Editing Survey Points

During surfacing, you can edit or remove survey and drain points using the selection methods below.

Select points

Select by Z

Use Select by Z to select elevation points by height.

  1. Click Select by Z to display a graph of all your elevation data.
  2. Click the two dashed lines and use them to wrap the data at the height you want to select.
  3. Click Apply. The selection appears on the map in black.
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Select by lasso

Use Select by lasso for a freeform selection.

  1. Press down on the map and drag your finger around the data you want to edit. A blue dotted line shows what you are about to select.
  2. Release your finger to select the data.
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Select by circle

Y6B8qree0zhooj8wukbldgbizl8z5x8s-gxrg-png.pngSelect by circle selects everything within the circumference of the circle you draw.

  1. Press down at the center of the circle and drag outwards. A blue dotted line shows what you are about to select.
  2. Release your finger to select the data.

Select by path

Select by path will delete all consecutive points between point A and point B.

  1. Press down at the point where you want to start and drag to an end point.
  2. All points collected on that path between the two points will be selected when you release your finger.
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Active selection and cancellation

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While these selection functions are in use, their buttons display large red circles, indicating that deleting is active. Press the buttons to cancel selection and avoid accidentally selecting data while moving the screen or zooming.

After making a selection, you have two options: delete the points or change their height.

Deleting Survey/Drain Points

IBhsyiibq6cndeuscolxv3kxvj6frxuptjwpa-png.pngClick the Delete button that appears after you select points. The selected points are deleted immediately. Because this change is permanent, saving before you do this is recommended.

Changing height of Survey/Drain Points

Because this change is permanent, saving before you do this is recommended.

  1. Click Modify Elevation to open the screen shown below.
  2. Enter the amount to change the elevation by and click Apply.
  3. Your data is updated immediately, and the change is visible on screen.
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Video tutorial

For a YouTube tutorial on editing points, visit https://youtu.be/Q0581DSU7j4 or scan this barcode with your phone.

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Created 2025-03-04 06:49:03 UTC by Hugo
Updated 2026-10-19 01:03:02 UTC by Sathya