The Delete Bottom Elevation tool is used to clear the bottom elevation of the nodes within a defined area or in the gridline.
To view the bottom elevation of grid nodes, select the grid layer in the Layer Control, then RMC to display options, and select Show Labels / Bottom Elevation as shown in Figure 1. The bottom elevation values of nodes is then displayed. The following steps describe how to remove the bottom elevation of selected grid nodes.
- Select the grid layer in the Layer Control by LMC on that grid layer
- Set the mouse in the selection mode, hold the Shift key and LMC on two grid nodes either on the same grid line segment or different gridline segments. The grid block will be highlighted. Next, release Shift, then RMC to show options, and select the Delete Bottom Elevation, as shown in Figure 2. As a result, the bottom elevation of nodes will be removed.
- To update the view of the bottom elevation of grid nodes after using the Delete Bottom Elevation, select show labels for bottom elevation as mentioned in Figure 1, the grid nodes whose bottom elevation has been removed will display as NaN labels as shown in Figure 3.
Figure 1 Show bottom elevation labels of grid nodes.
Figure 2 Delete Bottom Elevation option.
Figure 3 Bottom Elevation labels of grid nodes after using the Delete Bottom Elevation option.
Figure 4 A Modify Bottom Elevation option.
Figure 5 Modify Selection form.
Figure 6 Show bottom elevation labels of a grid.