00:10civil 3d has a robust set of tools to help you edit feature lines by adjusting the geometry of
00:16these lines start by creating a feature line in your drawing select the feature line and in the
00:23contextual ribbon in the modify panel click edit geometry to toggle the display of this
00:29panel you can edit feature lines using these tools first insert points of intersection on a feature
00:37line from the edit geometry panel click insert pi and select a point in the drawing in this case
00:45snap to a contour line the command window prompts you to specify the elevation or use the surface
00:52elevation because a contour was selected the elevation of the contour displays at the command
00:59prompt press enter to accept press enter again and then escape the pi now appears in the drawing
01:08to remove the pi in the edit geometry panel simply click delete pi and then click the pi in the
01:15drawing
01:17next review some of the tools in the edit geometry panel and select fill it to add a fill it
01:23at point
01:23d in this example the command window prompts you to specify a corner or radius in this case select
01:31radius and enter 100 hover the cursor over the desired fillet location in the drawing here point d and a
01:40preview of the curve displays to adjust the curve in the command line click radius and this time enter 250
01:4950 in the drawing click the location for the fillet and then press enter to add the curve
01:57to edit the curve from the edit geometry panel select edit curve in the drawing select the curve to open
02:05the
02:05edit feature line curve dialog box in this example in the radius field enter 200 click ok and the curve
02:14adjusts
02:16use the create a feature line from stepped offset tool when adding feature lines that have a horizontal
02:21and vertical offset at the same time in this example to create a five foot bottom ditch from the feature
02:28line in the drawing select the feature line and then in the edit geometry panel select create a feature
02:35line from stepped offset on the command line to specify the offset distance enter a value of 2.5
02:45next specify the side to offset in this case click north of the existing feature line at the command
02:53prompt enter an elevation difference of zero the offset line appears above the original feature line
03:00select the original feature line again and repeat the steps but this time specify the offset side by
03:07clicking south of the feature line the offset line appears below the original repeat twice more select
03:15the top feature line enter 12 click north of the line and enter 4 then select the bottom line enter
03:2512
03:26click south of the line and enter 4
03:31to view the lines in 3d select the feature lines you just created in the drawing then right click
03:39and select object viewer in the object viewer expand the view drop down and select se isometric
03:47notice that you have the start of a ditch
03:51select all the ditch feature lines and in the contextual ribbon
03:55click add to surface as break line in the select surface dialog click create surface in the create
04:03surface dialog in the name field type ditch click in the style field to display the select surface
04:11style dialog and in the drop down select borders and contours and slopes click ok four times to close
04:19the dialog boxes now rotate and pan the view to see the contours depicting the ditch using the edit
04:27geometry tools such as insert pi fillet and edit curve you can easily adjust feature lines and create the
04:35the components you need for your project
