How do you clip a surface in Civil 3D?

How do you clip a surface?

To clip a surface:

  1. Ensure that the object to be clipped is the bottom object.
  2. Select the object to be clipped.
  3. Select the clipping object.
  4. Select Modify > Clip Surface.

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 mask a surface in Civil 3D?

In Toolspace, on the Prospector tab, expand the surface collection, right-click Masks, and click Create Mask. From the drawing, select an object or multiple objects to define the mask. Press Enter .

What are the 4 types of boundaries in Civil 3D?

There are 4 types of boundaries; Outer, Hide, Show and Data clip.

How do you make a surface smaller in Civil 3D?

Select a surface. On the Surface tab, Modify panel, click Edit Surface drop-down Simplify Surface Find. If more than one surface is available in the drawing, click the surface that you want to simplify or press Enter to select a surface in the Select A Surface dialog box.

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What is a mask in Civil 3D?

Masks can be used to block out areas of a surface and prevent them from being displayed or to render a section of the surface using a specified render material. Masks can be defined from AutoCAD Civil 3D parcels and from polygon-type objects.

How do I mask a label in Civil 3D?

Civil 3D Labels:

The last way in Civil 3D to add a mask to a label is through the Label Styles dialog box. On the Layout tab of the Label style underneath the Border section, there is a setting for Background Mask. Setting it to True will turn it on and setting it to False will turn it off.

How do I add boundaries to my surface?


  1. Click Home tab Layers panel Layer drop-down. Next to the _EG-BNDY layer, click . …
  2. In Toolspace, on the Prospector tab, expand the SurfacesEGDefinition collections. Right-click Boundaries. …
  3. In the Add Boundaries dialog box, specify the following parameters: Name: EG – Outer. …
  4. Click OK.
  5. Select the blue polyline.

How do you add multiple boundaries to a surface in Civil 3D?

To Add Boundaries to a Surface

  1. In Toolspace, on the Prospector tab, expand the surface Definition collection, right-click , and click Add.
  2. In the Add Boundaries dialog box, enter the boundary name in the Name field.
  3. Select the boundary type from the Type list.
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