Grid Builder Command

Creating Timber Cruise points with the Grid Builder in ExpertGPS

The Grid Builder command allows you to create evenly-spaced grids of waypoints, perfectly suited for timber cruises or collecting sample data. The Grid Builder dialog can be invoked from a starting waypoint or from a closed shape (like the outline of a forest tract) - select a waypoint or shape on the map, right-click, and click Grid Builder. From this initial point, you can then specify the height and width of each "cell" in the grid, and choose how many rows and columns will make up the grid. As you enter information, ExpertGPS draws a preview grid on the map. You can switch back and forth between the dialog and the map, which is helpful if you need to zoom in or out, or pan the map around.

In addition to creating a waypoint grid, the Grid Builder command can also outline the grid boundaries by creating Grid Squares or Grid Lines. If you select Grid Squares, ExpertGPS will create a checkerboard pattern of squares that outline each cell. Each cell is a single track, and the Track Type attribute for each track alternates between "Grid Square 1" and "Grid Square 2".

To build a grid of waypoints for a timber cruise or to create a rectangular sampling cell, do the following:

  1. Select a single waypoint or a closed (polygon) shape.
  2. Then, do one of the following:
    • On the Waypoint menu, click Build a Grid of Waypoints.
    • Right-click on the selected waypoint, and click Grid Builder.
Grid Builder
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