Elements of Descriptive Geometry (Classic Reprint)

This book introduces and explores descriptive geometry, a practical subject that places geometry on a solid footing. It establishes foundational principles before giving their applications, recognizing that a strong grasp of first principles is essential for effective use of the subject. The author's approach involves two introductory chapters, one on straight lines and planes and another introducing descriptive geometry and solving problems on straight lines and planes. The book goes on to provide examples of the projections of plane and solid figures and discusses the solution of the spherical triangle. Trihedral angles, curved surfaces, surfaces of revolution, and intersections of curved surfaces are also addressed. Descriptive geometry's importance lies in its role as a tool to represent solid figures on a plane surface and solve solid geometry problems by reducing them to plane geometry problems. The author's focus on establishing principles before applications makes this book an effective and accessible guide for beginners, providing a solid foundation for further study in this field.