How do you make a polyline into a surface in AutoCAD?

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.

Moreover, how do I convert lines to surface in Autocad? Click Modeling tab > Surface panel > Convert to Surface. Select the objects you want to convert and press Enter. You can convert 2D solids, meshes, regions, planar 3D faces, and polylines, lines, and arcs with thickness.

Correspondingly, how do I convert 3D polyline to surface in Autocad? You can use the SURFPATCH command to convert a closed 3D polyline to a surface patch (3D surface). The command option _Curves and selection of the boundary control curve will create a patch surface associative to this curve.

Additionally, how do you make a surface in Autocad?

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.

People ask also, how do you convert polyline to contour? Create a surface, open the definition tab, add the polylines (that have valid elevations) to the surface as Contour data. Note that contour data alone is not a preferred way to define a surface as breakline, point data and boundaries are absent and likely played a role in creating those polylines you call contours.You can convert all, or a selection of, the closed polylines in an existing drawing to polygon objects. When you convert a closed polyline, the original polyline is erased and is replaced with a polygon object. Set the PROXYGRAPHICS system variable to 0. On the command line, enter mappolylinetopolygon.

How do you make a surface from polyline Civil 3d?

1. Confirm that TIN surface is selected as Type.
2. Select the desired Surface layer and Style.
3. Click <> to close the Create Surface dialog box.
4. On the Prospector tab of the Toolspace, expand the Surfaces node.

How do you make a polyline into a 3d face?

How do you make a 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. Either method will bring the Create Surface Dialogue Box up as shown below.

What are Breaklines in Civil 3d?

Breaklines are line data that can improve a surface. They provide more information to the surface and influence how it is triangulated. Adding a breakline forces the surface to create triangles connecting the vertices on the breakline.

How do you make a polyline on 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 make a surface on a feature line?

Create your surface, go to definition_breaklines (right click), add breaklines give them a name, and select the feature lines. All done. Go to the Surface definition and add them a breaklines or select them, right click and select “Add to Surface as Breakline”.

How do you make a 2D surface in AutoCAD?

How do I add a line to a surface in Civil 3D?

In Toolspace, on the Prospector tab, expand the surface Definition collection, right-click , and click Add Line. At the command line, you are prompted to select the endpoints for the new TIN line.

How do you solid fill an object in AutoCAD?

1. First set the layer that you want to use for your solid fill.
2. On the Home tab in the Draw panel, click Hatch.
3. In the Pattern panel, choose Solid.
4. If you have one closed area, you can just click inside it to pick an internal point.
5. Press Enter to end the HATCH command.

How do you explode a polyline in AutoCAD?

1. Click Modify > Explode (or type Explode).
2. In the graphics area, select objects to explode and press Enter. The selected objects are exploded. You can edit the individual objects.