About the Trace Window

The Trace Window parameter is the moving window size used to trace a grouped set of points. This parameter is also dependent on the ground sample distance. Typically, the value would not be less than the ground sample distance and the value set for the Grow Window parameter. Also, the type of objects would affect this parameter where objects with a lot of nooks and crannies might require a smaller value.

Effects of Increasing or Decreasing the Trace Window

• Increasing Value: Increasing the trace window value above the maximum point spacing will generally result in more objects being traced and squared. In addition, the traced and squared objects will tend to be somewhat smoother the larger the value. Additionally, increasing the trace window value will result in loosing some of the nooks and crannies that might be present in a particular object.
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• Decreasing Value: Decreasing the trace window value below the maximum point spacing will generally result in fewer objects being traced and squared. Setting the parameter to slightly greater than the maximum point spacing will help trace small nooks and crannies but will also result in fewer objects being output.

How to Modify the Trace Window

Trace Window Text box

1. On the Point Group Tracing and Squaring property page, type a new Trace Window value into the Trace Window box.
2. Click the Apply button to commit the change.