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TerraMatch User Guide

Add known point

Add known point command lets you place a tie line of the type Known xyz, Known xy, or Known z point. This requires that control measurements are available and drawn as point elements into the CAD file.

To add a known point:

1. Select Add known point command from the Line pulldown menu.

This opens the Add known point dialog:





Known tie point type:

Known xyz - xyz coordinates are used for the tie point.

Known xy - xy coordinates are used for the tie point.

Known z - z coordinate is used for the tie point.


Point density required for placing the tie point.

Fit radius

Area within which points are used to calculate the tie point location.

2. Select settings that fit to the laser data and to the known points that are used.

3. Snap to the control point drawn in the CAD file in order to define the location for the tie line in the Full view.

This updates the Entry view and Detail view and adds the tie point to the list.

4. Place the tie point in the Entry view according the the laser data for each tie point position.

If you are not able to place all tie point positions, you can skip a position by selecting the next observation for this tie point. Then use the Clean command to remove undefined positions. You may also change the type of the tie point using the Edit command, for example from Known xyz to Known z, if you are not able to place the tie point at the accurate xy location.

TerraMatch User Guide   13.09.2022   © 2022 Terrasolid Ltd