Graph options

Graph options

To access this dialog box, click in the PLW Graph window.

This dialog box is used to set the options for the Graph window.

Title.  This is the title of the graph that will appear on the graphical reports.

Format.  This specifies how traces are to be divided between graphs. The choices are:

Automatic - the traces are allocated by the computer, putting traces with the same units on the same graph.

Separate graphs - each measurement is displayed on a separate graph.

All traces on same graph  - each measurement is displayed on the same graph

Time axis scale.  This allows you to choose how the time axis is scaled:

Automatic - the scaling is set by the computer.

Maximum - the time axis is set to the maximum sampling time

Scroll - the display is scrolled across the screen

Manual - the scale can be changed by clicking on the scroll left/right tool buttons on the Graph window.

The time axis scale is automatically set to Manual if you click any of the time scrolling buttons.

Time Format.  This allows you to choose the format for the time axis:

Numeric - the time in the selected sampling time units since the start of the run

Time since start - the time in hours and minutes since the start of the run

Time of day - the real time

Date/time - the real time including the date

Vertical axis scale.  This allows you to choose how the vertical axis is scaled:

Automatic - the scaling is set by the computer.

Maximum - the axis is set to the maximum

Manual - the scale can be changed by clicking on the vertical scrolling buttons on the Graph window.

The Vertical axis scale is automatically set to Manual if you click any of the vertical scrolling buttons.

Display every xxx samples.  If you are displaying a graph while collecting data, this controls how frequently the graph is updated.  It has no effect after you have finished recording, or when using the player.

When collecting fewer than a thousand samples, leave it set to 1. When collecting a large number of points, it may take some time to update the graph, so updating every time a new reading is taken would be a waste off effort.

Display Markers.  When this box is checked and there is more than one trace on the graph, the computer displays markers (triangles, circles etc) on the traces to help identify the traces.

Auto save on exit.  When this box is checked, all graph window settings are saved automatically when you close the graph window.