Autodesk CIVIL3D Tutorial - Page 89
Select the other Add Boundary operation. Click, Surface Properties.
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The polyline is added to the EG surface definition as a boundary, but the point data did not change. Data clip boundaries only affect surface editing operations that are performed after the data clip boundary has been added. Because the points were added to the surface before the Corridor boundary, the boundary currently does not affect the point data. In the following steps, you will rearrange the surface definition operations so that the points will be restricted to the extents of the new Corridor data clip boundary. 6 In Toolspace, on the Prospector tab, right-click the EG surface. Click Surface Properties. 7 In the Surface Properties dialog box, on the Definition tab, in the Operation Type column, examine the order of the operations. The operations you performed in this exercise are listed in the order in which they were performed. The Site data clip boundary was added first, and it affects the operations that follow it. The Corridor data clip boundary was added last, so it currently does not affect any other operations. 8 Select the last Add Boundary operation in the list. Click Add Boundary operation to the top of the list. to move the 9 Select the other Add Boundary operation. Click Boundary operation to the bottom of the list. to move the Add 10 Click Apply. 11 In the Surface Properties - Rebuild Surface dialog box, click Rebuild the Surface. When the surface rebuilds, the points outside the orange Corridor data clip boundary are excluded from the surface. Exercise 1: Limiting Imported Surface Data | 77
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