Launching MultiTracer

• normal launching
• launching with extra memory
• launching while specifying files to load on the command line
• launching while specifying other command line options

The MultiTracer application is contained in a file called 'MultiTracer.jar'. The application must be launched as an application (i.e., it cannot be used inside a web browser). The method for launching the application depends on the type of computer:

Normal launching

• For PC's

  Find the icon for MultiTracer.jar

  Double clicking the icon should launch the application

• For Macintosh OS X

  Find the icon for MultiTracer.jar

  Double clicking the icon should launch the application

  Alternatively, open the Terminal application (its usual location is in the Utilities folder inside the Applications folder) and change to the directory where MultiTracer.jar is located

  On the command line, type: java -jar MultiTracer.jar

  Alternatively, open the Terminal application as above and change to the directory where your data is located

  On the command line, type: java -jar /pathname/MultiTracer.jar

  where /pathname/ is the Unix path to the directory containing MultiTracer.jar

• For Unix

  Change to the directory where MultiTracer.jar is located

  On the command line, type: /usr/java/bin/java -jar MultiTracer.jar

  Alternatively, change to the directory where your data is located

  On the command line, type: /usr/java/bin/java -jar /pathname/MultiTracer.jar

  where /pathname/ is the Unix path to the directory containing MultiTracer.jar

If successfully launched, the application will appear with a blank screen area, the next step is to load an image

Launching with extra memory

If you plan to load very large files or a large number of smaller files, the default maximum Java heap size that your system allocates to Java processes may be too small, in which case you will encounter "Out of Memory" errors. The method for altering the maximum heap size varies across platforms and implementations. Typing "java -X" or "/usr/java/bin/java -X" at the prompt will probably bring up a list of command line options that include an option for changing the maximum Java heap size.

Launching while specifying files to load on the command line

If you launch MultiTracer from the command line, you can enter up to sixteen file names to load into the sixteen available display slots. Simply append the file names, separated by spaces, at the end of the command. Only Analyze and MINC image files can be loaded from the command line. MINC images must be specified with the suffix '.mnc'.

Other command line options

The following options can be included on the command line:

-slot1 filename

loads file called 'filename' in display slot 1 of the main display

-slotN filename

loads file called 'filename' in display slot N of the main display (N can be 1 ... 16)

-flip_x

flips default x-axis in main display window

-flip_y

flips default y-axis in main display window

-coronal

changes initial display orientation in main window from transverse to coronal

-sagittal

changes initial display orientation in main window from transverse to sagittal

-swap

swaps display x- and y- axes in main display window

-ortho1_flip_x

flips default x-axis in first orthogonal display window

-ortho1_flip_y

flips default y-axis in first orthogonal display window

-ortho1_swap

swaps display x- and y- axes in first orthogonal display window

-ortho2_flip_x

flips default x-axis in second orthogonal display window

-ortho2_flip_y

flips default y-axis in second orthogonal display window

-ortho2_swap

swaps display x- and y- axes in second orthogonal display window

Modified: May 22, 2005