Fit to nearest spline
Suppose that there is a spline near the grid, now we want to move the edge grid nodes on a grid line segment to that spline, as shown in Figure 1. First, select the grid layer, hold the Shift then LMC on two edge grid nodes on the same grid line segment, the segment will be highlighted (its color is purple), LMC on the third grid node to define the impacted area. Next, RMC to show options then select Fit to Nearest Spline option. Figure 2 shows grid after selecting Fit to Nearest Spline option.
Figure 1 LMC options.
Figure 2 Grid nodes after selecting "Fit to Nearest Spline".
Fit to nearest land boundary
Suppose that there is a land boundary line (overlay) near the grid, now we want to move the edge grid nodes on a grid line segment to that land boundary, as shown in Figure 3. First, select the grid layer, hold the Shift then LMC on two edge grid nodes on the same grid line segment, the segment will be highlighted (its color is purple), LMC on the third grid node to define the impacted area. Next, RMC to show options then select Fit to Nearest Land Boundary option. Figure 4 shows grid after selecting Fit to Nearest Land Boundary option.
Figure 3 LMC options.
Figure 4 Grid nodes after selecting "Fit to Nearest Land Boundary".
Line Attraction
Line Repulsion