Best answer: How do you create a surface from contour lines in Civil 3D?

How do you make a surface from contour lines in AutoCAD?

use AutoCAD Civil3D. Briefly, in the Prospector, go to the Surfaces node and expand it. Right-Click on Surfaces and Create Surface. You will be able to create the surface based on multiple data sources including contours (the lines must be at the correct elevation), drawing objects, points and breaklines.

How do you convert polyline to surface in Civil 3d?

To project a 2D line, polyline or feature line to the surface:

1. In the command line, type FEATUREELEVSFROMSURF command.
2. Select the surface to which the object will be projected.
3. Select the desired object(s).

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

Click Home tab Create Ground Data panel Surfaces drop-down Create Surface Find. In the Create Surface dialog box, in the Type list, select TIN Surface.

How do I create a new surface in Civil 3D?

Go to the Prospector tab in Toolspace and right click on Surfaces, select Create Surface. Alternatively, you can type CREATESURFACE at the command line.

How do you make a surface in Autocad?

To Create a Surface by Pressing or Pulling

1. Click Home tab Modeling panel Presspull. Find.
2. Click an edge of 3D object, an open spline, an arc, or another 2D object that does not form a closed area. …
3. Enter a value or click in the drawing area to indicate the height of the new surface object.

How do I turn a shapefile into a surface?

Solution:

1. Connect to your SHP file first so you can create a polygon for the exact area that you want to query.
2. In Civil 3D, go to Home>Create Ground Data>Surfaces>Create Surface from GIS Data.
3. Select the Data source type and log in to connect to it.

How do you add a polyline to a surface?

Open the AutoCAD Properties palette, select a polyline, and note that the elevation of that polyline is not 0.00. If you have polylines without elevations, they must be modified to the correct elevation before placing them into your surface. Also, once they are placed in your surface, you cannot delete them.

How do you create a surface from GeoTIFF Civil 3D?

As a workaround, follow these steps to create a surface from a USGS GeoTIFF DEM file:

1. Click Surfaces menu > Create Surface.
2. In the Create Surface dialog box, select Grid Surface for the Surface Type and click OK.
3. In the Prospector tree, expand the Surface name > Definition collection.
4. Right-click the DEM Files item.

What is TIN surface in Civil 3D?

A TIN surface comprises the triangles that form a triangulated irregular network. TIN lines form the triangles that make up the surface triangulation. To create TIN lines, AutoCAD Civil 3D connects the surface points that are closest together.

What is surface in Civil 3D?

A surface is a 3D view of the land that can represent existing conditions, proposed conditions, or any other scenario involving the group’s surface. Understanding what they are and how to work with them is fundamentally important for Civil 3D users.