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0 Replies and 889 Views
IDLgrROI 889 0
Started by Deleted User
&160;
Hello everybody!
I would like to display some polylines in an IDLgrView using an IDLgrROI. My xyz data for the vertex are set when i create the object, using syntax done on the help :
Obj = OBJ_NEW(&160;'IDLgrROI' &91, X&91, Y&91, Z&93&93&93 &91, PROPERTY=value&93)
But later, i need to update data values, adding vertex or modifying others, the IdlgrROI->SetProperty do not let the users to modify the original value. I need to destroy and recreate the IdlgrROI object to display...
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889 |
19 Mar 2009 03:02 PM |
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1 Replies and 1047 Views
Linear Mixture Modeling? 1047 1
Started by Deleted User
hi everyone,
I am not too familiar in this area, but was looking for a way to perform LMM, Linear Mixture Modeling. There is no button to push to perform this in ENVI, but maybe a script with the calculation out there somewhere It would be applied to IKONOS data,
Thanks for any information,
Anne
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1 |
1047 |
19 Mar 2009 02:18 PM |
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1 Replies and 1381 Views
modis conversion toolkit undefined EOS_GD_CLOSE 1381 1
Started by Deleted User
Hi all,&160;
I am trying to use the MCTK programmatically with IDL, I cut and paste in IDL the Level 3 grid example from the MCTK user guide,
I compile and run the code, but I experiment the error:
MCKT ERROR:
Unable to attach specified grid.
Check name against HDF file contents.
And then, appear the warning:
Attempt to call undefined function/procedure: `EOS_GD_CLOSE`.
&160;
&160;
&160;
;Level 3 grid example
pro test_batch_modis_conversion_grid
compile_opt idl2
modis_grid...
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1 |
1381 |
19 Mar 2009 08:38 AM |
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0 Replies and 1142 Views
Pre-defined color tables pull-down in iImage is empty 1142 0
Started by Deleted User
When I fire up iImage from IDL 7 (from the IDLDE), and click on Edit Palette, the pull-down menu for selecting a pre-defined color table (Load Predefined) is empty.&160; Why is that&160; How do I get the built-in color tables into iImage
Thanks,
==Leonard
&160;
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1142 |
17 Mar 2009 02:01 PM |
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0 Replies and 1284 Views
HDF_SD_SETCOMPRESS: Unable to set compression. 1284 0
Started by Deleted User
This isn't a big deal, but it seems idl7 doesn't like setting hdf compression, if a dimension is unlimited.&160;
IDL Version 7.0.1 (linux x86_64 m64). (c) 2008, ITT Visual Information Solutions
....
IDL> SDinterface_id = HDF_SD_START('compress.hdf', /CREATE)
Loaded DLM: HDF.
IDL> SDdataset_id = HDF_SD_CREATE(SDinterface_id, 'dataset1', &919,0&93, /long)
IDL> HDF_SD_SETCOMPRESS,SDdataset_id,4,EFFORT=7
HDF_SD_SETCOMPRESS: Unable to set compression.
Execution halted a...
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0 |
1284 |
16 Mar 2009 03:47 PM |
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1 Replies and 1123 Views
Extract part of image of an idlgrimage 1123 1
Started by Deleted User
Hi everybody
I would like to know what is the best way to extract a small portion of an image in an array of an IDgrImage without using IDLgrImage->Getproperty , data = data.
For example my image (5000*7000)&160;has been loaded in my idlgrimage, ans i would like to extract for example a 50*50 portion of this image in an array&9150,50&93.
I know i can use IDLgrImage ->GetProperty, data = data & data = data&91*,50,50&93
But, because of memory troubles caused by the size of my image, i wou...
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1 |
1123 |
09 Mar 2009 09:10 AM |
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0 Replies and 1267 Views
Setting Odd/Even numbers and decimal places in widgets 1267 0
Started by Deleted User
I'm currently using widget_slider (and widget_sslider), but I need to constrain them to only odd numbers (so I can set the kernel size for processing later in my user function). How does one make sure that such widgets only return (and display) either odd or even numbers I can't imagine I'm the first person to need to do this!
&160;
In a similar fashion I'm using cw_slider and need to return numbers with just one or two decimal places. How can I make sure the widget only display and returns ...
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0 |
1267 |
06 Mar 2009 10:40 AM |
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0 Replies and 1016 Views
IDL linfit error message 1016 0
Started by Deleted User
Dear IDL community,
I am creating a procedure that applies the linfit function to linearly interpolate vectors with varying numbers of indices. I have found that the following warning message is issued whenever the vectors are of length 2:
Program caused arithmetic error: Floating illegal operand
Does anyone know of the cause for this, and how to disable the warning Presumably the error is zero, so somehow the error must end up getting divided&160;Thanks.
Steve
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0 |
1016 |
05 Mar 2009 10:38 AM |
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0 Replies and 1127 Views
Does IDL CMYK PostScript output work? 1127 0
Started by Deleted User
I have been trying to convert some PostScript files that use the RGB colorspace into CMYK PostScript.&160; IDL purports to support the creation of CMYK PostScript with the /cmyk keyword to the device command.&160; I can produce images using that keyword and get no error messages.&160; The images, viewed in a PostScript previewer look fine but if I use the "identify" routine from ImageMagick it lists the colorspace as RGB.&160; I have been able to create CMYK images through other me...
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0 |
1127 |
04 Mar 2009 02:13 PM |
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0 Replies and 1171 Views
netcdf attribute read 1171 0
Started by Deleted User
Hi,
I'm trying to read the attributes from a netcdf file, that based on ncdump, are equal to:
units = "10^-9 V/V air"
when reading via ncdf_attget, instead of having it into type string, IDL thinks it's a number and converts it into a byte array. How can I force ncdf_attget to read a string, no matter what the data of the attribute is
Thanks!
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0 |
1171 |
04 Mar 2009 11:56 AM |
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1 Replies and 989 Views
BYTSCL bug!? 989 1
Started by Deleted User
I've recently been converting some IDL code to Java and found this
problem: BYTSCL returns different results based on the data type you
pass in. For example, the two lines below return different results for
9065.
print, bytscl(&914124, 9065, 18946&93, top = 2)
print, bytscl(FLOAT(&914124, 9065, 18946&93), top = 2)
That's fine. Later on I found the explanation in IDL's documentation
"For floating-point input, each value is scaled using the formula (Top
...
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1 |
989 |
03 Mar 2009 10:16 AM |
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0 Replies and 1175 Views
dual iTool interfaces without creating a new widget interface 1175 0
Started by Deleted User
I'm fairly new to IDL GUI design. I was wondering if there is an easy way to extend the iTool system to have all on the same window:
1. a typical iSurface plot
2. a typical iPlot plot
3. custom buttons
From reading the IDL help, it seems adding the buttons in a user interface panel to an iSurface window, say, would be easy (like example4tool,example4_panel). It's adding a second iTool below the iSurface, the iPlot, that I'm wondering if would be a simple addition, or if I would have ...
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0 |
1175 |
26 Feb 2009 12:48 PM |
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4 Replies and 2351 Views
Export variable to txt file 2351 4
Started by Deleted User
How can&160;I export array variable to txt file, so excel can read it Please Help!! Thanks
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4 |
2351 |
26 Feb 2009 07:28 AM |
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0 Replies and 1277 Views
IDL path not set correctly when executing .sav file 1277 0
Started by Deleted User
When I run my program in the Workbench at the IDL>&160; command line, it runs fine. When I build my project and create a .sav file, and I click on the .sav file I get an error, ‘Attempt to call undefined function/procedure READ_BMP’.
My build does a .RESET_SESSION before building, and it shows a RESOLVE_ALL. The build does not produce any error messages.
I checked the value of !path when IDL Workbench first starts, and it includes the folder where the read_bmp.pro file is ( C:\Program...
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0 |
1277 |
23 Feb 2009 02:46 PM |
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0 Replies and 1319 Views
Map contour data that is projected 1319 0
Started by Deleted User
I have a data that is stored on a 95km (137x81) polar stereopgraphic grid.&160; How do go about contouring this data on top of a map&160; I have had no luck trying to get this to work.&160; I can contour the data normally, but cannot get a contour on top of a map that is /STEREOGRAPHIC projection.&160; I have lat/lon pairs for the gridpoints of the data.
PLEASE HELP
&160;
Thank You.
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0 |
1319 |
23 Feb 2009 08:22 AM |
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0 Replies and 1236 Views
HDF_SD_GETDATA 1236 0
Started by Deleted User
In my program, I use the HDF_SD_GETDATA to retrive the data from MODIS L1B image. The program runs successfully in IDL 6.3, but in IDL 7.0, The error message is 'HDF_SD_GETDATA: Unable to read the specified HDF-SD slice'&160; when I read NASA's MODIS L1B (&160; file name for example: MOD021km.A2008345.0355.005.2008345221404.hdf) image. Would ypu mind to tell me whether are&160; there function/precedu&160; in IDL 7.0 to get the MODIS L1B data.
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0 |
1236 |
23 Feb 2009 12:52 AM |
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0 Replies and 1430 Views
HDF_SD_GETDATA 1430 0
Started by Deleted User
In my program, I use the HDF_SD_GETDATA to retrive the data from MODIS L1B image. The program runs successfully in IDL 6.3, but in IDL 7.0, The error message is 'HDF_SD_GETDATA: Unable to read the specified HDF-SD slice'&160; when I read NASA's MODIS L1B (&160; file name for example: MOD021km.A2008345.0355.005.2008345221404.hdf) image. Would ypu mind to tell me whether are&160; there function/precedu&160; in IDL 7.0 to get the MODIS L1B data.
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0 |
1430 |
23 Feb 2009 12:52 AM |
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1 Replies and 1268 Views
Passing Values... 1268 1
Started by Deleted User
I have to rountinely read in a substantial amount of data (~60 parameters, each an array of ~1000 values) and then plot various subsets of it, fit curves, etc.&160; Right now, every plotting or fitting routine I generate has the same ~200 lines copied and pasted into it to handle this input and subset defining.&160; It's a pain when the format of my dataset is modified and I try to update my results, I have to hunt though all my programs to make the same teaks to the input routine.&160; I'd l...
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1 |
1268 |
20 Feb 2009 11:58 AM |
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2 Replies and 1082 Views
halting execution of a program 1082 2
Started by Deleted User
Hello,
I am trying to stop execution of a program at a breakpoint. I do not want the program to continue running past the breakpoint. Does anyone know how to do this All toolbar options I've tried (and the .out command) resumes running of the program past the breakpoint, which in my case causes terrible errors.
Any tips would be greatly appreciated. Thanks.
Steve
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2 |
1082 |
19 Feb 2009 10:08 AM |
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2 Replies and 1310 Views
result is rounded, but why? 1310 2
Started by Deleted User
hi all,
i am a newbie in using idl and face a problem. it is a quite simple question and i hope anybody of you can help me.
when i do a simple calculation like: m=float(8054/7). i got the result 1150.00, but the correct results is 1150.57. what is the reason for this and how can i manage this.
thanks in advance,
christine
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2 |
1310 |
19 Feb 2009 04:09 AM |
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