MohidWiki - User contributions [en]

SeaDAS

2007-06-18T10:31:37Z

192.168.20.129:

[http://oceancolor.gsfc.nasa.gov/seadas/ SeaDAS] (SeaWiFS Data Analysis System) is a sattelite image processing package developed by [http://www.gsfc.nasa.gov/ GSFC/NASA].

It is developed for a UNIX/LINUX platform, so, for Windows users the best choice is to create a [[VMWare]] virtual machine and install SeaDAS, or to use an existing linux machine and install it.

It has a GUI and a command line interface.
To process a large set of files, the best choice is to use the command line(or terminal/SSH) and use Bash or Seadas/IDL scripts.

SeaDAS command line input in a terminal/SSH:
>Seadas -em -b input.cmd

input.cmd is text file with SeaDAS(IDL) commands, for example:
msl12,IFILE='../l1/S1998011121940.L1A_MLAC.x.hdf',
OFILE1='../l1/l2_nonir/S1998011121940.L2.hdf',par='ns_nonir.par',metsearch=1,ozonesearch=1,sstsearch=1

=Links=

Vmware

2007-05-28T16:01:11Z

192.168.20.129: /* Expanding the size of a disk */

[http://www.vmware.com/products/server/ VMware server] is a virtual machine server that allows to launch guest OS from within a host OS. Its utility for testing new software, and new network configurations is huge!

[http://www.vmware.com/products/player/ VMware player] allows to play images of virtual machines (not required if you already have the [http://www.vmware.com/products/server/ VMware server]). An image of a virtual machine is called an [http://www.vmware.com/vmtn/appliances/directory/ appliance].

[http://www.vmware.com/products/converter/ VMware converter] allows to transform any physical computer into a virtual machine. This can be useful when you want to port a given computer configuration to other machines.

== Installation under linux ==
*Download the vmware server for linux.
*Register and ask for a few license keys.
*Install the kernel-devel rpm package for kernel source code recompilation.
*Install the inetd and xinetd.
*Install the vmware server for linux.
*from the shell type:
> vmware-config.pl
and follow the installer instructions. By the end, you should have the vmware daemon up and running successfully and ready to install guest OSes.

== Installing new virtual machines ==
* From Applications-->System Tools-->VMware server console.

==Toggling between Full-screen and windowed modes==
The magic key stroke is:
'''ctrl-alt-enter'''

==Expanding the size of a disk==
There is an command line utility that can resize your VMachine disk:
C:\Program Files\VMware\VMware Server>vmware-vdiskmanager -x 20GB
"D:\VMmachines\Fedora Core 4 Workstation\Other Linux 2.6.x kernel.vmdk"
Then, you need to adjust the partition to this new size. WARNING: this is a bit dangerous if you don't follow the next commands exactly as written!

* enter as root or su and type:
fdisk /dev/sda
* list the partitions:
p
* delete the system partiton(partition 2, probably):
d
* create a new one:
n
* p for primary and when it asks the new size, put in the new size(20GB for the example above)
* write the new partition to the disk:
w
* reboot.. and it should(...) be fine.

==External References==
*[http://www.vmware.com VMware homepage]
*[http://www.vmware.com/vmtn/appliances/directory/ Appliances marketplace]

[[Category:Technology]]
[[Category:Linux]]
[[Category:Windows]]

Resize

2007-05-10T20:18:29Z

192.168.20.129: /* External References */

[[Resize|Resizing]] a partition in a hard disk is a way to better manage a hard drive's resources.
Several tools may be used for resizing.

==Linux==
===QtParted===
QtParted available in Knoppix distro.

==Windows==
===Commercial===
====Norton Ghost====
Is probably most popular commercial tool for resizing partitions.
===Free===
====Partition RESIZER====
Is a free DOS resizer utility. It's best advised to be used from within
a floppy boot disk or [[USB boot drive]]. It does not resize an NTFS(WinXP,2k) partition.

==External References==
*[http://qtparted.sourceforge.net/ QtParted homepage],
*[http://en.wikipedia.org/wiki/Ghost_(software) Ghost Wikipedia],
*[http://www.zeleps.com/download.html PRESIZER download page].
*[http://crashrecovery.org/CrashRecoveryKit/iso/2.4.21/HOWTO.ntfs.html Guide to resizing ntfs using linux]
*[http://www.arsgeek.com/?p=655 help on GRUB error 17]
[[Category:Hardware]]
[[Category:Tools]]
[[Category:Linux]]
[[Category:Windows]]

CreateVerticalResolution

2007-03-22T17:18:12Z

192.168.20.129:

PROGRAM CREATEVERTICALRESOLUTION.EXE

Task performed:

Calculates vertical resolution for 3D modelling based on a vertical profile for a
property, by considering the same property change with depth for all layers.

Allows the user to choose between providing the desired layer number or the
desired property change.

Main features:

- interaction with input file is performed through a nomfich file (input file
indicated in IN_MODEL; reference path is indicated in ROOT_SRT);

- input file:

- path to the file with property profile:

PROFILEFILENAME : ...

- path to the output geometry file:

OUTPUTFILENAME : ...

- vertical domain type intended (not mandatory):

DOMAIN_TYPE : ... (only current option and default is CARTESIAN)

- maximum bathymetry depth:

MAXIMUMDEPTH : ...

- required property change per layer (specified instead of LAYERS keyword)

PROPERTY_STEP : ...

- required number of layers (specified instead of PROPERTY_STEP keyword)

LAYERS : ...

(mandatory to provide one of LAYERS or PROPERTY_STEP)

- maximum depth for surface layer (not mandatory, used only if PROPERTY_STEP):

MAXDEPTH_SURFACE : ... (default is 100.0m)

- maximum depth for bottom layer (not mandatory, used only if PROPERTY_STEP):

MAXDEPTH_BOTTOM : ... (default is 500.0m)

- profile file:

- block of profile depths (from lower depth to higher depth):

<BeginDepth>
...
<EndDepth>

- block of profile values (from lower depth to higher depth):

<BeginProfileValues>
...
<EndProfileValues>

Some notes:

- in case the surface layer exceeds the maximum depth for surface layer for PROPERTY_STEP option the layer is divided till sublayers have depth smaller than maximum depth; the surface layer depth is for the check added to the first profile depth (the one most near surface);

- if maximum depth of bathymetry exceeds the deeper profile depth then exceeding depth is considered in the last layer (the one most in bottom);

- in case the bottom layer exceeds the maximum depth for bottom layer for PROPERTY_STEP option the layer is divided till sublayers have depth smaller than maximum depth.

Createverticalresolution

2007-03-22T17:17:11Z

192.168.20.129:

#REDIRECT [[CreateVerticalResolution]]