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2 Replies and 1299 Views Simple question on path  1299  2 Started by  Deleted User Hello, I am compiling running an ABC.pro in a given Linux directory. ABC.pro calls other procedures, lets say 123.pro, which are located in the same directiory as ABC.pro. At run time, I get an error saying that the '123' variable is undefined. How can I solve this problem I went ahead and opende the 123.pro and compiled, then went back to my ABC.pro and it went well. How can I avoid the manually compiling 123 (or other procedures needed by ABC.pro) on the fly Thanks!
2 1299
03 Feb 2008 01:35 PM
0 Replies and 1142 Views read HE5T_NATIVE_INT8 data type from HDF5 file using IDL  1142  0 Started by  Deleted User does any one have experience about how to read HE5T_NATIVE_INT8 data type from HDF5 file using IDL. When I use HDFview to open the file, the missing data is filled with -127, but after I use idl to read the data, all the missing data is filled with 0, which is a problem since valid data range is 0-100.
0 1142
29 Jan 2008 03:23 PM
0 Replies and 1239 Views FTP access in idl 6.3  1239  0 Started by  Deleted User how to access ftp using idl6.3 I want to grab an image thro' ftp and show it in the draw widget in my application. Can ne one help me out with this -Regards -Ritu
0 1239
29 Jan 2008 12:41 AM
1 Replies and 1127 Views looking for help in writing a short code for water correction in idl/envi...  1127  1 Started by  Deleted User Hi all My name is tamir a PhD student on the cross road of marine biology and remote sensing. I’m currently looking for someone with IDL knowledge to write a short code for a procedure I’m trying out. Is short and shouldn’t take long to undertake. If anyone wants to rise to this challenge (massive favour for me) please contact me at the below address. Many thanks for listening. Tamir
1 1127
28 Jan 2008 04:59 AM
0 Replies and 1234 Views Where is IDL VM  1234  0 Started by  Deleted User I have dowloaded the IDL package for Linux from the dowload area and I followed given instructions to install it. However, I was not able to find where is the IDL VM that is claimed to be inside this package. Can someone give me some help please. Thank you very much
0 1234
25 Jan 2008 01:47 PM
1 Replies and 1277 Views On-the-fly color table changes  1277  1 Started by  Deleted User Sorry if this is a FAQ, but I haven't been able to find an answer. We have old Solaris systems here, which have a lovable feature of allowing color table changes to immediately, on-the-fly, affect the color of images. For example, one brings up an image in IDL, then runs xloadct. Changes to the color table using xloadct sliders immediately affect the colors in the image. I supose this is because of the old 8-bit pseudocolor visual. Is it possible to achieve this with newer X Window Syst...
1 1277
23 Jan 2008 10:38 AM
1 Replies and 1094 Views How to add rows and columns to an array.  1094  1 Started by  Deleted User I like to add rows or columns of zeros to an existing array. The rows or columns will come at the beginning or end of the array and not in the middle. What is the easiest way to do this
1 1094
22 Jan 2008 08:26 AM
1 Replies and 1161 Views AVL Binary Tree Implementation?  1161  1 Started by  Deleted User Hey there, I've searched but haven't found anyone yet who has implemented algorithms for working with AVL binary trees in IDL. I was wondering if anyone out there in the community has done so and would be willing to share, or if there's a better way through hooking IDL to an external AVL tree library, etc. Thanks very much for any ideas or tips.
1 1161
21 Jan 2008 04:31 PM
1 Replies and 1456 Views Global Curve Fitting  1456  1 Started by  Deleted User Does anybody know if it is possible to fit multiple data sets simultaneously in IDL. I am currently using 'curvefit' to sequentially fit 3 datasets, but these datasets influence eachother, so I am looking for a more appropriate function. It is basically a 3 compartment model, with interaction from one main compartment with the two others, but the two others do not interact. I have time varying data for all 3 compartments, and I want to fit the kinetic parameters of the 3 compartment model wit...
1 1456
17 Jan 2008 02:30 AM
1 Replies and 1449 Views Simple question: Vector Fields and the length of corresponding vector arrows  1449  1 Started by  Deleted User I am working on a project in which we would like to compare IDL generated vector fields based on their magnitude, but the magnitude(represented by length of vector arrow) of each vector visually depends upon the maximum magnitude in each dataset. This is a problem because on one vector field a value of 20 could be the longest arrow (fi highest magnitude in set), but on the next vector field only be half the maximum size (if the magnitude max was 40, for example). Is there a way to set a f...
1 1449
16 Jan 2008 01:19 PM
0 Replies and 1323 Views How to calculate FWHM of 3D image  1323  0 Started by  Deleted User Hello, I am working on 3D image processing and caculating the FWHM (curvefitting). But some times, I cannot get the 'good ' results, for example, the voxel size is 1.3*1.3*1.3 mm^3, but for some points in the image, the corresponding FWHM is 1 mm. It isn't right. How can I deal with that. thanks
0 1323
16 Jan 2008 12:53 PM
0 Replies and 1472 Views How to calculate FWHM of 3D image  1472  0 Started by  Deleted User Hello, I am working on 3D image processing and caculating the FWHM (curvefitting). But some times, I cannot get the 'good ' results, for example, the voxel size is 1.3*1.3*1.3 mm^3, but for some points in the image, the corresponding FWHM is 1 mm. It isn't right. How can I deal with that. thanks
0 1472
16 Jan 2008 12:53 PM
1 Replies and 1258 Views Displaying multiple images with one program  1258  1 Started by  Deleted User Hello, all! I am enrolled in a Satellite Remote Sensing class this semester, but I'm brand new to IDL. We have an assignment given to us to display 5 different images; however, I can only get them to display in the same window every time. How do I get multiple images to display using one program
1 1258
16 Jan 2008 08:47 AM
1 Replies and 1311 Views Naming variables from read-in strings  1311  1 Started by  Deleted User Is there a way to read in a string, use it for a variable name, and then refer to that variable name inside IDL I see that there is a function IDL_VALIDNAME that can tell me if a string can be used for a valid IDL varibale name. However, once this is validated, how do I use this string as a variable Thanks, -Marcos
1 1311
15 Jan 2008 06:20 PM
1 Replies and 4437 Views reading matlab-files with IDL  4437  1 Started by  Deleted User Hello everybody, I have .mat files from Matlab R14 (= Matlab 7). Is there a possibility to read these files directly with IDL Is there a routine to do this Or do I have to convert them to ASCII or another format first Thank you for your help! All the best Markus Bachmann
1 4437
15 Jan 2008 10:03 AM
1 Replies and 4466 Views Atan2 function?  4466  1 Started by  Deleted User I've noticed IDL contains the standard Atan function but does anyone know if it contains the Atan2 function for help in determining what quadrent is being used
1 4466
14 Jan 2008 11:03 AM
2 Replies and 1110 Views interface between ITK and IDL  1110  2 Started by  Deleted User A proposal for creating an interface between ITK and IDL has been posted in the Wiki at: http://www.itk.org/Wiki/Proposals:IDL_Interface We are looking for your feedback regarding what kind of functionalities you will find useful in this interface. Note that we are considering the options of: a) Making possible to get ITK functionalities from IDL b) Using IDL from applications based on ITK We would like to hear from you regarding the features that you will find more ...
2 1110
10 Jan 2008 09:20 AM
1 Replies and 1627 Views Writing SEG-Y file or How to Save an Object in a binary file ?  1627  1 Started by  Deleted User Hi, I have the following question. I open a SEG-Y file using the code available on ITTVIS website. So let says that I want to correct some values in the file and save it. I'vbe tried the following but got an error... I'm not sure how to save the information oSEGY = OBJ_NEW ('IDLffSEGY') ... doing my stuffs... ... OPENW, lun, dummy_output, /GET_LUN WRITEU, lun, oSEGY FREE_LUN, lun END WRITEU: Expression containing object references not allowed in this context: OSEGY. Any hel...
1 1627
10 Jan 2008 09:17 AM
3 Replies and 1246 Views .sav files in IDL 7.0 and with Bridge  1246  3 Started by  Deleted User I would like to package my applications in a .sav file. 1st problem is that IDL7.0 seems to miss some procedures when creating a sav file (specifically the GET_SCREEN_SIZE() function) while this works in idl 6.4. Should I be using something other than Build Project in the eclipse IDE 2nd problem. My Application calls several IDLbridge processes. When running these from a .sav file the idl bridge process is unable to find and compile procedure code (source code) even though these are in th...
3 1246
10 Jan 2008 08:55 AM
1 Replies and 1393 Views FUNCTION RECOGNITION  1393  1 Started by  Deleted User We are developing a small rutine that selects and opens an envi file, but during the execution the compiler sends this message: Variable is undefined: FID. Execution halted at: ENVI_GET_DATA The ENVI_GET_DATA instruction is inside a FUNCTION which is not in the main rutine programe. In some others ocassions a different error message apears: unable to allocate memory: to make an array Thanks for your advising !
1 1393
09 Jan 2008 09:39 AM
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