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5 Replies and 1722 Views
ENVIRaster 1722 5
Started by Deleted User
I am new to object orientated programming and am trying to do batch processing using ENVI 5.0 functions in IDL 8.2.3.
My intention is to spatial & spectrally subset a lot of geotiffs. At the moment I am subsetting into .sav files but would like to create a new set of geotiffs.
I think that I should be creating new ENVI rasters. However when I try to use ENVIRaster() I get an error message.
ENVIRASTER::INIT: Incorrect number of arguments.
even when using the exampe provided o...
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5 |
1722 |
10 Sep 2014 08:30 AM |
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0 Replies and 1977 Views
different between IDL8.3 and IDL7.1 1977 0
Started by Deleted User
there is the same code which can be run in IDL7.1 but couldn't in IDL8.3
CODE:
PRO TMP1
wBase = WIDGET_BASE()
wAx=WIDGET_ACTIVEX(wBase,'{8E27C92B-1264-101C-8A2F-040224009C02}')
WIDGET_CONTROL, wBase, /REALIZE
END
what's the matter with "widget_activex"
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0 |
1977 |
10 Sep 2014 12:49 AM |
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2 Replies and 1492 Views
Code runs in 8.2, gives syntax error in 8.3 1492 2
Started by Deleted User
I realize that the context of this line is missing, but I'm puzzled why this line of code:
pfss_restore, pfss_time2file('2003-04-05', /ssw_catalog, /url,version=2)
... runs OK in IDL version 8.2 but gives me a syntax error in version 8.3. It appears to have something to do with the parens, but I'm at a loss beyond that. pfss_restore and pfss_time2file are both .pro files.
Any thoughts
Thanks,
Bill Arden
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2 |
1492 |
09 Sep 2014 01:55 PM |
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0 Replies and 1641 Views
WIDGET_ACTIVEX question 1641 0
Started by Deleted User
hi,my code "control=WIDGET_ACTIVEX(controlBase,'{232E456A-87C3-11D1-8BE3-0000F8754DA1}')”
but at the location "WIDGET_CONTROL,tlb,/REALIZE"prompt question:Creation of widget unsuccessful
why
my IDL version is IDL8.3 and win7 system
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0 |
1641 |
09 Sep 2014 06:14 AM |
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2 Replies and 1701 Views
Butterworth filter order and cutoff frequency 1701 2
Started by Deleted User
Hi,
I am moving Matlab code to IDL which uses Butterworth filtering, and see that IDL provides this functionality via its butterworth function (http://www.exelisvis.com/docs/BUTTERWORTH.html). It is hard to tell from the documentation whether this is really the Matlab equivalent (http://www.mathworks.com/help/signal/ref/butter.html). Furthermore, the filter order and cutoff frequency are calculated with another function in Matlab (http://www.mathworks.com/help/signal/ref/buttord.html), wh...
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2 |
1701 |
08 Sep 2014 10:55 AM |
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2 Replies and 1611 Views
Access to sftp 1611 2
Started by Deleted User
Hi all!
I'm trying to get access to secured ftp with IDLnetURL but it seems impossible to me as I am rather novice in programming. Using IDL 8.2.1 in Windows and the same syntax written in url_docs_ftp_get.pro:
oUrl = OBJ_NEW('IDLnetUrl')
; Set verbose to 1 to see more info on the transaction
oUrl->SetProperty, VERBOSE = 1
; Set the transfer protocol as ftp
oUrl->SetProperty, url_scheme = 'ftps'
; The FTP server
oUrl->SetProperty, URL_HOST = '193.105.155.71'...
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2 |
1611 |
05 Sep 2014 02:29 AM |
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1 Replies and 1257 Views
odbc question 1257 1
Started by Deleted User
I wrote codes as follow:
{
mydata=obj_new('IDLdbDataBase')
mydata->Connect,datasource='MS Access Database;DBQ='FILEPATH
myRecord=OBJ_NEW('IDLdbRecordset',mydata,TABLE='table1')
myRecord->AddRecord,1,'aaa'
}
and the data types are 'number','short text' in my database
however, the program prompt: IDLDBRECORDSET::ADDRECORD:ODBC &91Microsoft&93&91ODBC Microsoft Access Driver&93String data,right truncated
how can I do
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1 |
1257 |
03 Sep 2014 09:08 PM |
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1 Replies and 1410 Views
Formatting of string in text() 1410 1
Started by Deleted User
hello,
I am having trouble formatting strings in the text() function. Maybe a bug, maybe I am just missing something.
I have a hash where i want to format a string so "key : value" with each field the same size and the ":" line up. See code below. Now, the strlens are the same and when printed to the console, everything lines up. But not within the text() box on the image. Why not Is the font scaleable or something Am I missing something Thanks
data = ordere...
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1 |
1410 |
02 Sep 2014 12:51 PM |
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0 Replies and 1400 Views
MIN MAW NDVI 1400 0
Started by Deleted User
HI
I'm working with layer stracking NDVI (10 years) I want to determine NDVI MAX, MIN, MEAN (Images) In order to determine vegetation condition index
thank you
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1400 |
02 Sep 2014 10:25 AM |
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1 Replies and 3608 Views
Segmentation fault (core dumped) when running an idl code 3608 1
Started by Deleted User
Howdy! There is a running fault problem.
I used the GRID3 function to grid the irregularly scattered points (several million points) to regularly 3D gridded points (longitude, latitude, altitude). The code related is only:
lonout = findgen(46)*8
latout = findgen(46)*4-90
preout = 210.0-findgen(42)*5
lonout = lonout/360.
latout = latout/90.
preout = preout/210.0
thout = GRID3(lonIn,latIn,prIn,thDay,lonout,latout,preout,/GRID) ;thDay is thevariable needed to grid
The...
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1 |
3608 |
29 Aug 2014 10:49 PM |
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1 Replies and 1736 Views
Subset (resize) image with an ROI and save to disk 1736 1
Started by Deleted User
I am having some problems. I want to load a number of images and clip out a small rectangle defined by an ROI, then save this smaller file to disk.
When I subset using an ROI rather than a sub_rect, the file is not reduced (it masks the raster rather than clipping it).
Is there a why to clip (subset) with an ROI If not, is there a way to get the sub_rect from an ROI to I can subset using the sub_rect method
Here is the code I am trying to use (I cut out most of the extraneous stuff, e.g., file...
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1 |
1736 |
27 Aug 2014 03:16 PM |
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0 Replies and 1575 Views
Trouble-shooting IDL to IDL child process 1575 0
Started by Deleted User
Hi, folks. Relative IDL newbie here.
I am using code (not written by me) using the split_for.pro routine for multi-threading:
http://sciama.pbworks.com/w/page/40677516/Parallelizing20IDL20routines
The code runs fine in single-threaded mode (bypassing split_for), but does not run in multi-thread mode. What is particularly frustrating is there are not obvious errors on the console. I think something is going wrong within the child process, but the error seems to be invisible on the parent pr...
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0 |
1575 |
23 Aug 2014 11:49 AM |
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0 Replies and 1712 Views
Scatterplot with colorbar 1712 0
Started by Deleted User
Hello,
If i generate a scatterplot with the keyword magnitude then the colorbar is generated using the Y coordinates not the magnitude.
How can i generate a colorbar for the magnitude Only by hand Is This a bug
example:
t=scatterplot(2.*randomu(seed, 1000), 1.*randomu(seed, 1000), symbol='o', /sym_filled, rgb_table=13, magnitude=5.*randomu(seed, 1000))
ct= colorbar(target=t, /border, orientation=1)
note that the colorbar indicates values from 0 to 1 wich is the Y range while it should show...
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0 |
1712 |
21 Aug 2014 02:38 AM |
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1 Replies and 1865 Views
PLOT routine in IDL 8.3 changes font to greek when the axis label is an exponential. 1865 1
Started by Deleted User
There seems to be a new feature/bug in IDL 8.3, when using the PLOT routine with axis-labels that are typeset as exponentials. In older IDL versions (in my case IDL 8.2), the exponential was typeset as a number, a bullet (•) and then the exponential, e.g. '1.0•106'. Since IDL 8.3 it is typeset as a number, a times-symbol (×) and then the exponential, e.g. '1.0×106'. As a consequence it seems that all following text is in the greek font. However, this seems to be only the ca...
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1 |
1865 |
18 Aug 2014 01:40 PM |
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0 |
1424 |
16 Aug 2014 06:47 AM |
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0 Replies and 1493 Views
.pro are read-only files 1493 0
Started by Deleted User
I just downloaded IDL version 6.2 onto a computer running Windows 7. The .pro files I had been using on my previous machine are being opened as read-only files. I have gone to preferences and the box for "Open Files Read Only" is not checked. Any new files that I write can to be saved and edited without any problem, even after I restart IDL. I am not sure what the problem is here.
Any help is appreciated,
Anthony
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0 |
1493 |
14 Aug 2014 02:29 PM |
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1 Replies and 3035 Views
Attempt to call undefined procedure/function: &39;LEGEND&39; 3035 1
Started by Deleted User
Hi,
I'm using IDL 8.3 to plot.
Everything is good but legend function fails.
The example is like this,
IDL> theory = SIN(2.0*FINDGEN(201)*!PI/25.0)*EXP(-0.02*FINDGEN(201))
IDL> observed = theory RANDOMU(seed,201)*0.4-0.2
IDL> plot1 = PLOT(observed, 'b2', NAME='Observed')
Loaded DLM: PNG.
IDL> plot2 = PLOT(theory, /OVERPLOT, 'r2', NAME='Theory')
IDL> leg = LEGEND(TARGET=&91plot1,plot2&93, POSITION=&91185,0.9&93, $
IDL> /DATA, /AUTO_TEXT_COLOR)
Compiled module: LEGEND...
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1 |
3035 |
11 Aug 2014 06:22 PM |
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4 Replies and 1769 Views
Opening NITF files --> ENVI not storing geographic information 1769 4
Started by Deleted User
I am trying to run ENVI's FX image segmentation doit on QuickBird NITF files, but the resulting shapefile contains no information about geographic location or projection. The lat/lons appear as pixel number values from the lower left. ENVI appears to have trouble decoding the information stored in NITF files. Is there a better way to open NITF files My code is below.
CD, CURRENT=c & PRINT, c
files=FILE_SEARCH(c '\' '*.ntf') ;
i=0 ; will eventually batch these files, just trying to...
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4 |
1769 |
11 Aug 2014 11:00 AM |
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0 Replies and 1564 Views
IMAGE function 1564 0
Started by Deleted User
Does anyone know of the correct way to display a true-color image using the IMAGE function I am attempting to do this with a 3D rgb image array , but I keep receiving the following error:
"ROTATE: Only 1 or 2 dimensions allowed: ARG1"
What I don't understand is why 'IMAGE' keeps trying to rotate my image. The x and y dimensions of my image array and the lat/lon arrays I'm using are the same.
-Steve
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0 |
1564 |
04 Aug 2014 12:17 PM |
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0 Replies and 1264 Views
IDL grib_api problems? 1264 0
Started by Deleted User
Hi guys,
When I use the grib_api with windows IDL 8.3, I found there are some problems about grib api, such as:
1when you set work directory other than default work directory, IDL will crash:
cd, 'D:\data'
f = GRIB_OPEN(filename)
h = GRIB_NEW_FROM_FILE(f)
...
2When I set the GRIB_DEFINITION_PATH environment, IDL will always change it to 'C:\Program Files\Exelis\IDL83\resource\grib\share\definitions' after call grib functions.
3when I read a second_order packing grib file, the return val...
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0 |
1264 |
04 Aug 2014 10:15 AM |
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