
Try the following to smooth a surface in Civil 3D: Smooth contour lines - rebuild your surface with smoothed data: Select a contour line style for your surface representing an adequate equidistance. Make sure that the contour line style has switched on "line smoothing." Select the surface and extract the contour lines with border. Create a new - more smoothed surface with smoothed contour lines.
- Select your surface > type SMOOTHSURFACE.
- Select the Smoothening method. For this example, select Natural interpolation. Press the help for more information.
- Under Point Interpolation, Select output region by clicking on the value column > select Surface (Region or Polygon). Enter an X-Spacing. For example 100 feet.
How do I smooth contour lines on a surface?
Make sure that the contour line style has switched on "line smoothing." Select the surface and extract the contour lines with border. Create a new - more smoothed surface with smoothed contour lines. Select your surface > type SMOOTHSURFACE.
How do I smooth the equidistance of a surface?
Select a contour line style for your surface representing an adequate equidistance. Make sure that the contour line style has switched on "line smoothing." Select the surface and extract the contour lines with border.
How can I make a smooth surface in AutoCAD Civil 3D?
With Civil 3D you can apply a surface edit (call “Smooth Surface…”) that will run some extra algorithms on your surface and make nice smooth contours were you don’t have that much definition to build the surface.
How do you smooth a surface in Revit?
Click OK to smooth the surface. The display of the surface is smoothed; contours are less angular. A Smooth Surface item is added to the Edits list view on the Prospector tab. The Description column in the list view displays the type of surface smoothing that was used ( Natural Neighbor Smoothing ).

How do you smooth contours in c3d?
To smooth the contours, go into the style the surface is using and, on the contours tab, toggle the option to smooth the contours to True. Once you have this toggled on, you can select the type of smoothing you want to apply to the surface as well as how aggressive you want the contour smoothing to be.
How do you smooth contours?
2:213:29Civil 3D - Smooth Out Those Contours! - YouTubeYouTubeStart of suggested clipEnd of suggested clipIn comparison to the contours that are being displayed in the survey. File. So we'll make thoseMoreIn comparison to the contours that are being displayed in the survey. File. So we'll make those purple. And then if we go to the contours tab there's a contour smoothing. Option at the bottom smooth
How do you fix contour in Civil 3d?
To Edit ContoursSelect the contour graphically or by using an AutoCAD command, such as PEDIT or PROPERTIES.Perform the edit to the contour. ... Rebuild the surface to update the contour definition by right-clicking the surface in the Prospector tree and clicking Rebuild.
How do you change the contour interval in Civil 3d?
0:554:31Changing Contour Intervals in Civil3D - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo the first thing if we want to change the contour interval is to select the surface by clickingMoreSo the first thing if we want to change the contour interval is to select the surface by clicking art then come up to surface properties. And here is where you would normally pick.
What are weeding factors in Civil 3d?
Answer. Weeding is the removal of points along a selected polyline representing a contour. The weeding factors determine the amount of points removed. You can use weeding to reduce the amount of point information taken from the contours that may not be necessary to generate an accurate surface.
How do you smooth a contour plot in origin?
In order to smooth the lines in a contour plot you need to smooth the data in the matrix it is plotted from. Do this by using the Analysis: Signal Process: Smooth from the Origin menu. This will perform a smoothing routine on your data and the associated contour plot will become smooth with the new values.
How do you remove surface contours?
4:346:31How To Delete Extra Contour Lines From Surface In AutoCAD Civil 3dYouTubeStart of suggested clipEnd of suggested clipLine when we will click on the line it will also show contextual tab and we have edit surface go onMoreLine when we will click on the line it will also show contextual tab and we have edit surface go on edit surface. And select delete lines.
What do you mean by contours?
an outline1 : an outline especially of a curving or irregular figure : shape the sleek contours of the car The map shows the contour of the coastline. also : the line representing this outline. 2 : the general form or structure of something : characteristic —often used in plural the contours of a melody…
How do you trim contours?
0:081:28Trimming Surface Contours using a Hide Boundary - YouTubeYouTubeStart of suggested clipEnd of suggested clipI happen to be working on expand that out so this is my existing ground surface expand. Out myMoreI happen to be working on expand that out so this is my existing ground surface expand. Out my definition. And I'm gonna add a boundary. So I'll just right-click on boundaries. I'll click on add.
What is contour in Civil 3D?
Contours are graphical illustrations of surface elevation changes. You can create a surface from contours drawn as 2D or 3D polylines where each unique polyline contains points that are all at the same elevation.
How do you create a surface style?
You can create and manage surface styles on the Settings tab in Toolspace. In Toolspace, on the Settings tab, right-click the Surface Styles collection and click New. In the Surface Style dialog box, click the Information tab and enter a name and description for the surface style.
How do I change the surface style in Civil 3D?
To apply or create a new surface style, Select the working surface, Prelim-EG surface, by clicking anywhere on its contours in the drawing, or by selecting it in the Prospector. Right-click then Select. Right-click in an empty spot in the drawing area and select Surface Properties.
What do you mean by contours?
an outline1 : an outline especially of a curving or irregular figure : shape the sleek contours of the car The map shows the contour of the coastline. also : the line representing this outline. 2 : the general form or structure of something : characteristic —often used in plural the contours of a melody…
What is contour approximation?
What Is Contour Approximation? Contour approximation, which uses the Ramer–Douglas–Peucker (RDP) algorithm, aims to simplify a polyline by reducing its vertices given a threshold value. In layman terms, we take a curve and reduce its number of vertices while retaining the bulk of its shape.
What is cv2 approxPolyDP?
The process of approximating the shape of a contour of a given polygon to the shape of the original polygon to the specified precision is called approximation of a shape of the contour. We make use of a function in OpenCV called approxPolyDP() function to perform an approximation of a shape of a contour.
Where is Surface 4D.dwg?
Open Surface-4D.dwg, which is located in the tutorials drawings folder.
Can you delete smooth surface edit?
You can delete the Smooth Surface edit from the list, but this does not reverse the smoothing operation until you rebuild the surface. You can also reverse the smoothing operation by using the U (undo) command. To continue to the next tutorial, go to Creating a Watershed and Water Drop Analysis.
Why is smoothing a surface more than straight interpolation?
It's more than a straight interpolation because the algorithm attempts to detect slope pattern and compute the new points based on those patterns.
Can you smooth contours?
As @johngordon6189 said. smoothing contours is only visual. Smoothing the surface adds point and triangles based on an algorithm that tries to estimate the most likely elevations for those points based on the adjacent information. You can Smooth the whole Surface of define an area to be smothed This makes the Surface no more correct or incorrect than any other editing of that Surface.
Does smoothing contours affect triangulation?
Smoothing the contours will not affect the triangulation, it only adds verticies to the contours. Yes that will affect earthwork slightly, but smoother contours are more indiciative of natural conditions.
Is smoothing contours visual?
Not really. Smoothing contours is purely visual. Similar to fitting a curve to or splining a polyline.
