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1 Replies and 1863 Views
How to use serial.dlm(dll) for control the device via RS 232? 1863 1
Started by Deleted User
We need your help about the serial.dll. (Currently, I use window XP and IDL 6.3)
We downloaded serial.dll from RSI and placed it right folder(C:\\RSI\idl6.3\bin\bin.x86).
Now, we need some examples how to use it for control the device via RS232. This is the first time to use IDL to control the device. We have tested via hyper terminal to control the device and it is working well. If anyone has or know any example or reference for this task, please let me know...Thanks.
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1 |
1863 |
08 Jan 2008 09:47 AM |
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0 Replies and 1265 Views
IDL & reading headers of netCDF files 1265 0
Started by Deleted User
I'm a 4th year Physics UG trying to get to grips with IDL ready for my
research project involving atmospheric data next term. I'm trying to
read the header contents of some netCDF files and am at a complete
loss (it doens't help that I have never worked with netCDF files
before and don't know what I'm actually trying to look for!). I have
done some very basic C-Programming before, but am a novice at
programming and have no exerience with UNIX.
I've been using Liam Gumley's book and hav...
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1265 |
08 Jan 2008 03:52 AM |
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0 Replies and 1726 Views
DICOM RT Structure 1726 0
Started by Deleted User
Hello,
I would like to import and export DICOM RT STRUCTURE files between IDL and a treatment planning system. As I understand from the Medical Imaging in IDL reference 'IDLffDicomEx' allows me to create RT STRUCTURE files but does not allow me to read them. Am I right to conclude that IDLffDicomEx only allows me to create the basic RT STRUCTURE template but it can not read RT STRUCTURE files that have been created using other applications or even using the IDLffDicomEx function itself
Than...
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1726 |
08 Jan 2008 03:37 AM |
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1 Replies and 1046 Views
reading more than 32767 characters in one line 1046 1
Started by Deleted User
For the analysis of log files, I have to read a file in which some lines have more than 32767 characters.
Input line is too long for input buffer of 32767 characters.
READF: Error encountered reading from file.
How can I acknowledge this error, skip this line, but continue processing the log file
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1 |
1046 |
04 Jan 2008 05:19 AM |
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1 Replies and 1780 Views
0ULL computation behaviour 1780 1
Started by Deleted User
Hi,
I try to do some basic computation of some 0ULL values and the results are all weird... This is even more weird because this computation was working like a charm on the former version of IDL and now I've got errors...
So here is the problem:
Waveform timestamp: 1151843761643267
Compute Waveform: 1151843761643600
(Waveform timestamp - Compute Waveform)/333 = 55395627848977631
or the correct answer would be: -1
Obviously the problem comes form the data format, but even when I s...
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1 |
1780 |
21 Dec 2007 01:12 PM |
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0 Replies and 1426 Views
Error in Internal Tables for Radiance Calibration of MSS images? 1426 0
Started by Deleted User
Greetings!
I believe this has something to do with the internal tables that are used for radiance conversion both in ENVI and IDL so I am posting this question to both fora:
I converted DN values of a Landsat 1 image (dated 1973-2-27) to radiance values. I used MSS_CALDOIT routine for this. I realized that, in converting the Band 4 DN values, IDL used 127 as QCALMAX rather than 63 as suggested by the EOSAT bulletin (August 1986). Is this an erroneous operation on the part of IDL (ENVI too...
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0 |
1426 |
20 Dec 2007 02:32 PM |
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1 Replies and 1421 Views
Question of time 1421 1
Started by Deleted User
Hi,
Is there a way to get the system time in microsecond with the systime() function I need to get a time resolution of a milisec...
Cheers.
Antoine C.
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1 |
1421 |
19 Dec 2007 10:32 PM |
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1 Replies and 1119 Views
Some more about the CATCH procedure 1119 1
Started by Deleted User
Hi,
Back on the CATCH procedure I encounter some problem with a very simple algorithm The following code:
PRO Continue_On_Error
I = SHIFT(INDGEN(10), -5)
F = INTARR(9)
FLAG=0
; Cause an error when K eq 4:
FOR K=0,10 DO BEGIN
CATCH, Error_Status
IF Error_status NE 0 AND FLAG EQ 0 THEN BEGIN
PRINT, 'In the Catch Loop'
K=K1
FLAG=1
CATCH, /CANCEL
ENDIF
F&91I&91K&93&93=K
PRINT, K, I&91K&93
ENDFOR
END
Outputs the fol...
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1 |
1119 |
19 Dec 2007 08:03 PM |
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0 Replies and 1475 Views
IDL 7.0.1 update to improve Analyzing Code performance 1475 0
Started by Deleted User
An update to the IDL 7.0 Workbench is now available on the ITT VIS workbench update site. The IDL 7.0.1 update provides a patch to the IDL Workbench that significantly speeds up the IDL code parser. When the IDL Workbench starts, it needs to parse all PRO code on your IDL path, to enable syntax highlighting, the outline view, content assist, hover help, and open declaration. This parsing happens in a background thread, but if you have a single CPU, or you have a large number of files on your pat...
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0 |
1475 |
19 Dec 2007 10:57 AM |
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5 Replies and 1590 Views
read las file with IDL 1590 5
Started by Deleted User
I have trouble with reading the Lidar file(.las) with IDL.did anyone have some experience
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5 |
1590 |
19 Dec 2007 06:06 AM |
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1 Replies and 1556 Views
Getting continus streaming data from a serial port. 1556 1
Started by Deleted User
Hi,
I try to understand how to use the IDL serial interface with an IMU device connected with bluetooth interface.
I have 2 questions, one directly related to the serial procedure and the other more about data format.
According to the documentation of the device, the data are output as follow:
The data stream begins with the 'A' ASCII character followed by up to 13 measurements and ends with the 'Z' ASCII character. Each measurements is two bytes in the data stream. Each two-byte seg...
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1 |
1556 |
18 Dec 2007 02:55 PM |
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0 Replies and 1341 Views
Archaeological application--extracting ancient river channels 1341 0
Started by Deleted User
Hello!
I have never used IDL before--not a programmer at all, but worked a bit with ENVI last year. Here's my project. I'm conducting archaeological survey in Turkmenistan, in a region heavily obstructed by generally linear, north-south aligned sand dunes. Within this landscape, I'm trying to find ways of isolating the irrigation canals and possible palaeochannels, usually oriented roughtly NW-SE, from the N-S dunes. Would IDL be a good candidate for this kind of image analysis, and what ...
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0 |
1341 |
18 Dec 2007 11:19 AM |
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2 Replies and 1293 Views
IDL 7.0 - how to open projects? 1293 2
Started by Deleted User
It might sound stupid, but I am not able to easily open .prj files (projects that I created using earlier IDL versions). Which is the easiest way to open them The Open Project button is grayed out and hence didnt seem to work. I know it must be something really small that I am missing here but any help in this regard will be appreciated. Thanks
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2 |
1293 |
17 Dec 2007 09:10 AM |
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1 Replies and 1119 Views
Inversion of the Y-Axis in iimage 1119 1
Started by Deleted User
Hi,
Very simple question, but I didn't find any informations on that on the help.
In iimage, when I insert a Y-Axis on a 2d gray-scale matrice that I've imported from IDL, the 0 is located at the left_bottom corner. Or this array represent a seismic ligne on which the origine is located in the upper-left corner.
I like to know how (if it's possible) to invert the Y-Axis in a way to get the 0 inthe upper-left corner
Thanks in Advance.
Cheers.
Antoine C.
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1 |
1119 |
13 Dec 2007 04:06 PM |
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0 Replies and 1480 Views
Inversion of the Y-Axis in iimage 1480 0
Started by Deleted User
Hi,
Very simple question, but I didn't find any informations on that on the help.
In iimage, when I insert a Y-Axis on a 2d gray-scale matrice that I've imported from IDL, the 0 is located at the left_bottom corner. Or this array represent a seismic ligne on which the origine is located in the upper-left corner.
I like to know how (if it's possible) to invert the Y-Axis in a way to get the 0 inthe upper-left corner
Thanks in Advance.
Cheers.
Antoine C.
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0 |
1480 |
13 Dec 2007 04:06 PM |
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1 Replies and 1253 Views
Passing info in a Multiple Widget Hierarchies Program 1253 1
Started by Deleted User
Hi,
I try to understand how to pass information hold in a state structure in a widget program that have multiple base widget.
According to the help, a multiple widget hierarchies program has the following structure:
b
ase1 = WIDGET_BASE()
base2 = WIDGET_BASE(GROUP_LEADER=base1)
base3 = WIDGET_BASE(GROUP_LEADER=base1)
simplified from the help content.
Now, I'm not sure how to code this, I suppose that every base has it own state structure that contains the necessary information for...
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1 |
1253 |
13 Dec 2007 08:54 AM |
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0 Replies and 1440 Views
mosaicking with IDL 1440 0
Started by Deleted User
Is there any tool for mosaicking georeferenced images in IDL similar to the tool existing in ENVI
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0 |
1440 |
11 Dec 2007 04:42 AM |
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1 Replies and 1098 Views
Using the SEG_Y code from the IDL code bank 1098 1
Started by Deleted User
Hi,
I try to understand how to plot the trace from the IDLffSEGY object that I've found in the code bank.
I can make it work and read SEGY data. I can plot each trace from the GetTraceData method. However, I try to display the total profil as an image with the following VERY basic code:
oSEGY=obj_new('idlffsegy')
oSEGY -> getProperty, N_TRACES=n_traces
for i=1,n_traces do begin
data = oSEGY -> GetTraceData (TRACE_NUMBERS=i)
if (i eq 1) then final=data.(0) else final=&91final,data.(0)...
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1 |
1098 |
11 Dec 2007 12:24 AM |
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0 Replies and 1551 Views
3D surface plotting and interpolation 1551 0
Started by Deleted User
Hello, I have started working with IDL one month ago and I have some questions about the subject.
I have an irregulary grid of several hundreds / thousands datapoints with xyz-coordinates. Now I like to plot a surface which I tried by using 'triangulate', 'trigrid' and 'surface'. It works but I don't know how to set the values of the axis similar to the values of my datapoints.
More IMPORTANT for me is the following question: How can I interpolate a 'special' datapoint by a given x,y-coordina...
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0 |
1551 |
10 Dec 2007 08:11 AM |
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1 Replies and 1400 Views
IDL 7 1400 1
Started by Deleted User
The old IDL versions used to let you force the graphics to always be on top so graphics windows were visible while typing code into the command line. Where do I find this option in IDL 7.0
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1 |
1400 |
06 Dec 2007 05:24 PM |