Adding a Fixed Vertical Tangent by Best Fit

To add a fixed vertical tangent by best fit from AutoCAD Civil 3D points

1. Set the profile view style Vertical Exaggeration value to 1.0000. See Creating and Editing Profile View Styles for more information.
2. Click the profile. Click Profile tabModify Profile panelGeometry Editor .At the Command prompt, enter EditProfileLayout.
3. In the Profile Layout Tools toolbar, click Fixed Tangent - Best Fit.
4. In the Tangent by Best Fit dialog box, select From COGO Points.
5. In plan view, select two or more points. Enter G to select a point group or N to enter points by number.

   As the points are selected in plan view, an X marks each regression point and a temporary, dashed tangent is displayed in the profile view.

6. Press Enter to complete the command.
7. In the Panorama window, use the Regression Data vista to modify the regression points.

   As you highlight a row in the Regression Data vista, the corresponding regression point in the drawing window is highlighted in red.

8. Create the tangent:
   • Click to create the tangent and keep the Regression Data vista open.
   • Click to create the tangent and close the Regression Data vista.

To add a fixed vertical tangent by best fit by clicking on screen

1. Set the profile view style Vertical Exaggeration value to 1.0000. See Creating and Editing Profile View Styles for more information.
2. Click the profile. Click Profile tabModify Profile panelGeometry Editor .At the Command prompt, enter EditProfileLayout.
3. In the Profile Layout Tools toolbar, click Fixed Tangent - Best Fit.
4. In the Tangent by Best Fit dialog box, select By Clicking On The Screen.
5. Select a starting point and at least one other point.
   Note

   You can use OSNAP or transparent commands to select points.

   As you select points in the drawing window, an X marks each regression point and a temporary, dashed tangent is displayed in real time.

6. Press Enter to complete the command.
7. In the Panorama window, use the Regression Data vista to modify the regression points.

   As you highlight a row in the Regression Data vista, the corresponding regression point in the drawing window is highlighted in red.

8. Create the tangent:
   • Click to create the tangent and keep the Regression Data vista open.
   • Click to create the tangent and close the Regression Data vista.

To add a fixed vertical tangent by best fit from existing entities

1. Set the profile view style Vertical Exaggeration value to 1.0000. See Creating and Editing Profile View Styles for more information.
2. Click the profile. Click Profile tabModify Profile panelGeometry Editor .At the Command prompt, enter EditProfileLayout.
3. In the Profile Layout Tools toolbar, click Fixed Tangent - Best Fit.
4. In the Tangent by Best Fit dialog box, select By Clicking On The Screen. Specify the tessellation and mid-ordinate tolerance settings.
5. Select one of the entities listed on the command line.
   Note

   You can select several types of entities listed on the command line.

6. If you selected a profile entity, specify the starting and ending station on the Specify Station Range dialog box.
7. Repeat steps 5 and 6 to select other entities from which to create the best fit tangent.

   As you select entities in the drawing window, an X marks each regression point and a temporary, dashed tangent is displayed in real time.

8. Press Enter to complete the command.
9. In the Panorama window, use the Regression Data vista to modify the regression points.

   As you highlight a row in the Regression Data vista, the corresponding regression point in the drawing window is highlighted in red.

10. Create the tangent:
    • Click to create the tangent and keep the Regression Data vista open.
    • Click to create the tangent and close the Regression Data vista.