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Published in:
2016 | OriginalPaper | Chapter
5. Curve Features
Authors : Elias C. Tonias, Constantine N. Tonias
Published in: Geometric Procedures for Civil Engineers
Publisher: Springer International Publishing
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Abstract
The procedures addressed in this chapter are those that generate a circle or a circular arc by various construction techniques. Procedures that generate spirals and address their interaction with lines, circular arcs, and other spirals are addressed separately in Chap. 9. Similarly, procedures that address parabolic curves are presented in Chap. 11, while elliptic features are included in Chap. 12. Quadratic or cubic curves may be created by use of the
iclagr1 subroutine addressed in Chap. 3, and in which the argument NPTDAT should be set to 3 for a quadratic, and to 4 for a cubic curve. This procedure may also be used to create other curve shapes by increasing the number of points.