How do you cut a surface in Civil 3D?

How do you trim a surface?

To trim a surface:

1. Create two or more surfaces that intersect at one or more points, or create a surface that intersects with a plane or has a sketch on its face.
2. Click Trim Surface on the Surfaces toolbar, or click Insert > Surface > Trim.
3. In the PropertyManager, under Trim Type, select a type:

How do you trim a 3D surface in Autocad?

Trim a Surface

1. Click Surface tab Create panel Trim. Find.
2. Select the surface and press Enter.
3. Select the cutting curves and press Enter.
4. Select the surface areas to remove and press Enter. The selected areas are remove d.

How do you calculate cut and fill by hand?

For each section line the cut area and the fill area is determined. The volume between two sections is determined as the average area of the two sections multiplied by the distance between them. By adding together the volumes between all of the sections the total cut and fill volumes are obtained.

How do you trim in Autocad?

To Trim an Object

1. Click Home tab Modify panel Trim. Find.
2. Select the objects to serve as cutting edges. Press Enter when you finish selecting the cutting edges. …
3. Select the objects to trim and press Enter a second time when you finish selecting the objects to trim.

How do you crop a surface in Autocad?

Cropping Surfaces

1. Click Home tab Create Ground Data panel Surfaces drop-down Create Cropped Surface . …
2. In the Create Cropped Surface dialog box, Crop Information section: …
3. Specify the new surface information:

How do you cut a mesh in Autocad?

Cut meshes

1. Choose the Mesh > Mesh Partitioning > Mesh Cut tool.
2. Follow the tool’s prompts to select the mesh and projected curve(s). (The curves must still have their construction history intact.)
3. Click the Cut button in the lower right corner of the window.