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The Cross Section Marker

The Cross Section Marker is a versatile tool for looking at specific ranges of data in the Timeline view. It starts one bin wide but can be re-sized using the handles on both sides or moved left and right using the middle of the marker. An overlay shows you data pertinent to the current range of the Cross Section Marker.

By default, the Cross Section Marker is inactive. To activate or move the Cross Section Marker, click anywhere in charts or anywhere in the map modes of the details panel. The Cross Section Marker appears where you clicked and provides data specific to the bin where you placed it.

You can also stretch the Cross Section Marker using the handle that is located above the charts in the Timeline view. Click and drag on either that right or the left side of the handle to expand it. Once expanded, you can move the Cross Section Marker left and right by clicking and dragging it. The information contained in the samples HUD relates only to the window of time defined by the current Cross Section Marker.

Note

Unlike the filter controls, moving and expanding the Cross Section Marker does not have an effect on the data in the other report views. It does affect the data in the details panel if Processes mode is currently active.

In cases where you set a Cross Section Marker border, then change to a higher level of magnification where the Cross Section Marker border would not sit precisely, the border is displayed as a blurred line. This thicker, fuzzy border line indicates that the offset of the Cross Section Marker is not perfectly aligned with the bin at the current magnification level, but is fractionally within it. For example, if you zoom in the 100ms level and set an edge of the Cross Section Marker to 26.6 seconds, then zoom back out to the 1s level, the edge of the Cross Section Marker appears as a blurred line.

Figure 6-2 A Cross Section Marker fuzzy line

A Cross Section Marker fuzzy line

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