. Augsburg's drawing, book 2. We see the top of blocks A and B, Fig. 3, because they arebelow the horizon line (level of the eye). The top of the block Cis on a level with the eye and the top of block D is above the levelof the eye, hence their tops cannot be seen. We can see the rightface of block A because it is at the left of the eye. We can seethe left face of blocks C and 1), because they are at the right ofthe eye. We cannot see either the right or left face of block B,because it is directly below the eye. In Fig. 4 the top of stumps A and B show because they arebelow the level of the ey
. Augsburg's drawing, book 2. We see the top of blocks A and B, Fig. 3, because they arebelow the horizon line (level of the eye). The top of the block Cis on a level with the eye and the top of block D is above the levelof the eye, hence their tops cannot be seen. We can see the rightface of block A because it is at the left of the eye. We can seethe left face of blocks C and 1), because they are at the right ofthe eye. We cannot see either the right or left face of block B,because it is directly below the eye. In Fig. 4 the top of stumps A and B show because they arebelow the level of the eye (horizon line). The top of stump Ccannot be seen because it is on a level with the eye and the topof stump D cannot be seen because it is above the eye. The leftend of log E can be seen because it is at the right of the eye. Theright end of log F can be seen because it is at the left of the end of log G can be seen because it is directly belowthe eye. 46 AUGSBURGS _ -^ -^ U^J^^- .^\m^^.d^iM^^^^^^ ^ ^[ Vi .^^ What receding lines vanish at the center of vision? Horizon-tal receding lines ; that is, lines that pass directly away from you,and are parallel with the surface of the earth. All the recedinglines that have been used thus far are horizontal receding. Is the horizon line a fixed line, and is the center of vision afixed point? No, 3our horizon line changes as you change. Ifyou are standing on a plain, your horizon line (level of the eye)is low down. If you ascend a hill or mountain, it rises Avith you. The center of vision chan2:es ri^ht or left in the horizon lineas your eje changes. It is always opposite the eye. Is it always necessary to use the horizon line and the center ofvision in drawing? No. They are merely aids, and may be usedor not at pleasure. AVhen drawing conceptively they are veryuseful, but when drawing perceptively (that is, from the object)they are not so useful. Their greatest use is in assisting the mindto judge cor
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdrawing, bookyear1901
