This application note illustrates how to pan through data in a file using from the Display window. This example uses files which are provided on standard distribution disks of Snap-Master for Windows. The instrument used is REPLAY.INS. The file used is EXAMB1.DAT.

To pan through a data file in the Display window, select the Scroll bar and Full Retrace options from the Options drop-down menu. Then zoom in on data of interest (by default the display will view the entire frame contents). You may zoom in on the data either by clicking the zoom button and drawing a box around the data of interest, or by double-clicking on the X axis of the waveform that you wish to zoom in on.

Once you have zoomed in on the data and enabled the correct options, select the waveform that you wish to scroll by holding the CTRL key down and clicking on the desired waveform. A bold outline will indicate the waveform you have selected for scrolling. Then scroll through the data using the scroll bar at the bottom of the display window.

You have three options for scrolling the waveform:

1. Click on the arrows at the left or right ends of the scroll bar to scroll the waveform left (lower x-axis range) or right (higher x-axis range). For each click, the waveform scrolls by one x-axis division. For example in the screen below, the x-axis has a viewing area of 1 second with 10 divisions so the amount scrolled will be 0.1 seconds.
2. Click on the scroll bar background between either arrow and the scroll bar thumb (box in the center) to scroll the waveform left or right. For each click, the waveform scrolls by one entire viewing area on the x-axis. For example in the screen below, the x-axis has a viewing area of 1 second so the amount scrolled will be 1 second.
3. Click and drag the scroll bar thumb (the box in the center) to any relative position along the scroll bar. This action will select the corresponding relative position within the frame. For example in the screen below, the frame length is 8 seconds so if the thumb were placed close to the center, then the viewing area would be from span around the 4.0 second mark.