20/2010 6:07:14 PM 2 "R.G. Stockwell" <noem...@please.com>
WRITE_FITS error

% WRITEU: Error encountered writing to file. Unit: 100, File: HeI__interp.fits.gz Input/output error % Error occurred at: WRITEFITS 243 /Applications/itt/idl70/lib/ astrolib/pro/writefits.pro Any suggestions?? --Gray

8/20/2010 1:31:11 PM 0 Gray <grayliketheco...@gmail.com>
FITS WCS routines

Does anyone know of a good IDL implementation or wrapper of up-to-date routines to deal with world coordinate systems in FITS files? The ones in the astronomy library aren't sufficient - in particular, I need something that can deal with a TNX coordinate system (tangent point plane with distortions). Basically exactly like the astronomy library's ADXY and XYAD routines, but that can deal with the full WCS standard. Thanks, -Jeremy.

8/19/2010 7:51:12 PM 0 Jeremy Bailin <astroco...@gmail.com>
Workspace command history

After resisting for many years I am finally starting to use the workbench. I have setup different workspaces for different projects and I was wondering if there was a way to have IDL maintain a separate command history for each of the different workspaces. Thanks, GD

8/19/2010 6:35:22 PM 0 gnarly dude <gnarlypl...@cox.net>
exporting floats

It may sound easy, but i don't figure out how it works. I want to export a floating point variable I produced in IDL to use it in a GIS. Everything I export through the iTools ends in integers, but I need to keep the original float values! who can help me? Martin

8/19/2010 2:45:11 PM 4 matin <mar...@bier-mail.de>
IDL syntax highlighting in other documents

Hello all, I'm writing a lot of IDL code for my university research projects and my PhD thesis and therefore want to include some of the code in other documents. I'm writing these documents mainly in LaTeX and HTML. I have found a number of utilities that will perform syntax highlighting on code for me (such as Pygments - http://pygments.org/) but none of them seem to support IDL. Does anyone know of anything like this that does support IDL? I was thinking that I might have to write one, but I'm not sure if my skills are up to that! Best regards, Robin Wilson PhD Stu

8/19/2010 1:39:40 PM 0 Robin Wilson <ro...@rtwilson.com>

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Embedding several ruby interpreter instances in C?
30 min. 16 sec. ago

error regarding missing mclmcrrt78.dll
31 min. 44 sec. ago

More Android "openness"
34 min. 7 sec. ago