Mechanical drawing self-taught: comprising instructions in the selection and preparation of drawing instruments. Elementary instruction in practical mechanical drawing. Together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers (1889)
Fij III. matter if the piece is to look natural; and all that be done is to shade the top darkly and let the light fall mostly at and near the bottom. An example of line shading to denote the relative distances from the eye of various surfaces is given in Figure 113, where the surfaces most distant… … of % 1 T i! 1 ■ :.1 ■ 1!ijij liii U 1 r-^^^ Fig. 113. shading being governed by the width apart of thelines. 90 MECHAXICAL DRAWING SELF-TAUGHT. Line shading Is often used to denote that the piecerepresented is to be of wood, the shade Hnes being In
Mechanical drawing
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