. Free-hand drawing : a manual for teachers and students. re will generally be a greaterdifference between perspective drawings andmodel drawings than between Figs. 22 and 23. Fig. 24 is a perspective drawing upon a verti-cal plane; it represents two horizontal circularplinths, A and B^ A being directly in front and B placed at theright. This drawing represents the circles ofthe plinth at the left by horizontal ellipses. Theeye sees these circles as horizontal ellipses, andthe part ^ is a true picture, except that itsheight is too great. The horizontal circles of plinth B are repre-sented by i
. Free-hand drawing : a manual for teachers and students. re will generally be a greaterdifference between perspective drawings andmodel drawings than between Figs. 22 and 23. Fig. 24 is a perspective drawing upon a verti-cal plane; it represents two horizontal circularplinths, A and B^ A being directly in front and B placed at theright. This drawing represents the circles ofthe plinth at the left by horizontal ellipses. Theeye sees these circles as horizontal ellipses, andthe part ^ is a true picture, except that itsheight is too great. The horizontal circles of plinth B are repre-sented by inclined ellipses, and so, to givethe right effect, the drawing must be seen ° ^^ ,,, Free-Hand Perspective. from a point opposite CV, and about 4% from the paper. If seen naturally the part B does not form a true SCIENTIFIC PERSPECTIVE AND MODEL DRAWING. 89 picture of the object, and horizontal circles should not be repre-sented by inclined ellipses unless they are tangent to squares, or soplaced that they cannot be represented as they appear, and give. Perspective of Circular Plinths. the correct impression of their position. The plinths A and B areof the same size, but it will be noticed that the perspective of Bis wider than that of A. It appears that all depends upon the position of the station-pointfrom which the drawing is to be seen, and that any drawing whichrequires to be foreshortened in order to look like the object is nota satisfactory representation. The artist naturally draws what willcreate a true picture in the eye when the drawing is seen perpendic-ularly, and any drawing of a single object which requires to be seenobliquely, cannot be accepted as the best picture of the object. The 90 FREE-HAND DRAWING. best picture of any object must be the one which, when not fore-shortened, causes in the eye an image practically like that which theobject itself would produce. Fig. 21 shows that the picture plane which gives a picture whichis similar to the image in the eye
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Keywords: ., bookauthorcr, bookcentury1800, bookdecade1890, booksubjectdrawing
