The grid extraction option allows the extracting of a part of a grid from the grid shown in the Layer Control panel. This option can be implemented by using either a selected grid block or a polyline overlaid on the selected grid as described below.
(1) Extract grid from selected grid block
- Select the grid layer in the Layer Control by LMC
- From the main toolbar, select the Select object button and then select a grid node. Hold Shift key and select the second grid node. The grid block will be highlighted as shown Extract Grid Nodes#Figure 1.
- Next, RMC and select Extract Grid Block option. A new grid layer will be created in the Layer Control as shown in Extract Grid Nodes#Figure 2.
Figure 1 Extract Grid Block option.
Figure 2 Extracted grid from a selected grid block.
(2) Extract grid from a selected polygon
- Select the Add a New Polyline from the main toolbar
- Start drawing a polygon that overlays a grid in the workspace (LMC to start and RMC to end drawing)
- From the main toolbar, select the Select object button, then click on the polygon. It will be highlighted as shown Extract Grid Nodes#Figure 3.
- Select the grid layer in the Layer Control by LMC on that grid layer
- RMC on the workspace to show RMC's options, select Extract Grid Inside the Selected Polygon option. A new grid layer will be created in the Layer Control as Extract Grid Nodes#Figure 4.
Figure 3 Extracted grid inside the selected polygon option
Figure 4 Extracted grid Inside from a selected polygon.