Digitize a Trench

The end-to-end process for digitizing trenches begins with specifying a starting pipe invert elevation. You then digitize the trench using the appropriate tool and provide the trench specifications.

Trench specifications include the elevations along the trench, trench dimensions, and pipe/bedding specifications.

Digitize Pixel-Based and Vector Trenches

On a digital plan, a trench may be composed of pixel-based lines or may be represented by one or more vectors. A trench that is composed of pixel-based lines must be digitized by using the Point tool to trace its contours, while a trench that is represented by vectors can be digitized by using the Vector tool and simply selecting the vectors within it. As a result, you can more quickly and accurately create Earthwork estimates. See the Help topic Working With Vectors for more information about vectors.

Methods for Digitizing Trenches

For more information about the Trench popup window, see Trench Popup Window Field Reference.

Tip: Use the Align to Image Tool to improve speed and accuracy during digitizing. When you digitize a drawing with the Align to Image tool activated, Viewpoint Estimating aligns the takeoff line to the closest black pixel. You can set the default sensitivity of the tool in Preferences. You can press and hold Shift to turn Align to Image on and off as you digitize a drawing. Align to Image can be used with the following:
  • Compensate
  • Add Drawing
  • Point
  • Trace
  • Spot Elevation
  • Borings
  • Reference Point
  • Stake
  • Trench
  • Count Line
  • Count Item
Note: When digitizing against a colored background, Viewpoint recommends that you turn OFF the Align to Image tool.