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How to Use OpenDatcom
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TOPIC: How to Use OpenDatcom
#19
reckless
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How to Use OpenDatcom 2 Years, 6 Months ago Karma: 1
Basic Installation:
Download: openae.org/files/OpenDatcom.zip

Unzip OpenDatcom.zip using either WinZip or Windows compression utility to the desired installation directory. Run OpenDatcom.jar (consider .jar files the same as .exe files).

Hopefully at this point everything is running correctly w/o any errors, and If so, your finished! However if you see a friendly Java error, follow the instructions below to install the latest Java update.

Installing Java:
Get the latest Java JRE here: Java JRE 1.6
Look for this Update:

And download/install it. OpenDatcom.jar will run after the update is installed correctly.

And... Your finished!

If there are any questions or problems, let me know. I will do everything I can to get you up and running
 
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#85
daveculp
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Re:How to Use OpenDatcom 2 Years, 4 Months ago Karma: 0
I'm trying to run OpenDatcom v1.1 on a linux platform. I see that the bin/Datcom directory contains a windows executable called DATCOM.exe. Am I supposed to replace this with the datcom linux executable? Can/should I remove the DATCOM.exe executable?

As a test I renamed the windows executable, then added the linux executable to the bin/Datcom directory. Running OpenDatcom from a command line I get the following error after clicking on the "Run Datcom" button:

Jan 15, 2010 11:19:03 AM Services.DatcomThread runDatcom
SEVERE: null
java.io.IOException: Cannot run program "/home/dave/OpenDatcom_v1_1\Bin\Datcom\datcom.exe": java.io.IOException: error=2, No such file or directory
at java.lang.ProcessBuilder.start(Unknown Source)
at Services.DatcomThread.runDatcom(DatcomThread.java:56)
at Services.DatcomThread.run(DatcomThread.java:46)
Caused by: java.io.IOException: java.io.IOException: error=2, No such file or directory
at java.lang.UNIXProcess.<init>(Unknown Source)
at java.lang.ProcessImpl.start(Unknown Source)
... 3 more




It appears the datcom.exe filename is hard coded in the jar file. I suppose I can rename it in the jar file. Is there a better way?
 
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Last Edit: 2010/01/15 09:26 By daveculp.
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#87
reckless
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Re:How to Use OpenDatcom 2 Years, 4 Months ago Karma: 1
Yes datcom.exe is hardcoded into the program. At the time of the release we hadn't generated a linux-compatable version of the digitalDatcom so I hardcoded it. Since we now have a linux version, I'll update it this weekend.
 
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#92
radome
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Re:How to Use OpenDatcom 2 Years, 3 Months ago Karma: 0
I am also running Linux. It is FedoraCore 12. I've installed wine, and though I've not gotten far enough to get useful output, it is able to run the datacom exe file from the CLI. or shell.
Like wine datcom.exe <<enter>>.

The issue I am having is with the window size. If I run the JAR on my MS Windows computer it sizes the window to the largest tabbed panel. However on my home computer running FC12 it is sized to the first tabbed-panel.

Can I poke an Application.<someproperty> to allow resizing?
Am I missing something else here?

Thank you,
 
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#93
aleksey
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Re:How to Use OpenDatcom 2 Years, 3 Months ago Karma: 3
Hey radome,

Yeah, the resizing property is turned OFF in the project. I don't know why, so we will turn it back ON again.

This window issue is definitely giving us a hard time

I am porting over OpenDatcom to linux right now, so hopefully soon we will have a stable version of the implementation.

We will include the window fix, with the linux porting, and tool-tips.

Thanks for reporting it ! I thought I was crazy when I was the only one having this problem.
 
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Aleksey
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#113
bhagat
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Re:How to Use OpenDatcom 2 Years, 3 Months ago Karma: 0
Thanks for your quick reply..
It helped a lot.

here is what i think
the kinematic viscosity of water is one order smaller than that of air. Also speed of typical underwater vehicle are about one or two order smaller than subsonic aircraft speed. So, Reynolds number of underwater vehicle and subsonic aircraft are comparable.

Does Datcom takes all the units in Feets and lbs..is there any way to enter in SI system??

thank you again.
 
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