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Suppose that there is a grid with the node's elevation shown (Figure 6). How to To show grid elevation is described in , RMC on the grid layer then select Show Labels/Bottom Elevation option.
Now we draw a polyline that is over the grid. After drawing a polyline, LMC on that polyline will be highlighted (It turns red). Then select the grid layer in the Layer Control by LMC on that layer. Next, move the cursor near to the polyline and then RMC to display options as shown in Figure 7.
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