LESSON 18: Drawing Tangents, Curves, and Spirals

AutoCAD Land Desktop Tutorial

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LESSON 18: Drawing Tangents, Curves, and Spirals

Draw tangents, curves, and spirals to lay out alignment centerlines. Create new alignments and edit existing alignments by connecting tangent segments with circular curves and spirals. Use speed tables to draw curves and work with attaching multiple alignment objects.

To work through this lesson follow these steps:

  1. Start AutoCAD Land Desktop if you have not already done so.

  2. On the File menu, click Open to display the Open Drawing: Project Based dialog box.

    The default location folder for project files is c:\Land Projects <Version Number>. If you opted to install these files in another location instead, specify the appropriate project path.

  3. From the Project Name list, select TUTORIAL2, from the Select Project Drawing list, select Lesson-18.dwg, and then click OK.

  4. On the Projects menu, click Workspaces to display the Workspaces toolbar. In the list, select Land Desktop to display the Land Desktop menus.

Working through these lessons will result in alteration of the project files. Backup copies of these project files can be found in the c:\Program Files\AutoCAD Land Desktop <Version Number>\Landtut folder.

If this lesson has been previously run, copy these unaltered project files to the \Land Projects <Version Number> folder when starting a new tutorial session to ensure that the sequence outlined in each lesson can be followed properly.