Excerpt from Hints for Crystal Drawing
As a result of these relations vertical directions retain their original dimensions; but distances from front to back or right to left are diminished in certain fixed proportions dependent upon the angle of rotation and the angular elevation of the line of sight.
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Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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Excerpt from Hints for Crystal Drawing
As a result of these relations vertical directions retain their original dimensions; but distances from front to back or right to left are diminished in certain fixed proportions dependent upon the angle of rotation and the angular elevation of the line of sight.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Excerpt from Hints for Crystal Drawing
The accurate representation of geometrical relations in three dimensions is always a matter of difficulty, and this is especially the case with the forms of crystals. The most obvious course is to resort to models, but these are troublesome to construct, and occupy considerable space, so that for all practical purposes some method of representation in two dimensions, in other words a projection on a plane surface, such as a sheet of paper, must be employed.
The stereographic, gnomonic and linear projections, though admirable as exact records of the disposition in space of the faces, are unsuited to the elementary student who requires a projection that will enable him to realise at once the general form of the crystal. Ordinary perspective is, on the other hand, objectionable because the parallelism of lines is not preserved, and the scale of representation varies according to the distance from the point of view.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
"Sobre este título" puede pertenecer a otra edición de este libro.
Librería: Forgotten Books, London, Reino Unido
Paperback. Condición: New. Print on Demand. This book, a guide to isometric crystal projection, is the ideal resource for anyone wanting to translate complex three-dimensional shapes associated with crystals into precise two-dimensional drawings. The author's instruction places heavy emphasis on accuracy and offers a valuable collection of solutions to typical problems. In addition to clear explanations of methods, this book provides a comprehensive grounding in relevant geometrical concepts, such as the importance of axes and the significance of various ratios and angles, providing readers with a robust toolkit of knowledge. This book is bound to provide students with the clarity and confidence needed to succeed in crystal projection drawing. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Nº de ref. del artículo: 9781330836644_0
Cantidad disponible: Más de 20 disponibles
Librería: PBShop.store US, Wood Dale, IL, Estados Unidos de America
PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000. Nº de ref. del artículo: LW-9781330836644
Cantidad disponible: 15 disponibles
Librería: PBShop.store UK, Fairford, GLOS, Reino Unido
PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000. Nº de ref. del artículo: LW-9781330836644
Cantidad disponible: 15 disponibles