. Model drawing and shading from casts; a complete guide to the elementary and advanced examinations in these subjects; . Fig. 35. excluded) the shadow will he parallel to the line. Wemay further say that MG is the shadow of am. Noticethat the shadow of a vertical line will ahcays tell us thedirection and altitude of the sun. The shadow of verticallines will therefore always he parallel to each other if thesurface on which they fall is level. Parallel retiring LIGHT AND SHADE. 71 shadows will of course follow the rule given for parallelretiring lines. This will be seen in the second rowof figu
. Model drawing and shading from casts; a complete guide to the elementary and advanced examinations in these subjects; . Fig. 35. excluded) the shadow will he parallel to the line. Wemay further say that MG is the shadow of am. Noticethat the shadow of a vertical line will ahcays tell us thedirection and altitude of the sun. The shadow of verticallines will therefore always he parallel to each other if thesurface on which they fall is level. Parallel retiring LIGHT AND SHADE. 71 shadows will of course follow the rule given for parallelretiring lines. This will be seen in the second rowof figures when the rays meet the cards follows then that any deviation from this directionwill indicate some change in the position of the line,or some undulations in the surface on which theshadow falls. This is illustrated in the third figureon the top row, when the shape of the shadow tellsus that the line PR is the edge of a surface slopingupwards. The surface abnm is said to be in shade,while the shape mnhg is called the cast the rays of light come in contact with a surface,light is reflected
Size: 2601px × 960px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublisherlondonchapmanandha
