Measure Sag

Summary

This function is used to measure sag. Mainly used for measuring the sag of wires, ground wires, and drainage wires.

Usage

Click Measurement > Measure Sag

Parameters

• Line Type: Default is power line, select the target line type for calculation (power line/wire, ground wire, drain wire).
• Profile Thickness(meters)(default value is "5.0"): The thickness of the cross-section of the line is used to extract a single wire point cloud.
• Cluster Threshold (meters)(default value is "3.5"): When clustering point cloud data, the maximum spatial interval distance is used. Power line points below this threshold will be clustered together.
• Hang Thickness(meters)(default value is "0.1"): The thickness of the point cloud cross-section near the hanging point is used to extract the hanging point.
• Height Threshold (meters)(default value is "0.5"): Measure the maximum height difference of the line point cloud of the measured object. If the height difference of the slice is greater than this threshold, it is considered that there are hanging points or other types of point clouds in the slice.
• Measurement Method: Default to single point. When selecting a single point, simply select the measurement point to automatically calculate the sag of the measurement point. When selecting three points, you need to sequentially select the small side hanging point, the large side hanging point, and the measurement point to calculate the sag of the measurement point.
• Point Selection Mode: Default to manual. When selecting manual, calculate the sag of the manually selected point. When selecting automatic, it is necessary to select the automatic calculation position (middle point, lowest point, maximum sag point), and then calculate the sag of the selected position of the line corresponding to the selected point.
• Point Selection Position: The default is the midpoint. Select the location for automatic calculation.
  • Middle: The midpoint of the line.
  • Lowest: The lowest point of the line elevation.
  • Maximum: The maximum point of line sag.

Steps

1. After enabling the sag measurement tool, select the line type of the object to be measured, adjust the parameters, and when the measurement method is single point, click on the point to be measured to automatically calculate the sag of the measurement point. When the measurement method is three points, click on and select the small side hanging point, large side hanging point, and measurement point in order to calculate the sag of the measurement point.