The Extract Boundary tool extracts the boundary from a surface, stockpile or cut/fill item.
The extracted boundary will be a newly created item and the original item will remain unchanged. The Extract Boundary tool only works on the selected item (or items) and appears in the TOOLS tab. When multiple items are selected, the operation is done sequentially for each item.
- Select your surface, stockpile or cut/fill item
- Go to the TOOLS tab.
- Click Extract Boundary in the Create group.
- The boundary will be created in the active layer.
Extract Boundary from a surface item
The illustration on the right shows the boundary that is extracted from the surface item on the left.
Extract Boundary from a stockpile item
The illustration on the right shows the boundary that is extracted from the stockpile item on the left.
Extract Boundary from a cut/fill item
The illustration on the right shows the boundary that is extracted from the cut/fill item on the left.
The tool will extract the boundary from your entire cut/fill area. This includes the transparent areas shown in the illustration above. Set Min. Cut/Fill property to 0 if you want to get an idea of the entire area first.
If you want to extract the boundary from a certain cut or fill area, extract that cut or fill area first with the Extract Cut/Fill Area tool, then extract the boundary from the extracted cut/fill item.
A boundary is created for the holes as well if you have holes in your surface, stockpile or cut/fill item. For such cases, the output will be multiple boundaries (for the out and inner edges). The illustration below shows 2 boundaries that are extracted from an input surface that contains a hole over the small pond.
You can use Extract Boundary, when you want to create a surface, stockpile or cut/fill item on your drone data that matches exactly with the extent of an earlier analysis. Extracting a boundary and/or editing it, will save time compared to drawing the entire boundary again.