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## Tip #161 - Use the Single Proportioning Command to Re-establish a Corner

#### By Hannah Poon posted 10-13-2021 16:38

Hey TBC’ers! Have you ever wanted to re-establish a corner or point you could not find in the field? For instance, you could not find a corner in the field but found two other points in line with it and shot those. You can use the Single Proportioning command to compute the point in proportion to the distances that are from your actual point to the recorded distance on the map.

Follow the steps below to learn how to re-establish a lost corner.

• Drag and drop your VCE file from File Explorer into the Plan View or open it by selecting File > Open.

• Select the Survey tab in the Ribbon and navigate to COGO.

• Select Single Proportioning to display the Single Proportioning command pane.

• Select the appropriate Calculation Type: Planar (grid) or Geodetic (global). Here, we will select Planar (grid) because proportioning is along a straight or curved line that is 1 km or less.

• In the Measured distance fields, select or enter the Starting and Ending points or locations between which you want to create the new proportioned point.

Note: In the graphic views, the starting point is represented by an up-pointing triangle icon; the ending point is represented by a down-pointing triangle icon. The distance between the starting and ending points is displayed as the Measured distance above the Measured distance fields.

• In the displayed Record distance field, enter the official recorded distance from the Starting point to the missing point. Press the Tab key to display a new Record distance field and enter the official recorded distance from the newly created point to the End point.

Note: The distance between the starting and ending points is displayed as the Total record distance above the Record distance fields.

• Optionally, in the Starting point ID field, change the default ID displayed.

Note: All new points will be named based on and starting from this ID (for example, 1000, 1001, 1002, and so on); point IDs are applied sequentially, starting from the starting position.

• Optionally, change the Layer on which the new points will be displayed. Here, we will choose the Points layer.

• Check any of the checkboxes as appropriate at the bottom. Here, we will only check Create report to generate a report describing the results of the proportioning. This report is not saved in the project and cannot be re-opened at a later time. Then hit Apply to create the new point.

• The Single Proportioning Report is automatically opened to view. If you do not obtain satisfactory results, press Ctrl+Z to undo the action. Then make changes as necessary in the Single Proportioning command pane before trying again.

I hope this tip comes in handy in one of your upcoming Field to Finish Workflows!

#tbc
#trimblegeospatial
#proportioning