System Requirements
Download
Command line usage
What if I get an OutOfMemory error when I run SCNMPlot?
How is SCNMPlot different from jPlot and xplot?
How to nudge the individual plots
How to add/remove color layers from the individual plots

System Requirements

In order to use SCNMPlot you must have a JavaTM virtual machine (JVM) installed on your system. SCNMPlot is designed to work with JVMs that support JavaTM 2 Platform, Standard Edition (J2SETM) version 1.3 or higher.

For information on obtaining and installing a JVM on your system please visit the Java Technology Products and APIs page (for Solaris, Windows and Linux operating systems) or the Java Platform Ports page (for other operating systems).

Download

SCNMPlot.zip
SCNMPlot.tar.gz

• Axes representing time now show information information down to the micro-second.
• Information on distances shown using the triangle tool now show information down to 6 fractional decimal digits.

Command line usage

To overlay multiple files using SCNMPlot, at the command prompt enter:

java -jar SCNMPlot.jar -o [files]


where:
    -o is the option that enables the overlay of files
    files is a space separated list of file names (where the files are in
the xPlot format)

The plots come up with each plot file specified on the command line represented by a darker shade. No nudging is performed initially.

What if I get an OutOfMemory error?

Occasionally you may run into an OutOfMemory error when using SCNMPlot. This is due to the fact that the default heap size for the Java virtual machine was too small for the size of the files being plotted. To remedy this you need to set the -Xmx java option to a larger size.

For example, if I needed 100 Mbytes of memory for my plots I would enter the following to run SCNMPlot:

    java -Xmx100M -jar SCNMPlot.jar -o file1 file2

For more information on this java option you may enter the following:

    java -X

How is SCNMPlot different from jPlot and xplot?

SCNMPlot extends the ability of jPlot and xplot by:

• allowing the user to overlay multiple plots in one view
• allowing the user to nudge the individual plots in an overlay
• allowing the user to remove color layers from the individual plots

SCNMPlot intends to maintain the same interface as jPlot and xplot, however there are some differences.

To zoom in drag the mouse while pressing the left mouse button.

To zoom out click on the left or right mouse buttons.

To drag the entire graph drag the mouse while pressing the middle button. (NOTE: dragging of the graph in this manner does not affect the nudge values, i.e. if you drag the entire graph this way the nudge values will remain the same as before the drag)

To show the distance triangle drag the mouse while pressing the right button

How to nudge the individual plots

1. To set the nudge offsets, go to the View menu and select Nudge, or enter Ctrl-N.
2. The Nudge Dialog will come up with the names of the files, the recommended X offset (the one that will synchronize the plot to the first one, based on the minimum X value), and fields for nudging in the X and Y directions. If you press the Set to recommended button the X values will be filled in with the recommended values. When you want to apply the nudge, click on the Apply button.

NOTE: All of the offsets are treated as absolute in regards to the original values.

How to add/remove color layers from the individual plots

1. From the Options menu, choose the Colors submenu, and then choose Edit Shown OR enter CTRL-E when over the main window.
2. Select the color layers you would like to remove (or add) for each plot file using the check boxes. (If a check box is disabled then that color is not present in the corresponding plot file.)
3. Click on the Apply button and it will be done.

NOTE: This ability is only available when using the -o option, i.e. to perform this function when viewing a single plot the user must still specify the overlay option.