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Click tab panel drop-down Find.
- In the Create Cropped Surface dialog box, Crop Information section:
- Click to select the source surface to crop.
- Click to specify the crop area in the drawing using the selection window, by drawing a polygon, or by selecting objects.
Note: If you use the select objects option, click inside the polygon you want to use. The specified crop area is highlighted.
- Specify the new surface information:
- Specify a destination for the new surface. You can place it in a new drawing, in any existing drawing, or in the currently active drawing.
- Enter the surface name and description.
- Depending on the type of drawing that you selected in the previous step, specify the destination drawing for the cropped surface.
- Optionally, modify the surface style. By default, Autodesk Civil 3D applies the standard style to the created surface.
- Click to assign a layer for the cropped surface.
If you chose to create a new drawing file for the cropped surfaces, this drawing is saved in the directory where the source drawing resides.