To place nodes along the boundary of a fence

Select Place Nodes.
Select the appropriate color mask.
From the Entity option menu, choose Line or Outline.
Select Fence as the Boundary option.

Note: You cannot access this option when a fence is not present.
If there is a fence, you are prompted to accept it by entering a data point.
If Line is chosen, nodes are placed everywhere the boundary of the fence crosses raster lines. Outlines or edges are not considered.

If Outline is chosen, nodes are placed everywhere the boundary of the fence crosses the edge of raster objects or lines. Both sides of raster lines are considered.

Both Raster Snap and Vector Snap toggles are disabled with this option.