. Perspective for art students . n the ground-plane a rectangle12 feet long and 8 feet wide, its longer side receding to theright at 40° to the picture-plane, the nearest corner being3 feet to the left and 3 feet within the picture. This is theupper edge of a tank with vertical sides ; the bottom of thetank is a horizontal plane 1 foot below the level of theground. In the centre of this lower plane erect a taperingshaft 12 feet high, its base 4 feet square, its top 3 feetsquare and parallel to the base, the edges of base and topbeing parallel to the horizontal edges of the tank. The top 192 Pe
. Perspective for art students . n the ground-plane a rectangle12 feet long and 8 feet wide, its longer side receding to theright at 40° to the picture-plane, the nearest corner being3 feet to the left and 3 feet within the picture. This is theupper edge of a tank with vertical sides ; the bottom of thetank is a horizontal plane 1 foot below the level of theground. In the centre of this lower plane erect a taperingshaft 12 feet high, its base 4 feet square, its top 3 feetsquare and parallel to the base, the edges of base and topbeing parallel to the horizontal edges of the tank. The top 192 Perspective of the shaft is the base of a pyramid 2 feet high. The eyeis 12 feet from the picture and 7 feet above the grovmd. Scale, i an inch to afoot. (18 marks.) The horizon must he drawn across the short way of thepaper, 5 inches from the top, and the centre of vision placed7 inches from the left-hand edge of the paper. In all cases it is well to make a sketch before com-mencing work of the probable appearance of the object,. Pig. 146.—The subject of Question 2. and especially should this be done when no diagramsaccompany the question. The subject of Question 2 is somewhat that shown in Solving Problems 193 Fig. 146. It is better, in making these sketches, not toattempt delicacies of foreshortening, but rather to makesuch drawings as reveal all the parts of the subject. The specification requires us to first think of a rectangleas the ground-plane, and then to imagine another plane1 foot below it, on which is the base of a tapering practice it will be more convenient to at once go tothe lower level and treat the bottom of the tank as ourbasal plane. In setting out our scaffold for the problem, we may putour ground-line 7 feet below the edge, but it would bebetter to leave the ground-line out for the present, andput a new ground-line 8 feet below. This is done in , which is a sketch of the working. Upon this plane f^Pl MPT.
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Keywords: ., bookcentury1900, bookdecade1910, booksubj, booksubjectperspective
