Geog 4997: Vector GIS

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Geog 4997 Vector GIS

• Session 1
• Computer Science Stuffand CADGIS Introduction

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Operating Systems
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What is an operating system?

• An operating system is a set of programs that
  manages the resources of a computer system.
  (Resources include memory, disk space,
  peripherals, CPU, etc.)
• The operating system is both rule-maker and
  referee.

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Examples of operating systems

• Windows (variants)
• Unix (variants)
• Linux
• Mac OS X
• MS-DOS
• and others.

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What is a user interface?

• A user interface is the mechanism by which a user
  of a computer system can communicate with its
  operating system and application programs

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User interfaces

• Some user interfaces are graphical by nature.
  These interfaces are Graphic User Interfaces or
  GUI (pronounced goo-ee). They will use pictures
  and symbols for users to point and click.
• Other user interfaces use text. When the text is
  entered on lines in a typewriter fashion, the
  user interface is called a command line interface.

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Examples of Command Line Interfaces

• DOS batch commands
• Unix K-shell and C-shell

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Examples of Graphics User Interfaces

• Windows
• MacOS Finder
• X-Windows

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Windows

• Windows 3.x was a graphic user interface for DOS.
  It needed DOS to operate and could not operate
  on its own.
• Windows XP, 2003, 2000, NT, ME, 98, and 95 ARE
  operating systems in their own right. They do
  not need DOS at all.
• The term Windows can now refer to an operating
  system or user interface.

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Windows XP

• For this semester, the operating system will be
  Windows XP Pro.
• The servers in CADGIS use Windows Server 2003 and
  2000
• Windows Vista will be replacement for Windows XP
  (in the future)

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Using Windows XP
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Logging into Windows XP

• Login by press CtrlAltDel keys simultaneously
• Enter your username of PAWS ID
• Enter your password of PAWS password
• Change the domain to read LSU

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The Desktop

• Task bar with the Start Button
• Icons (short cuts to programs and/or files)
• Background
• The Recycle Bin

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The Task Bar

• Shows programs already running

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The Start Button

• Gives access to programs and settings
• Appears on one end of the task bar

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The Mouse

• A single click of the left button on an icon
  selects the icon for some action.
• Double clicking the left button on an icon causes
  the icon to perform its default action.
• A single click of the right button on an icon
  displays a list of actions that may be applied to
  the icon.

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The Recycle Bin

• Files that are deleted are not removed from the
  disk but are moved to the recycle bin
• Files in the recycle bin can be restored to their
  original place on the disk or moved to a new
  place
• The recycle bin can be emptied to make space
  available on a disk. At that point, the files in
  the recycle are GONE FOREVER!

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My Computer

• Allows you to see resources such as disk drives
  on your machine.

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The Network Neighborhood

• Allows you to see all machines in your domain.
• Allows you to see other domains.

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Settings

• Control Panels
• Printers
• Task Bar

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Printers

• Allows a user to add or remove a printer from the
  local machine
• Allows a user to view the status of the printers
  such as the queue for use.
• Allows a user to select a default printer for
  applications

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Control Panel

• Allows you to access the many features of Windows
  that control how it and your computer operates.
• Only users with administrator privileges are
  allowed to change settings within the control
  panel.

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CADGIS Printers

• Papyrus1 is the server for the 36 plotters
• Papyrus2 is the server for the smaller plotters
• Changes and additions may be made to plotters as
  needed during the semester.
• Check the CADGIS web site at http//www.cadgis.lsu
  .edufor plotting prices

continued...
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CADGIS Printers

• Color 36 on Papyrus1
• large format color plotter
• Color 08x11 and Color 11x17 on Papyrus2
• small format color
• bw 08x11 on Papyrus2
• small format black and white
• bw 36 on Papyrus1
• large format black and white

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Windows Explorer

• The File Manager of Windows XP
• Allows users to copy, delete, move, and rename
  files.
• Allows users to create directories.
• Allows for the mapping of disk drives.
• Allows a user to search for files bases on name,
  date, etc.

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Filenames on Windows XP

• The names of files and directories on Windows can
  have as many as 128 characters.
• The characters that are allowed in the names are
  letters (both upper and lower cases), digits,
  dashes, underscores, and even blanks.
• While upper and lower case letters are allowed,
  file names are case insensitive.

continued...
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Filenames (cont.)

• Windows still uses file suffixes to designate the
  kind of file.
• Suffixes are formed by a period (.) followed
  generally by three characters. For example,
  x.doc is a Word document file.

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Copying and Moving of Files

• Explorer uses the copy and paste mechanisms to
  make copies of files.
• Explorer uses the cut and paste mechanisms to
  move files between directories.

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Deleting Files

• Deleted files are not removed but are moved to
  the recycle bin.
• Files can be retrieved from the recycle bin as
  long as the recycle bin has not been emptied.
• Files can be moved from the recycle bin to
  directories other than their original directories.

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Finding Files

• Files can be found by name, creation date, or
  even by size
• Directories and their subdirectories can be
  searched.
• All directories on all drives of a computer can
  be searched.

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Mapping Network Drives

• Drives on other machines can be mounted or mapped
  as though they were located on your machine.
• Important Drive LettersH LSU TigerBytes (50MB
  max)W Homework directoryX CADGIS data
  directoryY CADGIS Classinfo directoryZ
  users folder on CADGISuser

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Important Directories
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Program Directories

• Applications and programs are found one of two
  directories
• C\Program Files
• C\WIN32APP (obsolete)
• The operating system can be found in C\WINDOWS
  (or C\WINNT)

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\Temp Directory

• The temp directory is a place for temporary files
  to be stored.
• Programs will create temporary files in this
  directory.
• Users can also create files in \TEMP
• DO NOT STORE anything of importance in the \TEMP
  directory, for files there can be deleted at any
  time.

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The CADGISusers directory

• Each student user has a folder under
  \\lsu.edu\cadgis\users. The name of this
  directory is the same as the users login which
  is the users PAWS account.
• The computers in CADGIS automatically map My
  Documents and the Z drive to the users folder
  on CADGIS users.
• The combined size of all the files for your
  CADGIS users folder is limited to 200MB.

continued...
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The CADGISusers directory

• Windows will not allow your to store over your
  quota of 200MB. If you attempt to do so, you
  will get a Drive Full error message.

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The CADGISclassinfo directory

• Most classes that use the CADGIS Lab have a class
  folder under \\lsu.edu\cadgis\classinfo.
• The computers in the CADGIS Lab will map the Y
  drive to the Classinfo directory.
• Students can read files in this directory and can
  copy files from this directory.
• Student CAN NOT WRITE files to this directory and
  CAN NOT MODIFY files in this directory.

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The CADGISdata directory

• Much of the spatial data of the CADGIS Lab have a
  class folder under \\lsu.edu\cadgis\data.
• The computers in the CADGIS Lab will map the X
  drive to the data directory.
• Students can read files in this directory and can
  copy files from this directory.
• Student CAN NOT WRITE files to this directory and
  CAN NOT MODIFY files in this directory.
• Much of this data is the same as can be
  downloaded from Atlas at http//atlas.lsu.edu

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The Root Directory

• Each drive has a root directory indicated by a
  single, solitary backslash (\) such as C\
• DO NOT STORE any file directly under the root
  director of drives in the CADGIS Lab. These
  files WILL BE DELETED.

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DOS commands

• A single DOS command can be entered from the Run
  option under the Start Button
• Multiple DOS commands can be entered using the
  Run option and typing cmd as the command.

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Logging out

• Press CTRLALTDEL to logout or go to the
  Shutdown option under the Start Button
• Logging out will stop all programs.
• It is possible to lock a workstation so that
  programs continue to operate while no other user
  is allowed to use the workstation. DO NOT LOCK
  CADGIS workstations!